CN112065159B - A prefabricated concrete foundation for temporary enclosure at construction site - Google Patents
A prefabricated concrete foundation for temporary enclosure at construction site Download PDFInfo
- Publication number
- CN112065159B CN112065159B CN202011006235.3A CN202011006235A CN112065159B CN 112065159 B CN112065159 B CN 112065159B CN 202011006235 A CN202011006235 A CN 202011006235A CN 112065159 B CN112065159 B CN 112065159B
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- foundation
- prefabricated
- fence
- spring
- connecting rod
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 title claims abstract description 8
- 239000011178 precast concrete Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
- E01F9/617—Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Fencing (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
本方案属于装配式建筑设计和施工领域，具体涉及一种施工现场临时围挡预制混凝土基础，包括：围栏杆和预制围墙基础；预制围墙基础包括：预制围墙基础上设有固定孔；围栏杆与固定孔配合；围栏杆上设有卡槽；还包括：第一弹簧、连杆、定位轴和第二弹簧；第一弹簧设置在固定孔中；定位轴与预制围墙基础固定连接；连杆与定位轴上转动连接；连杆与第一弹簧接触；第二弹簧一端与预制围墙基础固定连接，且另一端与连杆固定连接。本方案利用围栏杆自身重力，以及与预制围墙基础的配合，实现自动锁紧，故而减小人为操作。预制围墙基础采用工厂化制作，不仅可以批量生产，而且可以提前预制生产，保证了质量，节省时间，施工安装步骤简单，提高装配效率。
This scheme belongs to the field of prefabricated building design and construction, and specifically relates to a prefabricated concrete foundation for temporary enclosures at construction sites, including: fence poles and prefabricated fence foundations; the prefabricated fence foundation includes: a fixing hole is provided on the prefabricated fence foundation; the fence pole cooperates with the fixing hole; a slot is provided on the fence pole; and also includes: a first spring, a connecting rod, a positioning shaft, and a second spring; the first spring is set in the fixing hole; the positioning shaft is fixedly connected to the prefabricated fence foundation; the connecting rod is rotatably connected to the positioning shaft; the connecting rod contacts the first spring; one end of the second spring is fixedly connected to the prefabricated fence foundation, and the other end is fixedly connected to the connecting rod. This scheme uses the gravity of the fence pole itself, as well as its cooperation with the prefabricated fence foundation, to achieve automatic locking, thereby reducing manual operation. The prefabricated fence foundation is manufactured in a factory, which can not only be mass-produced, but also prefabricated in advance, ensuring quality, saving time, simplifying construction and installation steps, and improving assembly efficiency.
Description
Technical Field
The scheme belongs to the field of assembly type building design and construction, and particularly relates to a temporary enclosure precast concrete foundation in a construction site.
Background
The assembled building is taken as a future development direction of the building industry, is one of the most effective methods for realizing building industrialization at present, and is beneficial to improving the production efficiency. At present, the prefabricated concrete member is widely applied to the development of the large-force propulsion fabricated building in China, the prefabricated fabricated concrete enclosure foundation is one of typical cases of the application of the prefabricated fabricated building technology, and the prefabricated fabricated enclosure foundation consists of four prefabricated enclosure foundation structures, so that the use requirements of the fabricated structures are met, the design principles of integration, standardization, modularization and universalization are also followed, the construction efficiency is improved in a mode of few specifications and multiple combinations, and the cost is reduced.
But traditional prefabricated basis enclosure is equipped with the screw hole on the wall to the connected mode between rail pole, prefabricated basis enclosure, is equipped with the external screw thread on the rail, and is rotatory to the rail through manual operation, and then makes the screw-thread fit screw up fixedly, and the operation is wasted time and energy like this.
Disclosure of Invention
This scheme aim at provides a job site temporary enclosure precast concrete basis convenient to it is fixed to solve manual operation and all fix the problem of screwing up a plurality of enclosure rails.
In order to achieve the purpose, the scheme provides a temporary enclosure precast concrete foundation for a construction site. The prefabricated enclosure foundation comprises a first prefabricated enclosure foundation, a second prefabricated enclosure foundation, a third prefabricated enclosure foundation and a fourth prefabricated enclosure foundation, wherein the first prefabricated enclosure foundation, the second prefabricated enclosure foundation, the third prefabricated enclosure foundation and the fourth prefabricated enclosure foundation are assembled in sequence according to the first prefabricated enclosure foundation, the second prefabricated enclosure foundation, the third prefabricated enclosure foundation and the fourth prefabricated enclosure foundation, a fixing hole is formed in the prefabricated enclosure foundation, the fence rod is matched with the fixing hole, a clamping groove is formed in the fence rod, the construction site temporary enclosure prefabricated concrete foundation further comprises a first spring, a connecting rod, a locating shaft, a second spring and a third spring, the first spring is arranged in the fixing hole, the locating shaft is fixedly connected with the prefabricated enclosure foundation, the connecting rod is rotatably connected with the locating shaft, one end of the connecting rod is fixedly connected with the prefabricated enclosure foundation, the other end of the connecting rod is fixedly connected with the connecting rod, the free end of the connecting rod is arc-shaped, and the free end of the connecting rod is clamped with the clamping groove.
The prefabricated enclosure foundation is assembled according to the first prefabricated enclosure foundation, the second prefabricated enclosure foundation, the third prefabricated enclosure foundation and the fourth prefabricated enclosure foundation in sequence, the enclosure rail is placed in the fixing hole, the first spring is forced to move downwards, the connecting rod is pushed to move, the free end of the connecting rod is tilted up under the action of the locating shaft and clamped into the clamping groove of the enclosure rail, and therefore the enclosure rail and the prefabricated enclosure rail foundation are fixed.
The scheme has the beneficial effects that aiming at the traditional locking mode, the scheme utilizes the self gravity of the fence and the cooperation of the fence with the prefabricated fence foundation to realize automatic locking, so that manual operation is reduced. The prefabricated enclosure foundation is manufactured in a factory, so that the field operation is reduced, the operation time can be effectively controlled, mass production can be realized, the prefabricated production can be performed in advance, the quality is ensured, the time is saved, the construction and installation steps are simple, and the assembly efficiency is improved. Meanwhile, the dissonance brought by the foundation construction to the surrounding environment is reduced, and the success rate of the foundation construction is greatly improved.
Further, the draw-in groove is established to "L" type, when the rail pole downwardly moving, extrusion spring, connecting rod free end perk, in the draw-in groove of rail is gone into to the card, and rotatory rail makes the connecting rod fall into in the recess of draw-in groove, prevents that the rail pole is rotatory to make the railing roll-off draw-in groove, locks the connecting rod simultaneously.
The warning device comprises a pressing plate, a second spring and a pressure sensor, wherein a wire is arranged in a connecting rod, the second spring is fixedly connected with the pressing plate, the pressure sensor is arranged below the second spring, a storage battery is arranged in a rail rod, a contact piece with conductivity is arranged in a rail rod clamping groove, the storage battery, the contact piece, the warning board and the pressure sensor are connected through the wire, the warning board is connected with the pressure sensor in series, and when a pedestrian passes through the outside of a construction rail, the gravity sensor is stressed, so that a circuit is conducted, the warning board is lightened, the passersby is reminded to be far away from a construction site, and danger is avoided. Meanwhile, when the pedestrians pass by, the pedestrians are on, and when the pedestrians do not pass by, the warning board is not on, so that the power supply is saved, and the resource waste is avoided.
The prefabricated enclosure foundation is characterized in that a light-sensitive resistor is arranged outside a prefabricated enclosure foundation, a storage battery is arranged in an enclosure rod, a conductive contact piece is arranged in an enclosure rod clamping groove, the storage battery, the contact piece, the light-sensitive resistor and the light-sensitive resistor are connected through a wire, the light-sensitive resistor is connected in parallel, when sunlight irradiates in daytime, the light-sensitive resistor is reduced in resistance, the current is increased, the circuit is conducted, the light-sensitive resistor is short-circuited and cannot be lightened, no sunlight irradiates at night, the light-sensitive resistor is increased, the circuit is disconnected, and a light-sensitive resistor passage is lightened, so that pedestrians are reminded of avoiding a construction site at night.
Drawings
FIG. 1 is a schematic view of a prefabricated enclosure according to an embodiment of the present invention.
Fig. 2 is a front view of a prefabricated enclosure according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a prefabricated enclosure No. two according to an embodiment of the present invention.
Fig. 4 is a partial sectional view of the fixing hole B according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of a prefabricated enclosure No. three according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a prefabricated enclosure No. four according to an embodiment of the present invention.
Fig. 7 is a schematic view of the rail locking of the embodiment of the present invention.
Fig. 8 is a schematic diagram of an embodiment a of the present invention.
Fig. 9 is a partial schematic view of a rail bar according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of night warning according to an embodiment of the invention.
Detailed Description
The following is a further detailed description of the embodiments:
The reference numerals in the attached drawings of the specification comprise a rail 1, a prefabricated enclosure foundation 2, a connecting rod 3, a first spring 4, a positioning shaft 5, a contact piece 6, a storage battery 7, a warning sign 8, a second spring 9, a pressure sensor 10, a lead 11, a clamping groove 12, a third spring 13, a first prefabricated enclosure foundation 14, a second prefabricated enclosure foundation 15, a third prefabricated enclosure foundation 16, a fourth prefabricated enclosure foundation 17 and a photoresistor 18.
An example is substantially as shown in figure 1:
The prefabricated enclosure foundation is processed and arranged in a combined mode, and the design principles of integration, standardization, modularization and universalization are also followed except for meeting the use requirement of an assembled structure, so that the construction efficiency is improved in a mode of few specifications and multiple combinations, and the cost is reduced. The method has the advantages that firstly, the prefabricated foundation manufactured in a factory is adopted, the on-site operation is reduced, the operation time can be effectively controlled, secondly, the dissonance of the foundation construction to the surrounding environment is reduced, and the success rate of the foundation construction is greatly improved. The method not only can realize batch production, but also can perform production in advance, ensures quality, saves time, has simple construction and installation steps, and improves assembly efficiency.
As shown in fig. 2:
The prefabricated enclosure foundation number 14 is of a rectangular structure, rectangular bodies with connecting holes reserved are embedded in the rectangular structure, and the materials are all concrete.
As shown in fig. 3:
The cross section of the prefabricated enclosing wall foundation II 15 is in the shape of an equilateral trapezoid. The both ends of basic body enclosure foundation plate are provided with the enclosure and stay the groove. The left side is equipped with the stay, and the right side is equipped with the stay, and has reserved the connecting hole in the right side recess, and the enclosure basis is settled and is had two studs to carry out construction hoist and mount.
As shown in fig. 4:
Be equipped with the fixed orifices on the prefabricated enclosure basis 2, enclosure railing 1 sets up in the fixed orifices, is equipped with first spring 4 in the prefabricated enclosure basis 2, and first spring 4 sets up in the fixed orifices below, and first spring 4 contacts with enclosure railing 1. The connecting rod 3 is arranged below the first spring 4 and is in contact with the first spring 4, the third spring 13 is arranged below the connecting rod 3 and is fixedly connected with the connecting rod, and the other end of the third spring 13 is fixedly connected with the prefabricated enclosure foundation 2. The prefabricated enclosure foundation 2 is provided with a positioning shaft 5 fixedly connected, the connecting rods 3 are hinged with the positioning shaft 5, and the positioning shaft 5 is arranged between the connecting rods 3.
As shown in fig. 5:
The cross section shape of the prefabricated enclosing wall foundation No. 16 structural foundation body is an nonstandard L-shaped cross section, and a reserved connecting hole is formed in the upper portion of the structure and used for inserting reinforcing steel bars, so that other prefabricated enclosing wall foundations can be connected conveniently.
As shown in fig. 6:
The cross section of the prefabricated enclosing wall foundation IV 17 is in the shape of an equilateral trapezoid. The foundation body enclosure foundation slab both ends are provided with the enclosure and stay the groove, and have reserved connecting hole, and the enclosure foundation is settled and is had two studs to carry out construction hoist and mount.
As shown in fig. 7-9:
The connecting rod 3 is internally provided with a lead 11, the rail rod 1 is provided with a clamping groove 12, the clamping groove 12 is internally provided with a contact piece 6 with conductive property, the rail rod 1 is internally provided with a storage battery 7 of about 5V, and the purpose is only for the warning sign 8 to work. The contact pieces 6 in the clamping grooves 12 at the two ends are externally connected with a lead 11, and the lead 11 is led out to be connected with the storage battery 7. The prefabricated enclosure foundation 2 is externally provided with a warning board 8 which is fixedly connected with the prefabricated enclosure foundation, the warning board 8 is provided with a connector, and the prefabricated enclosure foundation is connected with the connector through a lead 11. Be equipped with pressure sensing device in one meter from prefabricated enclosure basis 2 outer ground, including second spring 9 and pressure sensor 10, warning sign 8 connector is connected through wire 11 with pressure sensor 10, and warning sign 8 is connected through wire 11 with the second spring. When the rail 1 is inserted into the fixing hole, the first spring 4 moves downwards to push the connecting rod 3 to move downwards, under the action of the positioning shaft 5, the other end of the connecting rod 3 is tilted to be clamped into the clamping groove 12, the rail 1 is rotated to enable the connecting rod 3 to be clamped into the upper groove part of the clamping groove 12, and the rail 1 is prevented from being ejected out of the fixing hole. When the connecting rod 3 clamps the rail 1, the connecting rod 3 is contacted with the contact piece 6, and the conducting wire 11 is communicated. When the ground is pressurized, the second spring 9 moves downwards to contact the pressure sensor 10 to form a closed loop, the pressure sensing device is connected with the warning board in series, the circuit is conducted, the warning board 8 is lightened, when the ground is not pressurized, the second spring 9 is not contacted with the pressure sensor 10, the circuit is disconnected, and the lamp of the warning board 8 is not lightened.
The other warning boards 8 of the prefabricated enclosure foundation 2 are connected with photoresistors in parallel, when the light source irradiates, the photoresistors are reduced in resistance, the parallel circuit is conducted, and then the warning boards 8 are short-circuited, so that the light source is not lightened. On the contrary, when no light source irradiates, the resistance value of the photoresistor is increased, the parallel circuit is disconnected, and then the warning board 8 is connected, so that the luminous device is lightened to remind pedestrians.
As shown in fig. 10:
The prefabricated enclosure foundation is provided with a warning board 8 outside the prefabricated enclosure foundation, the prefabricated enclosure foundation is provided with a photoresistor 18 on the prefabricated enclosure foundation, a storage battery 7 is arranged in the enclosure rod 1, a contact piece 6 with conductivity is arranged in a clamping groove 12 of the enclosure rod 1, the storage battery 7, the contact piece 6, the warning board 8 and the photoresistor 18 are connected through a lead 11, the warning board 8 is connected with the photoresistor 18 in parallel, when sunlight irradiates in daytime, the resistance of the photoresistor 18 is reduced, the current is increased, the circuit is conducted, the warning board 8 is short-circuited and then cannot be lightened, the sunlight irradiates at night, the resistance of the photoresistor 18 is increased, the circuit is disconnected, and then a warning board 8 passage is lightened, so that pedestrians are reminded of avoiding construction sites in the evening.
According to the scheme operation method, the rail 1 is inserted into the fixing hole, the first spring 4 moves downwards, the connecting rod 3 is tilted at one circular arc end under the action of the positioning shaft 5 and is clamped into the clamping groove 12 of the rail 1, and the rail 1 is rotated to enable the connecting rod 3 to fall into the groove of the clamping groove 12.
During daytime construction, a pedestrian walks through the prefabricated enclosure foundation 2, steps on the pressure sensing device, and the second spring 9 is contacted with the pressure sensor 10, so that a circuit is conducted, the warning board 8 is lightened, and the pedestrian is reminded.
When the night rest, because the light is darker, the photoresistor does not receive the light source irradiation, the parallel circuit is disconnected, and the warning board 8 is normally on, so that pedestrians are reminded.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006235.3A CN112065159B (en) | 2020-09-23 | 2020-09-23 | A prefabricated concrete foundation for temporary enclosure at construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006235.3A CN112065159B (en) | 2020-09-23 | 2020-09-23 | A prefabricated concrete foundation for temporary enclosure at construction site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112065159A CN112065159A (en) | 2020-12-11 |
| CN112065159B true CN112065159B (en) | 2025-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011006235.3A Active CN112065159B (en) | 2020-09-23 | 2020-09-23 | A prefabricated concrete foundation for temporary enclosure at construction site |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205743260U (en) * | 2016-07-04 | 2016-11-30 | 王晓东 | A kind of fence |
| CN207004187U (en) * | 2017-07-13 | 2018-02-13 | 江西双威环保建材有限公司 | A kind of sound insulation fence building block |
| CN109138607A (en) * | 2018-11-06 | 2019-01-04 | 中国建筑第二工程局有限公司 | Assembly type building construction site maintenance warning device and installation method thereof |
| CN213063216U (en) * | 2020-09-23 | 2021-04-27 | 新疆新冶建筑集成科技有限公司 | Temporary enclosure precast concrete foundation for construction site |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3144183U (en) * | 2008-05-16 | 2008-08-21 | 梅野セメント工業株式会社 | Concrete formwork for concrete block fence foundation rising part |
| JP2017166188A (en) * | 2016-03-15 | 2017-09-21 | 株式会社武井工業所 | Foundation member of plate-form fence |
| CN210152427U (en) * | 2019-05-30 | 2020-03-17 | 成都交投建筑工业化有限公司 | Fender is enclosed in portable construction |
-
2020
- 2020-09-23 CN CN202011006235.3A patent/CN112065159B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205743260U (en) * | 2016-07-04 | 2016-11-30 | 王晓东 | A kind of fence |
| CN207004187U (en) * | 2017-07-13 | 2018-02-13 | 江西双威环保建材有限公司 | A kind of sound insulation fence building block |
| CN109138607A (en) * | 2018-11-06 | 2019-01-04 | 中国建筑第二工程局有限公司 | Assembly type building construction site maintenance warning device and installation method thereof |
| CN213063216U (en) * | 2020-09-23 | 2021-04-27 | 新疆新冶建筑集成科技有限公司 | Temporary enclosure precast concrete foundation for construction site |
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| CN112065159A (en) | 2020-12-11 |
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