CN204385620U - For the insulation protecting device of overcrossing railway Construction of continuous beam - Google Patents
For the insulation protecting device of overcrossing railway Construction of continuous beam Download PDFInfo
- Publication number
- CN204385620U CN204385620U CN201420739441.9U CN201420739441U CN204385620U CN 204385620 U CN204385620 U CN 204385620U CN 201420739441 U CN201420739441 U CN 201420739441U CN 204385620 U CN204385620 U CN 204385620U
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- base plate
- continuous beam
- protecting device
- railway construction
- crossbeam
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Abstract
The utility model relates to a kind of insulation protecting device for overcrossing railway Construction of continuous beam, comprises base plate, and base plate surrounding is vertically provided with side plate, and base plate and side plate are formed in one body; Backplate surface is longitudinally provided with several parallel longerons, longeron is vertically provided with two crossbeams in the horizontal direction, each crossbeam is connected with for connection suspension crossbeam, at least two poles vertically in the key, and base plate and surface of side plate are equipped with alkali-free glass wool cloth and solid insulation resin bed; This device comprises voltage online monitoring alarm device.This insulation protecting device base plate is provided with longeron and crossbeam, form a relative plate electrode, the electric field that can accept uniformly from contact net impacts, protector is made to have enough strong arc protection breakdown capability, within safe distance between Hanging Basket and contact net can taper to 0.5m from 2m, considerably increase the operation headroom of Hanging Basket and constructor, both wired operation security and the smooth construction of continuous beam can be guaranteed.
Description
Technical field
The utility model relates to bridge construction engineering field, particularly a kind of insulation protecting device for overcrossing railway Construction of continuous beam.
Background technology
In recent years, the bridge of overcrossing railway construction has the trend obviously risen, in the area that landform is more smooth, meeting design specifications to make circuit longitudinal gradient to require and investment reduction, at the bottom of the continuous beam suspended bracket of overcrossing railway, often can not meet with the distance of electrification railway contact net the safe distance specifying 2m in " Existing Railway Line is constructed and safety management way ".According to pertinent regulations, to seal completely bottom construction equipment, prevent high-altitude junk, affect traffic safety, bottom construction equipment, must 500mm be greater than with electrical body headroom.
But actual conditions are but that the existing linear distance of Hanging Basket distance railway is closer, and electric current is easy to the air breakdown between contact net and Hanging Basket, Hanging Basket steel work has again many wedge angles and iron and steel burr.Even if distant, also may produce electric point discharge, the charged and power line short-circuit of Hanging Basket will certainly be caused like this.In addition, around contact net, there is very strong electromagnetic field, induced voltage may be produced on Hanging Basket, when this voltage exceedes safe voltage (50V), with regard to the life security of entail dangers to constructor.When overcrossing railway normal operation, also easily threaten the safety of driving, specifically: during the work such as concrete construction and mud jacking, contact net and current train may be polluted; Reinforcing bar, instrument etc. accidentally fall cause contact net power-off or threaten traffic safety; When concrete curing and natural precipitation, current may flow on contact net and return wire, cause Hanging Basket charged.Therefore, sum up, namely in the middle of construction, need anti-electric, waterproof, Junk prevention.
In order to ensure the smooth construction of both wired operation security and continuous beam, safeguard procedures safely and reliably must be taked, prior art is generally adopt to set up protection canopy, specifically beam in length and breadth at the bottom of Hanging Basket, template, job platform is built, protection canopy need adopt Bailey beam, the lumps of wood, the materials such as protected apron, and the safe distance of touching net generally is greater than 2m, but actual situation about running into is usually because continuous beam is larger across footpath, as being greater than 20m, the residue clearance of Hanging Basket and contact net is caused to be less than 2m, therefore the condition setting up protection canopy can not be met, need to adopt other ways to solve.
Utility model content
Goal of the invention of the present utility model is: for prior art exist for overcrossing railway Construction of continuous beam, adopt cradle bottom build protection canopy can not solve bottom construction equipment with net-fault clearance and cause the problem of construction safety hidden danger, a kind of insulation protecting device for overcrossing railway Construction of continuous beam is provided.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of insulation protecting device for overcrossing railway Construction of continuous beam, comprise base plate, described base plate surrounding is vertically provided with side plate, described backplate surface is longitudinally provided with several parallel longerons, described longeron is vertically provided with two crossbeams in the horizontal direction, each crossbeam is connected with for connection suspension crossbeam, at least two poles vertically in the key, and described base plate and surface of side plate are all coated with solid insulation resin bed.
Base plate surrounding is provided with side plate, its sectional area becomes U-shaped, base plate is provided with longeron and crossbeam, a relative plate electrode is then formed between crossbeam with base plate, the electric field that can accept uniformly from both wired (contact net) impacts, the solid insulation resin bed arranged with side plate lateral surface bottom base plate, adopt certain proportion curing compound, reactive diluent, white carbon, auxiliary agent, the solid insulation resin that defoamer is made, this protector is made to have enough strong arc protection breakdown capability, within safe distance between base plate and contact net can taper to 0.5m from 2m, Hanging Basket can be built on pole easily, considerably increase the operation headroom of Hanging Basket and constructor, both wired operation security and the smooth construction of continuous beam can be guaranteed, wide adaptability.
Preferably, described base plate, be also provided with alkali-free glass wool cloth between surface of side plate and described solid insulation resin bed, this alkali-free glass wool cloth can place the corrosion of base plate, adds insulating capacity.
Preferably, described base plate and side plate are formed in one body.
Preferably, the steel plate of described base plate to be thickness be 3-4mm, is convenient to process base plate, ensures insulated platform intensity simultaneously.
Preferably, described side plate height is 800-1000mm.
Preferably, described crossbeam, longeron are channel-section steel.
Preferably, the pole described crossbeam connected is five screw-thread steels.
Preferably, also comprise voltage online monitoring alarm device, described voltage online monitoring alarm device comprises two voltage tester lines and circuit detector, wherein a p-wire connects described steel plate, another root p-wire connecting circuit detector, described circuit detector connects audible-visual annunciator, whether exceedes safe voltage or breakdown phenomenon, ensure the safety of this insulation protecting device further with monitoring protection platform at any time.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: the base plate of the insulation protecting device for overcrossing railway Construction of continuous beam described in the utility model is provided with longeron and crossbeam, be coated with solid insulation resin bed outward, make then to be formed between crossbeam with base plate a relative plate electrode, the electric field that can accept uniformly from both wired (contact net) impacts, this protector is made to have enough strong arc protection breakdown capability, effectively the Hanging Basket on overcrossing railway continuous beam and Existing Railway Line are realized isolating, both wired operation security can be guaranteed, the construction safety of constructor, within also making the safe distance between Hanging Basket and contact net can taper to 0.5m from 2m, considerably increase the operation headroom of Hanging Basket and constructor, both wired operation security and the smooth construction of continuous beam can be guaranteed, compare employing to set up protection canopy to carry out and insulate, its simple to operate, wide adaptability.
Accompanying drawing explanation
Fig. 1 be insulation protecting device described in the utility model along vertical bridge to structural representation;
Fig. 2 is the structural representation of insulation protecting device described in the utility model along direction across bridge.
Mark in figure:
1, base plate, 2, side plate, 3, longeron, 4, crossbeam, 5, pole, 6, solid insulation resin bed, 7, Hanging Basket lower transverse beam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, 2, a kind of insulation protecting device for overcrossing railway Construction of continuous beam, comprises base plate 1, and base plate 1 surrounding is vertically provided with side plate 2, and base plate 1 is the steel plate of thickness 3mm, and side plate 2 is highly 800mm, and base plate 1 and side plate 2 are formed in one body; Base plate 1 surface is longitudinally welded with several parallel longerons 3, longeron 3 is vertically welded with in the horizontal direction two crossbeams 4, each crossbeam 4 is welded with five Φ 32 fining twisted steels vertically as pole 5, often arrange fining twisted steel and be used for connection suspension crossbeam 7 in the key, wherein longeron 3 selects 10# channel-section steel, and crossbeam 4 selects 20# channel-section steel, in order to the stable connection of crossbeam 4, above crossbeam 4, be also provided with some 10# channel-section steels as longeron 3, make crossbeam 4 be welded on two rows longeron 3; Solid insulation resin bed 6 is all coated with at base plate 1 and side plate 2 surface.In order to strengthen the anti-corrosion capability of base plate 1, also base plate 1, side plate 2 surface and described solid insulation resin bed 6 between be also provided with alkali-free glass wool cloth.
When adopting the base plate 1 of 3mm steel plate and longeron 3, the welding of crossbeam 4, must not steel plate burn-through; After Plate Welding is shaping, if wedge angle can not be had on the surface of steel plate, burr has, should be smooth, round and smooth with grinder buffing; Because steel plate will carry larger weight, solder joint requires can not rosin joint.
Solid insulation resin bed 6 is the solid insulation resins adopting certain proportion curing compound, reactive diluent, white carbon, auxiliary agent, defoamer to make, time bottom steel plate with side plate 2 outside coating insulating resin, ambient temperature must reach 20 DEG C, can meet the condition of insulating resin solidification.Consider the factor of expanding with heat and contract with cold, with insulating screw and insulator cap by insulating layer together with steel plate rivet clasp, guarantee that insulating layer and steel work bond firmly.
In addition, also consider the factor such as natural precipitation, curing water in work progress, waterproofing work must be done to protective platform, also need to accomplish: by the whole full weld of steel plate laying solid insulation resin bed 6; All weld seams on protective platform smear marine glue; When the U-type groove that base plate 1, side plate 2 are formed has ponding, water pump is used to carry out pump drainage in time.
In order to ensure the outlet electric leakage of this insulation protecting device or breakdown potential risk further, this insulation protecting device also comprises voltage online monitoring alarm device, this voltage online monitoring alarm device comprises two voltage tester lines and circuit detector, a wherein p-wire junction steel plate, another root p-wire connecting circuit detector, circuit detector also connects audible-visual annunciator.
Wherein above-mentioned leakage current be construction equipment outside under action of high voltage through electric current that insulated part leaks.Because applied voltage is higher, and voltage stabilization, so leakage current experiment finds insulation hard defects, the internal flaws such as embrittlement than being easier to.Detect and whether have punch-through, whether leakage current is more than 500uA; If without puncturing, it is qualified to be considered as within 500uA.
This voltage online monitoring alarm device detection method hangs on below protective platform by a metallic conductor two insulating cords, distance is between 100mm-500mm, with the steel work of protective platform as earth terminal, adopt into ZGF-60KV/2mA high voltage direct current generator metallic conductor pressurization 1 ~ 5min, voltage reaches, and need to arrive 30KV(contact net rated voltage be 25KV, ceiling voltage can reach 27.5KV), then with such as SWB-IV high pressure digital display microampere meter detection of leaks electric current whether more than 500uA.If Leakage Current is far below 500uA after testing, then without punch-through, meet code requirement.
The base plate 1 of this insulation protecting device is provided with longeron 3 and crossbeam 4, a relative plate electrode is then formed between crossbeam 4 with base plate 1, the electric field that can accept uniformly from both wired (contact net) impacts, protector is made to have enough strong arc protection breakdown capability, within safe distance between Hanging Basket and contact net can taper to 0.5m from 2m, considerably increase the operation headroom of Hanging Basket and constructor, both wired operation security and the smooth construction of continuous beam can be guaranteed, wide adaptability.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. the insulation protecting device for overcrossing railway Construction of continuous beam, it is characterized in that, comprise base plate (1), described base plate (1) surrounding is vertically provided with side plate (2), described base plate (1) surface is longitudinally provided with several parallel longerons (3), described longeron (3) is vertically provided with in the horizontal direction two crossbeams (4), each crossbeam (4) is connected with for connection suspension crossbeam (7) in the key, at least two poles (5) vertically, described base plate (1) and side plate (2) surface are all coated with solid insulation resin bed (6).
2. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 1, it is characterized in that, between described base plate (1), side plate (2) surface and described solid insulation resin bed (6), be also provided with alkali-free glass wool cloth.
3. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 1, is characterized in that, described base plate (1) and side plate (2) are formed in one body.
4. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 3, is characterized in that, the steel plate of described base plate (1) to be thickness be 3-4mm.
5. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 3, is characterized in that, described side plate (2) is highly 800-1000mm.
6. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 1, is characterized in that, described crossbeam (4), longeron (3) are channel-section steel.
7. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 1, is characterized in that, the upper pole (5) connected of described crossbeam (4) is five screw-thread steels.
8. the insulation protecting device for overcrossing railway Construction of continuous beam according to claim 4, it is characterized in that, also comprise voltage online monitoring alarm device, described voltage online monitoring alarm device comprises two voltage tester lines and circuit detector, wherein a p-wire connects described steel plate, another root p-wire connecting circuit detector, described circuit detector connects audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739441.9U CN204385620U (en) | 2014-11-28 | 2014-11-28 | For the insulation protecting device of overcrossing railway Construction of continuous beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739441.9U CN204385620U (en) | 2014-11-28 | 2014-11-28 | For the insulation protecting device of overcrossing railway Construction of continuous beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204385620U true CN204385620U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420739441.9U Expired - Fee Related CN204385620U (en) | 2014-11-28 | 2014-11-28 | For the insulation protecting device of overcrossing railway Construction of continuous beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN204385620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447677A (en) * | 2017-09-21 | 2017-12-08 | 陈培荣 | The anti-electric hanging groove group of fast installing Hanging Basket |
-
2014
- 2014-11-28 CN CN201420739441.9U patent/CN204385620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447677A (en) * | 2017-09-21 | 2017-12-08 | 陈培荣 | The anti-electric hanging groove group of fast installing Hanging Basket |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20211128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |