CN202882424U - Split bolt assembly and sheer wall mold system using the same - Google Patents
Split bolt assembly and sheer wall mold system using the same Download PDFInfo
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- CN202882424U CN202882424U CN201220560220.6U CN201220560220U CN202882424U CN 202882424 U CN202882424 U CN 202882424U CN 201220560220 U CN201220560220 U CN 201220560220U CN 202882424 U CN202882424 U CN 202882424U
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- bolt
- leakage preventing
- sleeve pipe
- preventing plug
- nut
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Abstract
The utility model relates to the field of building construction , in particular to a split bolt assembly and a sheer wall mold system using the same. The split bolt assembly comprises a water stop nut and two bolts, wherein the water stop nut comprises a water stop plate and two connecting nuts. Each connecting nut is connected with a bolt in a screw jointing mode, the outside of each bolt is sleeved with a sleeve, and one end, far away from the water stop nut, of each bolt is connected with a clamp nut. The sheer wall mold system comprises a split bolt assembly, a plurality of moldboards and component force components, wherein the plurality of the moldboards form a mold cavity, the component force components are attached to one sides of the moldboards, the two bolts penetrate out of the mold cavity, the bolts are sleeved with connecting pieces, and the clamp nuts are connected with the component force components through the connecting pieces. Compared with the prior art, the bolts can be drawn out after a sheer wall is formed, and the bolts can be matched with new sleeves and new water stop nuts and be used in the next pouring operation of a sheer wall.
Description
Technical field
The utility model relates to the realm of building construction, particularly the split bolt assembly, use the shear wall mold system of this assembly.
Background technology
Shear wall is a kind of building structure commonly used, can bear the internal force that various loads cause, and the effective horizontal force of control structure.
Existing shear wall generally forms mould by the film template, by fluid concrete moulding in the die cavity of mould.When cast, concrete can produce extruding force to template, and the position of mould is changed, and changes the shape of mould, and then affects shape and the structure of shear wall.Generation for fear of this situation, existing means usually adopt and place die cavity inner split bolt, template is stretched out at the two ends of split bolt, afterwards again by reaching the purpose of stablizing mold shape by the movement that other member is cooperated limit template with the two ends of split bolt.For the water that prevents the shear wall both sides circulates by the slit between split bolt and the shear wall, so also will being set at the middle part of split bolt, a comparison draws the large water-stop tray of bolt size.
Remove template behind the casting complete, and slice off the bolt that is exposed on the external with gas cutting, the mid portion of split bolt and water-stop tray can be stayed the inside of shear wall.But in fact stay the part of shear wall inside, other parts all are useless except water-stop tray, and therefore this mode has been wasted material, has also increased energy consumption, and then has increased cost of production.In addition, the employing gas cutting also can be to environment.
The utility model content
The utility model provides a kind of split bolt assembly;
The utility model also provides a kind of shear wall mold system;
The split bolt assembly that provides described in the utility model, the shear wall mold system that uses this assembly can be built at shear wall and be taken out bolt after finishing and be positioned at the part of shear wall inside and continue to use.
In order to achieve the above object, the technical solution of the utility model is achieved in that
The split bolt assembly comprises sealing nut and two bolts; Described sealing nut comprises water-stop tray and is separately positioned on described water-stop tray both sides and the attaching nut coaxial with described water-stop tray; Each described attaching nut all is spirally connected with an end of a described bolt; The outside of every described bolt is overlapped respectively a sleeve pipe; Every described bolt all is bolted with clamp nut away from an end of described sealing nut.
Further, in the aforesaid split bolt assembly, also overlapping on the every described bolt has a leakage preventing plug; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of the described bolt radial dimension less than the other end.
Further, in the aforesaid split bolt assembly, described leakage preventing plug is provided with a circle extension away from the edge of a side of described sealing nut, and a side of described extension is connected with the edge of described sealing nut, and opposite side bends to described sealing nut place direction.
Further, in the aforesaid split bolt assembly, described leakage preventing plug comprises near the cylindricality extension of described sleeve pipe with away from the outreach part of described sleeve pipe; One end and the described sleeve pipe of described cylindricality extension offset, and the other end is connected with described cylindricality extension; Along described bolt axially, the end that described outreach part is connected with described cylindricality extension is at the radial dimension of the described bolt radial dimension less than the other end.
Further, in the aforesaid split bolt assembly, described leakage preventing plug is the rubber leakage preventing plug.
Further, in the aforesaid split bolt assembly, every described bolt is provided with one away from an end of described sealing nut and adds the section of holding; Described add the section of holding be shaped as that a cylinder is parallel to its axis and with respect to the shape of two rear mid portions that the plane of reference blocks of its axis symmetry.
The shear wall mold system comprises split bolt assembly, polylith template and component member; The described template of polylith consists of die cavity jointly; Described component member and described template are fitted away from a side of described die cavity; Described sleeve pipe and described sealing nut all place described die cavity inner; The described component member that two bolts of described split bolt assembly are passed described die cavity and fitted with described template by two templates that are oppositely arranged in inside of described die cavity respectively; Described bolt stretches out that cover has connector on the end of described template; Described clamp nut is connected with described component member by described connector.
Further, in the aforesaid shear wall mold system, also cover has a leakage preventing plug on every described bolt of described split bolt assembly; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of described bolt during less than the radial dimension of the other end, and the lateral wall of described leakage preventing plug pushes against and is used for the inwall that passes the hole that passes for described bolt on the described template.
Compared with prior art, split bolt assembly described in the utility model, use this assembly the shear wall mold system by using the sealing nut that the attaching nut is set in the both sides of water-stop tray, and the sealing nut is spirally connected by attaching nut and two bolts, just become so a kind of detachable syndeton between water-stop tray and the bolt.By at the outside of bolt cover sleeve pipe being arranged, when pouring into a mould, sleeve pipe contacts with concrete afterwards, and inner bolt is not contact with concrete, and concrete just can not form resistance to the extraction of bolt like this.When needing to extract bolt out, only need bolt is rotated to breaking away from the relation of being spirally connected with the attaching nut, then directly extract sleeve pipe out and get final product.Bolt can cooperate with new sleeve pipe and sealing nut after extracting out, uses in next time shear wall pouring practice.Saved cost.
In addition, split bolt assembly provided by the utility model, use the shear wall mold system of this assembly also to have following technique effect:
(1) by leakage preventing plug is set, the hole that passes that passes for bolt on the template can be blocked, prevent that concrete flows out by the edge that passes the hole in casting process, cause spillage.
(2) by at leakage preventing plug extension being set, making leakage preventing plug and pass tightr that the hole is combined, further mortar leakage prevention.
(3) add the section of holding by setting, can make instrument and add the section of holding and cooperate when swivel bolt, connection more firm can slippage in rotation process.
(4) owing to need not re-use Methods of OFC-A and slice off and be exposed to outer bolt, thus can not produce more than energy consumption, do not pollute the environment yet.
Description of drawings
In order to be illustrated more clearly in the utility model specific embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in the specific embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model specific embodiment 1 described split bolt assembly;
Fig. 2 is the structural representation of the utility model specific embodiment 1 described leakage preventing plug;
Fig. 3 is the structural representation of the utility model specific embodiment 2 described shear wall mold systems;
Fig. 4 is the flow chart of the job practices of the utility model specific embodiment 3 described shear wall mold systems.
Reference numeral: 1-sealing nut, the 2-bolt, the 3-water-stop tray, 4-attaching nut, the 5-sleeve pipe, the 6-clamp nut, the 7-leakage preventing plug, 8-cylindricality extension, 9-adds the section of holding, 10-template, 11-component member, 12-die cavity, 13-extension, 14-outreach part, 15-connector.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer; the below will carry out clear, complete description to the technical solution of the utility model; based on the specific embodiment in the utility model; those of ordinary skills are resulting all other embodiments under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
An embodiment of the present utility model provides a kind of split bolt assembly, comprises sealing nut and two bolts; Described sealing nut comprises water-stop tray and is separately positioned on described water-stop tray both sides and the attaching nut coaxial with described water-stop tray; Each described attaching nut all is spirally connected with an end of a described bolt; The outside of every described bolt is overlapped respectively a sleeve pipe; Every described bolt all is bolted with clamp nut away from an end of described sealing nut.
By use attaching nut's sealing nut is set in the both sides of water-stop tray, and the sealing nut is spirally connected by attaching nut and two bolts, just become so a kind of detachable syndeton between water-stop tray and the bolt.By at the outside of bolt cover sleeve pipe being arranged, when pouring into a mould, sleeve pipe contacts with concrete afterwards, and inner bolt is not contact with concrete, and concrete just can not form resistance to the extraction of bolt like this.When needing to extract bolt out, only need bolt is rotated to breaking away from the relation of being spirally connected with the attaching nut, then directly extract sleeve pipe out and get final product.Bolt can cooperate with new sleeve pipe and sealing nut after extracting out, uses in next time shear wall pouring practice.Saved cost.
In addition, slice off and be exposed to outer bolt owing to need not re-use Methods of OFC-A, thus can not produce more than energy consumption, do not pollute the environment yet.
Bolt on the template passes between hole and the bolt and has the gap, and concrete may flow out from gap location when pouring into a mould, and causes spillage.In order to prevent this situation, also overlapping on the every described bolt has a leakage preventing plug; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of the described bolt radial dimension less than the other end.The hole that passes that passes for bolt on the template can be blocked like this, prevent that concrete flows out by the edge that passes the hole in casting process, cause spillage.
In order further to improve the mortar leakage prevention effect, can be provided with a circle extension away from the edge of a side of described sealing nut at described leakage preventing plug, a side of described extension is connected with the edge of described sealing nut, and opposite side bends to described sealing nut place direction.Can make like this leakage preventing plug and pass tightr that the hole is combined, reach and improve the mortar leakage prevention effect.
Very large power need to be born in the position that leakage preventing plug and sleeve pipe offset, by comprising at described leakage preventing plug near the cylindricality extension of described sleeve pipe with away from the outreach part of described sleeve pipe; One end and the described sleeve pipe of described cylindricality extension offset, and the other end is connected with described cylindricality extension; Along described bolt axially, the end that described outreach part is connected with described cylindricality extension is at the radial dimension of the described bolt radial dimension less than the other end.The suffered power of leakage preventing plug is more born by the cylindricality extension, reduced the suffered impact of shape of outreach part, and then guarantee it and pass closely cooperating of hole, reach the effect of mortar leakage prevention.
In order to make leakage preventing plug and to pass tightr that the hole cooperates, described leakage preventing plug is the rubber leakage preventing plug.
Because bolt does not have origin of force originally as cylindrical structural on the circumference, so instrument often can skid when bolt is rotated, can't clamp stud.Add the section of holding by being provided with one at every described bolt away from an end of described sealing nut; Described add the section of holding be shaped as that a cylinder is parallel to its axis and with respect to the shape of two rear mid portions that the plane of reference blocks of its axis symmetry.Can make like this instrument and add the section of holding and cooperate when swivel bolt, connection more firm can slippage in rotation process.
Another embodiment of the present utility model also provides a kind of shear wall mold system, comprises split bolt assembly, polylith template and component member; The described template of polylith consists of die cavity jointly; Described component member and described template are fitted away from a side of described die cavity; Described sleeve pipe and described sealing nut all place described die cavity inner; The described component member that two bolts of described split bolt assembly are passed described die cavity and fitted with described template by two templates that are oppositely arranged in inside of described die cavity respectively; Described bolt stretches out that cover has connector on the end of described template; Described clamp nut is connected with described component member by described connector.
Wherein, the component member can consist of keelson by staggered the combining of many steel pipes, and keelson and template are fitted, and just it can be disperseed to be delivered to other parts at certain any suffered power, and then be passed on the template.The surperficial distribution of force of template is more even like this, is not easy to damage.Connector can be the butterfly card, and butterfly is fastened on the bolt during construction, makes butterfly fasten tight component member by the rotation fastening bolt afterwards, and then the pushing and pressing template, adjusts the position of template, and then the shape of regulating die cavity.
The job practices of this system comprises the following steps:
Jointly consist of die cavity with the polylith template, and away from a side of die cavity component member and its applying are set in template;
Two bolts and sealing nut are spirally connected;
Sleeve pipe on the bolt outer cover;
Connector is enclosed within the end that bolt stretches out template;
Screw clamp nut, clamp nut is connected with the component member by connector;
In mould, inject concrete formation shear wall;
Remove successively clamp nut, component member and template;
Swivel bolt makes the state that is spirally connected of its disengaging and sealing nut, extracts bolt out.
Just can realize in this way the recycling of bolt, save cost.
Also cover has a leakage preventing plug on every described bolt of described split bolt assembly; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of described bolt during less than the radial dimension of the other end, can push against by the lateral wall at described leakage preventing plug described template and be used for the inwall that passes the hole that passes for described bolt.Described be enclosed within the step of sleeve pipe on the bolt outer cover and with connector further to add between the step of an end that bolt stretches out template leakage preventing plug placed pass the place, hole on the template, make the lateral wall of leakage preventing plug push against the inwall that passes the hole.Step make leakage preventing plug and pass the hole and realize cooperating.Can effectively prevent from passing the hole spillage.
For more laborsaving when the swivel bolt, can jointly consist of die cavity with the polylith template described, and template the step of component member and its applying is set away from a side of die cavity and step that two bolts and sealing nut are spirally connected between further comprise:
The end that bolt and sealing nut are spirally connected soaks with machine oil;
Bolt after soaking is left standstill, and it stops oil dripping disposed upright.
Soak with machine oil by the end that bolt is connected with the sealing nut, can play good lubricant effect, more laborsaving when swivel bolt.
For better explaining the utility model, the below provides specific embodiment to describe.
Specific embodiment 1
As depicted in figs. 1 and 2, the split bolt assembly comprises sealing nut 1 and two bolts 2; Described sealing nut 1 comprises water-stop tray 3 and is separately positioned on described water-stop tray 3 both sides and the attaching nut 4 coaxial with described water-stop tray 3; Each described attaching nut 4 all is spirally connected with an end of a described bolt 2; The outside of every described bolt 2 is overlapped respectively a sleeve pipe 5; Every described bolt 2 all is bolted with clamp nut 6 away from an end of described sealing nut 1.
Also overlap on the every described bolt 2 leakage preventing plug 7 is arranged; Described leakage preventing plug 7 comprises near the cylindricality extension 8 of described sleeve pipe 5 with away from the outreach part 14 of described sleeve pipe 5; One end and the described sleeve pipe 5 of described cylindricality extension 8 offset, and the other end is connected with described cylindricality extension 8; Along described bolt 2 axially, the end that described outreach part 14 is connected with described cylindricality extension 8 is at the radial dimension of described bolt 2 radial dimension less than the other end.
Described outreach part 14 is provided with a circle extension 13 away from the edge of a side of described sealing nut 1, and a side of described extension 13 is connected with the edge of described sealing nut 1, and opposite side is to described sealing nut 1 place direction bending.
Described leakage preventing plug 7 is rubber leakage preventing plug 7.
Every described bolt 2 is provided with one away from an end of described sealing nut 1 and adds the section of holding 9; Described add the section of holding 9 be shaped as that a cylinder is parallel to its axis and with respect to the shape of two rear mid portions that the plane of reference blocks of its axis symmetry.
As shown in Figure 3, the shear wall mold system comprises split bolt assembly, polylith template 10 and component member 11 in the specific embodiment 1; The described template 10 common formation die cavitys 12 of polylith; Described component member 11 is fitted away from a side of described die cavity 12 with described template 10; Described sleeve pipe 5 all places described die cavity 12 inside with described sealing nut 1; The described component member 11 that two bolts 2 of described split bolt assembly are passed described die cavity 12 and fitted with described template 10 by two templates that are oppositely arranged 10 in inside of described die cavity 12 respectively; Described bolt 2 stretches out that cover has connector 15 on the end of described template 10; Described clamp nut 6 is connected with described component member 11 by described connector 15.The lateral wall of described leakage preventing plug 7 pushes against on the described template 10 for the inwall that passes the hole that passes for described bolt 2.
As shown in Figure 4, the job practices of the shear wall mold system that specific embodiment 2 provides comprises the following steps:
301) jointly consist of die cavity with the polylith template, and away from a side of die cavity component member and its applying are set in template;
302) end that bolt and sealing nut is spirally connected soaks with machine oil;
303) bolt after will soaking leaves standstill, and it stops oil dripping disposed upright;
304) two bolts and sealing nut are spirally connected;
305) sleeve pipe on the bolt outer cover;
306) leakage preventing plug is placed the hole that passes on the template locate, make the lateral wall of leakage preventing plug push against the inwall that passes the hole;
307) connector is enclosed within the end that bolt stretches out template;
308) screw clamp nut, clamp nut is connected with the component member by connector;
309) in mould, inject concrete formation shear wall;
310) remove successively clamp nut, component member and template;
311) swivel bolt makes the state that is spirally connected of its disengaging and sealing nut, extracts bolt out.
The split bolt assembly that specific embodiment of the utility model 1 to 3 provides, the shear wall mold system that uses this assembly and job practices are by using the sealing nut that the attaching nut is set in the both sides of water-stop tray, and the sealing nut is spirally connected by attaching nut and two bolts, just become so a kind of detachable syndeton between water-stop tray and the bolt.By at the outside of bolt cover sleeve pipe being arranged, when pouring into a mould, sleeve pipe contacts with concrete afterwards, and inner bolt is not contact with concrete, and concrete just can not form resistance to the extraction of bolt like this.When needing to extract bolt out, only need bolt is rotated to breaking away from the relation of being spirally connected with the attaching nut, then directly extract sleeve pipe out and get final product.Bolt can cooperate with new sleeve pipe and sealing nut after extracting out, uses in next time shear wall pouring practice.Saved cost.
In addition, also have following technique effect:
(1) by leakage preventing plug is set, the hole that passes that passes for bolt on the template can be blocked, prevent that concrete flows out by the edge that passes the hole in casting process, cause spillage.
(2) by at leakage preventing plug extension being set, making leakage preventing plug and pass tightr that the hole is combined, further mortar leakage prevention.
(3) add the section of holding by setting, can make instrument and add the section of holding and cooperate when swivel bolt, connection more firm can slippage in rotation process.
(4) soak with machine oil by the end that bolt is connected with the sealing nut, can play good lubricant effect, more laborsaving when swivel bolt.
It should be noted that at last: above embodiment and embodiment only in order to the technical solution of the utility model to be described, are not intended to limit; Although with reference to aforementioned embodiments and embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned embodiments or embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make essence disengaging the utility model embodiment of appropriate technical solution or the spirit and scope of embodiment technical scheme.
Claims (8)
1. the split bolt assembly is characterized in that: comprise sealing nut and two bolts; Described sealing nut comprises water-stop tray and is separately positioned on the both sides of described water-stop tray and the attaching nut coaxial with described water-stop tray; Each described attaching nut all is spirally connected with an end of a described bolt; The outside of every described bolt is overlapped respectively a sleeve pipe; Every described bolt all is bolted with clamp nut away from an end of described sealing nut.
2. split bolt assembly as claimed in claim 1 is characterized in that: on the every described bolt also cover a leakage preventing plug is arranged; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of the described bolt radial dimension less than the other end.
3. split bolt assembly as claimed in claim 2, it is characterized in that: described leakage preventing plug is provided with a circle extension away from the edge of a side of described sealing nut, one side of described extension is connected with the edge of described sealing nut, and opposite side bends to described sealing nut place direction.
4. split bolt assembly as claimed in claim 3 is characterized in that: described leakage preventing plug comprises near the cylindricality extension of described sleeve pipe with away from the outreach part of described sleeve pipe; One end and the described sleeve pipe of described cylindricality extension offset, and the other end is connected with described cylindricality extension; Along described bolt axially, the end that described outreach part is connected with described cylindricality extension is at the radial dimension of the described bolt radial dimension less than the other end.
5. split bolt assembly as claimed in claim 2, it is characterized in that: described leakage preventing plug is the rubber leakage preventing plug.
6. such as the described split bolt assembly of any one in the claim 1 to 5, it is characterized in that: every described bolt is provided with one away from an end of described sealing nut and adds the section of holding; Described add the section of holding be shaped as that a cylinder is parallel to its axis and with respect to the shape of two rear mid portions that the plane of reference blocks of its axis symmetry.
7. the shear wall mold system is characterized in that: comprise the described split bolt assembly of any one, polylith template and component member in the claim 1 to 6; The described template of polylith consists of die cavity jointly; Described component member and described template are fitted away from a side of described die cavity; Described sleeve pipe and described sealing nut all place the inside of described die cavity; The described component member that two bolts of described split bolt assembly are passed described die cavity and fitted with described template by two templates that are oppositely arranged in inside of described die cavity respectively; Described bolt stretches out that cover has connector on the end of described template; Described clamp nut is connected with described component member by described connector.
8. shear wall mold system as claimed in claim 7 is characterized in that: also cover has a leakage preventing plug on every described bolt of described split bolt assembly; One end and the described sleeve pipe of described leakage preventing plug offset, and along described bolt axially, the end that described leakage preventing plug and described sleeve pipe offset is at the radial dimension of described bolt during less than the radial dimension of the other end, and the lateral wall of described leakage preventing plug pushes against and is used for the inwall that passes the hole that passes for described bolt on the described template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220560220.6U CN202882424U (en) | 2012-10-29 | 2012-10-29 | Split bolt assembly and sheer wall mold system using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220560220.6U CN202882424U (en) | 2012-10-29 | 2012-10-29 | Split bolt assembly and sheer wall mold system using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882424U true CN202882424U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220560220.6U Expired - Fee Related CN202882424U (en) | 2012-10-29 | 2012-10-29 | Split bolt assembly and sheer wall mold system using the same |
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| Country | Link |
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| CN (1) | CN202882424U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877645A (en) * | 2012-10-29 | 2013-01-16 | 成都市第三建筑工程公司 | Split bolt component, shear wall die system using component, and construction method |
| CN105544977A (en) * | 2015-12-29 | 2016-05-04 | 中建六局土木工程有限公司 | Combined special-shaped component formwork strengthening supporting and water stopping construction and installation method |
| EP3088633A1 (en) * | 2015-04-30 | 2016-11-02 | Juan Andrés Elduayen Madariaga | Formwork tube |
-
2012
- 2012-10-29 CN CN201220560220.6U patent/CN202882424U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877645A (en) * | 2012-10-29 | 2013-01-16 | 成都市第三建筑工程公司 | Split bolt component, shear wall die system using component, and construction method |
| EP3088633A1 (en) * | 2015-04-30 | 2016-11-02 | Juan Andrés Elduayen Madariaga | Formwork tube |
| US10267051B2 (en) | 2015-04-30 | 2019-04-23 | 20 Emma 20 S.L. | Formwork tube |
| CN105544977A (en) * | 2015-12-29 | 2016-05-04 | 中建六局土木工程有限公司 | Combined special-shaped component formwork strengthening supporting and water stopping construction and installation method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211029 |