CN212376111U - Inorganic bearing purlin bearing combination roofing floor - Google Patents

Inorganic bearing purlin bearing combination roofing floor Download PDF

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CN212376111U
CN212376111U CN201921931464.9U CN201921931464U CN212376111U CN 212376111 U CN212376111 U CN 212376111U CN 201921931464 U CN201921931464 U CN 201921931464U CN 212376111 U CN212376111 U CN 212376111U
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bearing
inorganic
load
purline
purlin
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潘旭鹏
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Abstract

The utility model relates to an inorganic bearing purlin bearing combined roof floor, wherein the inorganic bearing purlin (1) adopts an inorganic material vacuum extrusion cavity body, reinforcing steel bars or fiber tows (4) are uniformly distributed at the middle position of the plane of the bottom end plate of the inorganic bearing purlin (1) during the extrusion of the purlin, after the inorganic bearing purlin (1) is solidified, dried and formed, the bottom ends of the two end heads of the inorganic bearing purline (1) are horizontally and/or laterally connected and fixedly connected with steel plates (3) or section steel by welding or bolts, the steel plates (3) or the section steel at the bottom ends of the two end heads of the inorganic bearing purline (1) are effectively connected with the main body bearing structure part into a whole, bearing plate plates (2) are respectively arranged between the upper surface and the lower surface of the two inorganic bearing purlines (1), thermal insulation or sound insulation materials (5) are filled between the two inorganic bearing purlines (1) and in the space of the bearing plate (2). The utility model discloses self has good heat preservation, sound insulation, sound absorption performance.

Description

Inorganic bearing purlin bearing combination roofing floor
Technical Field
The utility model relates to a building technical field especially relates to an inorganic bearing purlin bearing combination roofing floor.
Background
At present, the existing light roof boards and floor boards generally adopt steel frameworks as main bearing stress structures or auxiliary structures, the steel frameworks as the main stress structures are subjected to self-structure stress checking calculation through the integral roof boards or floor slabs, self structural design is completed, upper and lower surface layers and heat-insulation and sound-insulation materials only play a role in auxiliary functions, and the steel frameworks are rarely involved in structural stress systems. Although the bearing plate is good in stress, the bearing plate is high in steel manufacturing cost, complex in production and manufacturing procedures, small in capacity, large in product size and area, inconvenient for mass mechanical construction production, high in manufacturing, transporting and installing cost and not easy to accept by users, and belongs to the customization category. Thus, improvements are still needed.
The existing light roof boards and floor boards can also adopt a C-shaped steel structure form as a peripheral frame of a roof board floor slab, auxiliary steel bars and steel ribs are locally arranged at the middle part, then cement foaming materials, cement perlite or polyphenyl particle materials are adopted for filling, and fiber cement reinforcing materials are adopted for reinforcing the surface layer up and down. This bearing panel heat preservation leads to inside steel rib corrosion easily when meeting water owing to receive the influence of weight control factor. When the temperature of the external use environment reaches the freezing point, the plate heat-insulating layer is easy to freeze and expand, so that the strength of the heat-insulating layer is reduced, the strength of the whole plate is influenced, and the heat-insulating property of the plate can not meet the standard requirement of building energy conservation. In addition, the manufacturing process is complicated due to the fact that the manufacturing cost of the product contains a certain amount of steel, the occupied area is large, and the product cost is not low. Thus, improvements are still needed.
The Chinese invention patent with the patent number ZL201310509235.9 discloses a roof panel, which comprises a truss structure (C-shaped steel frame structure), upper and lower bearing surface layers and a heat insulation filling layer, wherein the heat insulation filling layer is an intermediate layer inside the truss structure (C-shaped steel frame structure) of the roof panel, and the upper and lower surfaces of the truss structure (C-shaped steel frame structure) are connected with the bearing surface layers; the bearing surface layer comprises glass fibers, a reinforcing material, a magnesium-containing composite material layer and a filler, the upper layer and the lower layer of the bearing surface layer are made of the glass fibers, and the lower layer of the glass fibers of the upper bearing surface layer is provided with a layer of the reinforcing material; the magnesium-containing composite material and the filler are arranged in the middle layer, and the glass fiber and the reinforcing material are combined into the composite material by utilizing the viscosity of the magnesium-containing composite material. The roof plate truss structure (C-shaped steel frame structure) is simple, and the upper and lower bearing surface layers solve the problems of cold bridge and fire prevention of the roof plate structure. Meanwhile, the bearing surface layer can be prefabricated in a factory, on-site forging is not needed, the construction process of the roof panel is simplified, and the quality is easy to control. The truss can be assembled on site, so that the transportation cost is saved, and the truss is convenient to produce, install and construct. However, the invention still has the following technical defects: this bearing panel heat preservation leads to inside steel rib corrosion easily when meeting water owing to receive the influence of weight control factor. When the temperature of the external use environment reaches the freezing point, the plate heat-insulating layer is easy to freeze and expand, so that the strength of the heat-insulating layer is reduced, the strength of the whole plate is influenced, and the heat-insulating property of the plate can not meet the standard requirement of building energy conservation. In addition, the manufacturing process is complicated due to the fact that the manufacturing cost of the product contains a certain amount of steel, the occupied area is large, and the product cost is not low. Thus, improvements are still needed.
A Chinese patent with patent number ZL200610077566.X discloses a light assembled heat preservation roof board and a process method thereof. Is characterized in that: the composite bearing heat-insulating surface layer is divided into an upper inorganic surface layer and a lower inorganic surface layer, and the middle is a polystyrene heat-insulating plate. The two inorganic surface layers are respectively reinforced by reinforced fibers or steel meshes. The assembled profiled steel grooves and connecting pieces at the central line parts in the span direction of the roof panel and at the equidistant parts at the two ends of the central line are used as the bearing steel frame structure of the light assembled heat-insulation roof panel, and connecting holes and elliptic connecting holes are arranged on the upper surfaces of the profiled steel grooves and the surfaces of the connecting pieces at the equidistant parts at the central line parts in the span direction of the roof panel and at the two ends of the central line. The bearing heat-insulating surface layer, the profiled steel groove and the connecting piece are connected by bolts to form a whole and bear force together. And laying the decorative plate of the indoor part of the roof plate in the bottom of the profiled channel steel. The plate is light in weight, easy to assemble and free of cracking. Is convenient for transportation. However, although the load-bearing steel frame structure is good in stress, the steel is high in manufacturing cost, easy to rust and affect the service life of building components, complicated in production and manufacturing procedures, small in capacity and poor in adaptability, belongs to the customization category, is large in product volume and area, is inconvenient for mass mechanical construction production, is high in manufacturing, transporting and installing cost, and is not easy to accept by users. Thus, improvements are still needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defect that above-mentioned current roof boarding and light-duty pin-connected panel heat preservation roof boarding exist, the utility model discloses an preferred technical scheme as follows:
an inorganic bearing purlin bearing combined roof floor comprises inorganic bearing purlins, wherein the inorganic bearing purlins are made of inorganic materials and extruded into a cavity body in a vacuum mode, reinforcing steel bars or fiber tows are distributed in the middle of the plane of a bottom end plate of the inorganic bearing purlins during extrusion of the purlins, after the inorganic bearing purlins are solidified, dried and formed, heat insulation materials are filled in cavities of the inorganic bearing purlins, steel plates or steel sections are fixedly connected to the horizontal and/or side ends of two end heads of the inorganic bearing purlins through welding or bolts, the steel plates or the steel sections connected to the bottom ends of the two end heads of the inorganic bearing purlins are effectively connected with a main body bearing structure part, the distance between the two inorganic bearing purlins is 600mm-1500mm, and bearing plates are respectively arranged above and below the two inorganic bearing purlins; placing upper bearing plates at two ends of the width direction of two sides of the upper end of the inorganic bearing purline, placing lower bearing plates of the bearing plates at the barrier strips and/or grooves at the lower end of the inorganic bearing purline, adding a cold bridge barrier layer between the upper bearing plates and the upper end plane of the inorganic bearing purline or additionally arranging a cold bridge barrier layer with the thickness of 5-20mm, and filling heat-insulating and/or sound-insulating materials in spaces between two adjacent inorganic bearing purlines and between the upper bearing plates and the lower bearing plates; in the building with non-heat-preservation and energy-saving requirements, heat-preservation and/or sound-insulation materials are filled in the inorganic load-bearing purlines or are not filled in the inorganic load-bearing purlines; and heat-insulating and/or sound-insulating materials and cold bridge blocking layers are not filled in the spaces between two adjacent inorganic bearing purlines and between the upper bearing plate and the lower bearing plate.
Preferably, a cold bridge barrier layer is additionally arranged between the upper bearing plate and the inorganic bearing purline or between the upper bearing plate and the inorganic bearing purline, and the thickness of the cold bridge barrier layer is 5-20 mm.
Preferably, the upper and lower panels between the inorganic load-bearing purlins are load-bearing plates, or the lower panel is a common hanging plate.
Preferably, the inorganic load-bearing purline has a width of 200mm-600mm, a thickness of 150mm-300mm and a length of less than or equal to 12 m.
Preferably, the distance between the two inorganic load-bearing purlines is 600mm-1500 mm.
In any of the above schemes, preferably, the heat insulating and/or sound insulating material is filled in the cavity-shaped body of the inorganic bearing purlines, between two adjacent inorganic bearing purlines, and in the spaces between the upper and lower bearing plates. The heat preservation performance and the sound insulation performance of the heat preservation or sound insulation material are required to be adjusted by checking the height of the inorganic bearing purline and the volume weight of the heat preservation and sound insulation material and reducing the cross section area of the vertical rib of the cavity body of the inorganic bearing purline.
In any of the above schemes, preferably, the reinforcing steel bars in the reinforcing steel bars or fiber tows are either patterned, the fiber tows are helically wound by two or more strands, the diameter of the reinforcing steel bars or fiber tows is less than or equal to 12mm, and the diameter of the reinforcing steel bars or fiber tows and the distance between the reinforcing steel bars or fiber tows are determined according to design use load check calculation.
In any of the above embodiments, preferably, when the reinforcing steel bar or the fiber tow is extruded out of the hollow-cavity shaped body in vacuum, the inorganic material and the reinforcing steel bar or the fiber tow are completely and fully compounded without gaps and hollow spaces.
In any of the above schemes, preferably, the shape of the extruded cavity body of the inorganic load-bearing purlin is set according to actual needs.
In any of the above schemes, preferably, at the intersection of the inorganic bearing purlin and the cross arm of the main body bearing structure, the effective lap length of the inorganic bearing purlin cross arm on the main body bearing structure is not less than 3% of the length of the inorganic bearing purlin, and the effective width of the connecting piece connecting the connecting steel plate or the section steel with the main body bearing structure is not less than 1.5% of the length of the inorganic bearing purlin and should not be less than 60 mm.
In any of the above schemes, preferably, when the inorganic load-bearing purlins are extruded and reinforcing steel bars are distributed in the middle of the plane of the bottom end plate of each inorganic load-bearing purlin, the distance between the outer side wall of each inorganic load-bearing purlin and the outer skin of each reinforcing steel bar is not less than 3-5 times of the diameter of each reinforcing steel bar and not less than 15mm, because the strength of the plate material is equivalent to that of at least C40 concrete, the minimum thickness of the protective layer of the reinforcing steel bars of the C40 concrete slab is not less than 15 mm.
Compared with the prior art, the utility model beneficial effect be:
(1) the utility model adopts the technical proposal that the inorganic bearing purline replaces the prior light steel framework, compared with the light steel framework, the inorganic bearing purline has high rigidity and small deflection, the deflection of the light steel framework is 1/200-250 of the length of the member, the deflection of the inorganic bearing purline can be controlled at 1/1000, which belongs to a rigid plate and is applicable to the technical fields of villas, public buildings and civil buildings;
(2) the inorganic load-bearing purline load-bearing combined roof floor has good heat preservation, sound insulation and sound absorption performances, has good durability, and does not have corrosion phenomenon;
(3) the installation and construction are simple, convenient and quick, the adaptability of a construction site is better, the method is suitable for various types and various complex roof conditions, and the efficiency can be improved by 5-10 times;
(4) the long-distance transportation cost is reduced by 30 percent;
(5) the construction size deviation of the main structure is convenient to digest, engineering construction procedures are reduced, a heat-insulating layer is not needed, heat insulation and load bearing are integrated, the operation time in unit time is reduced, the construction and installation progress is improved, and the installation labor cost is reduced;
(6) because inorganic materials and reinforcing steel bars or fiber tows are used as the main bearing structure of the roof floor, the consumption of steel is reduced, the whole construction cost can be reduced by about 50%, and the installation progress can be advanced by about 70%.
(7) The cutting tool is suitable for simple or complex roof floors, and is convenient to cut and finish;
(8) light in weight, cost are low, the performance is complete, and transportation and installation are convenient, and economic nature is better, and can used repeatedly, accords with the requirement of economic policy of circulation, environmental protection and waste utilization.
The inorganic bearing purline produced by the inorganic material vacuum extrusion equipment has the advantages of high capacity, daily production capacity of 800 plus 1000 linear meters, little inorganic material product capillary pores, water absorption rate of less than 5 percent, high compactness and no air pores, strength of 2-3 times of that of the traditional cement product, breaking strength of more than 10mpa and humidity deformation of less than 0.05. The utility model discloses a reinforcing bar or fibre silk bundle and inorganic bearing purlin bottom compound, have improved the intensity and the security of inorganic bearing purlin, make roofing, floor can carry out assembled construction installation, have reduced transportation, installation cost, have reduced the load weight of self, and product production simple accurate, steel use amount is few, and output is high, and job site survival area is big, and energy-conserving performance is good. Can meet various requirements of use environments of industrial, public and civil buildings.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of an inorganic load-bearing purlin load-bearing composite roof floor according to the present invention.
Fig. 2 is a schematic structural view of one of the preferred inorganic load-bearing purlins of the cross-sectional structural form of the inorganic load-bearing purlin load-bearing composite roof floor according to the present invention.
Fig. 3 is a schematic structural view of a second preferred section structural form of inorganic load-bearing purlins for the inorganic load-bearing purlins load-bearing composite roof floor according to the present invention.
Fig. 4 is a schematic structural view of a third section structural form of the preferable inorganic bearing purlins of the inorganic bearing purlins bearing combined roof floor according to the utility model.
Description of reference numerals:
1 inorganic load-bearing purline; 2 bearing plates; 3 connecting steel plates; 4 reinforcing steel bars or fiber tows; 5 heat insulating and/or sound absorbing material.
Detailed Description
The technical scheme of the inorganic load-bearing purlin load-bearing combined roof floor is described in detail with reference to fig. 1 as follows:
an inorganic bearing purlin bearing combined roof floor comprises an inorganic bearing purlin 1, wherein the inorganic bearing purlin 1 is a cavity body formed by vacuum extrusion of inorganic materials, reinforcing steel bars or fiber tows 4 are uniformly distributed at the middle position of the plane of a bottom end plate of the inorganic bearing purlin 1 during extrusion of the purlin, after the inorganic bearing purlin is solidified, dried and molded, filling heat-insulating and/or sound-absorbing 5 materials in the inorganic bearing purline 1, fixedly connecting steel plates 3 or section steel at the horizontal and/or side ends of the two end heads of the inorganic bearing purline 1 by welding or bolts, effectively connecting the connecting steel plates 3 or section steel at the bottom ends of the two end heads of the inorganic bearing purline 1 with the main body bearing structure part, in the interval of 600mm-1500mm between the two inorganic bearing purlines, bearing plates 2 are respectively arranged on the upper and lower surfaces between the two inorganic bearing purlines 1; the method is characterized in that upper bearing plates 2 are placed at two ends of the two sides of the upper end of an inorganic bearing purline 1 in the width direction, lower bearing plates 2 of the bearing plates are placed at barrier strips and/or grooves at the lower end of the inorganic bearing purline 1, a cold bridge barrier layer is additionally arranged between the upper bearing plates 2 and the upper end plane of the inorganic bearing purline 1, the thickness of the cold bridge barrier layer is 5-20mm, and heat preservation and/or sound insulation materials 5 are filled in spaces between every two adjacent inorganic bearing purlines 1 and between the upper bearing plates 2 and the lower bearing plates 2.
The building with the non-heat-preservation and energy-saving requirements is filled with heat-preservation and/or sound-insulation materials or not in the inorganic load-bearing purline 1. And heat-insulating and/or sound-insulating materials 5 and cold bridge barriers are not filled in the spaces between two adjacent inorganic bearing purlines 1 and between the upper and lower bearing plates 2.
The inorganic bearing purline 1 is made of inorganic materials and is extruded out of a cavity body in vacuum, and the shape of the extruded cavity body of the inorganic bearing purline 1 is set according to actual needs. The inorganic bearing purline 1 has the width of 200mm-600mm, the thickness of 150mm-300mm and the length of less than or equal to 12 m. The inorganic material vacuum extrusion cavity body is the only preparation method of the inorganic bearing purline, and can effectively ensure that the related performance indexes of the inorganic bearing purline 1 meet the related use requirements.
The heat preservation performance and the sound insulation performance of the heat preservation or sound insulation material 5 filled in the cavity body of the inorganic bearing purline 1 need to be adjusted by checking the height of the inorganic bearing purline 1 and the volume weight of the heat preservation and sound insulation material and reducing the cross section area of the vertical ribs of the cavity body of the inorganic bearing purline 1. The steel bars in the steel bars or the fiber tows 4 are patterned steel bars, the fiber tows are double strands or multiple strands of spirally wound fiber tows, the diameter of the steel bars or the fiber tows 4 is smaller than or equal to 4mm, and the diameter of the steel bars or the fiber tows 4 and the distance between the steel bars or the fiber tows 4 are determined according to design use load check calculation. When the reinforcing steel bars or the fiber tows 4 are extruded out of the hollow cavity body in vacuum by the inorganic material, the inorganic material and the reinforcing steel bars or the fiber tows 4 are completely and fully compounded without gaps and hollow holes. At the cross arm joint of the inorganic bearing purline 1 and the main body bearing structure, the effective lap joint length of the cross arm of the inorganic bearing purline 1 on the main body bearing structure is not less than 3% of the length of the inorganic bearing purline 1, and the effective width of the connecting piece for connecting the steel plate 3 or the section steel with the main body bearing structure is not less than 1.5% of the length of the inorganic bearing purline 1 and is not less than 60 mm. When the inorganic bearing purline 1 is extruded and the reinforcing steel bars are distributed in the middle of the plane of the bottom end plate of the inorganic bearing purline 1, the distance between the outer side wall of the inorganic bearing purline 1 and the outer skin of the reinforcing steel bars is not less than 3-5 times of the diameter of the reinforcing steel bars and not less than 15 mm. The national standard stipulates that the thickness of the carbonized protection layer of the reinforcing steel bar is not less than 15mm under the state that the thickness of the plate is C40, the inorganic bearing purline is made of vacuum extrusion cavity type materials, the inorganic bearing purline is compact, the number of capillary holes is small, and the C40 standard is met, so that the size of the distance between the outer side wall of the inorganic bearing purline 1 and the outer skin of the reinforcing steel bar is not less than 15 mm. When the fiber tows are adopted, the diameter of the tows can be determined by calculation according to the bearing capacity of the fiber tows, and the tows are not carbonized, so that the outer wall of the inorganic bearing purline 1 can completely wrap the tows only in a load limit state, and the distance between the outer wall of the inorganic bearing purline 1 and the outer skin of the fiber tows is not less than 3-5 times of the diameter of the fiber tows and not less than 5 mm.
After the cavity type body of the inorganic bearing purline 1 is filled with the heat preservation and sound insulation material, the heat transfer coefficient is 0.3-0.4W/(m.K) when the thickness is 150 plus 300mm, and the sound insulation quantity is more than 45 decibels.
The above embodiments are only preferred embodiments, wherein the components and the connection relationships in the embodiments are not limited to the embodiments described in the above embodiments, and the arrangement and the connection relationships of the components in the above preferred embodiments may be arbitrarily arranged and combined to form a complete embodiment.

Claims (9)

1. An inorganic bearing purlin bearing combined roof floor comprises an inorganic bearing purlin (1), it is characterized in that the inorganic bearing purline (1) adopts an inorganic material vacuum extrusion cavity body, when the purline is extruded, reinforcing steel bars or fiber tows (4) are distributed in the middle of the plane of the bottom end plate of the inorganic bearing purline (1), after the inorganic bearing purline (1) is solidified, dried and molded, filling heat insulation materials in a cavity of the inorganic bearing purline (1), fixedly connecting steel plates (3) or section steels at the bottom ends and/or the side ends of two end heads in the length direction of the inorganic bearing purline (1) by welding or bolts, and effectively connecting the connecting steel plates (3) or the section steels at the bottom ends of the two end heads in the length direction of the inorganic bearing purline (1) with a main body bearing structure part, the upper surface and the lower surface between the two inorganic bearing purlines (1) are respectively provided with a bearing plate (2); the upper bearing plates (2) are placed at two ends of the width direction of two sides of the upper end of the inorganic bearing purline (1), the bearing plates (2) below the bearing plates are placed at the barrier strips and/or the grooves at the lower end of the inorganic bearing purline (1), a cold bridge blocking layer is additionally arranged between the upper bearing plates (2) and the upper end plane of the inorganic bearing purline (1) or between the upper bearing plates (2) and the upper end plane of the inorganic bearing purline (1), the thickness is 5-20mm, and heat preservation materials and/or sound insulation materials (5) are filled between two adjacent inorganic bearing purlines (1) and in the space between the upper bearing plates (2) and.
2. The load-bearing composite roofing floor of claim 1, wherein the upper and lower panels between the load-bearing purlins (1) are load-bearing plates, or the lower load-bearing plates are conventional hanging plates.
3. The load-bearing composite roof floor of inorganic load-bearing purlins as claimed in claim 1, wherein the width of the inorganic load-bearing purlins (1) is 200mm to 600mm, the thickness is 150mm to 300mm, the length is less than or equal to 12m, and the distance between two inorganic load-bearing purlins (1) is 600mm to 1500 mm.
4. The inorganic load-bearing purlin load-bearing composite roofing floor as claimed in claim 1, wherein the reinforcing steel bars or the fiber tows (4) are either patterned reinforcing steel bars or are helically wound in double or multiple strands, the diameter of the reinforcing steel bars or the fiber tows (4) is less than or equal to 12mm, and the diameter of the reinforcing steel bars or the fiber tows (4) and the distance between the reinforcing steel bars or the fiber tows (4) are determined according to design use load check calculation.
5. The inorganic load-bearing purlin load-bearing composite roofing floor as claimed in claim 1, wherein the reinforcing steel bars or fiber tows (4) are fully and fully compounded without gaps and voids between the inorganic material and the reinforcing steel bars or fiber tows (4) when the inorganic material is vacuum extruded into the hollow-cavity shaped body.
6. The load-bearing composite roofing floor of claim 1, wherein the shape of the extruded hollow body of the load-bearing purlins (1) is set according to actual needs, and the intermediate hollow space is partially filled with thermal insulation material.
7. The load-bearing composite roof floor of inorganic load-bearing purlins as claimed in claim 1, wherein at the junction of the inorganic load-bearing purlins (1) and the cross arms of the main load-bearing structure, the effective lap length of the cross arms of the inorganic load-bearing purlins (1) on the main load-bearing structure is not less than 3% of the length of the inorganic load-bearing purlins (1), and the effective width of the connecting piece for connecting the connecting steel plate (3) or the section steel with the main load-bearing structure is not less than 1.5% of the length of the inorganic load-bearing purlins (1) and is not less than 60 mm.
8. The inorganic load-bearing purlin load-bearing composite roof floor as claimed in claim 1, wherein when the inorganic load-bearing purlin (1) is extruded and the reinforcing steel bars are arranged in the middle of the plane of the bottom end plate of the inorganic load-bearing purlin (1), the distance between the outer wall of the inorganic load-bearing purlin (1) and the outer skin of the reinforcing steel bars is not less than 3-5 times of the diameter of the reinforcing steel bars and not less than 15 mm.
9. The inorganic load-bearing purlin load-bearing composite roofing floor as claimed in claim 1, wherein the building with non-heat-insulating and energy-saving requirements is not filled with heat-insulating and/or sound-insulating materials inside the inorganic load-bearing purlins (1), and is not filled with heat-insulating and/or sound-insulating materials (5) and cold bridge barriers in the spaces between two adjacent inorganic load-bearing purlins (1) and the upper and lower load-bearing plates (2).
CN201921931464.9U 2019-11-08 2019-11-08 Inorganic bearing purlin bearing combination roofing floor Active CN212376111U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921931464.9U CN212376111U (en) 2019-11-08 2019-11-08 Inorganic bearing purlin bearing combination roofing floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921931464.9U CN212376111U (en) 2019-11-08 2019-11-08 Inorganic bearing purlin bearing combination roofing floor

Publications (1)

Publication Number Publication Date
CN212376111U true CN212376111U (en) 2021-01-19

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GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: An inorganic load-bearing purlin load-bearing composite roof floor

Effective date of registration: 20230317

Granted publication date: 20210119

Pledgee: Bank of China Limited Baotou Qingshan sub branch

Pledgor: Pan Xupeng|BAOTOU JIANQIANG LIGHT BOARD INDUSTRY CO.,LTD.

Registration number: Y2023150000044