CN205348560U - Hollow core slab buries core pore -forming pipe - Google Patents
Hollow core slab buries core pore -forming pipe Download PDFInfo
- Publication number
- CN205348560U CN205348560U CN201520772529.5U CN201520772529U CN205348560U CN 205348560 U CN205348560 U CN 205348560U CN 201520772529 U CN201520772529 U CN 201520772529U CN 205348560 U CN205348560 U CN 205348560U
- Authority
- CN
- China
- Prior art keywords
- pore
- precast hollow
- forming pipe
- hollow slab
- pipe
- 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.)
- Active
Links
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model provides a hollow core slab buries core pore -forming pipe, including the body, the body is provided with horizontal backup pad or support column or supporting protruded block for lining up the hollow tube in the inner chamber of body. So, when the body for lining up the hollow tube, when the hollow tube was used in the hollow core slab, its tip link up, if still set up in the hollow tube and support core -pulling die, can reduce pore -forming pipe wall thickness degree by a wide margin, can not lead to the pore -forming pipe to warp yet. Be provided with horizontal backup pad or support column or supporting protruded block in the inner chamber of body, has played good supporting role to the hollow tube, even its wall thickness degree is very thin, also can satisfy the requirement of supporting cast in situ concrete and pouring the load, need not set up in the hollow tube and support core -pulling die and also can reach the effect that prevents the pore -forming pipe and warp, if still set up on the pore -forming inside pipe wall with horizontal backup pad or support column or supporting protruded block integrated into one piece's little protruding muscle, then can further improve the rigidity of pipe wall, prevent that it is out of shape when concreting.
Description
Technical field
This utility model relates to a kind of building element, buries core pore-forming pipe particularly to a kind of precast hollow slab.
Background technology
China's Urbanization Construction is fast-developing, and construction scope ranks first in the world.Currently, building industrialization is extremely urgent, building industry green construction transition, and energy-saving and emission-reduction in building course manufacture the precast hollow slab with superior structural performance, highly desirable in order to build assembled architecture.
At present, the reinforced concrete floor of domestic employing has cast-in-situ floor and precast hollow slab floor, cast-in-situ floor good integrity, but needs on-the-spot formwork, then casting concrete, construction period difficulty is big, and template loss is big, and cost is high, and prefabricated building cored slab does not need on-the-spot formwork, short construction period, cost is low, is therefore widely used in all kinds of building.
Such as, being: in the application documents of CN201320705360.2 disclose a kind of full prefabricated hollow floor at number of patent application, including floor main body, floor main body includes bottom, hollow device and top layer, is hollow device between bottom and top layer；The baseplate reinforcing bar that bottom is concrete layer and top colligation thereof is constituted；Top layer is roof steel bar, and casting concrete layer is constituted.This full prefabricated hollow floor is owing to forming cavity at intralaminar part, alleviate the weight of floor self, compare laminated floor slab and it is not necessary to second pouring, environmental protection and save the duration, but in the manufacturing process of this floor, there is hollow device rigidity not strong, it is easy to damaged situation, this has a strong impact on the overall performance of floor.
Utility model content
The technical problems to be solved in the utility model is: providing a kind of precast hollow slab to bury core pore-forming pipe, it is not strong that it can solve precast hollow slab manufacturing process hollow core device rigidity, it is easy to damaged problem, thus improving the total quality of precast hollow slab.
Solution of the present utility model is achieved in that a kind of precast hollow slab buries core pore-forming pipe, and including body, described body is through hollow pipe, is provided with cross-brace plate or support column or supporting lug in the inner chamber of body.So, when body is through hollow pipe, when hollow pipe is applied in precast hollow slab, its end is through, if also arranging support in hollow pipe to loose core mould, after concrete casting complete, mould of support being loosed core is extracted out, so, pore-forming tube wall thickness can be greatly lowered, without causing that pore-forming pipe deforms, and then, it is not result in the uneven situation of precast hollow slab hole wall to occur, similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then need not arrange support to loose core mould, the uniform effect of cored slab hole wall can also be reached, the inner chamber of body is provided with cross-brace plate or support column or supporting lug, hollow pipe is served good supporting role, even if its pipe thickness is very thin, it also is able to meet support cast-in-place concrete and builds the requirement of load, need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent pore-forming pipe from deforming, as also set up on pore-forming inside pipe wall and cross-brace plate or support column or the integrated small convex rib of supporting lug, then can improve the rigidity of tube wall further, prevent it from deforming when casting concrete.
Another technical scheme of the present utility model is in that on above-mentioned basis, and the outer surface of described body is provided with at least one fin, and described fin is longitudinally disposed at tube surfaces.So, outer surface at body is additionally provided with fin, and in the process making precast hollow slab, fin can play the effect supporting location, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.Additionally, when fin is longitudinally disposed at tube surfaces, in the process making precast hollow slab, longitudinally disposed fin may also operate as the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge, increase the hollow rate of precast hollow slab further.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described body cross section is rectangle.So, when body cross section is rectangle, after described pore-forming pipe is applied in precast hollow slab, correspondingly can be internally formed through rectangle duct at cored slab, cross section is the hollow rate that the pore-forming pipe of rectangle can increase substantially precast hollow slab, saves material, reduces precast hollow slab own wt.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described tube wall to be provided with at least one transverse concave groove.So, when tube wall is provided with at least one transverse concave groove, transverse concave groove improves the lateral bearing capacity of pore-forming pipe, it is made to be unlikely to deform in application process, simultaneously, cast-in-place concrete also can form xoncrete structure in transverse concave groove, improves the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described body to be provided with at least one align member.So, when body is provided with at least one align member, described pore-forming pipe is in application process, align member can be supported on precast hollow board forming die, pore-forming pipe can be fixed in precast hollow board forming die, prevent from swinging around, can fully ensure that the thickness of precast hollow slab both sides plate body is consistent with design thickness.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described fin to be provided with positioner.So, when fin is provided with positioner, in application process, positioner on described fin can coordinate screens to fix with reinforcing bar or steel wire, fin can play longitudinal bracing positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described positioner is groove.So, when positioner is groove, in application process, positioner can be fixed with reinforcing bar or steel wire cooperation screens very easily and prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, has fully ensured that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described groove is the groove that the little endoporus of entrance is big.So, when groove is the groove that the little endoporus of entrance is big, in application process, reinforcing bar or steel wire snap in after in groove, in the process building cast-in-place concrete, the groove that the little endoporus of entrance is big can play the effect of snap close, so that reinforcing bar or steel wire are not easy to eject.
Another technical scheme of the present utility model is in that on above-mentioned basis, and at least one end of described body is provided with enclosing cover, and body is closed into blind pipe or closed hollow pipe by described enclosing cover.So, when at least one end of body is provided with enclosing cover, body is closed into blind pipe or closed hollow pipe by described enclosing cover, after described pore-forming pipe is applied in precast hollow slab, such as end also casting concrete, then can forming semiclosed or totally enclosed precast hollow slab, the globality of this precast hollow slab, sound-insulating heat-insulation property are good, in particular improve the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described enclosing cover end is provided with keeper, and described keeper is arranged at enclosing cover edge or cover bottom portion.So, when enclosing cover end is provided with keeper, described keeper is arranged at enclosing cover edge or cover bottom portion, in application process, pore-forming pipe can be fixed in the mould of precast hollow slab by keeper, prevent the situation that pore-forming tube end causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin is arranged on two faces that body is relative.So, fin is arranged on two faces that body is relative, in application process, fin can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, and after multiple pore-forming bank of tubes row, fin cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin is arranged on four faces of body.So, when fin is arranged on four faces of body, fin can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, simultaneously, after multiple pore-forming bank of tubes row, fin cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge.
Another technical scheme of the present utility model is in that on above-mentioned basis, and the material of described body is plastics, the fin global formation that described body and outer surface thereof are arranged.So, when the material of body is plastics, during the fin global formation that described body and outer surface thereof are arranged, pore-forming pipe is manufactured convenient and simple, and pipe thickness can strictly control, and, bonding strength between fin and body is good, it is not easy to damages and comes off, has fully ensured that the quality of pore-forming pipe.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin shifts to install on relative two faces of body.So, when fin shifts to install on relative two faces of body, in application process, after multiple pore-forming bank of tubes row, the fin shifted to install complements each other to form and blocks, it is possible to reduce producting process difficulty, advantageously reduces cost, improves efficiency.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 is that the precast hollow slab that a kind of embodiment of this programme relates to buries core pore-forming pipe local structural graph；
Fig. 2 is that the precast hollow slab that this programme another kind embodiment relates to buries core pore-forming pipe local structural graph；
Fig. 3 is that the precast hollow slab that this programme another kind embodiment relates to buries core pore-forming duct ligation composition；
Fig. 4 is that the precast hollow slab that this programme another kind embodiment relates to buries core pore-forming pipe local structural graph；
Fig. 5 is that the precast hollow slab that this programme another kind embodiment relates to buries core pore-forming duct ligation composition；
Fig. 6 to Fig. 8 is that the precast hollow slab that this programme other two embodiment relates to buries core pore-forming pipe local structural graph.
In figure:
1 body 2 fin 20 positioner 3 transverse concave groove
4 enclosing cover 40 keeper 6 cross-brace plates
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model being described in detail, the description of this part is only exemplary and explanatory, and protection domain of the present utility model should not have any restriction effect.Additionally, the description that those skilled in the art are according to presents, it is possible to the feature in embodiment in presents and in different embodiment is carried out respective combination.
This utility model embodiment is as follows, refers to Fig. 1 to Fig. 8, and a kind of precast hollow slab buries core pore-forming pipe, and including body 1, described body 1 is through hollow pipe, is provided with cross-brace plate 6 or support column or supporting lug in the inner chamber of body.So, when body is through hollow pipe, when hollow pipe is applied in precast hollow slab, its end is through, if also arranging support in hollow pipe to loose core mould, after concrete casting complete, mould of support being loosed core is extracted out, so, pore-forming tube wall thickness can be greatly lowered, without causing that pore-forming pipe deforms, and then, it is not result in the uneven situation of precast hollow slab hole wall to occur, similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then need not arrange support to loose core mould, the uniform effect of cored slab hole wall can also be reached, the inner chamber of body is provided with cross-brace plate or support column or supporting lug, hollow pipe is served good supporting role, even if its pipe thickness is very thin, it also is able to meet support cast-in-place concrete and builds the requirement of load, need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent pore-forming pipe from deforming, as also set up on pore-forming inside pipe wall and cross-brace plate or support column or the integrated small convex rib of supporting lug, then can improve the rigidity of tube wall further, prevent it from deforming when casting concrete.Concrete, as it is shown in figure 1, described cross-brace plate 6 can be arranged to notch.As it is shown on figure 3, described cross-brace plate 6 can be the multiple ribs or the projection that are arranged on inboard wall of tube body, described ribs or projection can form annular stiffening rib or annular lug at inboard wall of tube body.As shown in Figure 4, described cross-brace plate 6 can also be arranged on ribs on one or several face of inboard wall of tube body or projection.As it is shown in figure 5, described cross-brace plate 6 can also be the gripper shoe at the middle part being arranged on inboard wall of tube body.As shown in Figure 6, described cross-brace plate 6 can also be the polylith cross-brace plate being arranged on inboard wall of tube body, or as it is shown in fig. 7, described cross-brace plate 6 can also be the polylith longitudinal supporting plate being arranged on inboard wall of tube body.
On the basis of above-described embodiment, in another embodiment of this utility model, the outer surface of described body is provided with at least one fin 2, and described fin 2 is longitudinally disposed at body 1 surface.So, outer surface at body 1 is additionally provided with fin 2, in the process making precast hollow slab, fin can play the effect supporting location, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.Additionally, when fin is longitudinally disposed at tube surfaces, in the process making precast hollow slab, longitudinally disposed fin may also operate as the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge, increase the hollow rate of precast hollow slab further.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figures 1 to 8, described body 1 cross section can be rectangle.So, when body 1 cross section is rectangle, after described pore-forming pipe is applied in precast hollow slab, correspondingly can be internally formed through rectangle duct at cored slab, cross section is the hollow rate that the pore-forming pipe of rectangle can increase substantially precast hollow slab, saves material, reduces precast hollow slab own wt.Certainly, in other designs, described body 1 cross section can also be circular or oval or other polygons etc., and these also belong to equivalent technologies and replace, and belong to the protection domain of this patent.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in figs. 4 and 7, described body 1 outer wall can be provided with at least one transverse concave groove 3.So, when body 1 outer wall is provided with at least one transverse concave groove 3, transverse concave groove 3 improves the lateral bearing capacity of pore-forming pipe, it is made to be unlikely to deform in application process, simultaneously, cast-in-place concrete also can form xoncrete structure in transverse concave groove 3, improves the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
On the basis of above-described embodiment, in another embodiment of this utility model, described body 1 can be provided with at least one align member.So, when body 1 is provided with at least one align member, described pore-forming pipe is in application process, align member can be supported on precast hollow board forming die, pore-forming pipe can be fixed in precast hollow board forming die, prevent from swinging around, can fully ensure that the thickness of precast hollow slab both sides plate body is consistent with design thickness.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8, described fin 2 can be provided with positioner 20.So, when fin 2 is provided with positioner 20, in application process, positioner 20 on described fin 2 can coordinate screens to fix with reinforcing bar or steel wire, fin 2 can play longitudinal bracing positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8, described positioner 20 can be groove.So, when positioner 20 is groove, in application process, positioner 20 can be fixed with reinforcing bar or steel wire cooperation screens very easily and prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, has fully ensured that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8, described groove can be the groove that the little endoporus of entrance is big.So, when groove is the groove that the little endoporus of entrance is big, in application process, reinforcing bar or steel wire snap in after in groove, in the process building cast-in-place concrete, the groove that the little endoporus of entrance is big can play the effect of snap close, so that reinforcing bar or steel wire are not easy to eject.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8, at least one end of described body 1 can be provided with enclosing cover 4, and body 1 is closed into blind pipe or closed hollow pipe by described enclosing cover 4.So, when at least one end of body 1 is provided with enclosing cover 4, body 1 is closed into blind pipe or closed hollow pipe by described enclosing cover 4, after described pore-forming pipe is applied in precast hollow slab, such as end also casting concrete, then can forming semiclosed or totally enclosed precast hollow slab, the globality of this precast hollow slab, sound-insulating heat-insulation property are good, in particular improve the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8, described enclosing cover 4 end can be provided with keeper 40, and described keeper 40 is arranged at bottom enclosing cover 4 edge or enclosing cover 4.So, when enclosing cover 4 end is provided with keeper 40, described keeper 40 is arranged at bottom enclosing cover 4 edge or enclosing cover 4, in application process, pore-forming pipe can be fixed in the mould of precast hollow slab by keeper 40, prevent the situation that pore-forming tube end causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as it is shown in figure 1, described fin 2 can be arranged on two faces that body 1 is relative.So, fin 2 is arranged on two faces that body 1 is relative, in application process, fin 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, and after multiple pore-forming bank of tubes row, fin 2 cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge.
On the basis of above-described embodiment, in another embodiment of this utility model, described fin 2 can be arranged on four faces of body 1.So, when fin 2 is arranged on four faces of body 1, fin 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, simultaneously, after multiple pore-forming bank of tubes row, fin 2 cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect cutting off concrete heat bridge.
On the basis of above-described embodiment, in another embodiment of this utility model, the material of described body 1 is plastics, fin 2 global formation that described body 1 and outer surface thereof are arranged.So, when the material of body 1 is plastics, during fin 2 global formation that described body 1 and outer surface thereof are arranged, pore-forming pipe is manufactured convenient and simple, pipe thickness can strictly control, and, the bonding strength between fin 2 and body 1 is good, it is not easy damage to come off, fully ensures that the quality of pore-forming pipe.
On the basis of above-described embodiment, in another embodiment of this utility model, described fin 2 shifts to install on relative two faces of body 1.So, when fin 2 shifts to install on relative two faces of body 1, in application process, after multiple pore-forming bank of tubes row, the fin 2 shifted to install complements each other to form and blocks, it is possible to reduce producting process difficulty, advantageously reduces cost, improves efficiency.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (14)
1. precast hollow slab buries a core pore-forming pipe, including body, it is characterised in that described body is through hollow pipe, is provided with cross-brace plate or support column or supporting lug in the inner chamber of body.
2. precast hollow slab according to claim 1 buries core pore-forming pipe, it is characterised in that the outer surface of described body is provided with at least one fin, and described fin is longitudinally disposed at tube surfaces.
3. precast hollow slab according to claim 1 buries core pore-forming pipe, it is characterised in that described body cross section is rectangle.
4. precast hollow slab according to claim 3 buries core pore-forming pipe, it is characterised in that be provided with at least one transverse concave groove on described tube wall.
5. precast hollow slab according to claim 3 buries core pore-forming pipe, it is characterised in that be provided with at least one align member on described body.
6. the precast hollow slab according to any one of claim 2 buries core pore-forming pipe, it is characterised in that be provided with positioner on described fin.
7. precast hollow slab according to claim 6 buries core pore-forming pipe, it is characterised in that described positioner is groove.
8. precast hollow slab according to claim 7 buries core pore-forming pipe, it is characterised in that described groove is the groove that the little endoporus of entrance is big.
9. precast hollow slab according to claim 6 buries core pore-forming pipe, it is characterised in that at least one end of described body is provided with enclosing cover, and body is closed into blind pipe or closed hollow pipe by described enclosing cover.
10. precast hollow slab according to claim 9 buries core pore-forming pipe, it is characterised in that described enclosing cover end is provided with keeper, and described keeper is arranged at enclosing cover edge or cover bottom portion.
11. precast hollow slab according to claim 2 buries core pore-forming pipe, it is characterised in that described fin is arranged on two faces that body is relative.
12. precast hollow slab according to claim 2 buries core pore-forming pipe, it is characterised in that described fin is arranged on four faces of body.
13. precast hollow slab according to any one of claim 1 to 5 buries core pore-forming pipe, it is characterised in that the material of described body is plastics, the fin global formation that described body and outer surface thereof are arranged.
14. precast hollow slab according to claim 11 buries core pore-forming pipe, it is characterised in that described fin shifts to install on relative two faces of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772529.5U CN205348560U (en) | 2015-09-30 | 2015-09-30 | Hollow core slab buries core pore -forming pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772529.5U CN205348560U (en) | 2015-09-30 | 2015-09-30 | Hollow core slab buries core pore -forming pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205348560U true CN205348560U (en) | 2016-06-29 |
Family
ID=56167028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520772529.5U Active CN205348560U (en) | 2015-09-30 | 2015-09-30 | Hollow core slab buries core pore -forming pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205348560U (en) |
-
2015
- 2015-09-30 CN CN201520772529.5U patent/CN205348560U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205369699U (en) | Hollow core slab buries core pore -forming pipe | |
| CN205348560U (en) | Hollow core slab buries core pore -forming pipe | |
| CN205369679U (en) | Prefabricated hollow slab | |
| CN205369698U (en) | Hollow core slab buries core pore -forming pipe | |
| CN205153293U (en) | Hollow core slab buries core pore -forming pipe | |
| CN105155769A (en) | Prefabricated hollow slab core-buried pore-forming pipe | |
| CN205329947U (en) | Honeycomb core box body | |
| CN205153288U (en) | Hollow core slab buries core pore -forming pipe | |
| CN204983307U (en) | Prefabricated hollow slab | |
| CN205153285U (en) | Hollow core slab buries core pore -forming pipe | |
| CN105155770A (en) | Prefabricated hollow slab | |
| CN204983383U (en) | Hollow core slab buries core pore -forming pipe | |
| CN205153286U (en) | Hollow core slab buries core pore -forming pipe | |
| CN205153266U (en) | Prefabricated hollow slab | |
| CN205153272U (en) | Prefabricated hollow slab | |
| CN205153267U (en) | Prefabricated hollow slab | |
| CN205153269U (en) | Rack that hollow core slab used | |
| CN105155746A (en) | Prefabricated hollow slab core-buried pore-forming pipe | |
| CN205035978U (en) | Prefabricated hollow slab | |
| CN205348558U (en) | Rack for hollow core slab | |
| CN218322773U (en) | Elevator shaft foundation pit structure | |
| CN215800950U (en) | Precast formwork with high durability of capping beam and capping beam | |
| CN201358535Y (en) | Prefabricated slab used for cast-in-situ floorslab | |
| CN205153318U (en) | Rack that hollow core slab used | |
| CN201068621Y (en) | Special-purpose core pile building blocks with heat-insulating layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD. Assignor: Zhong Minzhuyou Co., Ltd Contract record no.: 2017430000027 Denomination of utility model: Prefabricated hollow slab core-buried pore-forming pipe Granted publication date: 20160629 License type: Exclusive License Record date: 20171222 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD. Assignor: Zhong Minzhuyou Co., Ltd Contract record no.: 2017430000027 Date of cancellation: 20180801 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: China Civil Architecture Friends Technology (Jiaozhou) Co., Ltd. Assignor: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD. Contract record no.: 2018430000023 Denomination of utility model: Prefabricated hollow slab core-buried pore-forming pipe Granted publication date: 20160629 License type: Common License Record date: 20190102 |
|
| EE01 | Entry into force of recordation of patent licensing contract |