CN104908150B - A kind of piping shaft making template and the method based on factorial praluction piping shaft - Google Patents
A kind of piping shaft making template and the method based on factorial praluction piping shaft Download PDFInfo
- Publication number
- CN104908150B CN104908150B CN201510338057.7A CN201510338057A CN104908150B CN 104908150 B CN104908150 B CN 104908150B CN 201510338057 A CN201510338057 A CN 201510338057A CN 104908150 B CN104908150 B CN 104908150B
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- China
- Prior art keywords
- template
- brick
- piping shaft
- exterior sheathing
- frame
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Classifications
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
-
- 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
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/027—The bottom made of prefabricated segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (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)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Template is made the present invention relates to a kind of piping shaft of factorial praluction and based on its piping shaft production method, it includes concrete floor, build the first brick template in the concrete bottom plate top surface, it builds on the concrete floor and being set to the second brick template of the described first brick template periphery, it is installed on the described first brick template top surface and the inner template being aligned with its lateral surface and the exterior sheathing for being installed on the second brick template top surface and being aligned with its medial surface, it is embedded with an at least overflow pipe in the first brick template and the second brick template, the inner template inner support has broad-adjustable first formed frame of multiple tracks.It need not make at the construction field (site), be transported to installation place after its coagulation forming, improve producing efficiency and project progress.
Description
Technical field
The invention belongs to urban construction fields, are related to a kind of making template of piping shaft, and in particular to a kind of factory's metaplasia
The piping shaft of production makes template and the piping shaft production method based on it.
Background technology
Pipeline used in the drainage system of certain municipal conveyance system is de315 UPVC, 1224 meters of solid wall pipe overall length, inspection shaft
For square well, wherein specification is totally 109 of 600 × 600mm, and specification is totally 4, well wall thickness 15cm of 1000 × 1000mm,
85~100cm of well depth.Municipally traditional inspection shaft is formed using 85 brick masonries, and due to its poor sealing, infiltration is asked
Topic is also following, directly affects the construction quality of municipal works.And the design requirement of client is poured using concrete cast-in-situ mode
Build piping shaft, the not similar construction experience of project management department.Now according to the construction matter of the complete A section concrete piping shafts of this engineering construction
Amount is checked, is spot-check 400 points altogether, wherein not conforming to lattice point 67, qualification rate 83.25%, and is wherein led to piping shaft
It is unqualified most important the reason is that " borehole wall poor flatness " and " wellbore geometry deformation ".Most of all, existing pipeline
Well needs the site operation in conveyance system, and occupied space is big, low production efficiency, and needs to provide sufficient concrete setting
Time and curing time, cause project progress to be delayed significantly, while in order to improve the construction qualification rate of piping shaft, for " pit shaft
Geometric dimension deforms " the reason of, it needs to design the making template that piping shaft can be factory produced and prevent its geometry deformation.
Invention content
A kind of piping shaft making mould of factorial praluction is provided the invention aims to overcome the deficiencies in the prior art
Plate.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of piping shaft making template, it includes concrete
Bottom plate builds the first brick template in the concrete bottom plate top surface, builds on the concrete floor and being set to described the
Second brick template of one brick template periphery, the internal model for being installed on the described first brick template top surface and being aligned with its lateral surface
Plate and the exterior sheathing for being installed on the second brick template top surface and being aligned with its medial surface, the first brick template and described
An at least overflow pipe is embedded in two brick templates, the inner template inner support has broad-adjustable first formed frame of multiple tracks.
Optimally, the first connecting tube that first formed frame is oppositely arranged by two and the second company that two are oppositely arranged
It takes over, or is surrounded by four second connecting tubes, every second connecting tube includes at least two short tubes, is fixed on the short tube
It the link block of end and is arranged in the link block for connecting the bolt of the short tube.
Further, the connection of the junction or second connecting tube of first connecting tube and second connecting tube
Place outside is fixed with the steel plate angle for resisting the inner template.
Optimally, the described second brick template top surface, which is also built, has the mortar enclosed outside the exterior sheathing to block frame.
Further, the exterior sheathing outer hoop is equipped with the second formed frame at least surrounded together by more steel pipes.
Optimally, the inner template includes the first glued mould of polylith head and the tail splicing and glued for resisting described first
More first reinforcements of template are stupefied；The exterior sheathing includes the second glued mould of polylith head and the tail splicing and for resisting described the
More second reinforcements of two glued moulds are stupefied.
Another object of the present invention is to provide a kind of piping shaft production method, which is based on above-mentioned factory's metaplasia
The piping shaft of production makes template, and it includes the following steps：
(a) according to piping shaft size respective production concrete floor；
(b) it is built under the first brick template lower part and the second brick template with brick on the concrete floor
Portion, and load sets an at least overflow pipe on it, continues to be built to higher than the overflow pipe with brick and forms first brick
Template and the second brick template are built, it is with cement mortar that brick and overflow pipe junction closing is closely knit；
(c) installing the inner template in the described first brick die head makes itself and the described first brick template lateral surface pair
Together, and in the inner template the first formed frame of multiple tracks is installed from bottom to top；Institute is installed in the described second brick die head again
Stating exterior sheathing makes it be aligned to form template with the described second brick template medial surface；
(d) concrete is poured into a mould into template makes its coagulation forming, removes exterior sheathing and turns the first sizing width of frame down and tear open
Except inner template；
(e) it is sapped a gallery according to well size at engineering construction, the piping shaft of coagulation forming is transported to engineering construction
It is installed.
Optimally, in the step (c), wooden frame first is made according to its size before the exterior sheathing is installed, then along wood
Outer frame side surrounding rendering concrete mortar forms the mortar enclosed outside the exterior sheathing and blocks frame；The exterior sheathing is being installed
Afterwards, the second formed frame described in multiple tracks is arranged outside it.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：Factory's metaplasia of the present invention
The piping shaft of production makes template, and an at least overflow pipe is on the one hand embedded in the first brick template and the second brick template,
To be correspondingly formed overflow launder, the conducting of fluid is realized；Another aspect inner template inner support has multiple tracks broad-adjustable first fixed
Type frame can both be provided with the support of power to inner template, and to prevent piping shaft geometric dimension from deforming, it is fixed can also to adjust first
The width of type frame, to quickly dismantle inner template；And need not make at the construction field (site), peace is transported to after its coagulation forming
At dress, producing efficiency and project progress are improved.
Description of the drawings
Attached drawing 1 is the sectional view that inventive pipeline well makes template；
Attached drawing 2 is the vertical view that inventive pipeline well makes template；
Attached drawing 3 is the part-structure schematic diagram that inventive pipeline well makes template；
Attached drawing 4 is the structural schematic diagram that inventive pipeline well makes the first formed frame of template；
Attached drawing 5 is the usage state diagram that inventive pipeline well makes template；
Wherein, 1, concrete floor；2, substrate；3, the first brick template；4, the second brick template；5, overflow pipe；6, interior
Template；61, the first glued mould；62, the first reinforcement is stupefied；7, exterior sheathing；71, the second glued mould；72, the second reinforcement is stupefied；8、
Mortar blocks frame；9, the first formed frame；90, the first connecting tube；91, the second connecting tube；911, short tube；92, link block；93, spiral shell
Bolt；94, steel plate angle；10, the second formed frame.
Specific implementation mode
The preferred embodiment of the invention is described in detail below in conjunction with attached drawing：
Piping shaft as shown in Figures 1 to 5 makes template, it include mainly concrete floor 1, overflow pipe 5, inner template 6,
Exterior sheathing 7 and the first formed frame 9.
Wherein, concrete floor 1 is built by concrete, and height can be set according to actual needs, in this implementation
In example, about 10cm high.Its bottom is equipped with area and is more than its concrete substrate 2；Or substrate 2 and concrete floor 1 one
Body is formed, i.e., 1 side bottom of concrete floor forms the outer eaves portion of protrusion；Important is outer eaves portion or substrates 2 for needs simultaneously
Enough sizes are preferably stayed to lay bricks in part beyond concrete floor 1.First brick template 3 is built in the top surface of concrete floor 1, at this
In embodiment, the first brick template 3 is in square hollow column structure (being surrounded by four side walls), is located at concrete floor 1 and pushes up
Face centre.Second brick template 4 is also built on concrete floor 1, its correspondence is arranged concentrically in the outer of the first brick template 3
It encloses；If concrete floor 1 has the outer eaves portion of protrusion, it can be built in outer eaves portion.Inner template 6 is also in square hollow
Column structure, it is mounted on the top surface of the first brick template 3, and lateral surface is aligned with the lateral surface of the first brick template 3.At this
In embodiment, inner template 6 includes that the first glued mould 61 that four pieces of head and the tail splice and Duo Gen first reinforce stupefied 62；First reinforcement is stupefied
62 are fixed in the square column that the first glued mould 61 surrounds, and ensure it when pouring piping shaft for resisting the first glued mould 61
It will not be deformed.Every piece of first glued mould 61 be corresponding with more first reinforce stupefied 62, it is specific first reinforce stupefied 62 quantity,
Materials and spacing arrangement can be calculated according to concrete lateral pressure.Exterior sheathing 7 is mounted on the top surface of the second brick template 4,
Its medial surface is aligned with the medial surface of the second brick template 4.In the present embodiment, exterior sheathing 7 includes four pieces of head and the tail splicings
Second glued mould 71 and Duo Gen second reinforce stupefied 72；Second, which reinforces stupefied 72, is fixed on the square column that the second glued mould 71 surrounds
Outside, ensure that it will not be deformed when pouring piping shaft for resisting the second glued mould 71.Every piece of second glued mould 71
It is corresponding with more second and reinforces stupefied 72, the specific second quantity, materials and spacing arrangement for reinforcing stupefied 72 can be according to concrete side
Pressure is calculated；Exterior sheathing 7 can be supported in diagonal brace on ground.Overflow pipe 5 at least one, they are embedded in the first brick
It builds on template 3 and 4 corresponding side wall of the second brick template；In the present embodiment, overflow pipe 5 has two, they are correspondingly arranged
And axial line overlaps.
First formed frame 9 has multiple tracks, their width are adjustable and are supported in inner template 6, when in use can be to inner template 6
Strong support is provided, to prevent piping shaft geometric dimension from deforming；It after use can be by turning its width down, thus by it
Fast quick-detach.In the present embodiment, what the first formed frame 9 is oppositely arranged by two the first connecting tube 90 and two were oppositely arranged
Second connecting tube 91 surrounds, or is surrounded by four second connecting tubes (91).Every second connecting tube 91 includes short tube 911, connection
Block 92 and bolt 93, short tube 911 at least two；Junction (end) in the second connecting tube of same root 91 between short tube 911
It is fixed with link block 92, link block 92 is the steel plate of 6mm thickness, and opens up bolt hole on link block 92.Using the full tooth of φ 16
Bolt is adjusted, and first adjusts the first formed frame 9 when installation and arrives design size, is then put in again fixed among inner template 6；When
When form removable, first adjusting bolt 93 is loosened, you can is drawn off the first formed frame 9 easily.The corner in 91 outside of connecting tube
It is fixed with the steel plate angle 94 for resisting inner template 6, so that it is guaranteed that making the support strength of template, improves the piping shaft matter poured
Amount.The number of first formed frame 9 is preferably even number, preferably in pairs, two 9 width adjustings of the first formed frame in every group
Direction it is different, i.e., two the first formed frames, the 9 width adjusting direction in every group is perpendicular.
In the present embodiment, 4 top surface of the second brick template, which is also built, has the mortar enclosed outside exterior sheathing 7 to block frame 8, utilizes
Mortar blocks the Founder and geometric dimension that frame 8 ensures exterior sheathing 7.7 outer hoop of exterior sheathing is equipped at least to be surrounded by more steel pipes together
The second formed frame 10, further increase the piping shaft quality poured, improve its upright degree and ensure the steady of its geometric dimension
It is fixed.
Piping shaft based on above-mentioned factorial praluction makes the piping shaft production method of template, it includes the following steps：
(a) according to piping shaft size respective production concrete floor；
(b) it is built under the first brick template lower part and the second brick template with brick on the concrete floor
Portion, and load sets an at least overflow pipe on it, continues to be built to higher than the overflow pipe with brick and forms first brick
Template and the second brick template are built, it is with cement mortar that brick and overflow pipe junction closing is closely knit；
(c) installing the inner template in the described first brick die head makes itself and the described first brick template lateral surface pair
Together, and in the inner template the first formed frame of multiple tracks is installed from bottom to top；Institute is installed in the described second brick die head again
Stating exterior sheathing makes it be aligned to form template with the described second brick template medial surface；
(d) concrete is poured into a mould into template makes its coagulation forming, removes exterior sheathing and turns the first sizing width of frame down and tear open
Except inner template；
(e) it is sapped a gallery according to well size at engineering construction, the piping shaft of coagulation forming is transported to engineering construction
It is installed.
In the present embodiment, in the step (c), wooden frame first is made according to its size before the exterior sheathing is installed, with
The mortar outside the exterior sheathing is enclosed along surrounding rendering concrete mortar formation on the outside of wooden frame block frame afterwards；Described in installation
After exterior sheathing, it is arranged the second formed frame described in multiple tracks outside it, can ensure that dimensioning does not occur for the piping shaft poured in this way
Very little deformation.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of piping shaft makes template, it is characterised in that：It includes the concrete substrate for carrying concrete floor (1)
(2), it builds the first brick template (3) in the concrete floor (1) top surface, build on the concrete floor (1) and being arranged
In the described first brick template (3) periphery the second brick template (4), be installed on the described first brick template (3) top surface and with
The inner template (6) and be installed on the second brick exterior sheathing template (4) top surface and be aligned with its medial surface that its lateral surface is aligned
(7), it is embedded with an at least overflow pipe (5) in the described first brick template (3) and the second brick template (4), it is described interior
Template (6) inner support has broad-adjustable first formed frame (9) of multiple tracks, and second brick template (4) top surface, which also builds to have to enclose, to be set
Frame (8) is blocked in the mortar of the exterior sheathing (7) outside.
2. piping shaft according to claim 1 makes template, it is characterised in that：First formed frame (9) is by two phases
It is enclosed to the second connecting tube (91) that the first connecting tube (90) of setting and two are oppositely arranged, or by four second connecting tubes (91)
At every second connecting tube (91) includes at least two short tubes (911), is fixed on the connection of the short tube (911) end
It block (92) and is arranged in the link block (92) for connecting the bolts (93) of the short tube (911).
3. piping shaft according to claim 2 makes template, it is characterised in that：First connecting tube (90) and described
It is fixed on the outside of the junction of two connecting tubes (91) or the junction of second connecting tube (91) for resisting the inner template
(6) steel plate angle (94).
4. piping shaft according to claim 3 makes template, it is characterised in that：Exterior sheathing (7) outer hoop is equipped at least
The second formed frame (10) surrounded together by more steel pipes.
5. piping shaft according to claim 1 makes template, it is characterised in that：The inner template (6) includes polylith head and the tail
The first glued mould (61) of splicing and more first reinforcements for resisting first glued mould (61) are stupefied (62)；It is described
Exterior sheathing (7) include polylith head and the tail splicing the second glued mould (71) and for resisting the more of second glued mould (71)
Root second is reinforced stupefied (72).
6. a kind of making the method that piping shaft is factory produced in template based on any piping shaft in claim 1 to 5, special
Sign is that it includes the following steps：
(a) according to piping shaft size respective production concrete floor (1)；
(b) first brick template (3) lower part and the second brick template are built with brick on the concrete floor (1)
(4) lower part, and load sets an at least overflow pipe (5) on it, continues to be built to higher than the overflow pipe (5) formation with brick
Brick, is connect by the first brick template (3) and the second brick template (4) with cement mortar with the overflow pipe (5)
Place's closing is closely knit；
(c) installed at the top of the described first brick template (3) inner template (6) make its with the described first brick template (3) outside
Side is aligned, and installation the first formed frame of multiple tracks (9) from bottom to top in the inner template (6)；Again in the described second brick mould
The exterior sheathing (7) is installed at the top of plate (4) makes it be aligned to form template with the described second brick template (4) medial surface；
(d) concrete is poured into a mould into template makes its coagulation forming, remove exterior sheathing (7) and turn the first formed frame (9) width down and
Remove inner template (6)；
(e) it is sapped a gallery according to well size at engineering construction, the piping shaft of coagulation forming is transported to progress at engineering construction
Installation.
7. according to claim 6 make the method that piping shaft is factory produced in template, feature based on the piping shaft
It is：In the step (c), wooden frame first is made according to its size before the exterior sheathing (7) is installed, then along on the outside of wooden frame four
All rendering concrete mortar formation is enclosed blocks frame (8) set on the mortar of the exterior sheathing (7) outside；The exterior sheathing is being installed
(7) after, the second formed frame of multiple tracks (10) is arranged outside it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338057.7A CN104908150B (en) | 2015-06-16 | 2015-06-16 | A kind of piping shaft making template and the method based on factorial praluction piping shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338057.7A CN104908150B (en) | 2015-06-16 | 2015-06-16 | A kind of piping shaft making template and the method based on factorial praluction piping shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104908150A CN104908150A (en) | 2015-09-16 |
| CN104908150B true CN104908150B (en) | 2018-08-14 |
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ID=54077789
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510338057.7A Active CN104908150B (en) | 2015-06-16 | 2015-06-16 | A kind of piping shaft making template and the method based on factorial praluction piping shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104908150B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217617A (en) * | 2016-07-20 | 2016-12-14 | 中澳环球建筑工程（天津）有限公司 | Component, its using method of loosing core and apply its wall board forming equipment |
| CN109137989B (en) * | 2018-10-23 | 2023-09-22 | 北京市城远市政工程有限责任公司 | Well chamber masonry device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635736Y (en) * | 2003-08-12 | 2004-08-25 | 张东川 | Shaping mould for manhole |
| CN2918629Y (en) * | 2006-05-30 | 2007-07-04 | 马永乐 | Universal cartridge mould |
| CN203878615U (en) * | 2014-05-30 | 2014-10-15 | 中国建筑第八工程局有限公司 | Light combined type set-shaped steel formwork for inspection well |
| CN104227830A (en) * | 2014-08-21 | 2014-12-24 | 长兴科特碳化硅有限公司 | One-time molding die for fire-resistant and air-permeable core |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8956147B2 (en) * | 2011-11-22 | 2015-02-17 | The OHorizons Foundation | Mold for rectangular structure |
-
2015
- 2015-06-16 CN CN201510338057.7A patent/CN104908150B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635736Y (en) * | 2003-08-12 | 2004-08-25 | 张东川 | Shaping mould for manhole |
| CN2918629Y (en) * | 2006-05-30 | 2007-07-04 | 马永乐 | Universal cartridge mould |
| CN203878615U (en) * | 2014-05-30 | 2014-10-15 | 中国建筑第八工程局有限公司 | Light combined type set-shaped steel formwork for inspection well |
| CN104227830A (en) * | 2014-08-21 | 2014-12-24 | 长兴科特碳化硅有限公司 | One-time molding die for fire-resistant and air-permeable core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104908150A (en) | 2015-09-16 |
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