CN1089394C - Concrete block having cover plate - Google Patents
Concrete block having cover plate Download PDFInfo
- Publication number
- CN1089394C CN1089394C CN 97181469 CN97181469A CN1089394C CN 1089394 C CN1089394 C CN 1089394C CN 97181469 CN97181469 CN 97181469 CN 97181469 A CN97181469 A CN 97181469A CN 1089394 C CN1089394 C CN 1089394C
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- Prior art keywords
- cover plate
- block
- main body
- mating face
- concrete block
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- Expired - Fee Related
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
Abstract
Even if errors of certain extent exist between respective junction surfaces of the main part of a concrete block having a cover plate and the cover plate, the cover plate is placed on the block main part in a self-alignment manner to avoid noise which is caused by the rattling due to the forming errors of the respective junction surfaces of the cover plate and the block main part. The junction surfaces of the block main part are flat planes which are inclined in directions symmetrically with respect to the center line of the concrete block, and the surfaces of the cover plate are the curved surfaces of partial cylinders or have V-shaped cross sections with ridges which have wide angles and protrude toward the junction surfaces . The distortion of the cover plate and the errors in the height direction of the junction surfaces of the block main part are automatically absorbed by the shift of the cover plate in a horizontal direction. Further, even if the error of the inclination angle of the flat plane side and the error of the center of curvature or the radius of curvature of the partial cylinder surface side exist, the line contact states between the respective junction surfaces are ensured.
Description
Technical field
The present invention relates to the concrete block of a kind of U font geosynclinal block or side channel piece and so on, the structure that particularly relates to the joint portion of the cover plate of this concrete block of plate with cover and main body block relates to the caused cover plate of form error that can prevent owing to the junction surface of cover plate side and main body block side and rocks the structure that produces noise.
Technical background
General side channel piece, U font geosynclinal block, on the opening length direction side on be located at it, being provided with section is L shaped breach, is that the cover plate of rectangle embeds in this barbed portion with the plane, just can be with the top closure of openings of concrete block.
Though concrete block is to be shaped with welded molding box, on the product property of the structure of molding box, concrete block, can not reaches picture and pass through high dimensional accuracy the metal product of machining.Therefore, the concrete block of plate with cover exists following problems, and promptly the caused cover plate of scale error owing to the mating face of the mating face of cover plate side and main body block side rocks the problem that produces noise.
The means that prevent this noise have following several structure: the structure that rubber tile is set at the junction surface of cover plate and main body block; The mating face of cover plate and main body block is made the structure (seeing that the practical new case of Japan discloses clear and the 63-18590 communique) on inclined plane; Or the cover plate and the mating face of main body block made mutually structure at similar geometrically curved surface (see Japan's special permission openly put down into the 6-248688 communique).
More particularly, the cover plate of this concrete block, be a kind ofly to be parallel to each other and the structure in opposite directions both sides with the main body block side bearing, because the error of the form error of cover plate torsional direction or the mating face short transverse of main body block, when cover plate covered on main body block, it was dummy status that an angle of cover plate just becomes, in vehicle traveling process, when this overhanging portion bore weight, cover plate just rocked and produces noise.
The structure that the rubber mass parts are set on the mating face of cover plate and main body block adopts often, but this structure exists wearing and tearing, deterioration equivalent life problem.The mating face of cover plate and main body block is made inclined plane with same angle of inclination, perhaps make at the curved surface that has same section configuration geometrically, the prerequisite of this structure is that the mating face, both sides is the face contact, therefore, require the precision of the geomery on mating face to want high, particularly the mating face is the structure of curved surface, when making molding box, the positional precision of the radius of curvature and the center of curvature must be controlled at very accurate level, and therefore, it is very difficult making the molding box with institute's precision prescribed.
The present invention is in view of the existing above-mentioned variety of issue of structure in the past, obtaining a kind of like this concrete block with cover as the exploitation problem, even the shape of this concrete block on the mating face of cover plate and main body block exists error to a certain degree mutually, cover plate also can be at the state lower cover of automatic aligning on main body block, so just, can eliminate the phenomenon of rocking on mating face, therefore, even the precision of molding box is not too high, also can obtain to have the concrete block of the cover plate that does not produce noise.
Summary of the invention
As citation form, promptly cover plate contacts (in fact, owing to the distortion on concrete block surface or buckle become the line contact with limited amplitude) to concrete block of the present invention with the line that is in contact with one another on the mating face of main body block with following form.
The 1st kind of form is characterised in that the side in the face that is bonded with each other of cover plate and main body block is a clinoplain, and this plane tilts at symmetry direction with respect to the center line of concrete block, and the opposing party mating face is that part is curved surface cylindraceous.
The 2nd kind of form is characterised in that, side in the face that is bonded with each other of cover plate and main body block is a plane inclined, this plane tilts at symmetry direction with respect to the center line of concrete block, and the opposing party mating face is the V-arrangement section, and this V-arrangement section has to the outstanding obtuse angle crest line in an above-mentioned side's mating face.
In the 1st kind and the 2nd kind of form, because the side on mating face is made with respect to the concrete block center line on inclined plane that symmetry direction tilts, so reversing or the error of the short transverse on the mating face of main body block of cover plate, can can guarantee the line contact condition on mating face, both sides by cover plate moving and counteracting automatically on left and right directions.Side because of the mating face is the plane again, and the opposing party is barrel surface or obtuse angle crest line, so make the angle of slope of plane one side or make the center of curvature of barrel surface one side or the error of radius of curvature, can not become the obstacle of the line contact condition of guaranteeing the mating face, both sides.
Therefore, only control the mutual straightness accuracy in the longitudinal direction in mating face of both sides concrete block, cover just can be by in horizontal plane at the cover plate on the main body block small sway and automatic aligning, can keep these relative both sides to be in the line contact condition, therefore the control of the precision of the manufacturing of molding box and product is very easy to, and, can prevent that cover plate from rocking.
As long as following, think deeply, just be readily appreciated that above-mentioned effect, when promptly being placed on the plane to cylinder, no matter even the radius of curvature size of this cylinder, or whichaway placement are rolling cylinder, even cylinder is circular cone, also can often keep the line contact condition on this cylinder and plane.In addition, when a side junction surface being made the crest line of V-arrangement of section, even, also can keep crest line and plane to be the line contact condition at the section drift angle of crest line or under the situation that the member of a side that is provided with crest line tilts.
In addition,, and make crest line become the obtuse angle crest line, can make actual the pressure drop at junction surface low, so intensity can not go wrong yet by the curvature of increase cylinder.
The 3rd kind of form is characterised in that on the concrete block of the cover plate that has the 1st kind of form, main body block is a geosynclinal block, and the cylindric curved surface of part is made on the main body side mating face of the supporting plate of this geosynclinal block.
The 4th kind of form is characterised in that on the concrete block of the cover plate with the 2nd kind of shape, main body block is a geosynclinal block, and the forming V-shape section is done on the main body side mating face of the supporting plate of this geosynclinal block, and this V-arrangement section has the obtuse angle crest line.
The main body block of the 3rd kind of form and the 4th kind of form, because the main body side mating face of supporting plate is part cylindrical shape curved surface or the V font section with obtuse angle crest line, therefore, the shape of cover plate can be made simple shape, available molding box with several chambeies is made cover plate.
Cover plate of the present invention is characterised in that, the length direction central authorities in the side of a side that is provided with the mating face are provided with protuberance, and the overhang of this protuberance is littler than the gap that forms between cover plate and the main body block.In addition, main body block of the present invention is characterised in that, is provided with protuberance in the length direction central authorities of the inner face of the opening that is provided with mating face one side, and the overhang of this protuberance is littler than formed gap between main body block and the cover plate.The effect of these protuberances is can not suppress cover plate moving on width because of cover plate shaking in horizontal plane influences the automatic aligning effect.
The simple declaration of figure
Fig. 1 is the decomposition axonometric drawing of embodiment 1,
Fig. 2 is the significant points enlarged drawing of embodiment 1,
Fig. 3 is the significant points enlarged drawing of embodiment 2,
Fig. 4 is the significant points enlarged drawing of embodiment 3,
Fig. 5 is the significant points enlarged drawing of embodiment 4,
Fig. 6 is the significant points enlarged drawing of embodiment 5,
Fig. 7 is the decomposition axonometric drawing of embodiment 6,
Fig. 8 is the significant points enlarged drawing of embodiment 6,
Fig. 9 is the significant points vertical view of embodiment 6,
Figure 10 is the axonometric drawing that has with the cover plate of top parallel bearing surface,
Figure 11 is the significant points enlarged drawing of embodiment 7,
Figure 12 is the significant points enlarged drawing of embodiment 8,
Figure 13 is the significant points enlarged drawing of embodiment 9,
Figure 14 is the significant points enlarged drawing of embodiment 10,
Figure 15 is the significant points enlarged drawing of embodiment 11,
Figure 16 is the axonometric drawing that the mating face of embodiment 11 forms member,
Figure 17 is the significant points enlarged drawing of embodiment 12.
Implement optimised form of the present invention
In the following embodiments, label " 1-X ", " 2-X " correspond respectively to the parts X among the embodiment 1,2, and for example label " 1-2 " is represented the parts 2 among the embodiment 1, the parts 3 among label " 2-3 " the expression embodiment 2, by that analogy.
Fig. 1 and Fig. 2 are the figure of the expression embodiment of the invention 1.The concrete block of present embodiment comprises the cover plate 1-3 of U font geosynclinal block 1-2 and two one group, and wherein U font geosynclinal block 1-2 is provided with water channel 1-1, and cover plate 1-3 is used for enclosed flume 1-1.
U font geosynclinal block 1-2 constitutes water channel 1-1 by bottom 1-4 and the 1-5 of two side portion, the crest line portion of water channel one side of the top 1-6 of side wall portion is cut into section and is anti-" ∧ " font, this grooving forms the inner face 1-8 mating face 1-9 with pattern draft, and this mating face is from the inwards downward-sloping extension of the lower edge of inner face 1-8.The center line 1-P of the U font geosynclinal block 1-2 of the inner face 1-8 of both sides and mating face 1-9 is a line of symmetry and symmetrically.
In addition, cover plate 1-3 is from the plane, and its width is narrower slightly than the interval between the inner face 1-8 of side wall portion, and its length is generally 1/2～1/4 of geosynclinal block length, and the cover plate of illustrated embodiment is rectangular, and its length is 1/4 of geosynclinal block length.Cover plate 1-3 has the side 1-11 parallel with the inner face 1-8 of sidewall, and the top 1-12 of cover plate is parallel with following 1-13.The part that following 1-13 is connected with side 1-11 forms the cylindric mating face 1-14 of part.The thickness of cover plate 1-3 equals following thickness, when promptly mating face 1-14 contacts with the mating face 1-9 of side wall portion, and the thickness when the top 1-6 of top 1-12 on the cover plate and U word geosynclinal block is in same plane.
Fig. 3 is the figure of the expression embodiment of the invention 2, and the section configuration of the mating face 2-14 of cover plate 2-3 is different with embodiment's 1.The side of cover plate 2-11 and below between the 2-13, be formed with the mating face 2-14 that the section towards inclined outer side is in the shape of the letter V.
Fig. 4 is the figure of the expression embodiment of the invention 3.The U font geosynclinal block 3-2 of present embodiment is provided with the step surface 3-15 parallel with top 3-6, and its central authorities are provided with the prominent bar 3-16 of section semicircular in shape.In addition, the both sides of 3-13 below cover plate 3-3 are provided with the groove 3-17 that section is inverted v-shaped.The interval of inverted v-shaped groove 3-17 is narrower slightly than the interval of prominent bar 3-16, and when cover plate 3-3 being placed on U word geosynclinal block 3-2 when going up, the outer lateral incline 3-9 of V font groove 3-17 just contacts with the Outboard Sections of the arc surface 3-14 of prominent bar 3-16.
Fig. 5 is the figure of the expression embodiment of the invention 4.Present embodiment with embodiment 3 identical construction on, be provided with the interval of inverted v-shaped groove 4-17 narrower slightly than the interval of prominent bar 4-16, in the time of on cover plate 4-3 being placed on U word geosynclinal block 4-2, the interior lateral incline 4-9 of inverted v-shaped groove 4-17 is in the inside part contact of the arc surface 4-14 of prominent bar 4-16.Under this contact condition since the component that is added in the load on the cover plate 4-3 acting on the direction of expansion coagulation plot side wall portion 4-5, opposite with soil pressure direction around the concrete block, so can reduce to act on stress on the side wall portion 4-5.This situation with embodiment 1 and embodiment 2 is the same.
Figure 6 shows that the concrete block of embodiment 5.This embodiment is the example that the position of prominent bar 5-16 among the embodiment 4 and V-shaped groove 5-17 relation has been put upside down, and prominent bar 5-16 is located at the cover plate side, and V font groove 5-17 is located on the step surface 5-15 of U word geosynclinal block 5-2.The interval of V font groove 5-17 is established narrowlyer slightly than the interval of prominent bar 5-16, and when being arranged on cover plate 5-3 on the U word geosynclinal block 5-2, the arc surface 5-14 of prominent bar 5-16 contacts with inclined-plane, the outside 5-9 of V font groove 5-17.
Under the situation of the structure of embodiment 3 to embodiment 5, as prominent bar 3-16 (4-16, arc surface 3-14 (4-14 5-16), 5-14) with V font groove 3-17 (4-17, when side's 5-17) inclined plane contacts, though at V font groove 3-17 (4-17, the opposing party's 5-17) inclined plane and prominent bar 3-16 (4-16, form gap 3-18 (4-18 5-16), 5-18), as long as but with this gap 3-18 (4-18, being dimensioned to 5-18) can be eliminated cover plate 3-3 (4-3, reversing or U word geosynclinal block 3-2 (4-2, the needed enough gaps of the error of short transverse 5-2) 5-3), owing to unexpected external force effect makes cover plate 3-3 (4-3,5-3) on width when mobile, (4-18 is in scope 5-18) this mobile range can be limited in gap 3-18, can prevent that (4-3, mobile range 5-3) surpasses needed amplitude to cover plate 3-3.
Fig. 7 to Fig. 9 is the figure of the expression embodiment of the invention 6.The main body block 6-2 of the concrete block of this embodiment 6 is the concrete block of variable pitch type, and central authorities are provided with rectangular aperture 6-19 in the above, and this rectangular aperture seals with 2 cover plate 6-3,6-3.The dual-side of this opening is cut into section and roughly is the ∧ font, and this otch comprises inner face 6-8 and the mating face 6-14 with pattern draft, and this mating face integral body is inwards downward-sloping from the lower edge of inner face 6-8, the part barrel surface shape of protruding in the middle of forming.The inner face 6-8 of both sides and mating face 6-14 are symmetrical with respect to the center line 6-P of main body block 6-2.
In addition, cover plate 6-3 is rectangular, and from the plane, its width is narrower slightly than the interval between the inner face 6-8 of side wall portion, its length be opening 6-19 length 1/2.Cover plate 6-3 has the side 6-11 parallel with the inner face 6-8 of opening 6-19, and the top 6-12 of cover plate is parallel with following 6-13.The part that following 6-13 is connected with side 6-11 is the cover plate side engagement face 6-9 that is made of following plane, and the angle on this plane equates substantially with total angle of slope of part main body side cylindraceous mating face 6-14.Central authorities at the length direction of the side of cover plate 6-3 6-11, be provided with overhang smaller projection 6-21, half of interval between the inner face 6-8 of its overhang ratio open and the difference of the width of cover plate 6-3 (when cover plate 6-3 is placed on the positive center of opening 6-19, the size of the gap 6-20 that forms between the inner face 6-8 of the side 6-11 of cover plate and opening) is little.
The effect of this projection 6-21 is when cover plate 6-3 is placed on the main body block 6-2, to prevent this cover plate 6-3 parallel moving on width.On concrete block of the present invention, when producing error between main body side mating face 6-14 and the cover plate side bonding surface 6-9, cover plate 6-3 rocks phenomenon, as shown in Figure 9, see that from the plane length direction center 6-Q that makes cover plate 6-3 tilts slightly with respect to the center line 6-R of main body block, the rocking phenomenon and just can eliminate of cover plate.In addition, cover plate 6-3 only has the top effect of tilting slightly that makes cover plate 6-3 with respect to parallel the moving of main body block 6-2 on width on width, be not directly used in and prevent that cover plate from rocking.Prevent projection 6-21 (according to circumstances, projection 6-21 also can be located at main body block one side) mobile on width owing to the central portion at cover plate 6-3 is provided with, on main body block 6-2, carry out unnecessary movement so can prevent cover plate 6-3.
The molding box that main body block 6-2 and cover plate 6-3 is formed usefulness has various forms.Cover plate is shaped certainly one by one, when the simple shape of cover plate, and available molding box, so just available 1 molding box several piece cover plate that is shaped simultaneously with several chambeies, this structure is very universal.Cover plate 6-3 one by one is shaped, be applicable to the such structure of embodiment 1 of cover plate side engagement face 6-14 being made the part barrel surface, when having the molding box shaping cover plate 6-3 in several chambeies, be suitable for main body side mating face 6-14 is made the such structure of embodiment 6 of part barrel surface.The general geosynclinal block that uses is to adopt 2～4 structure of cover plate are set on 1 main body block, therefore, main body side mating face 6-14 is made part structure cylindraceous, can reduce the cost of molding box on the whole.
In addition, as shown in figure 10, on the cover plate 6-3 that makes the mating face in the past structure parallel with top 6-12, side length direction central authorities in the mating face side, be provided with the projection 6-21 that prevents that whole cover plate from moving on width, like this, can reduce the cover plate posture bad phenomenon on the main body block.
By above-mentioned explanation, particularly, understood which type of problem the present invention solves with which type of countermeasure, is described further several embodiment with regard to idea of the present invention below by to the method for solution problem and the explanation of effect thereof.
Embodiment 7 shown in Figure 11 is the same with embodiment shown in Figure 32, is that V-arrangement section, the main body side mating face 7-9 that cover plate side engagement face 7-14 has the obtuse angle crest line is the example of clinoplain.In embodiment 7, the face (face of representing with 2-14a among Fig. 3) that one of V-arrangement section that forms cover plate side engagement face 7-14 is square and the following 7-13 of cover plate become with one side, belong to same form of implementation with the embodiment among Fig. 3.
Embodiment 8 shown in Figure 12 belongs to same form of implementation with embodiment shown in Figure 86, be that cover plate side engagement face 8-9 is made clinoplain, main body side mating face 8-14 made the example of part cylindrical shape curved surface, this part barrel surface is located at before step surface 8-15 and the internal face that forms water channel 8-1, and this step surface cuts away the inboard upper limb of main body block and forms.
Embodiment 9 shown in Figure 13 is the examples that replace the part barrel surface among the embodiment 6 with the V-arrangement section with obtuse angle crest line, and cover plate side engagement face 9-9 is a clinoplain, and main body side mating face 9-14 is the V-arrangement section with obtuse angle crest line.
Embodiment 10 shown in Figure 14, it is the example that on the V-arrangement crest line part of the embodiment of Figure 13, is provided with the part barrel surface, from profile is the shape that V-arrangement section and barrel surface are combined, and is actually the example that clinoplain and barrel surface is joined together supporting plate 10-3.Therefore, on the concrete block of this form, the angle that the face 10-14a and the 10-14b of the V-arrangement of formation barrel surface 10-14c both sides are constituted it be not necessary for the obtuse angle.
Figure 15 and Figure 16 are the figure of the expression embodiment of the invention 11.According to structure of the present invention and the effect as can be known, mating face between the main body block 11-2 of cover plate 11-3, not necessarily to make cover plate 11-3 or main body block 11-2 form the inseparable state of one, under the state on the main body block, be essentially one and get final product in that cover plate is covered during use.In Figure 15 and embodiment 11 shown in Figure 16, with double-sided belt the mating face being formed member 11-26 sticks on the step surface 11-15 with main body block of structure in the past, just formed the main body block 11-2 of structure shown in Figure 8, it is as barrel surface with inclined-plane shown in Figure 16 that above-mentioned bonding surface forms member 11-26.The mating face that forms among Figure 16 of main body side mating face 11-14 forms member 11-26, and is also passable even its inclined-plane 11-25 is a V-arrangement section shown in Figure 13.This mating face forms member 11-26, can use aluminium casting, and stainless steel cutting spare, vulcanie, synthetic resin etc. are made.The structure of this embodiment 11 being provided with under the situation of the concrete block of structure in the past, is installed on the main body block that has been provided with by the mating face being formed member 11-26, only changes cover plate 11-3 and just can implement the present invention.
Figure 17 is the example that expression cover plate 12-3 adopts the cover plate (thing that is called grid) of metal grid system.In the example of Figure 17, the mating face 12-14 of main body block 12-2 one side is the cylindric mating face of part, in addition, on the cover plate 12-3 that constitutes by metal system grid, being welded with section is the leg member 12-27 of inclination font, it have inclination below, be formed with cover plate side engagement face 12-9 below this leg member.Under the situation that adopts metal grid system cover plate, also can adopt following form certainly: the form different with example shown in Figure 17, promptly the mating face 12-14 of main body block side is made the form of V-arrangement section with obtuse angle crest line; With the mating face of main body block side as clinoplain, the form of making barrel surface or V-arrangement section below the leg member 12-27 of cover plate.
Application on the industry
As mentioned above, have the concrete block of cover plate of the present invention, utilize automatic aligning effect passable Eliminate the shape error of cover plate side and main body piece side engagement portion, so it is existing to prevent that cover plate rocks Resemble. Therefore, the concrete block of cover plate can be set at the current road of automobile.
Claims (6)
1. the concrete block of a plate with cover, it is characterized in that, side (1-9) in the mating face (1-9,1-14) between cover plate (1-3) and the main body block (1-2) be center line (1-P) with respect to concrete block on the plane that symmetry direction tilts, the opposing party mating face (1-14) is the cylindric curved surface of part.
2. the concrete block of plate with cover as claimed in claim 1 is characterized in that, described main body block (1-2) is a geosynclinal block, and the main body side mating face (1-14) of supporting the cover plate (1-3) of this geosynclinal block is part curved surface cylindraceous.
3. the concrete block of a plate with cover, it is characterized in that, side (2-9) in the mating face (2-9,2-14) between cover plate (2-3) and the main body block (2-2) be center line (2-P) with respect to concrete block on the plane that symmetry direction tilts, the opposing party mating face (2-14) is the V-arrangement section that has to the outstanding obtuse angle crest line in an above-mentioned side's mating face (2-9).
4. the concrete block of plate with cover as claimed in claim 3, described main body block (2-2) is a geosynclinal block, supports the V-shaped section in main body side mating face (2-14) of the cover plate (2-3) of this geosynclinal block, this V-arrangement section has the obtuse angle crest line.
5. the cover plate of the concrete block of a plate with cover, it is characterized in that, length direction central authorities in the side (6-11) of a side that is provided with mating face (6-14,6-9) are provided with protuberance (6-21), and the overhang of this protuberance is littler than the gap (6-20) that forms between side (6-11) and the main body block (6-2).
6. the main body block of the concrete block of a plate with cover, it is characterized in that, length direction central authorities at the inner face (6-8) of the opening of a side that is provided with mating face (6-9,6-14) are provided with protuberance, and the gap (6-20) that forms between the inner face (6-8) of the overhang ratio open of this protuberance and the cover plate (6-3) is little.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP334713/96 | 1996-11-29 | ||
| JP33471396 | 1996-11-29 | ||
| JP334713/1996 | 1996-11-29 | ||
| JP123281/1997 | 1997-04-25 | ||
| JP123281/97 | 1997-04-25 | ||
| JP12328197 | 1997-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1244900A CN1244900A (en) | 2000-02-16 |
| CN1089394C true CN1089394C (en) | 2002-08-21 |
Family
ID=26460256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97181469 Expired - Fee Related CN1089394C (en) | 1996-11-29 | 1997-11-27 | Concrete block having cover plate |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR19980042921A (en) |
| CN (1) | CN1089394C (en) |
| WO (1) | WO1998023821A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0105172D0 (en) * | 2001-03-02 | 2001-04-18 | Company X Dev Ltd | Cable management |
| DE102012008578B4 (en) * | 2012-04-27 | 2013-11-21 | Ralf Zürcher | Device for laying a U-shaped cable channel in railway lines |
| CN103866790B (en) * | 2014-03-26 | 2016-08-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Ground beam type raceway groove |
| CN104452956B (en) * | 2014-11-18 | 2016-10-05 | 珠海市水通环保设备有限公司 | Porous pavement basic unit water storage module and manufacture method thereof |
| CN106351314A (en) * | 2016-08-29 | 2017-01-25 | 山东胜伟园林科技有限公司 | Open trench for preventing water evaporation |
| CN110438864A (en) * | 2018-05-03 | 2019-11-12 | 上海墒抢环境技术有限公司 | Road stores dirt gutter |
| CN108923351B (en) * | 2018-09-19 | 2024-01-12 | 湖北三峡职业技术学院 | Cable channel opened and closed by means of buoyancy |
| CN109487654B (en) * | 2018-12-28 | 2021-01-05 | 温州宏伟建设有限公司 | Municipal works road laying structure |
| KR102594401B1 (en) | 2023-04-28 | 2023-10-26 | 김영민 | Waterway cover manufacturing equipment and manufactured waterways cover |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2581132Y2 (en) * | 1992-02-28 | 1998-09-21 | 秀一 清水 | Side groove with lid |
| JP2514918B2 (en) * | 1993-03-01 | 1996-07-10 | 純一 平田 | Gutter that does not generate noise |
| JP3031035U (en) * | 1996-05-09 | 1996-11-12 | 株式会社ウチコン | Gutter structure |
-
1997
- 1997-11-27 WO PCT/JP1997/004339 patent/WO1998023821A1/en active Application Filing
- 1997-11-27 CN CN 97181469 patent/CN1089394C/en not_active Expired - Fee Related
- 1997-11-29 KR KR1019970064385A patent/KR19980042921A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998023821A1 (en) | 1998-06-04 |
| CN1244900A (en) | 2000-02-16 |
| KR19980042921A (en) | 1998-08-17 |
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