CN205153318U - Rack that hollow core slab used - Google Patents

Abstract

The utility model provides a rack that hollow core slab used, including a net piece, the ribbed who still is provided with at least one on the net piece and nets the perpendicular setting of piece. So, the net be provided with on the piece at least one with the ribbed of perpendicular settings of net piece after, ribbed has improved the wholeness of rack, makes it when installing to the hollow core slab forming die in, is difficult for swinging the deformation, the rack application is the back to the hollow core slab in, because of its for the single face net, bury back in the concrete rib underground at ribbed, according to its atress performance, will net the piece and arrange the bottom in, then can regard as the floor use, reduced the reinforcing bar quantity of floor by a wide margin, like ribbed adoption band steel or steel sheet or reinforcing bar replacement, formed the dark close rib concrete structure of reinforcing bar, can increase substantially the weight bearing power of floor, improve the factor of safety of plate body.

Description

A kind of rack of precast hollow slab

Technical field

The utility model relates to a kind of building unit, particularly a kind of rack of precast hollow slab.

Background technology

China's Urbanization Construction is fast-developing, and construction scope ranks first in the world.Current, industrialization of construction industry is extremely urgent, and builing industry green construction transition, energy-saving and emission-reduction in building course, manufacture the precast hollow slab with superior structural performance, extremely need 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 concreting, construction period difficulty is large, and template loss is large, and cost is high, and prefabricated building hollowcore 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, be: in the application documents of CN201320705360.2 that disclose a kind of full prefabricated hollow floor, comprise floor main body, floor main body comprises bottom, hollow device and top layer, is hollow device between bottom and top layer at number of patent application; Bottom is that the baseplate reinforcing bar of layer of concrete and top colligation thereof is formed; Top layer is roof steel bar, and concreting layer is formed.This full prefabricated hollow floor is owing to forming cavity at intralamellar part, and alleviate the weight of floor self, comparing laminated floor slab does not also need second pouring, environmental protection and save the duration, but in the manufacturing process of this floor, need colligation baseplate reinforcing bar and roof steel bar, efficiency of construction is lower.

Utility model content

The technical problems to be solved in the utility model is: the rack providing a kind of precast hollow slab, and it can improve the efficiency that precast hollow slab makes.

Solution of the present utility model is achieved in that a kind of rack of precast hollow slab, comprises a mesh sheet, described mesh sheet is also provided with at least one and the vertically disposed rib of mesh sheet.So, after mesh sheet being provided with at least one and the vertically disposed rib of mesh sheet, rib improves the globality of rack, make it when being mounted in precast hollow board forming die, not easily swinging deformation, described rack is applied to after in precast hollow slab, because it is one-side net, be embedded in after in concrete rib at rib, according to its stress performance, mesh sheet is placed in bottom, then can be used as floor to use, considerably reduce the amount of reinforcement of floor, as rib adopts band steel or steel plate or reinforcing bar to replace, define the dark close rib concrete structure of reinforcing bar, the weight bearing power of floor can be increased substantially, improve the safety factor of plate body.

Another technical scheme of the present utility model is on above-mentioned basis, and described rib is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.So, rib is continuous bending waviness or continuous bending when becoming reinforcing bar or the steel wire of W shape, and rib has good continuity, and processing technology is simple, is easy to apply.

Another technical scheme of the present utility model is on above-mentioned basis, and the connection between described rib bending part and mesh sheet is for being welded to connect.So, after being welded to connect between rib bending part and mesh sheet, rib and mesh sheet define entirety, improve the non-deformability of mesh sheet, make it not yielding in application process, be applied to after in precast hollow slab meanwhile, precast hollow slab biside plate face can be connected into entirety by rib, makes its distortion that not easily misplaces.

Another technical scheme of the present utility model is on above-mentioned basis, and the opposite side bending part of described rib is provided with at least one dowel, and rib is connected into mesh sheet at bending part by described dowel.So, the opposite side bending part of rib is provided with at least one dowel, dowel is after rib is connected into mesh sheet by bending part, and rib is in same plane, has increased substantially the non-deformability of rib, makes it not yielding in application process.

Another technical scheme of the present utility model is, on above-mentioned basis, to be provided with oblique pull reinforcing bar in described mesh sheet.So, be provided with oblique pull reinforcing bar in mesh sheet, the bulk strength of mesh sheet obtains reinforcement, is applied to after in precast hollow slab, and oblique pull reinforcing bar can increase substantially the shear resistance in precast hollow slab plate face, can reduce its thickness further.

Another technical scheme of the present utility model is on above-mentioned basis, and described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.So, be provided with hanging built-in fitting oblique pull is end reinforced, burying underground of suspender member in precast hollow slab can be facilitated, the load-bearing load of suspender member can be improved, make it not fragile in handling process.

Another technical scheme of the present utility model is, on above-mentioned basis, described mesh sheet to be provided with locating part, and described locating part is that rib portions protrudes formation.So, rib mesh sheet is provided with locating part, described locating part is that rib portions protrudes formation, in the manufacturing process of precast hollow slab, pore-forming pipe clamp can be located in adjacent rib by locating part, can ensure that pore-forming pipe is in design attitude, thus ensure the thickness of floor and the position of rib in floor accurate, and protruding by rib portions the mode formed like this can not need to arrange locating part separately, reduces cost and technology difficulty.

Another technical scheme of the present utility model is, on above-mentioned basis, described mesh sheet to be provided with locating part, and described locating part is that mesh sheet reinforcing bar part protrudes formation.So, mesh sheet is provided with locating part, described locating part is that mesh sheet reinforcing bar part protrudes formation, in the manufacturing process of precast hollow slab, rack can be arranged in precast hollow board forming die by locating part, can ensure that rack is in design attitude accurate, and, the mode protruded by mesh sheet reinforcing bar part like this can not need to arrange locating part separately, reduces cost and technology difficulty.

Another technical scheme of the present utility model is on above-mentioned basis, and described mesh sheet is double-deck mesh sheet.So, when mesh sheet in rack is double-deck mesh sheet, can further improve the globality of rack, prevent its deformed damaged in installation application process.

Another technical scheme of the present utility model is on above-mentioned basis, is provided with heat insulation layer in described double-deck mesh sheet.So, when being provided with heat insulation layer in double-deck mesh sheet, heat insulation layer can firmly be clamped by double-deck mesh sheet, it is prevented to be shifted in precast hollow slab casting process, fully can ensure the tight continuously of heat insulation layer, described rack is applied to after in precast hollow slab, can significantly promote its thermal and insulating performance.

Another technical scheme of the present utility model is on above-mentioned basis, is provided with pipeline in described double-deck mesh sheet.So, be provided with pipeline in double-deck mesh sheet after, the pre-buried of wireway can be completed, prevent it to be shifted.

Another technical scheme of the present utility model is that, on above-mentioned basis, described pipe end is provided with junction box.So, when pipe end is provided with junction box, disposablely can completes wireway pre-buried, facilitate construction application, not need secondary fluting buried pipeline, be conducive to the globality keeping precast hollow slab.

Another technical scheme of the present utility model is, on above-mentioned basis, described mesh sheet to be provided with pipeline.So, after mesh sheet is provided with pipeline, the pre-buried of wireway can be completed, prevent it to be shifted.

Another technical scheme of the present utility model is on above-mentioned basis, described mesh sheet is provided with and buries core pore-forming pipe, described in bury core pore-forming pipe and mesh sheet interfixes.So, described mesh sheet is provided with and buries core pore-forming pipe, hollowcore slab can be made into like this, and core pore-forming pipe will be buried and mesh sheet interfixes, can prevent in the manufacturing process of hollowcore slab, bury core pore-forming pipe and position skew occurs, thus be difficult to the thickness of controlroof and base plate, the situation causing hollowcore slab internal construction and project organization not to conform to occurs, affects the quality of hollowcore slab.

Another technical scheme of the present utility model is on above-mentioned basis, described in bury core pore-forming pipe and comprise body, described body is through hollow section, and outer surface of tube body is provided with at least one fin or projection.So, when body is through hollow section, when hollow section is applied in precast hollow slab, its end is through, if also arrange support to loose core mould in hollow section, after pouring concrete completes, mould of support being loosed core is extracted out, so, significantly can reduce pore-forming tube wall thickness, also pore-forming pipe can not be caused to be out of shape, and then the situation that precast hollow slab hole wall can not be caused uneven occur.Similarly, if when hollow section tube wall rigidity is enough to support pouring concrete load, does not then need to arrange support and to loose core mould, can reach the uniform effect of hollowcore slab hole wall yet.In addition, fin or projection is also provided with at the external surface of body, in the process making precast hollow slab, fin or projection can play supporting and location effect, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab, if the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, how empty rib can also be formed in precast hollow slab, be conducive to reducing concrete heat bridge, improve the heat-proof quality of precast hollow slab.

Another technical scheme of the present utility model is on above-mentioned basis, and described fin is longitudinally arranged at tube surfaces, or described projection longitudinal separation spread configuration is in tube surfaces.So, described fin is longitudinally arranged at tube surfaces, or described projection longitudinal separation spread configuration is in tube surfaces, in the process making precast hollow slab, fin or projection and precast hollow board forming die die face support and combine, then can play supporting and location effect, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab, if and the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, how empty rib can also be formed in precast hollow slab, be conducive to reducing concrete heat bridge, improve the heat-proof quality of precast hollow slab.

Another technical scheme of the present utility model is on above-mentioned basis, and described body cross section is rectangle.So, when body cross section is rectangle, described pore-forming pipe is applied to after in precast hollow slab, correspondingly can form through rectangle duct in hollowcore slab inside, 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, on above-mentioned basis, described tube wall to be provided with at least one transverse concave groove.So, when tube wall being provided with at least one transverse concave groove, transverse concave groove improves the side direction bearing capacity of pore-forming pipe, make it not yielding in application process, simultaneously, cast-in-situ concrete also can form concrete structure in transverse concave groove, improves the bonding strength between precast hollow slab two plate faces, prevents its dislocation in lifting and installation process from damaging.

Another technical scheme of the present utility model is, on above-mentioned basis, described body to be provided with at least one align member.So, when body being 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 it from swinging, fully can 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, on above-mentioned basis, described fin or projection to be provided with positioner.So, when fin or projection are provided with positioner, in application process, positioner on described fin or projection can coordinate screens fix with reinforcing bar or steel wire, fin or projection can play longitudinal bracing positioning action, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab.

Another technical scheme of the present utility model is on above-mentioned basis, and described positioner is groove.So, when positioner is groove, in application process, the situation that positioner can coordinate screens fixedly to prevent hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift with reinforcing bar or steel wire very easily occurs, fully ensure that the quality of precast hollow slab.

Another technical scheme of the present utility model is on above-mentioned basis, and described groove is into the large groove of young endoporus.So, when groove is into the large groove of young endoporus, in application process, reinforcing bar or steel wire snap in after in groove, in the process of building cast-in-situ concrete, enter the effect that the large groove of young endoporus can play snap close, thus make reinforcing bar or steel wire be not easy to eject.

Another technical scheme of the present utility model is 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, described pore-forming pipe is applied to after in precast hollow slab, as end also concreting, then can form semiclosed or totally enclosed precast hollow slab, globality, the sound-insulating heat-insulation property of this precast hollow slab are good, in particular improve the bonding strength between precast hollow slab two plate faces, prevent its dislocation in lifting and installation process from damaging.

Another technical scheme of the present utility model is 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 moulding form of precast hollow slab by keeper, the situation preventing pore-forming tube end from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab.

Another technical scheme of the present utility model is on above-mentioned basis, and described fin or projection are arranged on two relative faces of body.So, fin or projection are arranged on two relative faces of body, in application process, fin or projection can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supporting and location, and after multiple pore-forming pipe arrangement, fin or projection cooperatively interact, and can play shaping effect of blocking, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.

Another technical scheme of the present utility model is on above-mentioned basis, and described fin or projection are arranged on four faces of body.So, when on four faces that fin or projection are arranged at body, fin or projection can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supporting and location, simultaneously, after multiple pore-forming pipe arrangement, fin or projection cooperatively interact, and can play and block shaping effect, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.

Another technical scheme of the present utility model is on above-mentioned basis, and the material of described body is plastics, the fin that described body and external surface thereof are arranged or projection global formation.So, when the material of body is plastics, when the fin that described body and external surface thereof are arranged or projection global formation, pore-forming pipe is manufactured convenient and simple, pipe thickness can strictly control, and, fin or the bonding strength between projection and body good, be not easy damage to come off, fully ensure that the quality of pore-forming pipe.

Another technical scheme of the present utility model is on above-mentioned basis, and described fin or projection shift to install on relative two faces of body.So, when fin or projection shift to install on relative two faces of body, in application process, after multiple pore-forming pipe arrangement, the fin shifted to install or projection complement each other to form and block, and can reduce producting process difficulty, be conducive to reducing costs, raise the efficiency.

Another technical scheme of the present utility model is, on above-mentioned basis, described body to be also provided with striker plate.So, can go out to be formed stiffener at body striker plate or strengthen fin, improve the quality of pore-forming pipe further.

Accompanying drawing explanation

The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.

Fig. 1 is the rack cross section structure figure of the precast hollow slab that a kind of embodiment of this programme relates to;

Fig. 2 is the rack cross section structure figure of the precast hollow slab that the another kind of embodiment of this programme relates to;

Fig. 3-Fig. 9 be the precast hollow slab that the another several embodiment of this programme relates to rack on be provided with the structure chart burying core pore-forming pipe;

Figure 10 is the rack of the precast hollow slab that a kind of embodiment of this programme relates to and the disposed thereon assembling schematic diagram burying core pore-forming pipe.

In figure:

1 body 2 fin or projection 20 positioner 3 transverse concave groove

4 enclosing cover 40 keeper 5 align member 10 mesh sheet

11 rib 12 oblique pull reinforcing bar 100 guiding gutters

Detailed description of the invention

Be described in detail the utility model below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.In addition, those skilled in the art, according to the description of presents, can carry out respective combination to the feature in embodiment in presents and in different embodiment.

The utility model embodiment is as follows, refers to Fig. 1 and Fig. 2, a kind of rack of precast hollow slab, comprises a mesh sheet 10, described mesh sheet 10 is also provided with at least one and the vertically disposed rib 11 of mesh sheet 10.So, after mesh sheet 10 being provided with at least one and the vertically disposed rib 11 of mesh sheet 10, rib improves the globality of rack, make it when being mounted in precast hollow board forming die, not easily swinging deformation, described rack is applied to after in precast hollow slab, because it is one-side net, be embedded in after in concrete rib at rib, according to its stress performance, mesh sheet is placed in bottom, then can be used as floor to use, considerably reduce the amount of reinforcement of floor, as rib 11 adopts band steel or steel plate or reinforcing bar to replace, define the dark close rib concrete structure of reinforcing bar, the weight bearing power of floor can be increased substantially, improve the safety factor of plate body.

On the basis of above-described embodiment, in another embodiment of the utility model, as depicted in figs. 1 and 2, described rib 11 can be reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.So, rib 11 is continuous bending waviness or continuous bending when becoming reinforcing bar or the steel wire of W shape, and rib has good continuity, and processing technology is simple, is easy to apply.

On the basis of above-described embodiment, in another embodiment of the utility model, the connection between the bending part of described rib 11 and mesh sheet 10 can adopt and be welded to connect.So, after being welded to connect between rib 11 bending part and mesh sheet 10, rib 11 and mesh sheet 10 define entirety, improve the non-deformability of mesh sheet, make it not yielding in application process, be applied to after in precast hollow slab meanwhile, precast hollow slab biside plate face can be connected into entirety by rib 11, makes its distortion that not easily misplaces.

On the basis of above-described embodiment, in another embodiment of the utility model, the opposite side bending part of described rib 11 can be provided with at least one dowel, and rib 11 is connected into mesh sheet 10 at bending part by described dowel.So, the opposite side bending part of rib 11 is provided with at least one dowel, dowel is after rib 11 is connected into mesh sheet 10 by bending part, and rib is in same plane, has increased substantially the non-deformability of rib, makes it not yielding in application process.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 2, oblique pull reinforcing bar 12 can be provided with in described mesh sheet 10.So, be provided with oblique pull reinforcing bar 12 in mesh sheet 10, the bulk strength of mesh sheet obtains reinforcement, is applied to after in precast hollow slab, and oblique pull reinforcing bar 12 can increase substantially the shear resistance in precast hollow slab plate face, can reduce its thickness further.

On the basis of above-described embodiment, in another embodiment of the utility model, described at least one end of oblique pull reinforcing bar 12 can be provided with hanging built-in fitting.So, oblique pull reinforcing bar 12 end is provided with hanging built-in fitting, burying underground of suspender member in precast hollow slab can be facilitated, the load-bearing load of suspender member can be improved, make it not fragile in handling process.

On the basis of above-described embodiment, in another embodiment of the utility model, described mesh sheet 10 can also be provided with locating part, described locating part can be that rib 11 part protrudes formation.So, rib mesh sheet 10 is provided with locating part, described locating part is that rib 11 part protrudes formation, in the manufacturing process of precast hollow slab, pore-forming pipe clamp can be located in adjacent rib by locating part, can ensure that pore-forming pipe is in design attitude, thus ensure the thickness of floor and the position of rib 11 in floor accurate, and protruding by rib 11 part the mode formed like this can not need to arrange locating part separately, reduces cost and technology difficulty.

On the basis of above-described embodiment, in another embodiment of the utility model, described mesh sheet 10 is provided with locating part, described locating part can be that mesh sheet reinforcing bar part protrudes formation.So, mesh sheet 10 is provided with locating part, described locating part is that mesh sheet reinforcing bar part protrudes formation, in the manufacturing process of precast hollow slab, rack can be arranged in precast hollow board forming die by locating part, can ensure that rack is in design attitude accurate, and, the mode protruded by mesh sheet reinforcing bar part like this can not need to arrange locating part separately, reduces cost and technology difficulty.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 2, described mesh sheet 10 can be Double-level Reticulated sheet.So, when mesh sheet in rack 10 is double-deck mesh sheet, can further improve the globality of rack, prevent its deformed damaged in installation application process.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 2, heat insulation layer can be provided with in described double-deck mesh sheet.So, when being provided with heat insulation layer in double-deck mesh sheet, heat insulation layer can firmly be clamped by double-deck mesh sheet, it is prevented to be shifted in precast hollow slab casting process, fully can ensure the tight continuously of heat insulation layer, described rack is applied to after in precast hollow slab, can significantly promote its thermal and insulating performance.

On the basis of above-described embodiment, in another embodiment of the utility model, in described double-deck mesh sheet, pipeline can be provided with.So, be provided with pipeline in double-deck mesh sheet after, the pre-buried of wireway can be completed, prevent it to be shifted.

On the basis of above-described embodiment, in another embodiment of the utility model, described pipe end can be provided with junction box.So, when pipe end is provided with junction box, disposablely can completes wireway pre-buried, facilitate construction application, not need secondary fluting buried pipeline, be conducive to the globality keeping precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, described mesh sheet 10 can be provided with pipeline.So, after mesh sheet 10 is provided with pipeline, the pre-buried of wireway can be completed, prevent it to be shifted.

On the basis of above-described embodiment, in another embodiment of the utility model, described mesh sheet 10 can be provided with and bury core pore-forming pipe, described in bury core pore-forming pipe and mesh sheet 10 interfixes.So, described mesh sheet 10 is provided with and buries core pore-forming pipe, hollowcore slab can be made into like this, and core pore-forming pipe will be buried and mesh sheet 10 interfixes, can prevent in the manufacturing process of hollowcore slab, bury core pore-forming pipe and position skew occurs, thus be difficult to the thickness of controlroof and base plate, the situation causing hollowcore slab internal construction and project organization not to conform to occurs, affects the quality of hollowcore slab.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figures 3 to 10, described in bury core pore-forming pipe and comprise body 1, described body 1 is through hollow section, and body 1 external surface is provided with at least one fin or projection 2.So, when body 1 is through hollow section, when hollow section is applied in precast hollow slab, its end is through, if also arrange support to loose core mould in hollow section, after pouring concrete completes, mould of support being loosed core is extracted out, so, significantly can reduce pore-forming tube wall thickness, also pore-forming pipe can not be caused to be out of shape, and then the situation that precast hollow slab hole wall can not be caused uneven occur.Similarly, if when hollow section tube wall rigidity is enough to support pouring concrete load, does not then need to arrange support and to loose core mould, can reach the uniform effect of hollowcore slab hole wall yet.In addition, fin or projection is also provided with at the external surface at body, in the process making precast hollow slab, fin or projection can play supporting and location effect, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab, if the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, how empty rib can also be formed in precast hollow slab, be conducive to reducing concrete heat bridge, improve the heat-proof quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figures 3 to 10, described fin or projection 2 longitudinally can be arranged at body 1 surface.So, when fin or projection 2 longitudinal separation spread configuration are in body 1 surface, in the process making precast hollow slab, fin or projection and precast hollow board forming die die face support and combine, then can play supporting and location effect, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab, if and the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, how empty rib can also be formed in precast hollow slab, be conducive to reducing concrete heat bridge, improve the heat-proof quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figures 3 to 10, described body 1 cross section can be rectangle.So, when body 1 cross section is rectangle, described pore-forming pipe is applied to after in precast hollow slab, correspondingly can form through rectangle duct in hollowcore slab inside, 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 also can be circular or ellipse or other polygons etc., and these also all 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 the utility model, as shown in Figure 6, 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 side direction bearing capacity of pore-forming pipe, make it not yielding in application process, simultaneously, cast-in-situ concrete also can form concrete structure in transverse concave groove 3, improves the bonding strength between precast hollow slab two plate faces, prevents its dislocation in lifting and installation process from damaging.In addition, guiding gutter 100 can also be provided with in one end of described body 1, the hydrops between body can be discharged like this.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 4 and Figure 5, described body 1 can be provided with at least one align member 5.So, when body 1 being provided with at least one align member 5, described pore-forming pipe is in application process, align member 5 can be supported on precast hollow board forming die, pore-forming pipe can be fixed in precast hollow board forming die, prevent it from swinging, fully can 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 the utility model, as shown in Figure 7, described fin or projection 2 can be provided with positioner 20.So, when fin or projection 2 are provided with positioner 20, in application process, positioner 20 on described fin or projection 2 can coordinate screens fix with reinforcing bar or steel wire, fin or projection 2 can play longitudinal bracing positioning action, the situation preventing hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 7, described positioner 20 can be groove.So, when positioner 20 is groove, in application process, the situation that positioner 20 can coordinate screens fixedly to prevent hollow section from causing hollowcore slab internal construction and project organization not to conform at mould internal shift with reinforcing bar or steel wire very easily occurs, fully ensure that the quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, described groove can be the groove that the little endoporus of entrance is large.So, when groove is into the large groove of young endoporus, in application process, reinforcing bar or steel wire snap in after in groove, in the process of building cast-in-situ concrete, enter the effect that the large groove of young endoporus can play snap close, thus make reinforcing bar or steel wire be not easy to eject.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 7, 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, described pore-forming pipe is applied to after in precast hollow slab, as end also concreting, then can form semiclosed or totally enclosed precast hollow slab, globality, the sound-insulating heat-insulation property of this precast hollow slab are good, in particular improve the bonding strength between precast hollow slab two plate faces, prevent its dislocation in lifting and installation process from damaging.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 7, 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 moulding form of precast hollow slab by keeper 40, the situation preventing pore-forming tube end from causing hollowcore slab internal construction and project organization not to conform at mould internal shift occurs, fully ensure that the quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 3 and Figure 4, described fin or projection 2 can be arranged on two relative faces of body 1.So, fin or projection 2 are arranged on two relative faces of body 1, in application process, fin or projection 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supporting and location, and after multiple pore-forming pipe arrangement, fin or projection 2 cooperatively interact, and can play shaping effect of blocking, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 8 and Figure 9, described fin or projection 2 can be arranged on four faces of body 1.So, when on four faces that fin or projection 2 are arranged at body 1, fin or projection 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supporting and location, simultaneously, after multiple pore-forming pipe arrangement, fin or projection 2 cooperatively interact, and can play and block shaping effect, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.

On the basis of above-described embodiment, in another embodiment of the utility model, the material of described body 1 is plastics, the fin that described body 1 and external surface thereof are arranged or projection 2 global formation.So, when the material of body 1 is plastics, when the fin that described body 1 and external surface thereof are arranged or projection 2 global formation, pore-forming pipe is manufactured convenient and simple, pipe thickness can strictly control, and, fin or the bonding strength between projection 2 and body 1 good, be not easy damage to come off, fully ensure that the quality of pore-forming pipe.

On the basis of above-described embodiment, in another embodiment of the utility model, as shown in figs. 5 and 9, described fin or projection 2 shift to install on relative two faces of body 1.So, when fin or projection 2 shift to install on relative two faces of body 1, in application process, after multiple pore-forming pipe arrangement, the fin shifted to install or projection 2 complement each other to form and block, and can reduce producting process difficulty, be conducive to reducing costs, raise the efficiency.

The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (30)

1. a rack for precast hollow slab, comprises a mesh sheet, it is characterized in that, described mesh sheet is also provided with at least one and the vertically disposed rib of mesh sheet.

2. the rack of precast hollow slab according to claim 1, is characterized in that, described rib is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.

3. the rack of precast hollow slab according to claim 2, is characterized in that, the connection between described rib bending part and mesh sheet is for being welded to connect.

4. the rack of precast hollow slab according to claim 3, is characterized in that, the opposite side bending part of described rib is provided with at least one dowel, and rib is connected into mesh sheet at bending part by described dowel.

5. the rack of the precast hollow slab according to claim arbitrary in Claims 1-4, is characterized in that, is provided with oblique pull reinforcing bar in described mesh sheet.

6. the rack of precast hollow slab according to claim 5, is characterized in that, described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.

7. the rack of the precast hollow slab according to claim arbitrary in Claims 1-4, is characterized in that, described mesh sheet is provided with locating part, and described locating part is that rib portions protrudes formation.

8. the rack of the precast hollow slab according to claim arbitrary in Claims 1-4, is characterized in that, described mesh sheet is provided with locating part, and described locating part is that mesh sheet reinforcing bar part protrudes formation.

9. the rack of the precast hollow slab according to claim arbitrary in Claims 1-4, is characterized in that, described mesh sheet is double-deck mesh sheet.

10. the rack of precast hollow slab according to claim 9, is characterized in that, is provided with heat insulation layer in described double-deck mesh sheet.

The rack of 11. precast hollow slabs according to claim 9, is characterized in that, is provided with pipeline in described double-deck mesh sheet.

The rack of 12. precast hollow slabs according to claim 11, is characterized in that, described pipe end is provided with junction box.

The rack of 13. precast hollow slabs according to any one of claim 1 to 4, is characterized in that, described mesh sheet is provided with pipeline.

The rack of 14. precast hollow slabs according to claim 13, is characterized in that, described pipe end is provided with junction box.

The rack of 15. precast hollow slabs according to any one of claim 1 to 4, is characterized in that, described mesh sheet is provided with and buries core pore-forming pipe, described in bury core pore-forming pipe and mesh sheet interfixes.

The rack of 16. precast hollow slabs according to claim 15, is characterized in that, described in bury core pore-forming pipe and comprise body, described body is through hollow section, and outer surface of tube body is provided with at least one fin or fin or projection.

The rack of 17. precast hollow slabs according to claim 16, is characterized in that, described fin is longitudinally arranged at tube surfaces, or described fin or projection longitudinal separation spread configuration are in tube surfaces.

The rack of 18. precast hollow slabs according to claim 16, is characterized in that, described body cross section is rectangle.

The rack of 19. precast hollow slabs according to claim 18, is characterized in that, described tube wall is provided with at least one transverse concave groove.

The rack of 20. precast hollow slabs according to claim 18, is characterized in that, described body is provided with at least one align member.

The rack of 21. precast hollow slabs according to claim 16, is characterized in that, described fin or fin or projection are provided with positioner.

The rack of 22. precast hollow slabs according to claim 21, is characterized in that, described positioner is groove.

The rack of 23. precast hollow slabs according to claim 22, is characterized in that, described groove is into the large groove of young endoporus.

The rack of 24. precast hollow slabs according to claim 16, is characterized 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.

The rack of 25. precast hollow slabs according to claim 24, is characterized in that, described enclosing cover end is provided with keeper, and described keeper is arranged at enclosing cover edge or cover bottom portion.

The rack of 26. precast hollow slabs according to claim 16, is characterized in that, described fin or fin or projection are arranged on two relative faces of body.

The rack of 27. precast hollow slabs according to claim 16, is characterized in that, described fin or fin or projection are arranged on four faces of body.

The rack of 28. precast hollow slabs according to claim 16, is characterized in that, the material of described body is plastics, the fin that described body and external surface thereof are arranged or fin or projection global formation.

The rack of 29. precast hollow slabs according to claim 26, is characterized in that, described fin or fin or projection shift to install on relative two faces of body.

The rack of 30. precast hollow slabs according to claim 16, is characterized in that, described body is also provided with striker plate.