CN113323021A - Cover plate formwork structure and cover plate manufacturing method - Google Patents
Cover plate formwork structure and cover plate manufacturing method Download PDFInfo
- Publication number
- CN113323021A CN113323021A CN202110435043.2A CN202110435043A CN113323021A CN 113323021 A CN113323021 A CN 113323021A CN 202110435043 A CN202110435043 A CN 202110435043A CN 113323021 A CN113323021 A CN 113323021A
- Authority
- CN
- China
- Prior art keywords
- enclosure
- cover plate
- barrier
- supporting rod
- structure according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009415 formwork Methods 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000004888 barrier function Effects 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention discloses a cover plate formwork structure and a cover plate manufacturing method, wherein the cover plate formwork structure comprises a base and comprises the following steps: s1, excavating the base meter shell to form a peripheral groove, forming a well head hole at the bottom and communicating the gallery; s2, curling the iron sheet to form an inner enclosure and an outer enclosure; s3, winding an iron wire outside the external enclosure to fix the shape; s4, cutting to form a support rod, and bending to form a right-angle structure; s5, respectively pressing the two ends of the supporting rod against the inner side surface of the outer enclosure and the inner surface of the inner enclosure; s6, forming a template structure; s7, pouring concrete in the empty groove between the inner surrounding barrier and the outer surrounding barrier, and tamping and solidifying; s8, curing the concrete; s9, cover plate manufacturing can be completed, the iron sheet is curled to manufacture the inner surrounding baffle and the outer surrounding baffle, the bending smoothness can be guaranteed, different lengths can be selected according to the aperture size to bend, formwork supporting manufacturing is facilitated, construction pouring is facilitated, and safe use is facilitated.
Description
Technical Field
The invention relates to the technical field of cover plates, in particular to a cover plate formwork structure and a cover plate manufacturing method.
Background
In present social life, the well head position of some sewer and the well head of cable pit all need lay the installation apron, guarantee the safety in utilization, conveniently open simultaneously and clear up the maintenance to inside.
However, when the existing wellhead cover plate is manufactured, a wood plate is mostly used for formwork support in the adopted manufacturing method, so that the structural stability is poor, the leakage of the wellhead is easy to break away, the wellhead can not well fit with a round hole structure, and the template of the fixed structure can not be adopted for building and supporting due to different radian curvatures of the wellhead in different sizes, so that the quality of pouring and manufacturing is poor, and the use stability and the protection safety are affected, therefore, a new structure and a new method are needed to be provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a cover plate formwork structure and a cover plate manufacturing method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cover plate formwork structure and a cover plate manufacturing method comprise a base, and the manufacturing method comprises the following steps:
s1, excavating the base meter shell to form a peripheral groove, forming a well head hole at the bottom and communicating the gallery;
s2, curling the iron sheet to form an inner surrounding barrier and an outer surrounding barrier, inserting the inner surrounding barrier into the wellhead hole, and inserting the outer surrounding barrier into the peripheral groove;
s3, winding an iron wire outside the external enclosure to fix the shape;
s4, cutting to form a support rod, bending to form a right-angle structure, and vertically inserting the support rod between the outer enclosure and the inner enclosure;
s5, respectively pressing the two ends of the supporting rod against the inner side surface of the outer enclosure and the inner surface of the inner enclosure;
s6, bending the steel bars to form an annular structure, pressing the annular steel bars to the surface of the support rod, and binding and positioning the annular steel bars by using iron wires to form a template structure;
s7, pouring concrete in the empty groove between the inner surrounding barrier and the outer surrounding barrier, and tamping and solidifying;
s8, curing the concrete for 15 days after 7 days;
s9, detecting the concrete after the maintenance is finished, removing the internal enclosing barrier and the external enclosing barrier after the concrete is qualified, and embedding the support rods and the annular steel bars into the concrete to finish the manufacture of the cover plate.
Preferably, the surface of base is equipped with peripheral groove, the bottom center department in peripheral groove is equipped with the well head hole, the side slidable mounting in well head hole has inside to enclose the fender, the side slidable mounting in peripheral groove has the outside to enclose the fender, the outside encloses the one end side of fender and is fixed the winding and has the binding iron wire ring.
Preferably, the side surfaces of the inner surrounding barrier and the outer surrounding barrier are fixedly connected with supporting rods, the surface of each supporting rod is supported and connected to the bottom of the peripheral groove,
preferably, the surface of the supporting rod is fixedly connected with an annular steel bar, the surface of the annular steel bar is fixedly wound with a binding strip, and the surface of the binding strip is fixedly bound on the surface of the supporting rod.
Preferably, the inner surrounding baffle and the outer surrounding baffle are both formed into a drum structure by winding iron sheets, and the inner end and the outer end are both provided with smooth transition edges.
Preferably, one end of the supporting rod is provided with a short joint, and the surface of the short joint is tightly connected with the surface of the internal enclosure.
Preferably, the other end of the support rod is provided with a long joint, and the surface of the long joint is tightly connected to one side surface of the external enclosure.
Preferably, twelve of the support rod indications are uniformly connected to the side surface of the outer enclosure at equal angles.
Preferably, the ring-shaped reinforcing bars indicate three layers and are connected to one side surface of the support rod at equal intervals.
According to the cover plate formwork structure and the cover plate manufacturing method, the inner surrounding baffle and the outer surrounding baffle are manufactured by curling iron sheets, so that the smoothness of bending can be guaranteed, different lengths can be selected according to the aperture size for bending, the accuracy of fitting the position of a well mouth is guaranteed, the adaptability is high, meanwhile, a frame structure can be formed by combining the bent support rods of the right-angle structure and the annular steel bars, the inner surrounding baffle and the outer surrounding baffle are supported and positioned, an inner framework can be formed during pouring, the stability of a formwork and the structural strength of a cover plate are effectively improved, the formwork supporting manufacturing is facilitated, the construction and pouring are facilitated, and the safe use is facilitated.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the joint of the support rods of FIG. 1 according to the present invention;
figure 3 is a schematic cross-sectional view of the curling of the inner and outer barriers of the present invention.
In the figure: 1 base, 11 peripheral grooves, 12 well openings, 13 internal enclosing barriers, 14 external enclosing barriers, 15 binding iron wire rings, 16 supporting rods, 17 annular reinforcing steel bars, 18 binding strips, 19 smooth transition edges, 2 short joints and 21 long joints.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A cover plate formwork structure and a cover plate manufacturing method comprise a base 1, and the manufacturing method comprises the following steps:
s1, excavating the base meter shell to form a peripheral groove, forming a well head hole at the bottom and communicating the gallery;
s2, curling the iron sheet to form an inner surrounding barrier and an outer surrounding barrier, inserting the inner surrounding barrier into the wellhead hole, and inserting the outer surrounding barrier into the peripheral groove;
s3, winding an iron wire outside the external enclosure to fix the shape;
s4, cutting to form a support rod, bending to form a right-angle structure, and vertically inserting the support rod between the outer enclosure and the inner enclosure;
s5, respectively pressing the two ends of the supporting rod against the inner side surface of the outer enclosure and the inner surface of the inner enclosure;
s6, bending the steel bars to form an annular structure, pressing the annular steel bars to the surface of the support rod, and binding and positioning the annular steel bars by using iron wires to form a template structure;
s7, pouring concrete in the empty groove between the inner surrounding barrier and the outer surrounding barrier, and tamping and solidifying;
s8, curing the concrete for 15 days after 7 days;
s9, detecting the concrete after the maintenance is finished, removing the internal enclosing barrier and the external enclosing barrier after the concrete is qualified, and embedding the support rods and the annular steel bars into the concrete to finish the manufacture of the cover plate.
Preferably, the surface of the base 1 is provided with a peripheral groove 11, the bottom center of the peripheral groove 11 is provided with a wellhead hole 12, the side surface of the wellhead hole 12 is slidably provided with an internal enclosure 13, the side surface of the peripheral groove 11 is slidably provided with an external enclosure 14, and one end side surface of the external enclosure 14 is fixedly wound with a binding iron wire ring 15.
Preferably, a support bar 16 is fixedly connected to the side surfaces of the inner enclosure 13 and the outer enclosure 14, the surface of the support bar 16 is supported and connected to the bottom position of the peripheral groove 11,
preferably, the surface of the supporting rod 16 is fixedly connected with an annular steel bar 17, the surface of the annular steel bar 17 is fixedly wound with a binding strip 18, the surface of the binding strip 18 is fixedly bound on the surface of the supporting rod 16, a framework structure can be bound, and the safety and stability of the supporting structure are improved.
Preferably, the inner surrounding baffle 13 and the outer surrounding baffle 14 are both formed in a winding drum structure by winding iron sheets, and the inner end and the outer end are both provided with smooth transition edges 19, so that the curling ends can be connected and transitioned smoothly, and the stability of circumferential bending is ensured.
Preferably, one end of the support rod 16 is provided with a short joint 2, the surface of the short joint 2 is tightly connected with the surface of the inner surrounding barrier 13, the inner surrounding barrier 13 can be tightly pressed from the outside, the loosening is avoided, and the stability of the curling structure is improved.
Preferably, the other end of the support rod 16 is provided with a long joint 21, and the surface of the long joint 21 is tightly connected to one side surface of the external enclosure 14, so that the external enclosure 14 can be tightly pressed from the inside, thereby ensuring the structural stability and improving the pouring safety.
Preferably, twelve support rods 16 are indicated and are uniformly connected at equal angles to the sides of the outer enclosure 14.
Preferably, the ring-shaped reinforcing bars 17 indicate three layers and are coupled to one side surface of the support bar 16 at equal intervals.
Claims (9)
1. A cover plate formwork structure and a cover plate manufacturing method comprise a base (1), and are characterized in that: the manufacturing method comprises the following steps:
s1, excavating the base meter shell to form a peripheral groove, forming a well head hole at the bottom and communicating the gallery;
s2, curling the iron sheet to form an inner surrounding barrier and an outer surrounding barrier, inserting the inner surrounding barrier into the wellhead hole, and inserting the outer surrounding barrier into the peripheral groove;
s3, winding an iron wire outside the external enclosure to fix the shape;
s4, cutting to form a support rod, bending to form a right-angle structure, and vertically inserting the support rod between the outer enclosure and the inner enclosure;
s5, respectively pressing the two ends of the supporting rod against the inner side surface of the outer enclosure and the inner surface of the inner enclosure;
s6, bending the steel bars to form an annular structure, pressing the annular steel bars to the surface of the support rod, and binding and positioning the annular steel bars by using iron wires to form a template structure;
s7, pouring concrete in the empty groove between the inner surrounding barrier and the outer surrounding barrier, and tamping and solidifying;
s8, curing the concrete for 15 days after 7 days;
s9, detecting the concrete after the maintenance is finished, removing the internal enclosing barrier and the external enclosing barrier after the concrete is qualified, and embedding the support rods and the annular steel bars into the concrete to finish the manufacture of the cover plate.
2. A cover supporting structure according to claim 1, wherein: the surface of base (1) is equipped with peripheral groove (11), the bottom center department in peripheral groove (11) is equipped with well head hole (12), the side slidable mounting of well head hole (12) has inside to enclose fender (13), the side slidable mounting of peripheral groove (11) has the outside to enclose fender (14), the outside encloses the fixed winding in one end side that keeps off (14) and has binded iron wire ring (15).
3. A cover supporting structure according to claim 2, wherein: the side surfaces of the inner surrounding barrier (13) and the outer surrounding barrier (14) are fixedly connected with a supporting rod (16), and the surface of the supporting rod (16) is supported and connected to the bottom of the peripheral groove (11).
4. A cover supporting structure according to claim 3, wherein: the surface of the supporting rod (16) is fixedly connected with an annular steel bar (17), the surface of the annular steel bar (17) is fixedly wound with a binding strip (18), and the surface of the binding strip (18) is fixedly bound on the surface of the supporting rod (16).
5. A cover supporting structure according to claim 2, wherein: the inner enclosing barrier (13) and the outer enclosing barrier (14) are both formed into a drum structure by adopting iron sheet winding, and the inner end and the outer end are both provided with smooth transition edges (19).
6. A cover supporting structure according to claim 3, wherein: one end of the supporting rod (16) is provided with a short joint (2), and the surface of the short joint (2) is tightly connected to the surface of the internal enclosure (13).
7. A cover supporting structure according to claim 3, wherein: the other end of the supporting rod (16) is provided with a long joint (21), and the surface of the long joint (21) is tightly connected to the surface of one side of the external enclosure (14).
8. The cover supporting structure according to claim 4, wherein: twelve support rods (16) are indicated, and are uniformly connected to the side surface of the outer enclosure (14) at equal angles.
9. The cover supporting structure according to claim 4, wherein: the annular reinforcing steel bars (17) indicate three layers and are connected to one side surface of the supporting rod (16) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435043.2A CN113323021A (en) | 2021-04-22 | 2021-04-22 | Cover plate formwork structure and cover plate manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435043.2A CN113323021A (en) | 2021-04-22 | 2021-04-22 | Cover plate formwork structure and cover plate manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113323021A true CN113323021A (en) | 2021-08-31 |
Family
ID=77414972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110435043.2A Pending CN113323021A (en) | 2021-04-22 | 2021-04-22 | Cover plate formwork structure and cover plate manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113323021A (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB165466A (en) * | 1919-07-21 | 1921-07-07 | William Welham Clarke | Improvements in the in situ method of manufacturing dwelling-houses and like structures built mainly of concrete or similar material and in apparatus employed therein |
| CN101718101A (en) * | 2009-11-19 | 2010-06-02 | 济南城建工程公司 | Concrete integral pouring construction method and device for road inspection well |
| CN103790177A (en) * | 2014-01-15 | 2014-05-14 | 中色十二冶金建设有限公司 | Formwork construction method for small type circular device foundation |
| CN204249054U (en) * | 2014-10-21 | 2015-04-08 | 上海建工材料工程有限公司 | A kind of making mould of concrete prefabricated inspection shaft |
| WO2015076680A1 (en) * | 2013-11-21 | 2015-05-28 | Basal As | Method and device for providing pipe joint in concrete wall |
| CN104775451A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Rapid disposal method for diseases near road manhole |
| CN205662948U (en) * | 2016-04-08 | 2016-10-26 | 闫振滨 | Cold area road surface manhole cover |
| CN206385532U (en) * | 2016-12-07 | 2017-08-08 | 山西省第三建筑工程公司 | It is a kind of to be used for the piling template of CFG |
| CN109098207A (en) * | 2018-09-21 | 2018-12-28 | 中建局集团第二建筑有限公司 | A kind of prefabricated combustion gas cabin of underground pipe gallery, template system and construction method |
| CN109339113A (en) * | 2018-11-14 | 2019-02-15 | 微山宏瑞电力科技有限公司 | A kind of new type of safe well lid with enclosing function |
| CN109610354A (en) * | 2018-12-13 | 2019-04-12 | 四川交投建设工程股份有限公司 | Cast-in-place slab culvert template system and the cast-in-place slab culvert template system construction method of application |
| CN109702867A (en) * | 2019-01-07 | 2019-05-03 | 五冶集团上海有限公司 | A kind of manhole cover plate formwork erecting structure and well lid board manufacturing method |
| CN209114507U (en) * | 2018-11-12 | 2019-07-16 | 武汉钟鑫市政建设工程有限公司 | A kind of inspection shaft reinforcing concrete placings combined steel |
| CN110318495A (en) * | 2019-07-10 | 2019-10-11 | 中国矿业大学 | One kind can assembled permanent formwork overlapping FRP tendons seawater sea sand Recycled Concrete Beams and preparation method thereof |
| CN210791417U (en) * | 2019-07-04 | 2020-06-19 | 湖南省第五工程有限公司 | Apron steel form with hole |
| CN211173215U (en) * | 2019-11-13 | 2020-08-04 | 青岛长永机械工程有限公司 | Disposable cast-in-place caisson building template supporting device with elevator additionally arranged for existing building |
| CN112227502A (en) * | 2020-10-28 | 2021-01-15 | 中建七局安装工程有限公司 | Drainage inspection well construction method |
| CN212656263U (en) * | 2020-06-05 | 2021-03-05 | 宁夏第三建筑有限公司 | Be used for inspection shaft pit shaft cast in situ concrete inner formword |
-
2021
- 2021-04-22 CN CN202110435043.2A patent/CN113323021A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB165466A (en) * | 1919-07-21 | 1921-07-07 | William Welham Clarke | Improvements in the in situ method of manufacturing dwelling-houses and like structures built mainly of concrete or similar material and in apparatus employed therein |
| CN101718101A (en) * | 2009-11-19 | 2010-06-02 | 济南城建工程公司 | Concrete integral pouring construction method and device for road inspection well |
| WO2015076680A1 (en) * | 2013-11-21 | 2015-05-28 | Basal As | Method and device for providing pipe joint in concrete wall |
| CN103790177A (en) * | 2014-01-15 | 2014-05-14 | 中色十二冶金建设有限公司 | Formwork construction method for small type circular device foundation |
| CN104775451A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Rapid disposal method for diseases near road manhole |
| CN204249054U (en) * | 2014-10-21 | 2015-04-08 | 上海建工材料工程有限公司 | A kind of making mould of concrete prefabricated inspection shaft |
| CN205662948U (en) * | 2016-04-08 | 2016-10-26 | 闫振滨 | Cold area road surface manhole cover |
| CN206385532U (en) * | 2016-12-07 | 2017-08-08 | 山西省第三建筑工程公司 | It is a kind of to be used for the piling template of CFG |
| CN109098207A (en) * | 2018-09-21 | 2018-12-28 | 中建局集团第二建筑有限公司 | A kind of prefabricated combustion gas cabin of underground pipe gallery, template system and construction method |
| CN209114507U (en) * | 2018-11-12 | 2019-07-16 | 武汉钟鑫市政建设工程有限公司 | A kind of inspection shaft reinforcing concrete placings combined steel |
| CN109339113A (en) * | 2018-11-14 | 2019-02-15 | 微山宏瑞电力科技有限公司 | A kind of new type of safe well lid with enclosing function |
| CN109610354A (en) * | 2018-12-13 | 2019-04-12 | 四川交投建设工程股份有限公司 | Cast-in-place slab culvert template system and the cast-in-place slab culvert template system construction method of application |
| CN109702867A (en) * | 2019-01-07 | 2019-05-03 | 五冶集团上海有限公司 | A kind of manhole cover plate formwork erecting structure and well lid board manufacturing method |
| CN210791417U (en) * | 2019-07-04 | 2020-06-19 | 湖南省第五工程有限公司 | Apron steel form with hole |
| CN110318495A (en) * | 2019-07-10 | 2019-10-11 | 中国矿业大学 | One kind can assembled permanent formwork overlapping FRP tendons seawater sea sand Recycled Concrete Beams and preparation method thereof |
| WO2021003860A1 (en) * | 2019-07-10 | 2021-01-14 | 中国矿业大学 | Assembly-type permanent formwork superimposed frp rib seawater and sea sand recycled concrete beam and manufacturing method therefor |
| CN211173215U (en) * | 2019-11-13 | 2020-08-04 | 青岛长永机械工程有限公司 | Disposable cast-in-place caisson building template supporting device with elevator additionally arranged for existing building |
| CN212656263U (en) * | 2020-06-05 | 2021-03-05 | 宁夏第三建筑有限公司 | Be used for inspection shaft pit shaft cast in situ concrete inner formword |
| CN112227502A (en) * | 2020-10-28 | 2021-01-15 | 中建七局安装工程有限公司 | Drainage inspection well construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104153493A (en) | Concrete shear wall structure based on 3D printing and construction method of concrete shear wall structure | |
| CN106223607B (en) | A kind of hollow column template and its construction method of single mode construction | |
| CN212358846U (en) | Assembled concrete composite beam | |
| CN213233888U (en) | Assembled partial cavity shear wall and connecting node | |
| CN103485370B (en) | A kind of concrete construction control method preventing wallboard harmful cracks | |
| CN104153573B (en) | V-type cylinder concrete pour mould and construction method | |
| CN113323021A (en) | Cover plate formwork structure and cover plate manufacturing method | |
| CN111456105B (en) | Construction method of post-pouring belt of underground garage bottom plate | |
| CN211171973U (en) | Positioning protection device for assisting in lowering of pile foundation reinforcement cage | |
| CN210483035U (en) | Reserved sleeve die for reserved hole of prefabricated laminated slab | |
| CN112160639A (en) | Telegraph pole and production process thereof | |
| CN106836948B (en) | A kind of construction technology of reinforced concrete structure | |
| CN207348463U (en) | A kind of pulling-on piece component for aluminum alloy mould plate | |
| CN111441239B (en) | Prefabricated cover beam prestress deep-buried anchor sleeve and installation process thereof | |
| CN212176280U (en) | Device for forming multi-process integrated splicing-free light wall and wall | |
| CN211135503U (en) | Casting thermosetting resin sand equipment based on green production | |
| CN107355031A (en) | A kind of exterior finish modeling structure of two-sided prefabricated overlapping wall and preparation method thereof | |
| CN107322757B (en) | Manufacturing die and manufacturing method of prefabricated grouting special-shaped root pile | |
| CN204081482U (en) | V-type cylinder transposition section concreting mould | |
| CN113513092A (en) | Civil engineering waterproof structure and construction method thereof | |
| CN214884883U (en) | Novel steel bar frame cushion block structure | |
| CN207469533U (en) | A kind of exterior finish modeling structure of two-sided prefabricated overlapping wall | |
| CN211594789U (en) | Road and bridge component hoisting assembly | |
| CN213204670U (en) | Can have enough to meet need full assembled concrete and face to build prefabricated corridor board for board room | |
| CN213837814U (en) | Frock and coincide floor are reserved in construction of coincide floor bearing diagonal circle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210831 |
|
| RJ01 | Rejection of invention patent application after publication |