CN115821815B - Prefabricated building assembly site limited overload blocking device and method - Google Patents
Prefabricated building assembly site limited overload blocking device and method Download PDFInfo
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- CN115821815B CN115821815B CN202211508090.6A CN202211508090A CN115821815B CN 115821815 B CN115821815 B CN 115821815B CN 202211508090 A CN202211508090 A CN 202211508090A CN 115821815 B CN115821815 B CN 115821815B
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000009417 prefabrication Methods 0.000 description 1
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Abstract
一种装配式建筑装配现场限超载拦阻装置及方法，它包括承重箱、载重机构、充气装置和阻拦机构，通过在承重箱内设置载重机构和充气装置，阻拦机构位于承重箱前方与充气装置连通，盖板与承重箱配合并与载重机构的上端面接触，承重箱和阻拦机构埋设在堆场和指定区之间道路的基坑内，管线位于阻拦机构前方，载工具载运装载好的构件从堆场方向向指定区运动，并将经过承重箱的盖板，盖板下侧面不与充气装置接触时，则运载工具可顺利通过，盖板施加充气装置的压力使气体进入阻拦机构的气压腔，驱动阻拦柱上升，阻挡运载工具越过，避免道路前方的管线受损，无需电力驱动，无需人员值守，操作简单方便。
A limited overload blocking device and method for assembly site of prefabricated buildings, comprising a load-bearing box, a load-bearing mechanism, an inflation device and a blocking mechanism. The load-bearing mechanism and the inflation device are arranged in the load-bearing box, the blocking mechanism is located in front of the load-bearing box and is connected to the inflation device, the cover plate cooperates with the load-bearing box and contacts with the upper end surface of the load-bearing mechanism, the load-bearing box and the blocking mechanism are buried in the foundation pit of the road between the yard and the designated area, the pipeline is located in front of the blocking mechanism, the carrier carries the loaded components and moves from the yard to the designated area, and passes through the cover plate of the load-bearing box. When the lower side of the cover plate does not contact the inflation device, the carrier can pass smoothly, the cover plate applies pressure from the inflation device to make the gas enter the air pressure chamber of the blocking mechanism, drive the blocking column to rise, block the carrier from passing, and avoid damage to the pipeline in front of the road. No electric drive is required, no personnel are required to be on duty, and the operation is simple and convenient.
Description
Technical Field
The invention belongs to the technical field of assembly control of assembly type building site assembly pipes, and relates to an assembly type building site overload limiting blocking device and method.
Background
The prefabricated building components are prefabricated in a prefabricated factory building and then transferred to a site for assembly, the components with different shapes and weights are transferred to a designated area for assembly by a transfer tool during assembly, various pipelines or pre-buried circuits used during assembly are usually pre-buried between the yard and the designated area, particularly waterway network management used in the assembly process, a plurality of components are usually required to be transferred to the designated area at one time in order to improve the component transfer efficiency, when the transfer tool is used for carrying the components overweight, the pre-buried pipelines and circuits are crushed or road foundation is damaged when the components pass through a channel between the yard and the designated area, and although the prefabricated components can know the approximate weight after being formed, the components are not overweight during transfer can be controlled by adopting a complicated diversion and calculation mode on site.
Disclosure of Invention
The invention aims to solve the technical problem of providing an overload limiting blocking device and method for an assembly site of an assembly type building, wherein a loading mechanism and an air charging device are arranged in a bearing box, the blocking mechanism is positioned in front of the bearing box and is communicated with the air charging device, a cover plate is matched with the bearing box and contacts with the upper end face of the loading mechanism, the bearing box and the blocking mechanism are buried in a foundation pit of a road between a storage yard and a designated area, a pipeline is positioned in front of the blocking mechanism, a loaded component carried by the loading tool moves from the storage yard direction to the designated area and passes through the cover plate of the bearing box, when the lower side surface of the cover plate is not contacted with the air charging device, the loading tool can smoothly pass through, the cover plate applies the pressure of the air charging device to enable air to enter an air pressure cavity of the blocking mechanism to drive a blocking column to ascend, the loading tool is prevented from crossing, the pipeline in front of the road is prevented from being damaged, no electric drive is needed, and the operation is simple and convenient.
The technical scheme includes that the overload limiting arresting device comprises a bearing box, a load mechanism, an inflating device and a arresting mechanism, wherein the load mechanism and the inflating device are located in the bearing box, an air pressure cavity of the arresting mechanism is communicated with the inflating device, a cover plate is matched with the bearing box and is in contact with the upper end face of the load mechanism, and after the load borne by the cover plate applies pressure to the inflating device, the inflating device inflates the arresting mechanism to drive the arresting column to rise.
The bearing box is a hollow box body with an opening at the upper side, and the annular frame at the lower side of the cover plate is in sliding contact with the inner wall of the hollow box body.
One side of the bearing box is provided with a through hole, and the cover plate is provided with at least one pressure relief hole communicated with the bearing box.
The load mechanism comprises a support tube and a compression column which is in sleeve joint and sliding fit, a spring is sleeved between the support tube and the compression column, and two ends of the spring are respectively abutted against the baffle plates at the ends of the support tube and the compression column.
The number of the load-carrying mechanisms is multiple, the load-carrying mechanisms are uniformly distributed in the bearing boxes at intervals, and the nominal weights borne by the load-carrying mechanisms are equal.
The air charging device is a pressure air bag, and an air outlet arranged at one end of the air charging device is communicated with an air pressure cavity of the blocking mechanism through an air pipe.
The upper side surface of the air charging device is lower than the upper end surface of the loading mechanism, and the upper side surface of the air charging device is not contacted with the cover plate under the condition that the cover plate does not bear the load.
The blocking mechanism comprises a blocking column matched with the air cylinder, the space between the air cylinder and the blocking column is an air pressure cavity, and an air injection port arranged on one side of the air pressure cavity is communicated with the air pipe.
The blocking column is retracted in the cylinder under the condition that the inflator is not pressurized, and the blocking column rises to a preset height when the inflator is pressurized and exceeds a preset load pressure.
The overload limiting arresting method of the overload limiting arresting device for the assembly site of the assembled building comprises the following steps of:
S1, installing a bearing box, a blocking mechanism and an air pipe in a foundation pit on a road between a storage yard and a designated area, wherein a pipeline pre-buried in the road is positioned in front of the blocking mechanism;
S2, transferring the components, wherein the loaded components are carried by a carrying tool to move from the storage yard direction to a designated area, and pass through a cover plate of the bearing box;
s3, when the carrier passes through the cover plate under pressure, the carrier descends along with the cover plate after the cover plate bears the pressure and then applies the pressure of the pressure column;
s4, detecting, wherein in S3, when the carrier completely enters the upper part of the cover plate and the lower side surface of the cover plate is not contacted with the air charging device, the member is not overloaded, and the carrier can smoothly move to a designated area;
S5, blocking, in S3, after the carrier completely enters the upper part of the cover plate, and after the pressure of the inflating device is applied to the lower side surface of the cover plate, gas in the inflating device enters a pneumatic cavity of the blocking mechanism to drive the blocking column to rise, the carrier is blocked from crossing, and the damage of a pipeline in front of a road is avoided.
The beneficial effects of the invention are mainly reflected in:
A loading mechanism and an air charging device are arranged in the bearing box, and the bearing box is sealed by sliding fit of a cover plate to avoid dust entering;
The annular frame is arranged on the lower side surface of the cover plate and is in sliding contact with the inner wall of the bearing box, so that the stability of the cover plate when the cover plate is pressed and then descends is improved, and meanwhile, each loading mechanism and each charging device can be stressed uniformly when being pressed.
According to the preset overload limit weight, the number of the loading mechanisms is planned in advance, and only when the cover plate is pressed by the overload weight, the cover plate can apply pressure to the air charging device, so that the blocking column is prevented from extending out of the air cylinder under the condition of light load.
When the cover plate applies pressure to the air charging device, air in the air charging device enters the air pressure cavity of the blocking mechanism to drive the blocking column to ascend to block the overloaded vehicle from crossing the front pipeline, so that the pipeline and the road are prevented from being excessively heavy and damaged.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic front view of fig. 1.
Fig. 3 is a schematic top view of fig. 2.
FIG. 4 is a schematic illustration of the layout of the load mechanism and inflator device within the load carrying tank of the present invention.
Fig. 5 is a schematic top view of fig. 4.
Fig. 6 is a schematic structural view of the load mechanism of the present invention.
Fig. 7 is a schematic structural view of the blocking mechanism of the present invention.
Fig. 8 is a schematic view of the internal structure of fig. 7.
In the figure, a bearing box 1, a cover plate 11, an annular frame 12, a through hole 13, a pressure relief hole 14, a loading mechanism 2, a supporting tube 21, a pressure receiving column 22, a spring 23, an inflator 3, an exhaust port 31, an air pipe 32, a blocking mechanism 4, an air cylinder 42, a blocking column 41 and an air pressure cavity 43.
Detailed Description
Referring to fig. 1-8, the overload limiting arresting device for the assembled building assembly site comprises a bearing box 1, a load mechanism 2, an inflating device 3 and an arresting mechanism 4, wherein the load mechanism 2 and the inflating device 3 are positioned in the bearing box 1, an air pressure cavity 43 of the arresting mechanism 4 is communicated with the inflating device 3, a cover plate 11 is matched with the bearing box 1 and is in contact with the upper end face of the load mechanism 2, and after the load borne by the cover plate 11 applies pressure to the inflating device 3, the inflating device 3 inflates the arresting mechanism 4 to drive an arresting column 41 to rise. When the device is used, the load bearing box 1 and the blocking mechanism 4 are buried in a foundation pit of a road between a storage yard and a designated area, a pipeline is positioned in front of the blocking mechanism 4, a loaded component carried by a carrier moves from the storage yard direction to the designated area, and passes through the cover plate 11 of the load bearing box 1, when the lower side surface of the cover plate 11 is not contacted with the inflator device 3, the carrier can smoothly pass through, the cover plate 11 applies the pressure of the inflator device 3 to enable gas to enter the pneumatic cavity 43 of the blocking mechanism 4, the blocking column 41 is driven to rise, the carrier is blocked from crossing, the pipeline in front of the road is prevented from being damaged, electric driving is not needed, no personnel is needed to watch, and the operation is simple and convenient.
In a preferred scheme, the bearing box 1 is a hollow box body with an opening at the upper side, and the annular frame 12 at the lower side of the cover plate 11 is in sliding contact with the inner wall of the hollow box body. During manufacturing, the annular frame 12 and the bearing box 1 adopt sliding surfaces, so that jamming is avoided in the sliding process, and meanwhile, the radial movement direction of the cover plate 11 is limited due to the sliding of the annular frame 12 and the inner wall of the bearing box 1, so that the stability of the cover plate 11 during moving is improved.
In a preferred scheme, a through hole 13 is arranged on one side of the bearing box 1, and at least one pressure relief hole 14 is arranged on the cover plate 11 and communicated with the bearing box 1. In use, the through hole 13 is used for penetrating through the air pipe 32, and the pressure relief hole 14 is used for discharging part of air in the load-bearing box 1 when the cover plate 11 slides down or enabling the air to enter the load-bearing box 1 when the cover plate 11 rises.
In a preferred scheme, the loading mechanism 2 comprises a compression column 22 which is sleeved on the support tube 21 and is in sliding fit, a spring 23 is sleeved between the support tube 21 and the compression column 22, and two ends of the spring 23 are respectively abutted against baffles at the ends of the support tube 21 and the compression column 22. When the support tube 21 is used, the compression column 22 is in contact with the cover plate 11, the spring 23 is compressed after the compression column 22 is compressed, and the compression column 22 slides along the support tube 21, so that stability is improved.
Preferably, the load carried by each spring 23 is calculated according to the overload weight, the total number of the required load mechanisms 2 is planned, and then a plurality of load mechanisms 2 are uniformly distributed in the load box 1, so that each load mechanism 2 can bear the force uniformly.
In a preferred scheme, the number of the load-carrying mechanisms 2 is a plurality of the load-carrying mechanisms and the load-carrying mechanisms are uniformly distributed in the load-bearing boxes 1 at intervals, and the nominal weights carried by each load-carrying mechanism 2 are equal. When the load mechanism is used, when the nominal weight borne by each load mechanism 2 is equal, the borne stress points bear balanced stress, and the clamping stagnation of one side stress caused by the lateral deflection of the cover plate 11 is avoided.
In a preferred embodiment, the inflator 3 is a pressure air bag, and the air outlet 31 disposed at one end is communicated with the air pressure chamber 43 of the blocking mechanism 4 through the air pipe 32. In use, the inflator 3 communicates with the air pressure chamber 43 of the blocking mechanism 4 and inflates the air pressure chamber 43 of the blocking mechanism 4 when the inflator 3 is pressurized.
In a preferred scheme, the number of the inflatable devices 3 is at least two and the inflatable devices 3 are uniformly distributed in the bearing box 1 at intervals, the upper side surface of the inflatable device 3 is lower than the upper end surface of the load mechanism 2, and the upper side surface of the inflatable device 3 is not contacted with the cover plate 11 under the condition that the cover plate 11 does not bear load. In use, when the pressure carried by the cover plate 11 is outside the overload prefabrication range, the cover plate 11 is not in contact with the inflator 3, and the inflator 3 does not inflate the air pressure chamber 43.
In a preferred embodiment, the blocking mechanism 4 includes a blocking post 41 matched with an air cylinder 42, a space between the air cylinder 42 and the blocking post 41 is an air pressure cavity 43, and an air injection port arranged at one side of the air pressure cavity 43 is communicated with the air pipe 32. In use, when the pneumatic chamber 43 is in communication with the inflator 3, the blocking post 41 is positioned within the cylinder 42 without the inflator 3 being pressurized.
In a preferred embodiment, the blocking column 41 is retracted in the cylinder 42 without the inflator 3 being pressurized, and the blocking column 41 is raised to a predetermined height when the inflator 3 is pressurized and exceeds a predetermined load pressure. In use, when the inflator 3 receives the pressure of the cover plate 11, it indicates that the member carried by the vehicle is overloaded, and the inflator 3 supplements air to the air pressure chamber 43 to drive the blocking column 41 to rise to block the vehicle from moving forward.
In a preferred scheme, the overload limiting and blocking method of the overload limiting and blocking device for the assembly site of the assembled building comprises the following steps of:
S1, installing a bearing box 1, a blocking mechanism 4 and an air pipe 32 in a foundation pit on a road between a storage yard and a designated area, wherein a pipeline pre-buried in the road is positioned in front of the blocking mechanism 4, in the step, the upper end surfaces of a compression column 22 and a cover plate 11 are level with the ground, and the designated area is positioned in front of the blocking mechanism 4;
s2, transferring the components, wherein the loaded components are carried by a carrier to move from the storage yard direction to a designated area and pass through the cover plate 11 of the bearing box 1;
S3, when the carrier passes through the cover plate 11 under pressure, the carrier descends along with the cover plate 11 after the cover plate 11 bears the pressure and then applies the pressure of the pressure column 22;
s4, detecting, in S3, when the carrier completely enters the upper part of the cover plate 11 and the lower side surface of the cover plate 11 is not contacted with the inflator 3, indicating that the member is not overloaded, the carrier can smoothly move to a designated area;
s5, blocking, in S3, after the carrier completely enters the upper part of the cover plate 11, and after the pressure of the inflator 3 is applied to the lower side surface of the cover plate 11, the gas in the inflator 3 enters the pneumatic cavity 43 of the blocking mechanism 4, so that the blocking column 41 is driven to ascend, the carrier is blocked from crossing, and the damage to the pipeline in front of a road is avoided.
According to the method, under the condition that external power is not needed, blocking of overload components during transportation is achieved, pipelines on a road in front are prevented from being damaged, meanwhile, roadbed damage is prevented, and unattended operation is achieved.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (6)
1. The on-site overload limiting blocking device for the assembled building is characterized by comprising a bearing box (1), a loading mechanism (2), an air charging device (3) and a blocking mechanism (4), wherein the loading mechanism (2) and the air charging device (3) are positioned in the bearing box (1), an air pressure cavity (43) of the blocking mechanism (4) is communicated with the air charging device (3), a cover plate (11) is matched with the bearing box (1) and is contacted with the upper end surface of the loading mechanism (2), and after the loading borne by the cover plate (11) applies pressure to the air charging device (3), the air charging device (3) charges air to the blocking mechanism (4) to drive a blocking column (41) to rise;
a through hole (13) is formed in one side of the bearing box (1), and at least one pressure relief hole (14) is formed in the cover plate (11) and communicated with the bearing box (1);
The loading mechanism (2) comprises a compression column (22) which is sleeved on the support tube (21) and is in sliding fit, a spring (23) is sleeved between the support tube (21) and the compression column (22), and two ends of the spring (23) are respectively abutted against baffles at the ends of the support tube (21) and the compression column (22);
the air charging device (3) is a pressure air bag, and an air outlet (31) arranged at one end is communicated with an air pressure cavity (43) of the blocking mechanism (4) through an air pipe (32);
The blocking mechanism (4) comprises a blocking column (41) matched with an air cylinder (42), an air pressure cavity (43) is arranged in a space between the air cylinder (42) and the blocking column (41), and an air injection port arranged on one side of the air pressure cavity (43) is communicated with the air pipe (32).
2. The overload limiting arresting device for the assembled building assembly site is characterized in that the bearing box (1) is a hollow box body with an opening at the upper side, and the annular frame (12) at the lower side of the cover plate (11) is in sliding contact with the inner wall of the hollow box body.
3. The overload limiting arresting device for the assembled building assembly site is characterized in that the number of the load-carrying mechanisms (2) is multiple, the load-carrying mechanisms are uniformly distributed in the load-bearing boxes (1) at intervals, and nominal weights borne by the load-carrying mechanisms (2) are equal.
4. The overload limiting arresting device for the assembled building assembly site is characterized in that at least two inflatable devices (3) are uniformly distributed in a bearing box (1) at intervals, the upper side face of each inflatable device (3) is lower than the upper end face of a loading mechanism (2), and the upper side face of each inflatable device (3) is not contacted with a cover plate (11) under the condition that the cover plate (11) does not bear loads.
5. The overload limiting blocking device for the assembled building assembly site according to claim 1, wherein the blocking column (41) is retracted in the air cylinder (42) under the condition that the air charging device (3) is not pressed, and the blocking column (41) is lifted to a preset height when the air charging device (3) is pressed and exceeds a preset loading pressure.
6. The overload limiting and blocking method of the overload limiting and blocking device for the assembly site of the assembled building according to any one of claims 1 to 5, is characterized by comprising the following steps:
S1, mounting, namely mounting a bearing box (1), a blocking mechanism (4) and an air pipe (32) in a foundation pit on a road between a storage yard and a designated area, wherein a pipeline pre-buried in the road is positioned in front of the blocking mechanism (4), and in the step, the upper end surfaces of a compression column (22) and a cover plate (11) are level with the ground, and an assembly designated area is positioned in front of the blocking mechanism (4);
s2, transferring the components, wherein the loaded components are carried by a carrier to move from the storage yard direction to a designated area and pass through a cover plate (11) of the bearing box (1);
S3, when the carrier passes through the cover plate (11), the cover plate (11) bears the pressure, and after the pressure of the pressure-bearing column (22) is applied, the carrier descends along with the cover plate (11);
S4, detecting, in S3, when the carrier completely enters the upper part of the cover plate (11) and the lower side surface of the cover plate (11) is not contacted with the inflator (3), indicating that the member is not overloaded, and the carrier can smoothly move to a designated area;
S5, blocking, in S3, after the carrier completely enters the upper part of the cover plate (11), and after the pressure of the inflating device (3) is applied to the lower side surface of the cover plate (11), the gas in the inflating device (3) enters the pneumatic cavity (43) of the blocking mechanism (4), the blocking column (41) is driven to ascend, the carrier is blocked from crossing, and the pipeline in front of a road is prevented from being damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211508090.6A CN115821815B (en) | 2022-11-29 | 2022-11-29 | Prefabricated building assembly site limited overload blocking device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211508090.6A CN115821815B (en) | 2022-11-29 | 2022-11-29 | Prefabricated building assembly site limited overload blocking device and method |
Publications (2)
| Publication Number | Publication Date |
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| CN115821815A CN115821815A (en) | 2023-03-21 |
| CN115821815B true CN115821815B (en) | 2024-12-06 |
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| CN202211508090.6A Active CN115821815B (en) | 2022-11-29 | 2022-11-29 | Prefabricated building assembly site limited overload blocking device and method |
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| CN (1) | CN115821815B (en) |
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| CN201660857U (en) * | 2009-11-08 | 2010-12-01 | 王祥力 | Bridge or pavement load limiting protector |
| CN209227430U (en) * | 2018-12-03 | 2019-08-09 | 福建船政交通职业学院 | A kind of road and bridge freight weight limit equipment |
| CN211973225U (en) * | 2019-11-18 | 2020-11-20 | 陕西福林源路桥建设有限公司 | Traffic transport road and bridge weight limiting device |
| CN218952057U (en) * | 2022-11-29 | 2023-05-02 | 湖北高星建设工程有限公司 | Overload-preventing blocking device for component transfer |
Family Cites Families (7)
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| JP2007138860A (en) * | 2005-11-21 | 2007-06-07 | Calsonic Kansei Corp | Variable displacement compressor |
| CN104309636B (en) * | 2014-08-18 | 2016-03-23 | 中车青岛四方车辆研究所有限公司 | Self-align type prop head |
| WO2016090225A1 (en) * | 2014-12-05 | 2016-06-09 | Engineered Arresting Systems Corporation | Arresting fence system |
| JP2018017711A (en) * | 2016-07-19 | 2018-02-01 | 日本精工株式会社 | Vehicle weight measuring device |
| CN210529566U (en) * | 2019-08-07 | 2020-05-15 | 成都深蓝安捷交通设备有限公司 | Super mechanism is controlled based on automatic weighing apparatus of developments highway vehicle |
| CN213086642U (en) * | 2020-08-11 | 2021-04-30 | 长沙环境保护职业技术学院 | A bridge overload protection device with warning function |
| CN112647720B (en) * | 2020-12-17 | 2022-05-03 | 苏州柯利达装饰股份有限公司 | Maintenance device for assembly type building construction and using method thereof |
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- 2022-11-29 CN CN202211508090.6A patent/CN115821815B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201660857U (en) * | 2009-11-08 | 2010-12-01 | 王祥力 | Bridge or pavement load limiting protector |
| CN209227430U (en) * | 2018-12-03 | 2019-08-09 | 福建船政交通职业学院 | A kind of road and bridge freight weight limit equipment |
| CN211973225U (en) * | 2019-11-18 | 2020-11-20 | 陕西福林源路桥建设有限公司 | Traffic transport road and bridge weight limiting device |
| CN218952057U (en) * | 2022-11-29 | 2023-05-02 | 湖北高星建设工程有限公司 | Overload-preventing blocking device for component transfer |
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| CN115821815A (en) | 2023-03-21 |
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Effective date of registration: 20240409 Address after: 443300 Honghuatao village, Honghuatao Town, Yidu City, Yichang City, Hubei Province Applicant after: JIUZHOU SQUARE GARDEN NEW ENERGY Co.,Ltd. Country or region after: China Address before: 443302 Honghuatao Village, Honghuatao Town, Yidu City, Yichang City, Hubei Province (within the factory area of Jiuzhou Fangyuan New Energy Co., Ltd.) Applicant before: Hubei Gaoxing Construction Engineering Co.,Ltd. Country or region before: China |
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