CN205348558U - Rack for hollow core slab - Google Patents

Abstract

The utility model provides a rack for hollow core slab, including two net pieces, two relative intervals of net piece set up, are provided with at least one two board connecting device between two net pieces. So, after two nets were provided with at least one two board connecting device between the pieces, two board connecting device had improved the wholeness of rack, made it when installing to the hollow core slab forming die in, and difficult swing is warp. Furthermore, because of being provided with two board connecting device between the net piece, then arrange once whole shaping of hollow core slab forming die in, hollow core slab's wholeness ability has greatly been improved, particularly, the crucial is if adopt the technology preparation of loosing core, the big empty core plate that then can obtain only having two board connecting device to connect between two boards, when two board connecting device are the good material of heat -proof quality, heat channel between the plate body can maximum radius cut off, hollow core slab's thermal insulation properties has been increased substantially.

Description

A kind of precast hollow slab rack

Technical field

This utility model relates to a kind of building element, particularly to a kind of precast hollow slab rack.

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, needing colligation baseplate reinforcing bar and roof steel bar, efficiency of construction is relatively low, and inconvenience installed by panel.

Utility model content

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

Solution of the present utility model is achieved in that a kind of precast hollow slab rack, includes two mesh sheet, and said two mesh sheet relative spacing is arranged, and is provided with at least one two board connecting equipment between two mesh sheet.So, after being provided with at least one two board connecting equipment between two mesh sheet, two board connecting equipments improve the globality of rack, make it when being mounted in precast hollow board forming die, not easily swinging deformation, after described rack is applied in precast hollow slab, because it is two-sided mesh sheet rack, precast hollow slab biside plate volume property is uniform, in addition, because being provided with two board connecting equipments between mesh sheet, it is subsequently placed in precast hollow board forming die Integratively formed, drastically increase the overall performance of precast hollow slab, particularly critical is as adopted technique of loosing core to make, then can obtain only having between two plates the big cored slab that two board connecting equipments connect, when two board connecting equipments are the good material of heat-proof quality, heat bridge between plate body is able to the cut-out of amplitude peak, the thermal and insulating performance of precast hollow slab is greatly improved, gained precast hollow slab is especially suitable for use as exterior wall and uses.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described two board connecting equipments are joint pin.So, adopt joint pin reduce further heat bridge area of section as two board connecting equipments, after application to precast hollow slab after, the heat-transfer capability between two plate bodys of described precast hollow slab is able to further reduction, improves the heat-proof quality of precast hollow slab.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described rib two board connecting equipment is connection strap or attachment plate.So, two board connecting equipments are connection strap or attachment plate, described two board connecting equipments are vertically arranged, after application to precast hollow slab after, the two vertical restraining forceies of plate body of described precast hollow slab are greatly improved, make it that dislocation will not be occurred in handling process to damage, fully ensured that the quality of precast hollow slab, reduced loss.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described two board connecting equipments are for connecting rack or framework.So, when two board connecting equipments for connect rack, after application to precast hollow slab after, two plate bodys of described precast hollow slab are vertically all greatly improved with lateral confinement power, make it that dislocation will not be occurred in handling process to damage, fully ensured that the quality of precast hollow slab, reduced loss.

Another technical scheme of the present utility model is in that on above-mentioned basis, and the material of described two board connecting equipments is fibre reinforced plastics.So, when the material of two board connecting equipments is fibre reinforced plastics, after application to precast hollow slab after, the heat bridge between plate body is able to the cut-out of amplitude peak, the thermal and insulating performance of precast hollow slab is greatly improved, and gained precast hollow slab is especially suitable for use as exterior wall and uses.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described two board connecting equipments are composite construction, and it is internally provided with metallic core, is coated with plastics or rubber outside described metallic core.So, the intensity of two board connecting equipments itself, shearing resistance and torsional property are greatly improved, after application to precast hollow slab after so that it is will not occur in handling process dislocation damage, fully ensured that the quality of precast hollow slab, reduced loss.

Another technical scheme of the present utility model is in that on above-mentioned basis, and one end or the two ends of described two board connecting equipments are provided with anchor.So, after application to precast hollow slab after, the end of two board connecting equipments is firmly anchored in concrete, make it not easily loosen, after application to precast hollow slab after so that it is will not occur in handling process dislocation damage, fully ensure that the quality of precast hollow slab, reduce loss.

Another technical scheme of the present utility model is in that on above-mentioned basis, and one end of described two board connecting equipments or two ends are provided with the fixing device of screens, and the fixing device of screens coordinates location with mesh sheet.So, convenient and simple for connection between two board connecting equipments and mesh sheet, it is easy to make, it is only necessary to two board connecting equipments and mesh sheet to be worked in coordination and blocks, advantageously reduce the cost of manufacture of precast hollow slab, it is easy to popularization and application.

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

Another technical scheme of the present utility model is in that on above-mentioned basis, and described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.So, it is provided with hanging built-in fitting oblique pull is end reinforced, it is possible to facilitate burying underground of suspender member in precast hollow slab, the load-bearing load of suspender member can be improved so that it is be hardly damaged in handling process.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described mesh sheet is 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, it is ensured that pore-forming pipe is in design attitude, thus ensureing that the thickness of floor and rib position in floor are accurate, and, so protrude, by rib portions, the mode formed and can be separately provided locating part, reduce cost and technology difficulty.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described mesh sheet is 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, it is ensured that it is accurate that rack is in design attitude, and, the mode so protruded by mesh sheet reinforcing bar part can be separately provided locating part, reduces cost and technology difficulty.

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

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

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

Another technical scheme of the present utility model is in that, on above-mentioned basis, described pipe end is provided with rosette.So, when pipe end is provided with rosette, it is possible to disposable to complete wireway pre-buried, facilitates construction application, it is not necessary to secondary fluting buried pipeline, be conducive to keeping the globality of precast hollow slab.

Another technical scheme of the present utility model is in that, 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, it is prevented that its displacement.

Another technical scheme of the present utility model is in that on above-mentioned basis, it is provided with at least one between said two mesh sheet and buries core pore-forming pipe, described two board connecting equipments are disposed through burying in core pore-forming pipe, or two core pore-forming pipe tight fits of burying being disposed adjacent are arranged, and two board connecting equipments are disposed through burying between core pore-forming pipe.So, time after application to precast hollow slab, non-technique of loosing core can be adopted to make precast hollow slab, eliminate operation of loosing core, the production equipment requirements of precast hollow slab is greatly lowered, it is only necessary to mould can produce, simplify production equipment, advantageously reduce cost of manufacture.

Another technical scheme of the present utility model is in that on above-mentioned basis, described in bury core pore-forming pipe and include body, described body is through hollow pipe, is provided with at least one fin or projection at outer surface of tube 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 and occurs.Similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then support need not be set and loose core mould, it is also possible to reach the uniform effect of cored slab hole wall.Additionally, outer surface at body is additionally provided with fin or projection, in the process making precast hollow slab, fin or projection can play support 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, if the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.

Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin is longitudinally disposed at tube surfaces, or described projection longitudinal separation spread configuration is in tube surfaces.So, described fin is longitudinally disposed 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 support 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, if and the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.

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 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 to fix with reinforcing bar or steel wire, fin or projection 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 or projection are arranged on two faces that body is relative.So, fin or projection are arranged on two faces that body is relative, 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 supports location, and after multiple pore-forming bank of tubes row, fin or projection cooperate, it is possible to play the effect blocking molding, 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 in that on above-mentioned basis, and described fin or projection are arranged on four faces of body.So, when fin or projection are arranged on four faces of body, fin or projection 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 or projection cooperate, it is possible to play the effect blocking molding, 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 in that on above-mentioned basis, and the material of described body is plastics, fin that described body and outer surface thereof are arranged or projection global formation.So, when the material of body is plastics, when the fin of described body and outer surface setting thereof 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 are good, it is not easy damage to come off, fully ensures 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 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 bank of tubes row, the fin shifted to install or projection complement each other to form and block, it is possible to reduce producting process difficulty, advantageously reduce cost, improve efficiency.

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

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

Fig. 2 is the precast hollow slab rack that a kind of embodiment of this programme relates to and the assembling schematic diagram burying core pore-forming pipe；

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

Figure 10-Figure 13 is several structure charts of two board connecting equipments in the precast hollow slab rack that several embodiment of this programme relates to.

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

Device 103 anchor is fixed in the screens of 101 liang of board connecting equipments 102

100 guiding gutters

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 and Fig. 2, a kind of precast hollow slab rack, includes two mesh sheet 10, and said two mesh sheet 10 relative spacing is arranged, and is provided with at least one two board connecting equipment 101 between two mesh sheet 10.So, after being provided with at least one two board connecting equipment 101 between two mesh sheet 10, two board connecting equipments 101 improve the globality of rack, make it when being mounted in precast hollow board forming die, not easily swinging deformation, after described rack is applied in precast hollow slab, because it is two-sided mesh sheet rack, precast hollow slab biside plate volume property is uniform, in addition, because being provided with two board connecting equipments 101 between mesh sheet, it is subsequently placed in precast hollow board forming die Integratively formed, drastically increase the overall performance of precast hollow slab, particularly critical is as adopted technique of loosing core to make, then can obtain only having between two plates the big cored slab that two board connecting equipments 101 connect, when two board connecting equipments 101 are the good material of heat-proof quality, heat bridge between plate body is able to the cut-out of amplitude peak, the thermal and insulating performance of precast hollow slab is greatly improved, gained precast hollow slab is especially suitable for use as exterior wall and uses.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 1, Figure 2, shown in Figure 10 to Figure 13, described two board connecting equipments 101 can be joint pin, specifically can adopt several structures of diagram.So, adopt joint pin reduce further heat bridge area of section as two board connecting equipments 101, after application to precast hollow slab after, the heat-transfer capability between two plate bodys of described precast hollow slab is able to further reduction, improves the heat-proof quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of this utility model, described rib two board connecting equipment 101 can also be connection strap or attachment plate (such as Figure 12 and 13).So, two board connecting equipments 101 are connection strap or attachment plate, described two board connecting equipments 101 are vertically arranged, after application to precast hollow slab after, the two vertical restraining forceies of plate body of described precast hollow slab are greatly improved, make it that dislocation will not be occurred in handling process to damage, fully ensured that the quality of precast hollow slab, reduced loss.

On the basis of above-described embodiment, in another embodiment of this utility model, described two board connecting equipments 101 can also be connect rack or framework.So, when two board connecting equipments 101 are for connecting rack, after application to precast hollow slab after, two plate bodys of described precast hollow slab are vertically all greatly improved with lateral confinement power, make it that dislocation will not be occurred in handling process to damage, fully ensure that the quality of precast hollow slab, reduce loss.

On the basis of above-described embodiment, in another embodiment of this utility model, the material of described two board connecting equipments 101 can be fibre reinforced plastics.So, when the material of two board connecting equipments 101 is fibre reinforced plastics, after application to precast hollow slab after, the heat bridge between plate body is able to the cut-out of amplitude peak, the thermal and insulating performance of precast hollow slab is greatly improved, and gained precast hollow slab is especially suitable for use as exterior wall and uses.

On the basis of above-described embodiment, in another embodiment of this utility model, described two board connecting equipments 101 can also be composite construction, and it is internally provided with metallic core, is coated with plastics or rubber outside described metallic core.So, the intensity of two board connecting equipments 101 itself, shearing resistance and torsional property are greatly improved, after application to precast hollow slab after so that it is dislocation will not be occurred in handling process to damage, fully ensured that the quality of precast hollow slab, reduced loss.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 1, Figure 2, shown in Figure 10 to Figure 13, one end or the two ends of described two board connecting equipments 101 all can be provided with anchor 103.So, after application to precast hollow slab after, the end of two board connecting equipments 101 is firmly anchored in concrete, make it not easily loosen, after application to precast hollow slab after so that it is will not occur in handling process dislocation damage, fully ensure that the quality of precast hollow slab, reduce loss.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 1, Figure 2, shown in Figure 10 to Figure 13, one end of described two board connecting equipments 101 or two ends can also be provided with the fixing device 102 of screens, and the fixing device 102 of screens coordinates location with mesh sheet.So, convenient and simple for connection between two board connecting equipments 101 and mesh sheet, it is easy to make, it is only necessary to two board connecting equipments 101 to be worked in coordination with mesh sheet and blocks, advantageously reduce the cost of manufacture of precast hollow slab, it is easy to popularization and application.

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

On the basis of above-described embodiment, in another embodiment of this utility model, described at least one end of oblique pull reinforcing bar can be provided with hanging built-in fitting.So, it is provided with hanging built-in fitting oblique pull is end reinforced, it is possible to facilitate burying underground of suspender member in precast hollow slab, the load-bearing load of suspender member can be improved so that it is be hardly damaged in handling process.

On the basis of above-described embodiment, in another embodiment of this utility model, described mesh sheet 10 being also provided with locating part, described locating part can protrude for rib portions and be formed.So, rib mesh sheet 10 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, it is ensured that pore-forming pipe is in design attitude, thus ensureing that the thickness of floor and rib position in floor are accurate, and, so protrude, by rib portions, the mode formed and can be separately provided locating part, reduce cost and technology difficulty.

On the basis of above-described embodiment, in another embodiment of this utility model, described mesh sheet 10 being 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, it is ensured that it is accurate that rack is in design attitude, and, the mode so protruded by mesh sheet reinforcing bar part can be separately provided locating part, reduces cost and technology difficulty.

On the basis of above-described embodiment, in another embodiment of this utility model, as in figure 2 it is shown, described mesh sheet 10 can be Double-level Reticulated sheet.So, when mesh sheet 10 is double-deck mesh sheet in rack, can further improve the globality of rack, it is prevented that it is deformed damaged in installing application process.

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

On the basis of above-described embodiment, in another embodiment of this utility model, described double-deck mesh sheet can be provided with pipeline.So, after being provided with pipeline in double-deck mesh sheet, the pre-buried of wireway can be completed, it is prevented that its displacement.

On the basis of above-described embodiment, in another embodiment of this utility model, described pipe end can be provided with rosette.So, when pipe end is provided with rosette, it is possible to disposable to complete wireway pre-buried, facilitates construction application, it is not necessary to secondary fluting buried pipeline, be conducive to keeping the globality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of this 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, it is prevented that its displacement.

On the basis of above-described embodiment, in another embodiment of this utility model, it is provided with at least one between said two mesh sheet 10 and buries core pore-forming pipe, described two board connecting equipments 101 are disposed through burying in core pore-forming pipe, or two core pore-forming pipe tight fits of burying being disposed adjacent are arranged, and two board connecting equipments 101 are disposed through burying between core pore-forming pipe.So, time after application to precast hollow slab, non-technique of loosing core can be adopted to make precast hollow slab, eliminate operation of loosing core, the production equipment requirements of precast hollow slab is greatly lowered, it is only necessary to mould can produce, simplify production equipment, advantageously reduce cost of manufacture.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Fig. 3 to Fig. 9, described in bury core pore-forming pipe and include body 1, described body 1 is through hollow pipe, is provided with at least one fin or projection 2 at body 1 outer surface.So, when body 1 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 and occurs.Similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then support need not be set and loose core mould, it is also possible to reach the uniform effect of cored slab hole wall.Additionally, fin or projection it is additionally provided with at the outer surface at body, in the process making precast hollow slab, fin or projection can play support 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, if the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Fig. 3 to Fig. 9, described fin or projection 2 can be longitudinally disposed 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 support 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, if and the position of fin or projection is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.

On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Fig. 3 to Fig. 9, 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 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 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.It addition, be also provided with guiding gutter 100 in one end of described body 1, so the hydrops between body can be discharged.

On the basis of above-described embodiment, in another embodiment of this 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 is 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 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 it is shown in fig. 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 to fix with reinforcing bar or steel wire, fin or projection 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 it is shown in fig. 7, 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, 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 it is shown in fig. 7, at least one end of described body 1 can be provided with enclosing cover 4, 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 it is shown in fig. 7, described enclosing cover 4 end can be provided with keeper 40, 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 shown in Figure 3 and Figure 4, described fin or projection 2 can be arranged on two faces that body 1 is relative.So, fin or projection 2 are arranged on two faces that body 1 is relative, 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 supports location, and after multiple pore-forming bank of tubes row, fin or projection 2 cooperate, it is possible to play the effect blocking molding, 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 this 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 fin or projection 2 are arranged on four faces of 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 supports location, simultaneously, after multiple pore-forming bank of tubes row, fin or projection 2 cooperate, it is possible to play the effect blocking molding, 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 this utility model, the material of described body 1 is plastics, fin that described body 1 and outer surface thereof are arranged or projection 2 global formation.So, when the material of body 1 is plastics, when the fin of described body 1 and outer surface setting thereof 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 are 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, 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 bank of tubes row, the fin or the projection 2 that shift to install complement each other to form and block, it is possible to reduce producting process difficulty, advantageously reduce cost, improve efficiency.

On the basis of above-described embodiment, in another embodiment of this utility model, described body is additionally provided with striker plate.So, it is possible to go out to be formed at body striker plate and strengthen plate or strengthen fin, improve the quality of pore-forming pipe further.

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 (32)

1. a precast hollow slab rack, includes two mesh sheet, it is characterised in that said two mesh sheet relative spacing is arranged, and is provided with at least one two board connecting equipment between two mesh sheet.

2. precast hollow slab rack according to claim 1, it is characterised in that described two board connecting equipments are joint pin.

3. precast hollow slab rack according to claim 1, it is characterised in that described two board connecting equipments are connection strap or attachment plate.

4. precast hollow slab rack according to claim 1, it is characterised in that described two board connecting equipments are for connecting rack or framework.

5. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that the material of described two board connecting equipments is fibre reinforced plastics.

6. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that described two board connecting equipments are composite construction, it is internally provided with metallic core, is coated with plastics or rubber outside described metallic core.

7. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that one end or the two ends of described two board connecting equipments are provided with anchor.

8. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that one end of described two board connecting equipments or two ends are provided with the fixing device of screens, and the fixing device of screens coordinates location with mesh sheet.

9. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that be provided with oblique pull reinforcing bar in described mesh sheet.

10. precast hollow slab rack according to claim 9, it is characterised in that described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.

11. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that be provided with locating part in described mesh sheet, described locating part is that rib portions protrudes formation.

12. the precast hollow slab rack according to any claim in Claims 1-4, it is characterised in that described mesh sheet is double-deck mesh sheet.

13. precast hollow slab rack according to claim 12, it is characterised in that be provided with heat insulation layer in described double-deck mesh sheet.

14. precast hollow slab rack according to claim 12, it is characterised in that be provided with pipeline in described double-deck mesh sheet.

15. precast hollow slab rack according to claim 14, it is characterised in that described pipe end is provided with rosette.

16. precast hollow slab rack according to any one of claim 1 to 4, it is characterised in that be provided with pipeline in described mesh sheet.

17. precast hollow slab rack according to claim 16, it is characterised in that described pipe end is provided with rosette.

18. precast hollow slab rack according to any one of claim 1 to 4, it is characterized in that, it is provided with at least one between said two mesh sheet and buries core pore-forming pipe, described two board connecting equipments are disposed through burying in core pore-forming pipe, or two core pore-forming pipe tight fits of burying being disposed adjacent are arranged, and two board connecting equipments are disposed through burying between core pore-forming pipe.

19. precast hollow slab rack according to claim 18, it is characterised in that described in bury core pore-forming pipe and include body, described body is through hollow pipe, is provided with at least one fin or projection at outer surface of tube body.

20. precast hollow slab rack according to claim 19, it is characterised in that described fin is longitudinally disposed at tube surfaces, or described projection longitudinal separation spread configuration is in tube surfaces.

21. precast hollow slab rack according to claim 19, it is characterised in that described body cross section is rectangle.

22. precast hollow slab rack according to claim 21, it is characterised in that be provided with at least one transverse concave groove on described tube wall, the pore-forming pipe being disposed adjacent is close to coordinate and constitutes through hole, and two board connecting equipments are arranged in groove.

23. precast hollow slab rack according to claim 21, it is characterised in that be provided with at least one align member on described body.

24. precast hollow slab rack according to claim 19, it is characterised in that be provided with positioner on described fin or projection.

25. precast hollow slab rack according to claim 24, it is characterised in that described positioner is groove.

26. precast hollow slab rack according to claim 25, it is characterised in that described groove is the groove that the little endoporus of entrance is big.

27. precast hollow slab rack according to claim 19, it is characterised in that at least one end of described body is provided with enclosing cover, body is closed into blind pipe or closed hollow pipe by described enclosing cover.

28. precast hollow slab rack according to claim 27, 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.

29. precast hollow slab rack according to claim 19, it is characterised in that described fin or projection are arranged on two faces that body is relative.

30. the fin that precast hollow slab rack according to claim 19, it is characterised in that the material of described body is plastics, described body and outer surface thereof are arranged or projection global formation.

31. precast hollow slab rack according to claim 29, it is characterised in that described fin or projection shift to install on relative two faces of body.

32. precast hollow slab rack according to claim 19, it is characterised in that be additionally provided with striker plate on described body.