River-crossing cable erecting structure

Abstract

The utility model discloses a cable river-crossing erecting structure which is composed of supporting and fixing mechanisms arranged on the two sides of a river channel and steel wire ropes erected on the supporting and fixing mechanisms and the ground. The supporting and fixing mechanism comprises a fixing support and a steel rope crossing device. Two sets of fixed brackets are respectively fixed on two banks of a river channel; the steel rope crossing device comprises a top supporting mechanism arranged at the top end of the fixing support and ground anchoring mechanisms fixedly connected to the two banks of the river channel. Two ends of the steel wire rope are in tensioning connection with a ground anchoring mechanism fixedly connected to the ground; the cable is hung across the river channel along the river-crossing steel wire rope through the hook. The electric pole top fixing device is simple in structure and convenient to manufacture, abrasion of the steel wire rope can be reduced, the service life can be prolonged, and sag and height of long-distance crossing of the cable can be effectively controlled; the construction period can be effectively shortened, the construction quality is improved, the construction cost and the purchase cost are reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power cable construction equipment design, relates to the technical field of cable crossing river erection device design, and specifically is a cable long-distance crossing river erection structure. Background Art

[0002] Cable laying across rivers is one of the more common tasks in cable construction. During the cable laying process, it is necessary to select and design the corresponding construction facilities and their laying structures according to the width of the river, the cable laying sag and the geological conditions of the laying point. At present, the more common cross-river laying is steel pipe pole laying, which often has the following disadvantages: it is necessary to pile according to the foundation, and the riverside pile foundation construction is difficult, time-consuming and labor-intensive; the steel pipe pole is large in size and the transportation conditions are limited; the steel pipe pole is assembled and hoisted on site, and large lifting equipment is often not available for hoisting in remote mountainous areas. Summary of the invention

[0003] The utility model discloses a cable crossing river erection structure based on the shortcomings of the prior art. The utility model aims to provide a cable crossing river support structure which is applied to the cable crossing river support, has reasonable and stable force, and is easy to manufacture.

[0004] The utility model is realized by the following technical solutions:

[0005] A cable crossing river erection structure, characterized in that it is composed of a supporting and fixing mechanism arranged on both sides of the river and a steel wire rope erected between the supporting and fixing structure and the ground;

[0006] The supporting and fixing mechanism includes a fixing bracket and a steel rope crossing device; two sets of fixing brackets are fixed on both sides of the river channel respectively; the steel rope crossing device includes a top supporting mechanism arranged on the top of the fixing bracket and a ground anchoring mechanism fixed on both sides of the river channel;

[0007] Both ends of the steel wire rope are tensioned and connected with the ground anchoring mechanism fixed to the ground, and the middle part of the steel wire rope crosses the top supporting mechanism and is suspended in the air through the river channel; the cable is suspended along the river-crossing steel wire rope through a hook and crosses the river channel.

[0008] Furthermore, each set of fixed brackets is composed of two groups of brackets and oblique fixed steel ropes; the two groups of brackets are fixed to the ground in parallel, and a steel rope crossing device is arranged horizontally on the top; an oblique steel rope connecting the fixed ground and the top of the bracket is arranged on the rear side of each group of brackets facing the river surface.

[0009] Furthermore, each group of brackets includes a main pole vertically fixed to the river bank, and a diagonal brace is arranged on the main pole facing the water surface and is obliquely fixed to the river bank; the top of the diagonal brace is connected and fixed to the upper part of the main pole by a connecting hoop, and at least two groups of mutually connected and fixed reinforcing beams are also arranged between the main pole and the diagonal brace.

[0010] Furthermore, the top support mechanism is composed of arc plates, baffles, horizontal cross arms, rectangular steel pipes, and channel steel components assembled and welded; wherein: the steel wire rope is placed on the arc plate of the top support mechanism, forming surface contact with the steel wire rope to avoid damage to the steel wire rope and protect the steel wire rope; the baffles are arranged on both sides of the arc plate, and the baffles are mainly used to prevent the steel wire rope from moving out of the arc plate during installation to prevent "jumping slots"; the horizontal cross arms, rectangular steel pipes and channel steels are the main load-bearing components of the top support mechanism; the top support mechanism is fixed to the top of the fixed bracket by stud bolts.

[0011] The ground anchoring mechanism is further composed of a pulling I-beam, a reinforcing I-beam and an I-beam base; the I-beam base is a rectangular base formed by welding multiple I-beams, a connecting beam is arranged in the middle of the rectangular base, a pulling I-beam arranged obliquely is welded and fixed on the connecting beam, at least two reinforcing I-beams with diagonal bracing structures are welded on both sides of the pulling I-beam, and holes are opened at the ends of the pulling I-beam for connecting steel wire ropes; the ground anchoring mechanism is fixed under the ground on both sides of the river channel, and holes are opened at the ends of the pulling I-beam to expose the ground.

[0012] Furthermore, steel reinforcing plates with openings are welded on the surfaces of both sides of the openings at the ends of the pulling I-beams.

[0013] The utility model is beneficial: the utility model has a simple structure and is easy to manufacture; the utility model can reduce the wear of the wire rope and extend the service life of the pole top fixing device; the utility model can effectively control the sag and height of the cable over a long distance; the utility model can effectively shorten the construction period and improve the construction quality. The utility model is safe and reliable, and provides a reference for similar projects. Most of the structure of the utility model is the material required for cable laying. Only I-beams and channel steels need to be purchased, and there is no need to purchase other types of poles such as steel pipe poles, which reduces construction costs and procurement costs and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the cable installation across the river of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the fixed bracket of the utility model;

[0016] Figure 3 This is a schematic diagram of the layout of the steel rope crossing device of the utility model;

[0017] Figure 4 This is a schematic diagram of the side layout of the steel rope crossing device of the utility model;

[0018] Figure 5 This is a schematic diagram of the top support mechanism of the utility model;

[0019] Figure 6 It is a side schematic diagram of the top support mechanism of the utility model;

[0020] Figure 7 This is a top view schematic diagram of the top support mechanism of the present utility model;

[0021] Figure 8 This is a schematic diagram of the ground anchoring mechanism of the present utility model;

[0022] Figure 9 This is a side view schematic diagram of the ground anchoring mechanism of the present utility model;

[0023] Figure 10 This is a top view schematic diagram of the ground anchoring mechanism of the present utility model.

[0024] Reference numerals:

[0025] 001 Cable; 002 Steel wire rope; 003 Oblique tension fixing steel wire rope;

[0026] 100 Fixed bracket; 200 Steel wire rope crossing device; 300 Ground;

[0027] 101 Connecting hoop; 102 Reinforcing cross beam; 103 Diagonal brace; 104 Main pole;

[0028] 20 Top support mechanism; 21 Ground anchoring mechanism; 201 Arc-shaped plate; 202 Baffle; 203 Horizontal cross arm; 204 Stud bolt; 205 Rectangular steel pipe; 206 Channel steel; 207 I-beam; 208 Reinforcing I-beam; 209 I-beam base; 210 Reinforcing plate, 211 Steel wire rope fixing hole. Detailed implementation manners

[0029] The present utility model will be further described below in conjunction with the detailed implementation manners. The detailed implementation manners are a further explanation of the principle of the present utility model and do not limit the present utility model in any way. The technologies identical or similar to the present utility model do not exceed the protection scope of the present utility model.

[0030] In conjunction with the attached drawings.

[0031] As shown in the figure, the present utility model discloses a cable river-crossing erection structure. The erection structure is used for the river-crossing erection of cable 001, and the steel wire rope 002 is installed on the cable long-distance crossing device 200 and connected and fixed to the cable 001. The connection and fixation of the cable 001 and the steel wire rope 002 can reduce the sag of the cable 001 caused by its own weight through the steel wire rope 002, and can reduce the swing of the cable 001 caused by weather such as strong wind.

[0032] The cable 001 river-crossing support is installed after the geological survey and site selection on both sides of the river bank. The support includes two vertical erection concrete main poles 104, and two diagonal braces 103 are connected to the main pole 104 by using the connecting hoop 101, and the structure is reinforced by using the reinforcing cross beam 102 between the main pole 104 and the diagonal brace 103.

[0033] The long-distance cable spanning device 200 includes a top support mechanism 20 and a ground anchoring mechanism 21; the top support mechanism 20 is composed of an arc plate 201, a baffle 202, a horizontal cross beam 203, a double-headed bolt 204, a rectangular steel pipe 205, and a channel steel 206; the ground anchoring mechanism 21 is composed of an I-beam 207, a reinforced I-beam 208, an I-beam base 209, and a reinforcing plate 210; a steel wire rope fixing hole 211 is arranged on the reinforcing plate 210 at the end of the I-beam 207.

[0034] The top support mechanism 20 connects the arc plate 201 and the baffle 202 by welding, and then fully welds and connects the arc plate 201, four horizontal cross beams 203, four rectangular steel pipes 205, and two channel steels 206 to form a shape.

[0035] The ground anchoring mechanism 21 connects and forms an I-beam base 209 composed of one I-beam 207, two reinforced I-beams 208, and seven I-beams by welding. At the same time, holes are opened in the upper part of the I-beam 207 to ensure that the steel wire rope can pass through and be fixed. The reinforcing plate 210 is opened with holes and welded at the hole opening of the I-beam 207 for reinforcement.

[0036] After the two parts of the long-distance cable spanning device 200 are manufactured, the ground anchoring mechanism 21 is pre-buried and poured into the concrete to ensure that the steel wire rope fixing hole 211 at the top of the I-beam 207 is exposed above the ground by at least 300 mm.

[0037] The top support mechanism 20 is fixed to the tops of two main rods 104 by four double-headed bolts 204. The end of the steel wire rope 002 is fixed in the steel wire rope fixing hole 211 at the top of the I-beam 207 of the ground anchoring mechanism 21, and a steel wire rope protection ring is used to protect the rope end to prevent the steel wire rope from being worn by the hole edge. Then, the steel wire rope 002 is installed on the top support mechanism 20 to ensure that the steel wire rope 002 is located between the two side baffles 202 when passing through the arc plate 201. The steel wire rope 002 is installed on the top support mechanism 20 of the next main rod 104 on the opposite side of the river bank, and the rope end is fixed in the steel wire rope fixing hole 211 of the ground anchoring mechanism 21.

[0038] When using the cable river-crossing erection structure of the present utility model for cable erection construction, it includes the following steps:

[0039] Step 1. Select the erection location of the fixed support 100 according to the geological conditions on both sides of the river, and install the fixed support 100 at this location;

[0040] Step 2. Install the steel wire rope spanning device 200 on the fixed support 100, and the installation height of the steel wire rope spanning device 200 can be adjusted according to the cable installation height;

[0041] Step 3. Install the steel wire rope 002 on the steel wire rope crossing device 200 for fixing with the cable 001 to control the sag range caused by the self-weight of the cable 001;

[0042] Step 4. Install the river-crossing cable 001 through equipment such as a tractor and connect and fix it to the steel wire rope 002 of the steel wire rope crossing device 200.

Claims

1. A cable crossing river installation structure, characterized in that: It consists of a supporting and fixing mechanism set on both sides of the river channel and a steel wire rope erected between the supporting and fixing structure and the ground; The supporting and fixing mechanism includes a fixing bracket and a steel rope crossing device; two sets of fixing brackets are fixed on both sides of the river channel respectively; the steel rope crossing device includes a top supporting mechanism arranged on the top of the fixing bracket and a ground anchoring mechanism fixed on both sides of the river channel; Both ends of the steel wire rope are tensioned and connected with the ground anchoring mechanism fixed to the ground, and the middle part of the steel wire rope crosses the top supporting mechanism and is suspended in the air through the river channel; the cable is suspended along the river-crossing steel wire rope through a hook and crosses the river channel.

2. The cable crossing river installation structure according to claim 1 is characterized in that: Each set of the fixed brackets consists of two groups of brackets and oblique fixed steel ropes; the two groups of brackets are fixed on the ground in parallel, and a steel rope crossing device is horizontally connected on the top; an oblique steel rope connecting the fixed ground and the top of the bracket is set on the rear side of each group of brackets facing the river surface.

3. The cable crossing river installation structure according to claim 2 is characterized in that: Each set of brackets includes a main pole vertically fixed to the river bank, and a diagonal brace is arranged on the main pole facing the water surface and obliquely fixed to the river bank; the top of the diagonal brace is connected and fixed to the upper part of the main pole by a connecting hoop, and at least two sets of mutually connected and fixed reinforcing beams are also arranged between the main pole and the diagonal brace.

4. The cable crossing river installation structure according to claim 2 is characterized in that: The top support mechanism is composed of arc plates, baffles, horizontal cross arms, rectangular steel pipes, and channel steel components assembled and welded; wherein: the steel wire rope is placed on the arc plate of the top support mechanism, forming surface contact with the steel wire rope to avoid damage to the steel wire rope and protect the steel wire rope; the baffles are arranged on both sides of the arc plate to prevent the steel wire rope from moving out of the arc plate during installation; the horizontal cross arms, rectangular steel pipes and channel steels are load-bearing components; the top support mechanism is fixed to the top of the fixed bracket by stud bolts.

5. The cable crossing river installation structure according to claim 2 is characterized in that: The ground anchoring mechanism is composed of a pulling I-beam, a reinforcing I-beam and an I-beam base; the I-beam base is a rectangular base formed by welding multiple I-beams, a connecting beam is arranged in the middle of the rectangular base, a pulling I-beam with an inclined setting is welded and fixed on the connecting beam, at least two reinforcing I-beams with a diagonal bracing structure are welded on both sides of the pulling I-beam, and holes are opened at the ends of the pulling I-beam for connecting steel wire ropes; the ground anchoring mechanism is fixed under the ground on both sides of the river channel, and the holes at the ends of the pulling I-beam are exposed to the ground.

6. The cable crossing river installation structure according to claim 5, characterized in that: Steel reinforcing plates with openings are welded on the surfaces of both sides of the openings at the ends of the pulling I-beams.

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