CN101895083B - Novel cover plate for cable trench - Google Patents
Novel cover plate for cable trench Download PDFInfo
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- CN101895083B CN101895083B CN2010101933830A CN201010193383A CN101895083B CN 101895083 B CN101895083 B CN 101895083B CN 2010101933830 A CN2010101933830 A CN 2010101933830A CN 201010193383 A CN201010193383 A CN 201010193383A CN 101895083 B CN101895083 B CN 101895083B
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Abstract
The invention relates to a novel cover plate for a cable trench. The novel cover plate comprises a cover plate body; the front end of the cover plate body has a convex arc shape, while the rear end has a concave arc shape; a hasp which has a convex arc shape is arranged in the middle of the front end; a rear hasp beam which has a concave arc shape is arranged at the rear end; a rear gap which has a concave arc shape is formed between the rear hasp beam and the cover plate body; and the hasp is matched with the rear hasp beam, and the length of the rear hasp beam is greater than that of the hasp. A side hasp beam which has a concave arc shape is arranged in the middle of two sides of the cover plate body; a side gap which has a concave arc shape is formed between the side hasp beam and the cover plate body; and the length of the side hasp beam is equal to or greater than that of the hasp. Compared with the prior art, the cover plate has the advantages that: the cable cover plates can be randomly connected with each other horizontally or longitudinally; the cover plates are integrated into a whole after completely paved, so the entire compressive strength of the cover plates is improved and the damage of external force to the cable is reduced; and moreover, the pavement requirements on future increase of cable branches and the turning direction of the cable trench can be met.
Description
Technical field
The present invention relates to a kind of cover plate, especially a kind of novel cover plate for cable trench.
Background technology
Burying underground of cable all is to dig out the ditch of placing cable on the ground, and in ditch, cable cover plate on the ditch loam cake is again with the safety of native bedding with the assurance cable with cable laying.Present employed cable cover plate is the cement cover board of reinforcing bar or other interior muscle mostly, and with the use that is stitched together separated from one another between the cover plate, the shortcoming of this cable cover plate is: 1, cement cover board preponderance, the inconvenience of moving, construct; 2, separated from one another between each cover plate, dislocation easily is unfavorable for the protection of ditch inner cable in the long-term use; 3, cement cover board is hard and crisp, and is withstand voltage poor, and long-term the use easily ruptured; 4, reinforced concrete cover plate cost height, stolen situation is serious.An application number is 200620027343.8, the Chinese invention patent that name is called the cable cover plate makes certain improvements to existing reinforced concrete cover plate, played certain effect, but its shortcoming is: 1, this invention still uses cement-based material as the cable cover panel material, so the Heavy Weight of cable cover plate, hard and crisp, shortcomings such as withstand voltage difference are not resolved; Though 2, this invention realized connection between the cable cover plate, its structure is unreasonable, can not adapt to the laying of complex-terrain, especially can not the appropriate cable ditch need turn and the requirement of branch.3, the cement-based material cover plate is easily impaired because of colliding with in work progress, and useful life is short.
Summary of the invention
In order to solve deficiency of the prior art, the invention provides stable, easy to use, the long-lived novel cable cover plate of a kind of connection rational in infrastructure, mutual.
For achieving the above object, the technical solution used in the present invention is a kind of novel cable cover plate, comprise cover board body, the front end of described cover board body is a convex, and the rear end is an arcs of recesses, and front center is provided with the Da button of convex, the rear end is provided with the back Da beam of arcs of recesses, be provided with space behind the arcs of recesses between described back Da beam and the cover board body, described Da button matches with back Da beam, and the length of back Da beam is detained length greater than Da.
The middle part of described cover board body both sides is provided with the side Da beam of arcs of recesses, is provided with arcs of recesses side space between described side Da beam and the cover board body, and the length of described side Da beam is equal to or greater than Da button length.
Described cable cover plate also comprises connector, and the both sides of described connector are convex, matches with described side Da beam.
The cross section of Da beam and side Da beam is a circle or circular mostly after described, and the interior week of the cross section of described Da button is that most circles and its radius are identical with the cross section radius of back Da beam and side Da beam.
The cross section of described back Da beam and side Da beam is oval or oval mostly, and the interior week of the cross section of described Da button is that the shape of the cross section of most ellipses and elliptical shape and back Da beam and side Da beam matches.
The cross section of described side Da beam is circular or circular mostly, and the interior week of described connector cross section both sides is that most circles and its radius are identical with the cross section radius of side Da beam.
The cross section of described side Da beam is oval or oval mostly, and the interior week of described connector cross section both sides is that the shape of the cross section of most ellipses and elliptical shape and side Da beam matches.
Described cable cover plate is the macromolecular material cover plate.
Described macromolecular material cover plate is resin cover plate, modification SMC sheet stock cover plate.
The length of described modification SMC sheet stock cover plate is 650-850mm, and wide 280-420mm, thickness are 8-30mm.
Compared with prior art, beneficial effect of the present invention shows as:
1, cable cover plate of the present invention laterally, can be connected to each other arbitrarily between vertically not only makes cover plate lay to finish the back to become as a whole, has increased the entire compression intensity of cover plate, has reduced the destruction of external force to cable; And can satisfy the following laying requirement that increases cable branch and cable trough turning trend.
2, the cable cover plate of macromolecular material, especially high performance modification SMC sheet stock cover plate, have fabulous corrosion-resistant, endurance, ageing-resistant, can under any condition of-50 ℃ to 150 ℃, use; And the good environmental protection of material, its production can not produce any pollution to environment.
3, disposable compacting forms macromolecule cable cover plate of the present invention through HTHP, has guaranteed that the specifications and models of product are unified, and installation is convenient; High performance modification SMC sheet stock, but the highest pressure-bearing 100kN, bending strength 60kN also can be born in the junction.
4, macromolecule cable cover plate appearance looks elegant exquisiteness of the present invention, and can adjust color according to construction requirement.
5, the used macromolecular material production cost of the present invention is low, has both saved steel and has used, and can prevent stolen again.
Description of drawings
Fig. 1 is the structural representation of cover board body of the present invention;
Fig. 2 is the front plan view of cover board body of the present invention;
Fig. 3 is that the AA of Fig. 2 is to profile;
Fig. 4 is that the BB of Fig. 2 is to profile;
Fig. 5 is the cross sectional representation of circular back Da beam;
Fig. 6 is the cross sectional representation of oval back Da beam;
Fig. 7 is the cross sectional representation of another kind of oval back Da beam;
Fig. 8 is the cross sectional representation of circular mostly back Da beam;
Fig. 9 is the cross sectional representation of oval mostly back Da beam;
Figure 10 is the cross sectional representation of another kind of oval mostly back Da beam;
Figure 11 is the cross sectional representation of most circular Da buttons;
Figure 12 is the structural representation of connector of the present invention;
Figure 13 is that the CC of Figure 12 is to profile.
Among the figure: the 1-cover board body, 2-Da button, Da beam behind the 3-, 4-side Da beam, space behind the 5-, 6-side space, the 7-connector, the Da beam cross section center of circle behind the 8-, the 9-Da button cross section center of circle, 10-Da detains cross-sectional diameter.
Embodiment
Below in conjunction with accompanying drawing structure of the present invention is described further, but not as a limitation of the invention.
Referring to Fig. 1, Fig. 2, the cable cover plate comprises cover board body 1, the front end of cover board body 1 is a convex, and the rear end is an arcs of recesses, and front center is provided with the Da button 2 of convex, the rear end is provided with the back Da beam 3 of arcs of recesses, be provided with space 5 behind the arcs of recesses between back Da beam 3 and the cover board body 1, Da button 2 matches with back Da beam 3, and the length of back Da beam 3 is detained 2 length greater than Da.The middle part of cover board body 1 both sides is provided with the side Da beam 4 of arcs of recesses, is provided with arcs of recesses side space 6 between side Da beam 4 and the cover board body 1, and the length of side Da beam 4 is equal to or greater than Da and detains 2 length.The cable cover plate also comprises connector 7, and the both sides of connector 7 are convex, matches with described side Da beam 4.
Referring to Fig. 3,4,5, as one of the preferred embodiments of the present invention, the cross section of back Da beam 3 is a circular cross-section, and the cross section of side Da beam 4 is identical with the cross section of back Da beam 3.Referring to Figure 11, the interior week of Da button 2 is circular mostly, and Da detains the 2 cross section centers of circle 9, and Da button cross-sectional diameter 10 all is included in the cross section, and the radius that Da detains 2 cross sections is identical with the cross section radius of back Da beam 3 and side Da beam 4, thereby makes Da button 2 tight with combining of back Da beam 3 and side Da beam 4.
Referring to Fig. 6,7,8,9,10 as the preferred several embodiment in addition of the present invention, the cross section of back Da beam 3 is circular mostly, oval or oval mostly, the cross section of side Da beam 4 is identical with the cross section of back Da beam 3, the back Da beam 3 cross section centers of circle 8 are included in the cross section, Da detains the interior week of 2 cross sections for circular, oval or oval mostly mostly, and the shape of the cross section of circle or elliptical shape and back Da beam and side Da beam matches.
Referring to Figure 12, Figure 13, connector 7 is used for side direction and connects cover board body, and connector is interlocked by the side Da beam with cover board body, realizes that the side direction between cover board body connects.
Cable cover plate of the present invention can be connected to each other arbitrarily between horizontal, vertical mutually, not only makes cover plate laying finishing back become as a whole, has increased the entire compression intensity of cover plate, has reduced the destruction of external force to cable; And can satisfy the following laying requirement that increases cable branch and cable trough turning trend.
The material of cable cover plate of the present invention is preferably polymer composite, comprises resin material and modification SMC sheet stock, and the SMC material is the abbreviation of Sheet molding compound, i.e. sheet molding compound.The polymer composite that the present invention selects for use has high toughness, and certain elasticity is arranged, can the fine the present invention of satisfying when Da buckles between each cover plate to the elastic demand of material.
One, high performance modification SMC sheet stock, its characteristic and design are as follows:
1, high performance modification SMC sheet stock, the SMC performance sees the following form:
| 1 | Impact strength | kj/m2 | ＞150 |
| 2 | Bending strength | mpa | ＞240 |
| 3 | Hot strength | mpa | ＞120 |
S for cover sheet thickness 0.065m is the facewidth of excavator for pressure Q for bending strength T for area F
2, cover sheet thickness design:
Macromolecule cover plate pressure-bearing is designed to 10 tons (F=100000N)
S＝F÷Q
F＝100000N Q＝2.4×100000000N/m
2
S＝0.00042m
2
T＝S÷0.065m T＝0.065m
Be that thickness both can meet the demands under the situation of 6.5mm.Getting coefficient of safety and be 1.5 is that the thickness of cover plate is 10mm then behind the rounding decimal.
At cover sheet thickness is under the thickness situation of 10mm, 10 tons of pressure requirements can satisfying in the specification fully to be promised to undertake.
3, bond strength design:
Overlap joint area S1 is 0.26 * 0.02=0.0052m
2
Q1＝1.2×100000000N/m
2 F＝Q×S1
F＝624×1000N
Coefficient of safety is 10 satisfied 6 tons pulling force requirements fully
According to the complete machine weight 14000kg of existing excavator, standard bucket capacity 0.56m
3, scraper bowl digging force 95kN, dipper digging force 69kN, maximum 96kN, the wide 715mm that struggles against, the long 190mm of tooth, facewidth 65mm, 4 space width 130mm, the basic design size of profile that science calculates macromolecule cable cover plate is long 750mm, wide 350mm, 8-30mm, but the highest pressure-bearing 100kN, bending strength 60kN also can be born in the junction.The turning radius minimum can reach 700mm, but and turning radius regulated at will.Current macromolecule cable cover plate adopts the connected mode of the uniqueness of my company's independent research, can be laterally between the cover plate, vertically be connected to each other arbitrarily, all cover plates are laid the back that finishes and are become as a whole, increased the compression strength of cover plate, reduced the destruction of external force, satisfied construction status and the following requirement that increases cable bar number cable.
Two, the force analysis of cable cover plate
According to the needs of protection cable, the load-bearing that the design upper cover plate will satisfy several extreme positions requires: when destructive power applies directly over cover plate, can satisfy 10 tons pressure fully by top data computing.
When destructive power when below one side of cover plate applies, the mutual faying surface between the cover plate also can bear the bearing capacity of 60KN, calculates can draw fully according to the bending strength of overlap joint area and material and can satisfy conclusion.
Lap-joint and cover plate are one-shot forming, and consistency of thickness, do not have the local uneven problem of force intensity that is subjected to.Used above design meets the demands fully from loading angle.
Three, processing technology size
According to high performance modification SMC sheet stock performance and production process, the full-size of cover plate can reach long 900mm at present, wide 700mm, and consider the construction aspect, and drawing long 750mm through behind the process optimization, wide 350mm is optimum scheme.And this size also is beneficial to construction and transportation in the construction.
The prescription of well lid material of the present invention comprises 5～25 parts of 0.1～1.0 part of 0.1～0.3 part in 0.1～1.0 part of 0.5～2 part of 35～55 parts of 5～10 parts of 20～25 parts of raw material unsaturated polyester resins, low shrinkage additives, powdered whitings, zinc stearate, activated magnesia, curing agent, carbon black, alkali-free glass fibre rovings, 5～25 parts of the woven glass roving fabric cloth of following weight portion.Described curing agent is the peroxidized t-butyl perbenzoate or the benzoyl peroxide tert-butyl ester.
The preparation method of well lid of the present invention may further comprise the steps:
1), unsaturated polyester resin and low shrinkage additive are added reactor, closes a floodgate and begin to stir mixing speed 600-800 rev/min;
2), in beginning the reactor that stirs, add powdered whiting, add zinc stearate then, add the back and continue to stir 50-80 minute;
3), stop to stir after, raw material in the reactor is installed in the agitator, in agitator, add activated magnesia, curing agent, carbon black is shifted agitator onto under the secondary stirring machine then, stirred 10～15 minutes, mixing speed 500-700 rev/min, make raw material be mixed into resin paste equably, then the resin paste branch is installed to four and go up in the paste bucket;
4), on a sheet molding compound make-up machine, add the alkali-free glass fibre roving, regulate the gap between scraper and the table top, remain between 3～4 millimeters;
5), there are 2 to go up the paste district on every sheet molding compound make-up machine, shifting two resin paste of go up sticking with paste bucket onto sheet molding compound make-up machine two respectively goes up and sticks with paste the district, pour into resin paste equably last the paste on the polyethylene film of distinguishing, start the glass cutter sweep, rotating speed is 500～600 rev/mins, start roller bench simultaneously, rotating speed is 50～80 rev/mins, resin paste is applied and is transported on the conveyer belt respectively on two polyethylene films, the alkali-free glass fibre roving is layered on the resin paste of lower floor's polyethylene film, double-layer films closes up again, forms sandwich of layers;
6), sandwich of layers is by the running compacting of roll shaft, sheet stock after the compacting is collected rolling, wrap up with polyethylene film, obtain the rove sheet material, the structure of rove sheet material is to be followed successively by from the bottom up: polyethylene film, resin paste, alkali-free glass fibre roving, resin paste, polyethylene film;
7), on the sheet molding compound make-up machine, add woven glass roving fabric cloth, regulate the gap between scraper and the table top, remain between 3～4 millimeters;
8) go up the paste district for two that, the resin paste of sticking with paste bucket on two other are shifted onto the sheet molding compound make-up machine respectively, pour into resin paste equably last the paste on the polyethylene film of distinguishing, stop the glass cutter sweep, start roller bench simultaneously, rotating speed is 50～80 rev/mins, and resin paste is applied on two polyethylene films and is transported to respectively on the conveyer belt, and woven glass roving fabric cloth is layered on the resin paste of lower floor's polyethylene film, double-layer films closes up again, forms sandwich of layers;
9), sandwich of layers is by the running compacting of roll shaft, sheet stock after the compacting is collected rolling, wrap up with polyethylene film, obtain the Coarse Mesh Gauze sheet material, the structure of Coarse Mesh Gauze sheet material is to be followed successively by from the bottom up: polyethylene film, resin paste, woven glass roving fabric cloth, resin paste, polyethylene film;
10), rove sheet material and Coarse Mesh Gauze sheet material are moved on to 30～35 ℃ of thermostatic chambers placements slaking in 24～48 hours;
11), with rove sheet material and Coarse Mesh Gauze sheet material, press the size cutting of well lid goods, behind the lamination, put into the hydraulic press compression moulding after the preheating.
11.1), with Coarse Mesh Gauze sheet material and rove sheet material comprise further:, press the size cutting of goods, again Coarse Mesh Gauze sheet material and the stack of rove sheet material are placed, put into the hydraulic press compression moulding after the preheating then;
Well seat materials 5-30 weight portion, compacting 10-60min, well lid materials 10-40 weight portion, compacting 15-60min;
11.2), by the matched moulds button begin the compacting, when master cylinder pressure reaches 22～25MP, press emergency stop switch, the machine self-clocking, the press time to after press the backhaul switch, behind the upper cylinder half return, press and eject switch, well lid or well seat are ejected, with its taking-up, press and return the switch thimble and return, reinforcedly more afterwards carry out next round production;
11.3), the well lid to suppressing, the deburring of well seat, with the jackhammer punching, then with the polishing of angle grinding machine.
Below by a specific embodiment preparation method of the present invention is described:
Take by weighing raw material (kilogram) according to following weight:
Unsaturated polyester resin 21.65, low shrinkage additive 8.25, powdered whiting 37.9, zinc stearate 1.04, activated magnesia 0.52, curing agent 0.12, carbon black 0.52, alkali-free glass fibre roving 15, woven glass roving fabric cloth 15.
Above-mentioned raw material is selected following model and producer for use:
1), unsaturated polyester resin: model is HR-8309C, the preferred Changzhou City HuaRun compound Materials Co., Ltd of manufacturer;
2), low shrinkage additive: model is HR-8987, the preferred Changzhou City HuaRun compound Materials Co., Ltd of manufacturer;
3), powdered whiting: 400 orders, peaceful chemical plant, the preferred Beijing of manufacturer;
4), zinc stearate: zinc content 10%, the bright prosperous plastic additive of the preferred Shijiazhuang City of manufacturer factory;
5), activated magnesia: MgO 〉=95%, preferred Wuxi City pool brightness chemical industry Co., Ltd of manufacturer;
6), curing agent: peroxidized t-butyl perbenzoate, the preferred Changzhou City HuaRun compound Materials Co., Ltd of manufacturer;
7), carbon black: 400 orders, manufacturer's preferred Hebei dragon star chemical inc;
8), alkali-free glass fibre roving: ERS240-T949M, preferred Taishan glass fiber Ltd of manufacturer;
9), woven glass roving fabric cloth: EWR600-75, preferred Zhejiang megalith group of manufacturer;
Packing auxiliary material: PE film (disassembling during mold pressing): 80CMx50UM, fine jade plastic cement Co., Ltd in the preferred Hengshui of manufacturer.
The method for preparing well lid: may further comprise the steps,
1, the preparation of resin paste
1), 21.65 kilograms of unsaturated polyester resins and 8.25 kilograms of low shrinkage additives are added reactor, closes a floodgate and begin to stir 600 rev/mins of mixing speeds;
2), in beginning the reactor that stirs, add 37.9 kilograms of powdered whitings, add 1.04 kilograms of zinc stearates then, add the back and continue to stir 60 minutes;
3), stop to stir after, raw material in the reactor is installed in the agitator, in agitator, add 0.52 kilogram of activated magnesia, 0.12 kilogram curing agent, 0.52 the kilogram carbon black is shifted agitator onto under the secondary stirring machine then, stirs 15 minutes, 500 rev/mins of mixing speeds make raw material be mixed into 70 kilograms of resin paste equably.
2, the preparation of SMC (sheet molding compound) sheet material
1), on a SMC make-up machine, add 15 kilograms of alkali-free glass fibre rovings, on another SMC make-up machine, add 15 kg fiberglass woven rovings, regulate the gap between scraper and the table top, remain between 3～4 millimeters;
2), there are two to go up the paste district on every SMC make-up machine, with four last buckets of sticking with paste filling resin paste, go up the paste district for four that shift two SMC make-up machines respectively onto, pour into resin paste equably last the paste on the polyethylene film of distinguishing, the addition of resin paste is by the clearance control between scraper and the table top.15 kilograms of alkali-free glass fibre rovings can be processed into sheet material about 15 minutes, approximately spend 50% of 70 kilograms of resin paste, promptly 35 kilograms; 15 kg fiberglass woven rovings can be processed into sheet material about 15 minutes, approximately spend 50% of 70 kilograms of resin paste, promptly 35 kilograms; Start the glass cutter sweep, the effect of cutter sweep is: the short fiber that the alkali-free glass fibre roving of whole volume is cut into 30 millimeters long, if reinforcing material is a woven glass roving fabric cloth, then this glass cutter sweep stops, rotating speed is 600 rev/mins, start roller bench simultaneously, be used for transporting the polyethylene film that has added resin paste, rotating speed is 80 rev/mins, resin paste is applied and is transported on the conveyer belt respectively on two polyethylene films, alkali-free glass fibre roving or woven glass roving fabric cloth are layered on the resin paste of lower floor's polyethylene film, and double-layer films closes up again, form sandwich of layers; Polyethylene film needs to remove before mold pressing as the packing auxiliary material of SMC sheet material;
3), the running compacting of sandwich of layers by roll shaft, the sheet stock after the compacting is collected rolling, be that the rove sheet material that reinforcement material is made accounts for 50 weight portions with 15 kilograms of alkali-free glass fibre rovings, promptly 50 kilograms, need to wrap up with 0.3 kilogram of polyethylene film; With 15 kg fiberglass woven rovings is that the Coarse Mesh Gauze sheet material that reinforcement material is made accounts for 50 weight portions, promptly 50 kilograms, need with 0.3 kilogram of polyethylene film parcel, place slaking in 24 hours at 30～35 ℃ of thermostatic chambers, so just obtained two volume SMC sheet materials: a volume is the rove sheet material that reinforcement material is made with the alkali-free glass fibre roving, 50 kilograms of weight; Another volume is that reinforcement material is made the Coarse Mesh Gauze sheet material with woven glass roving fabric cloth, 50 kilograms of weight.
3, compression molding
According to the size cutting of well lid structural requirement of the present invention, then rove sheet material and Coarse Mesh Gauze sheet stack are placed, put into the hydraulic press compression moulding after the preheating again.Wherein punch is preheated to 135-155 ℃, when die is preheated to 140-160 ℃, drops into the sheet material compacting respectively; Hydraulic press nominal pressure 5000kn.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacing all should be included in protection scope of the present invention.
Claims (8)
1. cable cover plate, comprise cover board body, it is characterized in that, the front end of described cover board body is a convex, the rear end is an arcs of recesses, front center is provided with the hasp of convex, the rear end be provided with arcs of recesses after take beam, take after described and be provided with space behind the arcs of recesses between beam and the cover board body, described hasp with after take beam and match, and after take beam length greater than hasp length, the middle part of described cover board body both sides is provided with the side of arcs of recesses and takes beam, described side is taken and is provided with arcs of recesses side space between beam and the cover board body, the length that described side is taken beam is equal to or greater than hasp length, described cable cover plate also comprises connector, and the both sides of described connector are convex, take beam with described side and match.
2. a kind of cable cover plate according to claim 1, it is characterized in that, take cross section that beam and side take beam after described for circular or circular mostly, the interior week of the cross section of described hasp be circles mostly, and its radius with after to take the cross section radius that beam and side take beam identical.
3. a kind of cable cover plate according to claim 1, it is characterized in that, take cross section that beam and side take beam after described for oval or oval mostly, the interior week of the cross section of described hasp be ellipses mostly, and elliptical shape and after take beam and side and take the shape of the cross section of beam and match.
4. a kind of cable cover plate according to claim 1 is characterized in that, the cross section that described side is taken beam is for circular or circular mostly, and the cross section radius that the interior week of described connector cross section both sides is taken beam for circular and its radius mostly and side is identical.
5. a kind of cable cover plate according to claim 1, it is characterized in that, the cross section that described side is taken beam is for oval or oval mostly, and the interior week of described connector cross section both sides be ellipses mostly, and the shape that elliptical shape and side are taken the cross section of beam matches.
6. a kind of cable cover plate according to claim 1 is characterized in that described cable cover plate is the macromolecular material cover plate.
7. a kind of cable cover plate according to claim 6 is characterized in that, described macromolecular material cover plate is resin cover plate or modification SMC sheet stock cover plate.
8. a kind of cable cover plate according to claim 7 is characterized in that, the length of described modification SMC sheet stock cover plate is 650-850mm, and wide is 280-420mm, and thickness is 8-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101933830A CN101895083B (en) | 2010-05-27 | 2010-05-27 | Novel cover plate for cable trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101933830A CN101895083B (en) | 2010-05-27 | 2010-05-27 | Novel cover plate for cable trench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101895083A CN101895083A (en) | 2010-11-24 |
| CN101895083B true CN101895083B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101933830A Expired - Fee Related CN101895083B (en) | 2010-05-27 | 2010-05-27 | Novel cover plate for cable trench |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1853325A (en) * | 2003-09-19 | 2006-10-25 | 古河电气工业株式会社 | Cable trough |
| CN200947534Y (en) * | 2006-09-19 | 2007-09-12 | 刘向东 | Cable cover |
| CN201388031Y (en) * | 2009-04-02 | 2010-01-20 | 张虹 | Waterproof cover plate for cable channel |
| CN201750114U (en) * | 2010-05-27 | 2011-02-16 | 北京泛亚电通工贸有限责任公司 | Novel cable channel cover plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2912890B2 (en) * | 1996-09-13 | 1999-06-28 | 日東工業株式会社 | Protective plate for underground objects |
| GB0106230D0 (en) * | 2001-03-14 | 2001-05-02 | M2 Project Solutions Ltd | Trench cover |
-
2010
- 2010-05-27 CN CN2010101933830A patent/CN101895083B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1853325A (en) * | 2003-09-19 | 2006-10-25 | 古河电气工业株式会社 | Cable trough |
| CN200947534Y (en) * | 2006-09-19 | 2007-09-12 | 刘向东 | Cable cover |
| CN201388031Y (en) * | 2009-04-02 | 2010-01-20 | 张虹 | Waterproof cover plate for cable channel |
| CN201750114U (en) * | 2010-05-27 | 2011-02-16 | 北京泛亚电通工贸有限责任公司 | Novel cable channel cover plate |
Non-Patent Citations (1)
| Title |
|---|
| JP平10-141577A 1998.05.29 |
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|---|---|
| CN101895083A (en) | 2010-11-24 |
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