CN104099948A - High strength well lid and molding method of high strength well lid - Google Patents
High strength well lid and molding method of high strength well lid Download PDFInfo
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- CN104099948A CN104099948A CN201410305625.9A CN201410305625A CN104099948A CN 104099948 A CN104099948 A CN 104099948A CN 201410305625 A CN201410305625 A CN 201410305625A CN 104099948 A CN104099948 A CN 104099948A
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- ribs
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- outer shroud
- concrete
- well cover
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000465 moulding Methods 0.000 title claims abstract description 5
- 230000008093 supporting effect Effects 0.000 claims description 103
- 239000002344 surface layer Substances 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011518 fibre cement Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
- B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/523—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing metal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a high strength well lid and a molding method of the high strength well lid. The high strength well lid comprises a support outer ring serving as the outer edge of the whole well lid in an end-to-end connection shape, a plurality of ribs uniformly arrayed along the radial direction of the support outer ring, a support inner ring which is in an end-to-end connection shape and is welded and fixed on the inner wall surface of the support outer ring, and a concrete layer injected and molded in a cavity formed by the support outer ring and wrapping the support inner ring and the ribs therein, wherein at least one end of each rib is welded at the inner wall surface of the support outer ring; the support inner ring is abutted against the ribs and is positioned below the ribs. Compared with the prior art, the high strength well lid has the advantage of high strength while achieving low cost.
Description
Technical field
The present invention relates to well lid field, relate in particular a kind of high-strength well cover and forming method thereof.
Background technology
Well lid, is generally for hiding road or family's middle-deep well, thereby plays the effect that prevents that people or object from falling.It can be divided into metal well lid, high strength fibre cement concrete well lid and Resin man-hole cover etc. by material, and the general circle that adopts, is mainly used in the places such as greenbelt, sidewalk, motorway, harbour and lane.
For the research in this field of well lid, people are generally the functions from increasing well lid or allow the aspects such as manhole cover anti-theft performance, such as China Patent Publication No. CN103306310A, it discloses a kind of well lid, comprise well lid body, be arranged on described well lid body upper surface advertising layer, be arranged on described well lid body below and the anti-drop net that coordinates with described well lid body, described anti-drop net comprises the string bag that annulus and the circumference by described annulus link together, so it has concurrently and blocks well head, advertising and anti-fall triple functions, can widen the practicality of well lid.
Again such as China Patent Publication No. CN103452141A, it discloses a kind of anti-stealing manhole cover, comprise lid, on the circumference decorative cover of described lid, offer through hole, described through hole is connected with the passage that leads to lid center, in described passage, anti-theft bolt is installed, described anti-theft bolt end connects pushing block, described pushing block is connected with a sensor, described installation of sensors in lid center, thereby can utilize remote control inductive pick-up closure or openness anti-stealing manhole cover.
As from the foregoing, there is not people's Depth Study for the intensity of well lid body at present.But, for conventional in the market cement concrete well lid, it generally comprises steel lining outer shroud, some metal ribs and be cast in the layer of concrete in steel lining outer shroud institute Special composition, described some metal ribs are radially and arrange in steel lining outer shroud, and the two ends at metal rib are weldingly connected by mode and the steel lining outer shroud of spot welding, so known described some metal ribs, the pressure that bear on layer of concrete and well lid top is all finally to be supported by above-mentioned solder joint, therefore the problem that easily causes solder joint to come off, it not only allows the intensity of whole well lid not good, but also there is certain danger, really there is the space of improvement.
In view of this, the inventor, for the above-mentioned defect further investigation of existing concrete well lid, has this case to produce then.
Summary of the invention
The first object of the present invention is to provide a kind of high-strength well cover, to solve the not high problem of well lid intensity in prior art.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of high-strength well cover, wherein, comprising:
Supporting outer shroud, is join end to end shape the outer rim as whole well lid;
Some ribs, all, along radially the arranging of supporting outer shroud, at least one end of these some ribs is welded on the internal face of supporting outer shroud;
Ring in supporting, is the shape being weldingly fixed on the internal face of supporting outer shroud of joining end to end, and in this supporting, ring and some ribs are all inconsistent and be positioned at the below of some ribs;
Layer of concrete, encircles in the die cavity that filling molding forms at supporting outer shroud and in by supporting and some ribs are coated on wherein.
Further, in this supporting outer shroud, some ribs and supporting, ring all adopts metal material to make.
Further, these some ribs have three the first main ribs, three the second main ribs and some auxiliary ribs, these three the first main ribs and some auxiliary ribs are positioned at same plane, these three the first main ribs are all by the supporting outer shroud center of circle, and two ends are all welded on supporting outer shroud so that supporting outer shroud inner space is divided into six equal portions, these some equal one end of auxiliary rib are welded on supporting outer shroud, and the other end is free end; These three the second main ribs protrude to well lid bottom, and each second main rib all has rake and horizontal part.
Further, this high-strength well cover also comprises interior connecting ring, and in this interior connecting ring and supporting, ring is in the same plane, and this interior connecting ring is positioned at supporting ring inner side, and is all weldingly connected with three the first main ribs and some auxiliary ribs.
Further, this layer of concrete is divided into concrete surface layer and concrete nexine, and this concrete surface layer is positioned at the surface portion of well lid, and this concrete nexine is positioned at the position, inner end of well lid, in this concrete nexine, is also embedded with steel wire fibre.
Another object of the present invention is to provide a kind of forming method of high-strength well cover, wherein, comprise the steps:
1. mold high-strength well cover framework: three the first main ribs and some auxiliary ribs are welded in supporting outer shroud in the mode of radially arranging, the two ends of these three the first main ribs are all welded on supporting outer shroud internal face, these some auxiliary ribs are welded on supporting outer shroud internal face one end, and the other end is free end; Again the two ends of three the second main ribs are all welded on supporting outer shroud internal face; Then boxing in supporting is connected on the internal face of supporting outer shroud, in this supporting, the position of ring is positioned at the below of three the first main ribs, some auxiliary ribs and three the second main ribs;
2. mold concrete surface layer: the concrete material being stirred is cast in the high-strength well cover framework of above-mentioned forming;
3. mold concrete nexine: during in half curdled appearance, the concrete material that is mixed with steel wire fibre is poured into concrete surface layer top until concrete surface layer, in the time that concrete surface layer and concrete nexine all solidify, molds high-strength well cover finished product.
Further, half curdled appearance of step described in 3. refers to that, in the time that cast is mixed with the concrete material of steel wire fibre, wherein the part of part steel wire fibre can be embedded in the state of concrete surface layer.
Further, step 2. in the thickness of concrete surface layer be greater than the length of steel wire fibre.
Further, step 1. in, ring is all in the same plane with the solder joint between three the first main ribs, three the second main ribs and some auxiliary ribs in this supporting.
Further, step 1. in, after having welded three the first main ribs and some auxiliary ribs, also comprise the step of connecting ring in welding.
Adopting after said structure,, compared with prior art, at least there is following beneficial effect in a kind of high-strength well cover the present invention relates to:
One, it encircles by increasing to have welded in supporting in supporting outer shroud, and in supporting, ring is positioned at the below of some ribs in inconsistent mode, the pressure that so bear on layer of concrete, some ribs and well lid top will be by ring and some rib shareds in supporting, because ring in supporting is identical with supporting outer shroud shape, therefore the increase of solder joint between the two almost, without the cost that increases whole well lid, is reaching the high-intensity effect cheaply that has concurrently simultaneously;
Two, encircle by increasing to have welded in supporting in supporting outer shroud, also changed the structure of layer of concrete simultaneously, make layer of concrete be subject to the impact of ring in supporting can form a stage portion, utilize this stage portion to make in layer of concrete and supporting outer shroud, some ribs and supporting the adhesion between ring stronger, avoid on the one hand coming off of layer of concrete, also further improved the bulk strength of well lid simultaneously.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram that the present invention relates to a kind of high-strength well cover.
Fig. 2 is the structural representation of high-strength well cover framework in Fig. 1.
Fig. 3 and Fig. 4 are the schematic diagram of other angle of structure shown in Fig. 2.
Fig. 5 is the flow chart of steps that the present invention relates to a kind of high-strength well cover forming method.
In figure:
High-strength well cover 100 supporting outer shrouds 1
The main rib 22 of the first main rib 21 second
The interior connecting ring 24 of auxiliary rib 23
Ring 3 layer of concrete 4 in supporting.
Detailed description of the invention
In order further to explain technical scheme of the present invention, below by specific embodiment, the present invention will be described in detail.
As shown in Figures 1 to 4, a kind of high-strength well cover 100 the present invention relates to, comprises supporting outer shroud 1, some ribs, the interior ring 3 of supporting and layer of concrete 4, and this supporting outer shroud 1 is join end to end shape the outer rim as whole well lid, in the present embodiment, this supporting outer shroud 1 is an annulus; These some ribs are all along radially the arranging of supporting outer shroud 1, and at least one end of these some ribs is welded on the internal face of supporting outer shroud 1; Ring 3 is the shape being weldingly fixed on the internal face of supporting outer shroud 1 of joining end to end in this supporting, and in this supporting, ring 3 and some ribs are all inconsistent and be positioned at the below of some ribs; This layer of concrete 4, in the die cavity that filling molding forms at supporting outer shroud 1 and in by supporting, encircle 3 and some ribs be coated on wherein.Particularly, in this supporting outer shroud 1, some ribs and supporting, ring 3 all adopts metal material to make.
Like this, a kind of high-strength well cover 100 the present invention relates to, it is by having welded in supporting and encircled 3 in the interior increase of supporting outer shroud 1, and in supporting, ring 3 is positioned at the below of some ribs in inconsistent mode, the pressure that so bear on layer of concrete 4, some ribs and well lid top will be by encircling 3 and some rib shareds in supporting, identical with supporting outer shroud 1 shape owing to encircling 3 in supporting, therefore the increase of solder joint between the two almost, without the cost that increases whole well lid, is reaching the high-intensity effect cheaply that has concurrently simultaneously; In addition, by having welded in supporting and encircled 3 in the interior increase of supporting outer shroud 1, also changed the structure of layer of concrete 4 simultaneously, make layer of concrete 4 be subject to the impact of ring 3 in supporting can form a stage portion, utilize this stage portion to make in layer of concrete 4 and supporting outer shroud 1, some ribs and supporting the adhesion between ring 3 stronger, avoid on the one hand coming off of layer of concrete 4, also further improved the bulk strength of well lid simultaneously.
As shown in Figures 2 to 4, in the present embodiment, in order to play effect of taking into account intensity and saving material, these some ribs have three the first main ribs 21, three the second main ribs 22 and some auxiliary ribs 23, these three the first main ribs 21 are positioned at same plane with some auxiliary ribs 23, these three the first main ribs 21 are all by supporting outer shroud 1 center of circle, and two ends are all welded on supporting outer shroud 1 so that supporting outer shroud 1 inner space is divided into six equal portions, these some equal one end of auxiliary rib 23 are welded on supporting outer shroud 1, and the other end is free end; These three 22 of the second main ribs protrude to well lid bottom, and each second main rib 22 all has rake and horizontal part.In order further to improve intensity, this high-strength well cover 100 also comprises interior connecting ring 24, this interior connecting ring 24 is in the same plane with the interior ring 3 of supporting, and this interior connecting ring 24 is positioned at supporting ring 3 inner sides, and is all weldingly connected with three the first main ribs 21 and some auxiliary ribs 23.
Preferably, in order to utilize steel wire fibre to improve the intensity of whole well lid, and avoid steel wire fibre get rusty and affect the attractive in appearance of whole well lid simultaneously, this layer of concrete 4 is divided into concrete surface layer and concrete nexine, this concrete surface layer is positioned at the surface portion of well lid, this concrete nexine is positioned at the position, inner end of well lid, in this concrete nexine, is also embedded with steel wire fibre.So, owing to not containing steel wire fibre in the concrete surface layer of well lid surface portion, so no matter how long well lid uses, and does not have the problem that affects product appearance because getting rusty.
As shown in Figure 5, the present invention also provides a kind of forming method of high-strength well cover 100, comprises the steps:
1. mold high-strength well cover 100 frameworks: three the first main ribs 21 and some auxiliary ribs 23 are welded in supporting outer shroud 1 in the mode of radially arranging, the two ends of these three the first main ribs 21 are all welded on supporting outer shroud 1 internal face, 23 one end of these some auxiliary ribs are welded on supporting outer shroud 1 internal face, and the other end is free end; Again the two ends of three the second main ribs 22 are all welded on supporting outer shroud 1 internal face; Then be welded on the internal face of supporting outer shroud 1 encircling 3 in supporting, in this supporting, the position of ring 3 is positioned at the below of three the first main ribs 21, some auxiliary ribs 23 and three the second main ribs 22;
2. mold concrete surface layer: the concrete material being stirred is cast in high-strength well cover 100 frameworks of above-mentioned forming;
3. mold concrete nexine: during in half curdled appearance, the concrete material that is mixed with steel wire fibre is poured into concrete surface layer top until concrete surface layer, in the time that concrete surface layer and concrete nexine all solidify, molds high-strength well cover 100 finished products.
Particularly, half curdled appearance of step described in 3. refers to that, in the time that cast is mixed with the concrete material of steel wire fibre, wherein the part of part steel wire fibre can be embedded in the state of concrete surface layer.So utilize this state, not only can allow concrete surface layer and concrete nexine connect as one, also avoid steel wire fibre to see through the external surface of concrete surface layer arrival concrete surface layer completely simultaneously, now, also needing to meet a condition is exactly, and the step 2. thickness of middle concrete surface layer is greater than the length of steel wire fibre.
In order to improve the actual supporting effect that encircles 3 in supporting, step 1. in, ring 3 is all in the same plane with the solder joint between three the first main ribs 21, three the second main ribs 22 and some auxiliary ribs 23 in this supporting, and in this supporting, the solder joint of ring 3 and supporting outer shroud 1 is with the solder joint of the first main rib 21, the second main rib 22, some auxiliary ribs 23 setting of staggering.In order further to improve bulk strength, step 1. in, after weld three the first main ribs 21 and some auxiliary ribs 23, also comprise the step of the interior connecting ring 24 of welding.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present invention.
Claims (10)
1. a high-strength well cover, is characterized in that, comprising:
Supporting outer shroud, is join end to end shape the outer rim as whole well lid;
Some ribs, all, along radially the arranging of supporting outer shroud, at least one end of these some ribs is welded on the internal face of supporting outer shroud;
Ring in supporting, is the shape being weldingly fixed on the internal face of supporting outer shroud of joining end to end, and in this supporting, ring and some ribs are all inconsistent and be positioned at the below of some ribs;
Layer of concrete, encircles in the die cavity that filling molding forms at supporting outer shroud and in by supporting and some ribs are coated on wherein.
2. a kind of high-strength well cover as claimed in claim 1, is characterized in that, in this supporting outer shroud, some ribs and supporting, ring all adopts metal material to make.
3. a kind of high-strength well cover as claimed in claim 1, it is characterized in that, these some ribs have three the first main ribs, three the second main ribs and some auxiliary ribs, these three the first main ribs and some auxiliary ribs are positioned at same plane, these three the first main ribs are all by the supporting outer shroud center of circle, and two ends are all welded on supporting outer shroud so that supporting outer shroud inner space is divided into six equal portions, and these some equal one end of auxiliary rib are welded on supporting outer shroud, and the other end is free end; These three the second main ribs protrude to well lid bottom, and each second main rib all has rake and horizontal part.
4. a kind of high-strength well cover as claimed in claim 3, it is characterized in that, this high-strength well cover also comprises interior connecting ring, in this interior connecting ring and supporting, ring is in the same plane, this interior connecting ring is positioned at supporting ring inner side, and is all weldingly connected with three the first main ribs and some auxiliary ribs.
5. a kind of high-strength well cover as claimed in claim 1, it is characterized in that, this layer of concrete is divided into concrete surface layer and concrete nexine, and this concrete surface layer is positioned at the surface portion of well lid, this concrete nexine is positioned at the position, inner end of well lid, in this concrete nexine, is also embedded with steel wire fibre.
6. a forming method for high-strength well cover, is characterized in that, comprises the steps:
1. mold high-strength well cover framework: three the first main ribs and some auxiliary ribs are welded in supporting outer shroud in the mode of radially arranging, the two ends of these three the first main ribs are all welded on supporting outer shroud internal face, these some auxiliary ribs are welded on supporting outer shroud internal face one end, and the other end is free end; Again the two ends of three the second main ribs are all welded on supporting outer shroud internal face; Then boxing in supporting is connected on the internal face of supporting outer shroud, in this supporting, the position of ring is positioned at the below of three the first main ribs, some auxiliary ribs and three the second main ribs;
2. mold concrete surface layer: the concrete material being stirred is cast in the high-strength well cover framework of above-mentioned forming;
3. mold concrete nexine: during in half curdled appearance, the concrete material that is mixed with steel wire fibre is poured into concrete surface layer top until concrete surface layer, in the time that concrete surface layer and concrete nexine all solidify, molds high-strength well cover finished product.
7. the forming method of a kind of high-strength well cover as claimed in claim 6, it is characterized in that, half curdled appearance of step described in 3. refers to that, in the time that cast is mixed with the concrete material of steel wire fibre, wherein the part of part steel wire fibre can be embedded in the state of concrete surface layer.
8. the forming method of a kind of high-strength well cover as claimed in claim 6, is characterized in that, step 2. in the thickness of concrete surface layer be greater than the length of steel wire fibre.
9. the forming method of a kind of high-strength well cover as claimed in claim 6, is characterized in that, step 1. in, ring is all in the same plane with the solder joint between three the first main ribs, three the second main ribs and some auxiliary ribs in this supporting.
10. the forming method of a kind of high-strength well cover as claimed in claim 6, is characterized in that, step 1. in, after having welded three the first main ribs and some auxiliary ribs, also comprise the step of connecting ring in welding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769885.6A CN105464139A (en) | 2014-04-16 | 2014-07-01 | Forming method for high-strength well lids |
| CN201410305625.9A CN104099948B (en) | 2014-04-16 | 2014-07-01 | A kind of high-strength well cover and forming method thereof |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150769.1 | 2014-04-16 | ||
| CN201410150769 | 2014-04-16 | ||
| CN2014101507691 | 2014-04-16 | ||
| CN201410305625.9A CN104099948B (en) | 2014-04-16 | 2014-07-01 | A kind of high-strength well cover and forming method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510769885.6A Division CN105464139A (en) | 2014-04-16 | 2014-07-01 | Forming method for high-strength well lids |
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| Publication Number | Publication Date |
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| CN104099948A true CN104099948A (en) | 2014-10-15 |
| CN104099948B CN104099948B (en) | 2016-07-06 |
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| CN201410305625.9A Active CN104099948B (en) | 2014-04-16 | 2014-07-01 | A kind of high-strength well cover and forming method thereof |
| CN201510769885.6A Pending CN105464139A (en) | 2014-04-16 | 2014-07-01 | Forming method for high-strength well lids |
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| CN201510769885.6A Pending CN105464139A (en) | 2014-04-16 | 2014-07-01 | Forming method for high-strength well lids |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024694A (en) * | 2018-08-20 | 2018-12-18 | 浙江大路科技有限公司 | Well lid cover board |
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| CN2809015Y (en) * | 2005-07-25 | 2006-08-23 | 江西东润实业有限公司 | Steel fibre concrete manhole cover |
| CN2861287Y (en) * | 2005-12-15 | 2007-01-24 | 胡亚非 | High-strength durable composite well cover |
| CN103374929A (en) * | 2013-08-09 | 2013-10-30 | 凌其彬 | Compression resistance type reinforced concrete inspection well cover |
| CN203977460U (en) * | 2014-04-16 | 2014-12-03 | 卢育文 | A kind of high-strength well cover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024694A (en) * | 2018-08-20 | 2018-12-18 | 浙江大路科技有限公司 | Well lid cover board |
| CN109024694B (en) * | 2018-08-20 | 2023-09-08 | 浙江大路科技有限公司 | Cover plate of well lid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464139A (en) | 2016-04-06 |
| CN104099948B (en) | 2016-07-06 |
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