CN219086677U

CN219086677U - Be used for simple and easy auxiliary device of ladder type crane span structure cable horizontal laying

Info

Publication number: CN219086677U
Application number: CN202223048892.1U
Authority: CN
Inventors: 黄佳海; 张佳; 张啸聪; 朱毓梅; 童斌
Original assignee: Shanghai Construction No 4 Group Co Ltd
Current assignee: Shanghai Construction No 4 Group Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-05-26
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a simple auxiliary device for horizontally laying a cable of a ladder-type bridge, which comprises a first base and a second base which are arranged on a horizontal section support of the ladder-type bridge at intervals, wherein a wire-passing screw rod is fixed between the first base and the second base, a rolling rod is sleeved on the wire-passing screw rod, the tops of the first base and the second base are higher than the top of the rolling rod, and the rear end of the cable is arranged on the rolling rod when the cable is laid horizontally. The sliding friction generated by manually pulling the cable when the horizontal cable is laid is converted into rolling friction by using a simple device, so that the friction force is reduced, and the labor force requirement can be obviously reduced; the friction between the cable and the cross arm of the ladder bridge is reduced, so that the cable has a certain positive effect on the protection of the cable insulating layer; the simple device is made of engineering conventional materials, and is convenient to obtain materials and quick to manufacture; the simple device is simple and convenient to use, the construction process of the existing ladder bridge and cable laying is not changed, and additional training is not needed for workers.

Description

Be used for simple and easy auxiliary device of ladder type crane span structure cable horizontal laying

Technical Field

The utility model belongs to the field of building construction, and relates to a simple auxiliary device for horizontal laying of a ladder-type bridge cable, which is used for assisting horizontal laying of a large-diameter cable in a bridge, improving laying efficiency and reducing labor force requirements.

Background

The low-voltage distribution system in the modern building usually adopts a radial type and tree-dry type combined mode, adopts radial type power supply for loads with larger capacity or more important loads, adopts a radial type and tree-dry type combined power supply mode for lighting and general loads, and therefore a large number of power supply trunk cables exist from a building power supply and distribution center to each power utilization point. The material characteristics of the cable require that the whole cable must be pulled simultaneously when being laid, mechanical pulling can be adopted as an aid when the vertical section is laid according to the route, and the manpower pulling mode is generally adopted when the route is changed more in the horizontal section, so that the longer the route is, the more manpower is required. And the cable of major diameter is because own weight is heavier for often need throw in more labours when carrying out horizontal laying, efficiency is lower, needs to increase a convenient, quick auxiliary device and promotes the efficiency of construction.

Disclosure of Invention

The utility model utilizes engineering conventional materials as much as possible to reduce cost investment, and on the premise of being convenient and quick to assemble and disassemble, a set of simple device capable of assisting in horizontally laying the large-diameter cable is arranged on the basis of not changing the existing bridge frame installation and cable laying process, so that the construction efficiency is improved.

The utility model solves the technical problems by the following technical proposal:

the utility model provides a simple auxiliary device for horizontally laying a ladder bridge cable, which is characterized by comprising a first base and a second base which are arranged on a horizontal section support of a ladder bridge at intervals, wherein a wire passing screw rod is fixed between the first base and the second base, a rolling rod is sleeved on the wire passing screw rod, the tops of the first base and the second base are higher than the top of the rolling rod, and the rear end of the cable is arranged on the rolling rod when the cable is laid horizontally.

Preferably, the rollers adopt DN15 galvanized steel pipes.

Preferably, the first base and the second base both adopt channel steel.

Preferably, the length of the rolling bar is not more than 1/2 of the width of the ladder bridge.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.

The utility model has the positive progress effects that:

1. the sliding friction generated by manually pulling the cable when the horizontal cable is laid is converted into rolling friction by using a simple device, so that the friction force is reduced, and the labor force requirement can be obviously reduced;

2. the friction between the cable and the cross arm of the ladder bridge is reduced, so that the cable has a certain positive effect on the protection of the cable insulating layer;

3. the simple device is made of engineering conventional materials, and is convenient to obtain materials and quick to manufacture;

4. the simple device is simple and convenient to use, the construction process of the existing ladder bridge and cable laying is not changed, and workers do not need to be additionally trained;

5. the cable laying device can be conveniently detached from the lower part of the ladder type bridge after the cable laying is completed, and can be recycled in engineering construction.

Drawings

Fig. 1 is a schematic structural view of a simple auxiliary device for horizontal laying of ladder bridge cables according to a preferred embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, this embodiment provides a simple and easy auxiliary device for ladder bridge cable horizontal laying, it includes first base 3 and second base 4 that install the interval setting on the horizontal segment support 2 of ladder bridge 1, first base 3 and second base 4 all adopt the channel-section steel to make, be fixed with logical silk screw rod 5 between first base 3 and the second base 4, the both ends of logical silk screw rod 5 utilize the nut to fix with first base 3 and second base 4 respectively, it is equipped with roller 6 to lead to the cover on the silk screw rod 5, the roller adopts DN15 galvanized steel pipe, the top of first base 3 and second base 4 is higher than the top of roller 6, can be as the horizontal stop gear who prevents the cable landing, places the cable rear end on roller 6 when cable horizontal laying, and the front end is pulled through the manpower, utilizes roller 6 to change the slip friction originally into rolling friction.

The length of the rolling bars 6 can be freely set according to the width of the ladder-type bridge, and the length of the rolling bars is not more than 1/2 of the width of the ladder-type bridge, so that a plurality of cables can be laid in sequence.

During actual installation, the approximate position of the bridge frame on the bracket can be positioned according to the BIM model or construction experience, the base fixing hole position is reserved according to the positioning result when the bracket is processed, and a plurality of fixing hole positions can be reserved according to the specifications of the bridge frame and the cable.

Before the cable is laid, first base 3 and second base 4 are installed on horizontal segment support 2, the bases and horizontal segment support 2 are fixed through bolts and nuts, then wire passing screw 5 and rolling rod 6 are installed in sequence, and then two ends of the wire passing screw are fixed through nuts.

When the cable is laid horizontally, the cable is placed on the rolling rod 6, the front end is pulled by manpower, the rear end converts original sliding friction into rolling friction to assist the manpower to pull by the rolling rod 6, after the whole cable is laid in place, the cable is horizontally moved from the rolling rod 6 to the cross arm of the ladder bridge 1, and then the next loop of cable laying is carried out.

After the cable of the bridge is laid, the fixing bolts of the base are detached, and then the auxiliary device can be taken out from the lower part of the ladder bridge.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims

1. A simple auxiliary device for horizontal laying of ladder bridge cable is characterized in that the simple auxiliary device comprises a first base and a second base which are arranged on a horizontal section support of a ladder bridge at intervals, a harness cord screw is fixed between the first base and the second base, a rolling bar is sleeved on the harness cord screw, the tops of the first base and the second base are higher than the top of the rolling bar, and the rear end of the cable is placed on the rolling bar when the cable is laid horizontally.

2. The simple auxiliary device for horizontal laying of ladder bridge cables according to claim 1, wherein said rollers are DN15 galvanized steel pipes.

3. The easy auxiliary device for horizontal laying of ladder bridge cables according to claim 1, wherein said first and second bases are each channel steel.

4. The easy auxiliary device for horizontal laying of cables for a ladder bridge according to claim 1, wherein the length of said rollers is not more than 1/2 of the width of the ladder bridge.