CN202530476U - Square composite manhole operation pitshaft and manhole cover - Google Patents
Square composite manhole operation pitshaft and manhole cover Download PDFInfo
- Publication number
- CN202530476U CN202530476U CN201220122410XU CN201220122410U CN202530476U CN 202530476 U CN202530476 U CN 202530476U CN 201220122410X U CN201220122410X U CN 201220122410XU CN 201220122410 U CN201220122410 U CN 201220122410U CN 202530476 U CN202530476 U CN 202530476U
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Abstract
The utility model relates to a square composite manhole operation pitshaft and a manhole cover. The square composite manhole operation shaft and the manhole cover are manufactured through one-shot high-temperature compression molding by adopting sheet molding compound (SMC) materials. The pitshaft is composed of four pieces of identical SMC materials through sealing splicing. The manhole cover comprises a manhole cover main body and a square cover plate. The square cover plate covers on a square hole disposed at the center of the manhole cover main body and one side of the square cover plate is pivoted with the manhole cover main body. Edges extending downwards are disposed on the periphery of the square cover plate and edges extending upwards are disposed on the periphery of the square hole. When the square cover plate is covered on the square hole, the downward edges of the square cover plate surrounds outside the upward edges of the square hole so as to prevent rain from flowing into. Through adoption of characteristics of the compound materials and high-temperature compression molding process, finished products has high strength and the problem of easy deformation of the pitshaft is solved. In addition, the pitshaft can be produced and delivered by splitting into pieces and then carries out on-site assembly, facilitates organizing large-scale production, and saves transportation expenses.
Description
Technical field
The utility model relates to a kind of people's hole operation pit shaft and well lid, particularly relates to square compound people's hole operation pit shaft and the well lid that use tank farm, a kind of petrol filling station.
Background technology
At present, the oil storage tank of petrol filling station adopts direct buried formula to install, be about to oil storage tank directly be embedded in underground, with the safety that helps the tank field with save the soil.Structures such as the fuel feed hole of buried tank, gauge hatch and spiracle all are located on the manhole cover on oil tank wall top; And on manhole cover, engage with pipelines such as oil inlet pipe, dipping tube and respiratory siphons respectively, so that pipelines such as oil inlet pipe, dipping tube and respiratory siphon get into oil tank by manhole cover.Because the abutment of these pipelines needs often to safeguard, to keep its leakproofness.For the ease of Operation and maintenance, on manhole cover, to offer people's hole operation well, the well lid of people's hole operation well will be provided with on the ground usually.
People's hole operation well on the existing petrol filling station oil tank adopts the steel plate welding to add brick mode more, or adopts the finished product pit shaft of glass fiber reinforced plastic material to install, and perforate connects the input and output pipeline on well bore wall then.Wherein, it is long to adopt the steel plate welding to add brick people's hole operation well construction cycle, and constructor's qualification technical capability is had relatively high expectations, and is not easy standardized work; Simultaneously, adopting between inlet and outlet piping that the steel plate welding adds brick people's hole operation well and the people's hole operation well is hard the connection, receives the influence of factors such as border variations in temperature and surface settlement, and people's hole operation well easy of crack influences sealing.Though it is comparatively quick to adopt people's hole operation well of the finished product pit shaft of glass fiber reinforced plastic material to construct, because pit shaft has been complete cylindrical shell when dispatching from the factory, must guarantee that in being transported to the process of erecting bed cylindrical shell does not receive any damage, logistics cost is high; In addition, manual operations is adopted in the production of the pit shaft of people's hole operation well of existing glass steel matter more, is prone to cause borehole wall thickness to differ, and is rough, so receive the influence of production technology, the quality of the finished product pit shaft of existing glass steel matter is very unstable; And the resistance to pressure of the pit shaft of glass fiber reinforced plastic material is not strong yet, deformed by the influence of factor such as surface settlement, even breaks, and makes troubles for normal production.The well lid of existing people's hole operation well normally adopts the manufacturing of glass fiber reinforced plastic material, and perforating on well lid, and it is aboveground with screw well lid to be fixed on people's hole operation.Because the well lid of people's hole operation well will be provided with on the ground usually, and existing with the fixing well lid of screw and can't effectively avoid rainwater to get in the well, therefore be easy to cause in the well facility to make moist and get rusty, make that facility breaks down in the well.This shows that people's hole operation well of tank farm, above-mentioned existing petrol filling station can not satisfy the construction and the quality requirement of people from tank farm, petrol filling station hole operation pit shaft, and well lid is to the antiseep requirement of rainwater.
Summary of the invention
The purpose of the utility model is, overcomes the defective of people's hole operation well existence of tank farm, existing petrol filling station, and a kind of square compound people's hole operation pit shaft of new structure is provided; Technical problem to be solved is to make it through adopting the pit shaft burst production field-installed mode of providing and delivering; Can make things convenient for size of the organization production, save the logistics spending, on-the-spot simultaneously installation is fast and convenient; Can effectively shorten the construction period, be very suitable for practicality.
Another purpose of the utility model is; Overcoming the defective that people's hole operation well of tank farm, existing petrol filling station exists, is to make it be enclosed in the outside at the edge that square opening raises up to the edge that extends below through well lid top female cap plate and a kind of square compound people's hole operation well lid of new structure, technical problem to be solved are provided; Can effectively prevent in the entering well of rainwater; Avoid the interior facility of well to make moist and get rusty, break down, thereby be suitable for practicality more.
On people's hole operation well lid, install hydraulic stem, can make things convenient for the unlatching of well lid top female cap plate, thereby be suitable for practicality more.
A purpose again of the utility model is, overcomes the defective of people's hole operation well existence of tank farm, existing petrol filling station, and a kind of square compound people's hole operation pit shaft and well lid of new structure are provided; Technical problem to be solved is to make it through adopting hot press moulding moulding process of SMC composite material; Make product have higher density, thereby promoted product strength, make product have good pressure resistance; Be difficult for deforming, thereby be suitable for practicality more.
The purpose of the utility model and to solve its technical problem be that technical scheme below adopting realizes.According to a kind of square compound people's hole operation pit shaft that the utility model proposes, it comprises four identical SMC composite material sheets, and four said SMC composite material sheets seal successively and are spliced to form said pit shaft.
The purpose of the utility model and solve its technical problem and can also adopt following technical measures to come further to realize.
Aforesaid square compound people's hole operation pit shaft; Wherein form the convex edge on the said SMC composite material sheet of protrusion surface respectively at the place, mating face of two adjacent said SMC composite material sheets, two adjacent said SMC composite material sheets are to connect through the securing member of anti-soil corrosion at place, said convex edge; And between the mating face of two adjacent said SMC composite material sheets, also be provided with seal.
Aforesaid square compound people's hole operation pit shaft, wherein said seal is a weather strip; The corresponding respectively groove that is provided with on the mating face of two adjacent said SMC composite material sheets, and in said groove, scribble a sealant layer, said weather strip is to be arranged on the said sealant layer, and fills up said groove.
Aforesaid square compound people's hole operation pit shaft, wherein said securing member comprises copper or stainless screw and nut; The said convex edge of said SMC composite material sheet is provided with installing hole, and said screw is to pass on the said convex edge of two adjacent said SMC composite material sheets the corresponding said installing hole that is provided with respectively with said nut cooperation and two adjacent said SMC composite material sheets are connected.
Aforesaid square compound people's hole operation pit shaft, wherein the said SMC composite material sheet of each sheet is the sheet material that the SMC composite material makes through a hot press moulding moulding.
Aforesaid square compound people's hole operation pit shaft, wherein the said SMC composite material sheet of each sheet all is that the bottom is wide, top is narrow, and between top and the bottom with the sheet material of cambered surface smooth connection; The top of the said people's hole operation pit shaft in sealing splicing back is formed closes up, and the cross section of said closing in be shaped as circular or square.
Aforesaid square compound people's hole operation pit shaft wherein on the barrel of the said people's hole operation pit shaft in sealing splicing back, offer the perforate that supplies pipeline to wear, and said perforate is connected with said seal for pipe joints.
The purpose of the utility model and solve its technical problem and also adopt following technical scheme to realize.According to a kind of square compound people's hole operation well lid that the utility model proposes, it comprises a well lid main body, said well lid main body have a square main cover plate and by four limits of said square main cover plate respectively to an enclosing portion that extends below; Wherein offer a square opening, on said square opening, be stamped a square cover plate, one side being articulated on the said square main cover plate of said square cover plate at the center of said square main body cover plate; Be formed with respectively to an edge that extends below on four limits of said square cover plate, the corresponding respectively edge that raises up that is formed with on four limits of said square opening, and the edge of said square cover plate is enclosed in the outside at the edge of said square opening; Wherein between said square cover plate and said square main cover plate, also be provided with a lockset; And also correspondingly on said square cover plate be provided with one and supply key to stretch into the lockhole of opening said lockset, wherein said lockset be at the edge that said square opening raises up and said square cover plate between the edge that extends below.
The purpose of the utility model and solve its technical problem and can also adopt following technical measures to come further to realize.
Aforesaid square compound people's hole operation well lid, wherein said well lid main body and said square cover plate are respectively the structure that the SMC composite material makes through a hot press moulding moulding.
Aforesaid square compound people's hole operation well lid, wherein be provided with in the lower edge of said enclosing portion can with the fixing fastening devices of people's hole operation well; By one side of said square main cover plate to the said enclosing portion that extends below than long to the said enclosing portion that extends below to the length that extends below by the said square main cover plate another side relative with it; And by four limits of said square main body cover plate respectively to the lower edge of the said enclosing portion that extends below in same plane, make said square main cover plate have a gradient with respect to this plane; The upper surface of said square main cover plate also is provided with guiding gutter; Said lockset is to be arranged on the protuberance and said square cover plate that one side of said square opening in said square opening, stretches out; Said lockhole is that corresponding said protuberance is arranged on the said square cover plate; The corresponding said protuberance in edge that said square opening raises up is formed with the groove that in said square opening, stretches out, and part is surrounded said protuberance; Wherein said lockset is surrounded to the edge that extends below by said groove and said square cover plate.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, square compound people's hole operation pit shaft of the utility model and well lid have advantage and beneficial effect at least:
1, the utility model can make things convenient for size of the organization production through adopting the pit shaft burst production field-installed mode of providing and delivering, and saves the logistics spending, on-the-spotly simultaneously installs fast and conveniently, can effectively shorten the construction period.
2, the utility model is enclosed in the outside at the edge that square opening raises up through well lid top female cap plate to the edge that extends below, and can effectively prevent in the entering well of rainwater, has avoided in the well facility to make moist and has got rusty, and breaks down.
3, the utility model is through adopting a hot press moulding moulding of SMC composite material manufacturing; Utilize the manufacture craft of exclusive characteristic of composite and the moulding of employing hot press moulding, make product have bigger density, promoted the intensity of product; Make product have good pressure resistance; Be difficult for deforming, produce the deficiency of seepage because of the surface settlement factor deforms easily after existing people's hole operation pit shaft is installed, guarantee the long-term stability of workmanship thereby can overcome.
In sum, the utility model relates to a kind of square compound people's hole operation pit shaft and well lid.Wherein square compound people's hole operation pit shaft and well lid all are to adopt the SMC composite material through a hot press moulding moulding manufacturing.Pit shaft is to be sealed successively by four identical SMC composite material sheets to be spliced.Well lid comprises well lid main body and square cover plate.Wherein square cover plate is to cover on the square opening that well lid main center offers, and articulates with the well lid main body on one side.Four limits at square cover plate and square opening also form downward, upwardly extending edge respectively, and with when square cover plate is covered on square opening, the downward edge of square cover plate is enclosed in the outside at the edge that square opening makes progress, and prevent that effectively rainwater from getting into.The utility model utilizes the exclusive characteristic of composite and adopts the manufacture craft of hot press moulding moulding, makes product have higher intensity, has solved the problem of existing glass fiber reinforced plastic shaft deformation.In addition, the utility model can make things convenient for size of the organization production through adopting the pit shaft burst production field-installed mode of providing and delivering, and saves the logistics spending, and the installation when making construction is fast and convenient, shortens the construction period thereby imitate.The utility model has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of manual, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Figure 1A is the sketch map of the square compound people's hole operation pit shaft of the utility model.
Figure 1B is the local enlarged diagram of Figure 1A.
Fig. 2 is the sketch map of the square compound people's hole operation well lid of the utility model.
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked; Below in conjunction with accompanying drawing and preferred embodiment; To square compound people's hole operation pit shaft and its specific embodiment of well lid, structure, characteristic and the effect thereof that proposes according to the utility model, specify as after.
Aforementioned and other technology contents, characteristics and the effect of relevant the utility model can clearly appear in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation through the specific embodiment; Should be to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the utility model; Yet the appended graphic usefulness that only provides reference and explanation is not to be used for the utility model is limited.
See also shown in Figure 1A and Figure 1B, Figure 1A is the sketch map of the square compound people's hole operation pit shaft of the utility model.Figure 1B is the local enlarged diagram of Figure 1A.Square compound people's hole operation pit shaft 10 of the utility model is to be sealed successively by four identical SMC composite material sheets 11 to be spliced.Wherein each sheet SMC composite material sheet 11 all is to adopt the SMC composite material to make through a hot press moulding moulding.
As shown in Figure 1, be formed with the convex edge 111 of protruding SMC composite material sheet 11 surfaces respectively at the place, mating face of the two adjacent SMC composite material sheets 11 that constitute square compound people's hole operation pit shaft 10.Two adjacent SMC composite material sheets 11 are that the securing member of 111 places through anti-soil corrosion connects in the convex edge.Simultaneously, between the mating face of the two adjacent SMC composite material sheets 11 that constitute square compound people's hole operation pit shaft 10, also be provided with seal.
In one embodiment, seal is a weather strip 12.The corresponding respectively groove 112 that is provided with on the mating face of the two adjacent SMC composite material sheets 11 that constitute square compound people's hole operation pit shaft 10; In groove 112, scribble a sealant layer; Weather strip 12 is to be arranged on the sealing glue-line; And fill up groove 112, can guarantee sealing fully after two SMC composite material sheets 11 connect thus.Securing member comprises copper or stainless screw 13 and nut 14.Wherein the convex edge 111 of SMC composite material sheet 11 is provided with installing hole 1111, and screw 13 is to pass on the convex edge 111 of two adjacent SMC composite material sheets 11 the corresponding installing hole 1111 that is provided with respectively with nut 14 cooperations and two adjacent SMC composite material sheets 11 are connected.When the utility model is installed at the scene, be in groove 112, to smear earlier fluid sealant, fill plug seal bar 12, and then twist good screw 13, so on-site consolidation is convenient and swift.
Wherein, the said SMC composite material sheet 11 of each sheet that constitutes square compound people's hole operation pit shaft 10 of the utility model can be the bottom broad, and top is narrower, and between top and the bottom with the sheet material of cambered surface smooth connection.After the sealing splicing, closing in can be formed at the top of people's hole operation pit shaft 10 like this, and the shape of the cross section of this closing in can be processed circular or square according to concrete needs.The base of the bottom of pit shaft 10 is to be tightly connected with oil tank top manhole cover mounting flange on every side.Wherein, the base of pit shaft 10 bottoms is to be connected through screw and mounting flange, and between the mating face of base and mounting flange, through fluid sealant sealing ring is set, to guarantee that connection closely.
On the barrel of the spliced square compound people's hole operation pit shaft 10 of sealing, can offer perforate 113, have the pipeline of confession to wear through the Tapper scene.Wherein, perforate 113 is to adopt the mode of fluid sealant and sealing ring to be tightly connected with pipeline, to guarantee the sealing of manhole shaft.
Seeing also shown in Figure 2ly, is the sketch map of the square compound people's hole operation well lid of the utility model.Square compound people's hole operation well lid 20 of the utility model comprises a well lid main body 21.This well lid main body 21 have a square main cover plate 211 and by four limits of square main cover plate 211 respectively to an enclosing portion 212 that extends below.Wherein offer square opening 2111, on square opening 2111, be stamped a square cover plate 22 at the center of square main body cover plate 211.One side of wherein square cover plate 22 is to be articulated on the square main cover plate 211, and for example square cover plate 22 can be to articulate through hinge and square main cover plate 211.Also form respectively to an edge 221 that extends below on four limits of square cover plate 22; And the edge 2113 that also corresponding respectively formation raises up on four limits of square opening 2111; And be covered on 2111 last times of square opening at square cover plate 22; The edge 221 of square cover plate 22 is the outsides that are enclosed in the edge 2113 of square opening 2111, guarantees that with this back rainwater can't get in people's hole operation well under square cover plate 22 lids.In addition; The utility model also is provided with a lockset (figure does not show) between square cover plate 22 and square main cover plate 211; And also correspondingly on square cover plate 22 be provided with one and supply key to stretch into the lockhole of opening this lockset, wherein this lockset be at edge 2113 that square opening 2111 raises up and square cover plate 22 between the edge that extends below 221.Preferable, above-mentioned lockset is arranged on the protuberance 2114 that one side of square opening 2111 in square opening 2111, stretches out and the square cover plate 22.And being corresponding protuberance 2114, above-mentioned lockhole is arranged on the square cover plate 22.Simultaneously corresponding protuberance 2114 also is formed with the groove 2115 that in square opening 2111, stretches out on the edge 2113 that square opening 2111 raises up; Part is surrounded protuberance 2114; Above-mentioned lockset is surrounded to the edge that extends below 221 by groove 2115 and square cover plate 22; Thereby guaranteed that the water that is advanced by the lockhole seepage also can be discharged to outside the well, and can not enter in people's hole operation well.
As shown in Figure 2; Be provided with enough and the fixing fastening devices 24 of people's hole operation well in the lower edge of the enclosing portion 212 of the square compound people's hole operation well lid 20 of the utility model, for example well lid 20 can be through the pre-buried screw matching and fixing in fastening devices 24 and people's hole operation well head ground on people's hole operation.The square compound people's hole operation well lid 20 of the utility model by one side of square main cover plate 211 to the enclosing portion that extends below 212 than long to the enclosing portion 212 that extends below to the length that extends below by square main cover plate 211 another side relative with it; And by four limits of square main body cover plate 211 respectively to the lower edge of the enclosing portion 212 that extends below in same plane; Thereby make square main cover plate 211 have a gradient, can make things convenient for the cleaning of rainwater etc. thus in use with respect to the plane at place, the lower edge of enclosing portion 212.Simultaneously, also guiding gutter 2112 can be set, to cooperate the cleaning of rainwater etc. at the upper surface of square main cover plate 211.
The well lid main body 21 and the said square cover plate 22 of the utility model can be to adopt the SMC composite material through a hot press moulding moulding manufacturing.
In addition, the utility model can also be provided with hydraulic stem between square cover plate 22 and square opening 2111, with the unlatching of convenient square cover plate 22.
The writing that is used to indicate oil product on square compound people's hole operation well lid 20 of the utility model; Like 93#, 97#; 0# etc.; Can be directly through on the hot press moulding when making well lid, the writing that presses by this way can or not be durable as the writing that glues card with the mode of paster as present easy fading with the writing of paint spraying usually very much yet.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Though the utility model discloses as above with preferred embodiment, yet be not that any professional and technical personnel of being familiar with is not in breaking away from the utility model technical scheme scope in order to qualification the utility model; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from the utility model technical scheme, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (10)
1. square compound people's hole operation pit shaft is characterized in that it comprises four identical SMC composite material sheets, and four said SMC composite material sheets seal successively and are spliced to form said pit shaft.
2. square compound people's hole operation pit shaft according to claim 1; It is characterized in that wherein forming respectively at the place, mating face of two adjacent said SMC composite material sheets the convex edge on the said SMC composite material sheet of protrusion surface, two adjacent said SMC composite material sheets are to connect through the securing member of anti-soil corrosion at place, said convex edge; And between the mating face of two adjacent said SMC composite material sheets, also be provided with seal.
3. square compound people's hole operation pit shaft according to claim 2 is characterized in that wherein said seal is a weather strip; The corresponding respectively groove that is provided with on the mating face of two adjacent said SMC composite material sheets, and in said groove, scribble a sealant layer, said weather strip is to be arranged on the said sealant layer, and fills up said groove.
4. square compound people's hole operation pit shaft according to claim 3 is characterized in that wherein said securing member comprises copper or stainless screw and nut; The said convex edge of said SMC composite material sheet is provided with installing hole, and said screw is to pass on the said convex edge of two adjacent said SMC composite material sheets the corresponding said installing hole that is provided with respectively with said nut cooperation and two adjacent said SMC composite material sheets are connected.
5. square compound people's hole operation pit shaft according to claim 1 is characterized in that wherein the said SMC composite material sheet of each sheet is the sheet material that the SMC composite material makes through a hot press moulding moulding.
6. square compound people's hole operation pit shaft according to claim 1 is characterized in that wherein the said SMC composite material sheet of each sheet all is that the bottom is wide, and top is narrow, and between top and the bottom with the sheet material of cambered surface smooth connection; The top of the said people's hole operation pit shaft in sealing splicing back is formed closes up, and the cross section of said closing in be shaped as circular or square.
7. square compound people's hole operation pit shaft according to claim 1 it is characterized in that wherein on the barrel of the said people's hole operation pit shaft in sealing splicing back, offering the perforate that supplies pipeline to wear, and said perforate is connected with said seal for pipe joints.
8. square compound people's hole operation well lid is characterized in that it comprises a well lid main body, said well lid main body have a square main cover plate and by four limits of said square main cover plate respectively to an enclosing portion that extends below; Wherein offer a square opening, on said square opening, be stamped a square cover plate, one side being articulated on the said square main cover plate of said square cover plate at the center of said square main body cover plate; Be formed with respectively to an edge that extends below on four limits of said square cover plate, the corresponding respectively edge that raises up that is formed with on four limits of said square opening, and the edge of said square cover plate is enclosed in the outside at the edge of said square opening; Wherein between said square cover plate and said square main cover plate, also be provided with a lockset; And also correspondingly on said square cover plate be provided with one and supply key to stretch into the lockhole of opening said lockset, wherein said lockset be at the edge that said square opening raises up and said square cover plate between the edge that extends below.
9. square compound people's hole operation well lid according to claim 8 is characterized in that wherein said well lid main body and said square cover plate are respectively the structure that the SMC composite material makes through a hot press moulding moulding.
10. square compound people's hole operation well lid according to claim 8, it is characterized in that wherein being provided with in the lower edge of said enclosing portion can with the fixing fastening devices of people's hole operation well; By one side of said square main cover plate to the said enclosing portion that extends below than long to the said enclosing portion that extends below to the length that extends below by the said square main cover plate another side relative with it; And by four limits of said square main body cover plate respectively to the lower edge of the said enclosing portion that extends below in same plane, make said square main cover plate have a gradient with respect to this plane; The upper surface of said square main cover plate also is provided with guiding gutter;
Said lockset is to be arranged on the protuberance and said square cover plate that one side of said square opening in said square opening, stretches out; Said lockhole is that corresponding said protuberance is arranged on the said square cover plate; The corresponding said protuberance in edge that said square opening raises up is formed with the groove that in said square opening, stretches out, and part is surrounded said protuberance; Wherein said lockset is surrounded to the edge that extends below by said groove and said square cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122410XU CN202530476U (en) | 2012-03-28 | 2012-03-28 | Square composite manhole operation pitshaft and manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122410XU CN202530476U (en) | 2012-03-28 | 2012-03-28 | Square composite manhole operation pitshaft and manhole cover |
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| Publication Number | Publication Date |
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| CN202530476U true CN202530476U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220122410XU Expired - Fee Related CN202530476U (en) | 2012-03-28 | 2012-03-28 | Square composite manhole operation pitshaft and manhole cover |
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| CN (1) | CN202530476U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047354B (en) * | 2014-07-10 | 2015-11-25 | 童中祥 | A kind of assembling general-purpose type fiber glass reinforced plastics inspection well |
| US10265890B2 (en) | 2015-04-10 | 2019-04-23 | Channell Commercial Corporation | Method of manufacturing a thermoset polymer utility vault lid |
| US10358285B2 (en) | 2015-04-10 | 2019-07-23 | Channell Commercial Corporation | Thermoset polymer utility vault lid |
| CN110258477A (en) * | 2019-06-28 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Water power surge shaft keeps off stone structure |
| CN112112196A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Electric smelting concatenation formula filling station manhole well |
-
2012
- 2012-03-28 CN CN201220122410XU patent/CN202530476U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047354B (en) * | 2014-07-10 | 2015-11-25 | 童中祥 | A kind of assembling general-purpose type fiber glass reinforced plastics inspection well |
| US10265890B2 (en) | 2015-04-10 | 2019-04-23 | Channell Commercial Corporation | Method of manufacturing a thermoset polymer utility vault lid |
| US10358285B2 (en) | 2015-04-10 | 2019-07-23 | Channell Commercial Corporation | Thermoset polymer utility vault lid |
| US11613052B2 (en) | 2015-04-10 | 2023-03-28 | Channell Commercial Corporation | Mold for manufacturing a fiber reinforced polymer utility vault lid |
| CN112112196A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Electric smelting concatenation formula filling station manhole well |
| CN110258477A (en) * | 2019-06-28 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Water power surge shaft keeps off stone structure |
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