CN203039298U

CN203039298U - A safety protective net used for replacing an overhead ground wire under a special spanning condition

Info

Publication number: CN203039298U
Application number: CN 201320071219
Authority: CN
Inventors: 钟锋; 杨兆斌
Original assignee: GUANGZHOU NANFANG ELECTRIC CONSTRUCTION GROUP CO Ltd
Current assignee: GUANGZHOU NANFANG ELECTRIC CONSTRUCTION GROUP CO Ltd
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2013-07-03
Anticipated expiration: 2023-02-07

Abstract

The utility model discloses a safety protective net used for replacing an overhead ground wire under a special spanning condition. The safety protective net comprises a two steel wire rope sleeves and a plurality of nylon ropes. The two steel wire rope sleeves are symmetrically disposed on two opposite wires under an overhead ground wire required to be replaced and are tightly tied with the wires. A plurality of weaving points are disposed on the wires between the two steel wire rope sleeves at same intervals. The weaving points on the two opposite wires are connected by the plurality of nylon ropes which are connected in an end-to-end manner and thus a weaving net is formed. One ends of the nylon ropes on the two ends of the weaving net are fixed on the steel wire rope sleeves. Such safety protective net improves construction technology in which a canopy frame is required to be constructed under a conventional spanning condition. Therefore, not only are the influences of constructing the canopy frame on traffic, production, and resident lives at near area prevented, but also construction cost are reduced while economic benefit is increased.

Description

A kind of safety guard net of under special crossing condition, changing the overhead ground wire use

Technical field

The utility model relates to a kind of safety guard net that overhead ground wire uses of changing under special crossing condition.

Background technology

All the time, in the replacing overhead ground wire construction work that needs under the specific conditions such as crossing live-line, highway, railway, bridge, river, farmland, all being faced with the problem that will build crossing frame, road closure, is the normal life that can influence traffic, industrial and agricultural production and the resident of near zone and build crossing frame one; The 2nd, it is very complicated to handle the relevant construction formality that need build crossing frame and road closure, and the policy intractability is big; The 3rd, the cost of building crossing frame is bigger, causes peripheral facility to destroy easily, and influences fail safe and the useful life of crossing frame.

In order to reduce the negative effect that in whole power construction process, brings, under the prerequisite that guarantees construction safety, need to optimize the construction plan of power engineering, accelerating construction progress reduces construction cost, increases economic benefit.

The utility model content

The utility model purpose is to provide a kind of safety guard net that overhead ground wire uses of changing under special crossing condition, be woven with the safety guard net of certain toughness at two lower wires of overhead transmission line, prevent the overhead ground wire ground of in pulling process, falling, jeopardize vehicle, pedestrian and ground installation etc., remove from simultaneously and build crossing frame, reduce the influence to peripheral resident living.

The utility model is that the technical scheme that the technical solution problem adopts is:

A kind of safety guard net of under special crossing condition, changing the overhead ground wire use, comprise two steel wire loops and some nylon ropes, two steel wire loops are erected on the lead of two offsides of the overhead ground wire below that will change symmetrically and fasten lead, lead between two steel wire loops is provided with the braiding node that some intervals equate, some nylon ropes connect the braiding node on the two offside leads end to end back and forth, form mesh grid, the nylon rope at mesh grid two has an end to be fixed on the steel wire loop.

Further, each road nylon rope all is fixed on the lead of two offsides independently in the mesh grid.

Further, the length of described mesh grid is not less than 30 meters, and the distance between the adjacent braiding node on the lead of the same side is 0.4 meter.

Further, have at least one diameter to be not less than 9.525 millimeters in described two steel wire loops.

Further, the diameter of described nylon rope is not less than 12.7 millimeters.

Further, add in the middle of the described nylon rope and be installed with insulated tube.

The beneficial effects of the utility model are: the utility model provides a kind of safety guard net that overhead ground wire uses of changing under special crossing condition, weave the net with certain toughness by the lead below the overhead ground wire that will change, prevent the overhead ground wire ground of in pulling process, falling, jeopardize vehicle, pedestrian and ground installation etc.This safety guard net has improved the construction technology that originally need set up frame under special crossing condition, has both removed from and has set up frame to the influence of near zone traffic, production, resident living, can reduce construction cost again, increases economic benefit.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing and example.

Fig. 1 is structural representation of the present utility model.

Embodiment

With reference to Fig. 1, a kind of safety guard net that overhead ground wire uses of under special crossing condition, changing of the present utility model, comprise two steel wire loops 1 and some nylon ropes 2, two steel wire loops 1 are erected on the lead 4 of two offsides of overhead ground wire 3 belows that will change symmetrically and fasten lead 4, lead 4 between two steel wire loops 1 is provided with the braiding node 5 that some intervals equate, some nylon ropes 2 connect the braiding node 5 on the two offside leads 4 end to end back and forth, form mesh grid 6, the nylon rope 2 at mesh grid 6 two has an end to be fixed on the steel wire loop 1.This safety guard net is located on the lead 4 of overhead ground wire 3 belows of need changing, and it has certain toughness, can prevent overhead ground wire 3 ground of falling in pulling process.The both sides of safety guard net are provided with steel wire loop 1, and the effect of this steel wire loop 1 is the nylon rope 2 at fixedly mesh grid 6 two, prevent mesh grid 6 displacements.

Get loose for the fracture that prevents a nylon rope 2 causes whole mesh grid 6, each road nylon rope 2 all is fixed on the lead 4 of two offsides independently in the described mesh grid 6.

The length of described mesh grid 6 is not less than 30 meters, and the distance between the adjacent braiding node 5 on the same side lead 4 is 0.4 meter, and this length and density make safety guard net can prevent the overhead ground wire ground of falling effectively.

In order to guarantee that mesh grid 6 has enough pulling force ability to bears, at least one is 3 fens ropes in two steel wire loops 1, i.e. the diameter of steel cable cover otherwise less than 9.525 millimeters wherein; Described nylon rope 2 will be 4 fens ropes at least, and its diameter is not less than 12.7 millimeters.

Preferably, in the middle of described nylon rope 2, add and be installed with insulated tube, so that nylon rope 2 is firm wear-resisting.

The above is preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.

Claims

1. under special crossing condition, change the safety guard net that overhead ground wire uses for one kind, it is characterized in that: comprise two steel wire loops (1) and some nylon ropes (2), two steel wire loops (1) are erected at the lead (4) of two offsides of overhead ground wire (3) below that will change symmetrically and go up and fasten lead (4), lead (4) between two steel wire loops (1) is provided with the braiding node (5) that some intervals equate, some nylon ropes (2) connect the braiding node (5) on the two offside leads (4) end to end back and forth, form mesh grid (6), the nylon rope (2) at mesh grid (6) two has an end to be fixed on the steel wire loop (1).

2. a kind of safety guard net that overhead ground wire uses of changing under special crossing condition according to claim 1, it is characterized in that: mesh grid (6) is gone up each road nylon rope (2) and all is fixed on independently on the lead (4) of two offsides.

3. a kind of safety guard net that overhead ground wire uses of under special crossing condition, changing according to claim 1, it is characterized in that: the length of described mesh grid (6) is not less than 30 meters, and the distance between the adjacent braiding node (5) on the same side lead (4) is 0.4 meter.

4. a kind of safety guard net that overhead ground wire uses of changing under special crossing condition according to claim 1 is characterized in that: have at least one diameter to be not less than 9.525 millimeters in described two steel wire loops (1).

5. a kind of safety guard net that overhead ground wire uses of changing under special crossing condition according to claim 1, it is characterized in that: the diameter of described nylon rope (2) is not less than 12.7 millimeters.

6. a kind of safety guard net that overhead ground wire uses of changing under special crossing condition according to claim 1 is characterized in that: add in the middle of the described nylon rope (2) and be installed with insulated tube.