CN110722666A - Splicing type prefabricated composite floor slab forming die and splicing method thereof - Google Patents
Splicing type prefabricated composite floor slab forming die and splicing method thereof Download PDFInfo
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- CN110722666A CN110722666A CN201911114720.XA CN201911114720A CN110722666A CN 110722666 A CN110722666 A CN 110722666A CN 201911114720 A CN201911114720 A CN 201911114720A CN 110722666 A CN110722666 A CN 110722666A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
Abstract
A splicing type prefabricated composite floor slab forming die and a splicing method thereof belong to the technical field of building engineering and solve the technical problems of low recycling rate and high production cost of the prefabricated composite floor slab forming die. The solution is as follows: the die comprises a universal connecting die and a corner connecting die, and the long-edge die and the wide-edge die are connected through the corner connecting die to form a rectangular closed-loop die frame. When the prefabricated composite floor slabs with the same specification are produced, bolts at the adjacent positions of the four corner molds are only needed to be installed and disassembled, and the long-side molds and the wide-side molds can be repeatedly assembled and used; when the prefabricated composite floor slabs with different specifications are produced, the universal connecting mould can be detached and assembled again and used repeatedly, and only the corner connecting mould needs to be replaced. According to the invention, the universal connecting mould can be recycled all the time, the corner connecting mould can realize any shape and size through 3D printing, and the effective combination of the universal connecting mould and the corner connecting mould can completely meet the production of prefabricated composite floor slabs with any shape and size.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a forming die for a spliced prefabricated composite floor slab and an assembling method thereof.
Background
The assembly type technology is a novel green and environment-friendly construction mode, is favorable for realizing energy conservation and emission reduction, and is a future development trend of the building industry. In recent years, the emphasis and the vigorous development of fabricated buildings have been raised to the national level. The force contends for about 10 years, so that the proportion of the assembled building in the new building reaches 30 percent. The assembly type building is developed vigorously, the standardized construction is accelerated, and the technical level and the engineering quality of the building are improved. Other provinces and cities develop assembly building implementation opinions on vigorous development. At present, more than 500 assembly type component manufacturers exist in China. The new house areas of 20.1 hundred million square meters, 19.5 hundred million square meters and 19.1 hundred million square meters in 2019-2021, the occupation ratio of the fabricated building is 17.5%, 20.5% and 23%, and the new house areas of the corresponding fabricated building are 3.5 hundred million square meters, 4.0 hundred million square meters and 4.4 hundred million square meters respectively. The prefabricated composite floor slab is a main component of the fabricated building, has the advantages of good structural integrity, great reduction of cast-in-place templates, guaranteed quality, convenience in construction and the like, and is a preferred component in the fabricated building.
In the production process of the prefabricated composite floor slab, the floor slab part is split into a plurality of composite floor slabs with different sizes according to the design drawing of a building project, and then a mold is manufactured according to the size of the composite floor slabs. The traditional die is made of steel and cast aluminum, and needs cutting, welding, hole opening and other processes, so that the production is time-consuming, labor-consuming, resource-wasting and environmentally-friendly. In the process of producing the prefabricated composite floor slab, the characteristics are as follows: 1. the weight per meter is as high as 10kg-15kg, so that workers waste time and labor in the assembling process, and the efficiency is extremely low; 2. the cost of the die is high, and is as high as 150 yuan to 180 yuan per meter; 3. the vertical plate of the die is provided with a plurality of rib penetrating holes or rib penetrating grooves, so that the die is easy to bend and deform, the die with light deformation in the production process is repaired (manpower is consumed, the working time is delayed), the die with serious deformation is scrapped, the required die has to be manufactured again, the assembly difficulty is increased, and the production cycle and the component precision are influenced; 4. because the coincide floor size, play muscle position, the reinforcing bar size of different projects are different, and every project all needs reprocess the mould that meets the requirements according to concrete structure and size, leads to can not circulate the sharing between the mould of different projects.
To sum up, the cost of using traditional mould production prefabricated coincide floor still will be higher than cast-in-place floor cost, and then has hindered the popularization process of prefabricated building. The prefabricated superimposed sheet mould technical patent of current nonmetal concatenation: the technical solution disclosed in the patent application document is represented by: 1. too many play muscle groove has been seted up on the vertical board of mould, for preventing that the mould warp, design length is shorter, and the assembly part is more, increases the man-hour of workman's assembly, and production efficiency is not higher than traditional mould. 2. Because go out muscle groove and piece more, lead to leaking the thick liquid phenomenon seriously, influence the component quality, increase the degree of difficulty of subsequent handling simultaneously. 3. The injection molding pre-embedding process is adopted, and the mold production cost is high due to the fact that parts are more and the mold opening cost is high and is 2-4 times of that of a traditional steel mold.
Disclosure of Invention
In order to overcome the defects in the prior art, improve the production efficiency of the prefabricated composite floor slab die, reduce the production cost, reduce the resource waste and the like, the invention provides the splicing type prefabricated composite floor slab forming die capable of being recycled and the splicing method thereof, the weight of the die is only 1/5 of a metal die, and the price is 1/2 of the metal die; the mould provided by the invention can reduce the comprehensive cost of the prior laminated floor slab by 20 percent and reduce the comprehensive cost by 10 percent compared with the traditional cast-in-situ floor slab.
The invention is realized by the following technical scheme.
The utility model provides a prefabricated coincide floor forming die of concatenation formula, it includes general connecting die and corner connecting die, wherein:
according to the design shape and size of the prefabricated composite floor slab, a plurality of sections of the universal connecting molds are sequentially connected in the straight line direction to respectively form a long-edge mold and a wide-edge mold, corner connecting molds are arranged at two ends of the long-edge mold and two ends of the wide-edge mold, and the long-edge mold and the wide-edge mold are connected through the corner connecting molds to form a rectangular closed-loop mold frame for forming the prefabricated composite floor slab;
each section of the universal connecting mould and each section of the corner connecting mould comprise a vertical plate, a horizontal plate and two connecting side plates, wherein the vertical plate and the horizontal plate are connected in a right-angled mode to form an L shape, the inner side of the right-angled joint of the vertical plate and the horizontal plate is provided with a chamfer angle bead, the bottom surface of the horizontal plate is provided with grids, the connecting side plates are respectively positioned at the head end and the tail end of each section of the mould, and each connecting side plate is provided with a connecting hole for connecting adjacent universal connecting moulds or corner connecting moulds;
the corner connecting mold is characterized in that the connecting side plate, the vertical plate and the horizontal plate which are close to one side of the universal connecting mold are perpendicular to each other, and the connecting side plate at the other end and the corner connecting mold are at an acute angle of 45 degrees in the length direction.
Furthermore, the general connecting mold is made of a mixture of ABS resin and glass fiber or ASA resin, and the corner connecting mold is made of light-cured resin.
Further, the general connecting mold is integrally formed through an injection molding process, and the corner connecting mold is integrally formed through a 3D printing process.
Furthermore, the length of the universal connecting mold is 800 ~ 2000mm, the length of the corner connecting mold is 50 ~ 1200mm, the distance between the center lines of the adjacent U-shaped rib penetrating grooves is 100mm, 150mm or 200mm, the depth of the U-shaped rib penetrating grooves is 35 ~ 75mm, and the upper surface of the boss is 5 ~ 10mm higher than the bottom surface of the U-shaped rib penetrating grooves.
Furthermore, at least two connecting holes are formed in the connecting side plates, and the adjacent connecting side plates are fixedly connected through bolts.
A splicing method of a splicing type prefabricated composite floor slab forming die comprises the following steps:
s1, designing a mold structure: designing the shape and size of a prefabricated composite floor slab and the arrangement position of reinforcing steel bars according to the structure of a roof plate of a house, designing a splicing type prefabricated composite floor slab forming die according to the structure of the prefabricated composite floor slab, and determining the shape and length of a universal connecting die and a corner connecting die;
s2, assembling the side die: according to the structure of the splicing type prefabricated composite floor slab forming die designed in the step S1, the long-side die and the wide-side die meet the design requirements through the combined connection of the general connecting die and the corner connecting die;
s3, assembling the die: and connecting the long-edge die assembled in the step S2 with four corners of the wide-edge die, and assembling the die into the rectangular closed-loop die frame meeting the design requirement of the step S1.
Furthermore, the spliced prefabricated composite floor slab forming die is used for preparing the unidirectional prefabricated composite floor slab and only needs to plug the U-shaped reinforcing bar penetrating groove without reinforcing bars.
Further, the long-edge mold and the wide-edge mold assembled in the step S2 are reused in the production of the prefabricated composite floor slab with the same specification, and the adjacent corner connecting molds at the four corners are disassembled and assembled.
Furthermore, after the splicing type prefabricated composite floor slab forming die in the same specification is used, the general connecting die and the corner connecting die are detached, the general connecting die is used for splicing type prefabricated composite floor slab forming dies in other specifications, and the corner connecting die is recycled as waste materials.
Compared with the prior art, the invention has the beneficial effects that:
the side die assembly comprises a universal connecting die and a corner connecting die, is prepared from light non-metal materials, can be accurately combined into any required shape and size according to actual requirements, has a unique design structure of the universal connecting die and the corner connecting die, is uniformly stressed and is not easy to deform, the cost for manufacturing the die is 1/2 lower than that of the traditional cast iron die, and the weight is light (1/5 of the weight of the cast iron die), so that the side die assembly is convenient for workers to carry and assemble and is 3 times of the assembling efficiency of the traditional steel die. The assembled long-side die and wide-side die can be used for repeatedly assembling and using the prefabricated composite floor slabs with the same specification, and only connecting bolts at corner connecting dies adjacent to four corners are required to be installed and disassembled when the dies are assembled and disassembled; the combination of the universal connecting mould after the corner connecting mould is removed and a new corner edge connecting mould can be used for assembling prefabricated composite floor slabs with different specifications, and the production cost is effectively reduced.
Drawings
Fig. 1 is a schematic top view structure diagram of an assembled rectangular closed-loop mold frame.
Fig. 2 is a schematic perspective view of the universal connection mold shown in fig. 1.
Fig. 3 is a left side view of the structure of fig. 2.
Fig. 4 is a longitudinal sectional view along the center line of the U-shaped bar-penetrating groove in fig. 2.
FIG. 5 is a perspective view of the corner connecting mold assembly of FIG. 1.
In the figure, 1 is a general connecting mould, 2 is a corner connecting mould, 3 is a vertical plate, 4 is a horizontal plate, 5 is a U-shaped rib penetrating groove, 6 is a reinforcing rib plate, 7 is a boss, 8 is a connecting side plate, 9 is a chamfer angle convex edge, and 10 is an external corner chamfer angle.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
In this embodiment, the size of the prefabricated laminated floor is: length, width, height =3220mm 2600mm 60mm, spacing between longitudinal ribs is 200mm, and spacing between transverse ribs is 200 mm.
The utility model provides a prefabricated coincide floor forming die of concatenation formula, it includes general connecting die 1 and corner connecting die 2, wherein:
according to the design shape and size of the prefabricated composite floor slab, a plurality of sections of the universal connecting molds 1 are sequentially connected in the straight line direction to respectively form a long-edge mold and a wide-edge mold, corner connecting molds 2 are arranged at two ends of the long-edge mold and two ends of the wide-edge mold, and the long-edge mold and the wide-edge mold are connected through the corner connecting molds 2 to form a rectangular closed-loop mold frame for forming the prefabricated composite floor slab;
each section of the universal connecting mold 1 and each section of the corner connecting mold 2 respectively comprise a vertical plate 3, a horizontal plate 4 and two connecting side plates 8, the vertical plate 3 and the horizontal plate 4 are connected in a right-angled manner to form an L shape, the inner side of the right-angled connection part of the vertical plate 3 and the horizontal plate 4 is provided with a chamfer convex edge 9, the bottom surface of the horizontal plate 4 is provided with grids, the connecting side plates 8 are respectively positioned at the head end and the tail end of each section of the mold, the connecting side plates 8 are provided with connecting holes for connecting the adjacent universal connecting mold 1 or the corner connecting mold 2, U-shaped rib penetrating grooves 5 are respectively arranged at the positions, corresponding to the embedded steel bars, on the vertical plate 3, two sides of each U-shaped rib penetrating groove 5 are respectively and symmetrically provided with reinforcing rib plates 6, the reinforcing rib plates 6 are positioned between the vertical plate 3 and the horizontal plate 4, the lower parts of the outer side surfaces of the vertical plates 3 between the reinforcing rib plates 6 are provided with bosses 7, the upper parts of the inner side surfaces;
the corner connecting mold 2 is close to the connecting side plate 8 on one side of the universal connecting mold 1 and is perpendicular to the vertical plate 3 and the horizontal plate 4 in pairs, and the connecting side plate 8 on the other end and the corner connecting mold 2 are at an acute included angle of 45 degrees in the length direction.
Furthermore, the general connecting mold is made of a mixture of ABS resin and glass fiber or ASA resin, and the corner connecting mold is made of light-cured resin.
Further, the universal connecting mold 1 is integrally formed through an injection molding process, and the corner connecting mold 2 is integrally formed through a 3D printing process.
Furthermore, the length of the universal connecting mold 1 is 800 ~ 2000mm, the length of the corner connecting mold 2 is 50 ~ 1200mm, the distance between the central lines of the adjacent U-shaped rib penetrating grooves 5 is 100mm, 150mm or 200mm, the depth of the U-shaped rib penetrating grooves 5 is 35 ~ 75mm, and the upper surface of the boss 7 is 5 ~ 10mm higher than the bottom surface of the U-shaped rib penetrating grooves 5.
Furthermore, at least two connecting holes are formed in the connecting side plates 8, and the adjacent connecting side plates 8 are fixedly connected through bolts.
A splicing method of a splicing type prefabricated composite floor slab forming die comprises the following steps:
s1, designing a mold structure: designing the shape and size of a prefabricated composite floor slab and the arrangement position of reinforcing steel bars according to the structure of a roof slab of a house, designing a rectangular closed-loop mould frame for forming the prefabricated composite floor slab according to the structure of the prefabricated composite floor slab, sequentially connecting 2 universal connecting moulds 1 with the length of 1400mm along the linear direction to form a long-edge mould, selecting 1 universal connecting mould 1 with the length of 1000mm and 1 universal connecting mould 1 with the length of 1200mm to form a wide-edge mould, and arranging corner connecting moulds 2 at both ends of the long-edge mould and both ends of the wide-edge mould;
s2, assembling the long-edge mold and the wide-edge mold: according to the structure of the splicing type prefabricated composite floor slab forming die designed in the step S1, the long-side die and the wide-side die meet the design requirements through the combined connection of the universal connecting die 1 and the corner connecting die 2;
s3, assembling the die: and connecting the long-edge die assembled in the step S2 with four corners of the wide-edge die, and assembling the die into the rectangular closed-loop die frame meeting the design requirement of the step S1.
Furthermore, the spliced prefabricated composite floor slab forming die is used for preparing the unidirectional prefabricated composite floor slab, and the U-shaped reinforcing bar penetrating groove 5 without reinforcing bars is only required to be plugged.
Further, the long-side die and the wide-side die assembled in the step S2 are repeatedly used for producing the prefabricated composite floor slab with the same specification, and the die 2 is connected by detaching and assembling the corner connecting dies at the adjacent positions of four corners.
Further, after the splicing type prefabricated composite floor slab forming die in the same specification is used, the general connecting die 1 and the corner connecting die 2 are detached, the general connecting die 1 is used for splicing type prefabricated composite floor slab forming dies in other specifications, and the corner connecting die 2 is recycled as waste.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a prefabricated coincide floor forming die of concatenation formula, it includes general connecting die (1) and corner connecting die (2), its characterized in that:
according to the design shape and size of the prefabricated composite floor slab, a plurality of sections of the universal connecting molds (1) are sequentially connected in the straight line direction to respectively form a long-edge mold and a wide-edge mold, corner connecting molds (2) are arranged at two ends of the long-edge mold and two ends of the wide-edge mold, and the long-edge mold and the wide-edge mold are connected through the corner connecting molds (2) to form a rectangular closed-loop mold frame for forming the prefabricated composite floor slab;
each section of the universal connection die (1) and each section of the corner connection die (2) respectively comprise a vertical plate (3), a horizontal plate (4) and two side connection plates (8), the vertical plate (3) and the horizontal plate (4) are connected in a right angle manner to form an L shape, the inner side of the right-angle joint of the vertical plate (3) and the horizontal plate (4) is provided with a chamfer convex edge (9), the bottom surface of the horizontal plate (4) is provided with grids, the side connection plates (8) are respectively positioned at the head end and the tail end of each section of the die, and each side connection plate (8) is provided with a connecting hole for connecting the adjacent universal connection die (1) or the corner connection die (2); u-shaped bar penetrating grooves (5) are respectively formed in the positions, corresponding to the positions of the embedded steel bars, of the vertical plates (3), reinforcing rib plates (6) are symmetrically arranged on two sides of each U-shaped bar penetrating groove (5), and the reinforcing rib plates (6) are located between the vertical plates (3) and the horizontal plates (4); a boss (7) is arranged on the lower portion of the outer side face of the vertical plate (3) between the reinforcing rib plates (6), an external corner chamfer (10) used for prefabricating the edge of the laminated floor slab is arranged on the upper portion of the inner side face of the vertical plate (3), and the radius of the external corner chamfer (10) is 10-25 mm;
corner joint mould (2) are close to connecting curb plate (8) and vertical board (3), the horizontal plate (4) two liang of verticalities of general joint mould (1) one side, and the acute angle contained angle that connecting curb plate (8) and corner joint mould (2) length direction of the other end were 45 degrees.
2. The forming die for the spliced prefabricated composite floor slab as claimed in claim 1, wherein: only one of the universal connecting mould (1) or the corner connecting mould (2) is adopted, and the closed-loop mould frame with the design requirement can be independently assembled.
3. The forming die for the spliced prefabricated composite floor slab as claimed in claim 1, wherein: the general connecting mold (1) is made of a mixture of ABS resin and glass fiber or ASA resin, and the corner connecting mold (2) is made of light-cured resin.
4. The forming die for the spliced prefabricated composite floor slab as claimed in claim 1, wherein: the universal connecting mold (1) is integrally formed through an injection molding process, and the corner connecting mold (2) is integrally formed through a 3D printing process.
5. The forming die for the spliced prefabricated composite floor slab as claimed in claim 1, wherein: the length of the universal connecting mould (1) is 800-2000 mm, and the length of the corner connecting mould (2) is 50-1200 mm; the distance between the central lines of the adjacent U-shaped rib penetrating grooves (5) is 100mm, 150mm or 200mm, and the depth of each U-shaped rib penetrating groove (5) is 35-75 mm; the upper surface of the boss (7) is 5-10 mm higher than the bottom surface of the U-shaped rib penetrating groove (5).
6. The forming die for the spliced prefabricated composite floor slab as claimed in claim 1, wherein: the connecting side plates (8) are provided with at least two connecting holes, and the adjacent connecting side plates (8) are fixedly connected through bolts.
7. An assembling method of a forming die for splicing type prefabricated composite floor slabs as claimed in claim 1, characterized by comprising the following steps:
s1, designing a mold structure: designing the shape and size of a prefabricated composite floor slab and the arrangement position of reinforcing steel bars according to the structure of a roof plate of a house, designing a splicing type prefabricated composite floor slab forming die according to the structure of the prefabricated composite floor slab, and determining the shape and length of a universal connecting die (1) and a corner connecting die (2);
s2, assembling the side die: according to the structure of the splicing type prefabricated composite floor slab forming die designed in the step S1, the long-side die and the wide-side die meet the design requirements through the combined connection of the universal connecting die (1) and the corner connecting die (2);
s3, assembling the die: and connecting the long-edge die assembled in the step S2 with four corners of the wide-edge die, and assembling the die into the rectangular closed-loop die frame meeting the design requirement of the step S1.
8. The method for prefabricating the composite floor slab by the splicing type mold according to claim 1, wherein the method comprises the following steps: the prefabricated coincide floor forming die of concatenation formula is used for preparing one-way prefabricated coincide floor, only need can with the U type of not going out the reinforcing bar wear muscle groove (5) shutoff.
9. The method for prefabricating the composite floor slab by the splicing type mold according to claim 1, wherein the method comprises the following steps: and the long-edge mold and the wide-edge mold assembled in the step S2 are reused in the production of the prefabricated composite floor slab with the same specification, and the mold is connected by detaching and assembling the adjacent corners at the four corners.
10. The method for prefabricating the composite floor slab by the splicing type mold according to claim 1, wherein the method comprises the following steps: after the splicing type prefabricated composite floor slab forming die in the same specification is used, the general connecting die (1) and the corner connecting die (2) are detached, the general connecting die (1) is used for splicing type prefabricated composite floor slab forming dies in other specifications, and the corner connecting die (2) is recycled as waste.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911114720.XA CN110722666A (en) | 2019-11-14 | 2019-11-14 | Splicing type prefabricated composite floor slab forming die and splicing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911114720.XA CN110722666A (en) | 2019-11-14 | 2019-11-14 | Splicing type prefabricated composite floor slab forming die and splicing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300605A (en) * | 2020-02-28 | 2020-06-19 | 山东建筑大学 | Superimposed floor precast slab side forms |
| CN111605033A (en) * | 2020-06-02 | 2020-09-01 | 江苏中鹰国际装配式建筑科技股份公司 | Method for prefabricating composite floor slab by splicing type mold |
| CN113953762A (en) * | 2021-10-21 | 2022-01-21 | 广州文冲船厂有限责任公司 | Square flange manufacturing method and square flange |
| CN115302615A (en) * | 2022-07-21 | 2022-11-08 | 湛江市润阳联合智造有限公司 | Modularized composite floor slab die and manufacturing method of composite floor slab |
-
2019
- 2019-11-14 CN CN201911114720.XA patent/CN110722666A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300605A (en) * | 2020-02-28 | 2020-06-19 | 山东建筑大学 | Superimposed floor precast slab side forms |
| CN111300605B (en) * | 2020-02-28 | 2021-02-26 | 山东建筑大学 | Superimposed floor precast slab side forms |
| CN111605033A (en) * | 2020-06-02 | 2020-09-01 | 江苏中鹰国际装配式建筑科技股份公司 | Method for prefabricating composite floor slab by splicing type mold |
| CN111605033B (en) * | 2020-06-02 | 2021-12-14 | 江苏千和装配式建筑科技股份公司 | Method for prefabricating composite floor slab by splicing type mold |
| CN113953762A (en) * | 2021-10-21 | 2022-01-21 | 广州文冲船厂有限责任公司 | Square flange manufacturing method and square flange |
| CN113953762B (en) * | 2021-10-21 | 2022-08-09 | 广州文冲船厂有限责任公司 | Square flange manufacturing method and square flange |
| CN115302615A (en) * | 2022-07-21 | 2022-11-08 | 湛江市润阳联合智造有限公司 | Modularized composite floor slab die and manufacturing method of composite floor slab |
| CN115302615B (en) * | 2022-07-21 | 2024-03-22 | 湛江市润阳联合智造有限公司 | Modular composite floor slab mold and composite floor slab manufacturing method |
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Effective date of registration: 20210525 Address after: 045000 No.1, Wenming Road, xisuohuang village, Guanshan Town, Pingding County, Yangquan City, Shanxi Province Applicant after: Shanxi qingxun Technology Co.,Ltd. Address before: 030000 No.25 Xiangyang Road, Yangwei village, Zhaokang Town, Xiangfen County, Linfen City, Shanxi Province Applicant before: Wang Xueqin |