CN108755518B - Road guard rail unit and guard rail - Google Patents
Road guard rail unit and guard rail Download PDFInfo
- Publication number
- CN108755518B CN108755518B CN201810764708.2A CN201810764708A CN108755518B CN 108755518 B CN108755518 B CN 108755518B CN 201810764708 A CN201810764708 A CN 201810764708A CN 108755518 B CN108755518 B CN 108755518B
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- rod
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- 230000006978 adaptation Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000283070 Equus zebra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/006—Lane control by movable lane separating barriers, e.g. shiftable barriers, retractable kerbs ; Apparatus or barriers specially adapted therefor, e.g. wheeled barriers
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a road guard rail unit which comprises a rail and a base, wherein the rail comprises a first vertical rod, a second vertical rod, a first cross rod, a second cross rod, a connecting rod and a fixing pin. The montant is fixed on the base, and the one end of first horizontal pole is articulated with first montant, and the other end is articulated with the one end of second horizontal pole, and the other end of second horizontal pole is articulated with the second montant. The connecting rod is equipped with expansion end and stiff end, stiff end swing joint on first horizontal pole, and the expansion end can rotate around the stiff end. The first vertical rod is provided with a first connecting piece, the second vertical rod is provided with a second connecting piece, and the first connecting piece and the second connecting piece are movably matched and connected. A guard rail formed by connecting the guard rail units is also disclosed. The guardrail is convenient to assemble and disassemble and convenient to move, the length of the guardrail can be reduced or increased at will according to the needs, and the danger caused by the pedestrian randomly crossing the guardrail is reduced.
Description
Technical Field
The invention relates to the technical field of road protection, in particular to a road guard rail unit and a guard rail.
Background
The rail guard at the center of the road is often used for separating motor vehicles running in opposite directions, the existing road rail guard is of an integral structure, the volume is fixed, the moving and the transportation are inconvenient, and pedestrians are sometimes far away from a zebra crossing, in order to save time, part of pedestrians can push the unit rail guard to pass through or directly cross the rail guard from the gap of the rail guard to reach the other side of the road, and if the owner of the motor vehicle running does not react timely, dangerous situations are easy to occur.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the contractible road guard rail which is convenient to move, easy to install and fix and capable of preventing pedestrians from crossing.
The technical scheme adopted by the invention is as follows:
the road guard rail unit comprises a rail and a base, wherein the base is used for fixing and supporting the rail, and the rail comprises a first vertical rod, a second vertical rod, a first cross rod, a second cross rod, a connecting rod and a fixing pin; the bottom ends of the first vertical rod and the second vertical rod are fixed on the base; one end of the first cross rod is hinged with the first vertical rod, the other end of the first cross rod is hinged with one end of the second cross rod, and the other end of the second cross rod is hinged with the second vertical rod; the connecting rod is provided with a movable end and a fixed end, the fixed end is movably connected to the first cross rod, the movable end can rotate around the fixed end, and when the movable end rotates to the second cross rod, the movable end is fixed on the second cross rod through a fixing pin; when the movable end rotates to the first cross rod, the movable end is fixed on the first cross rod through a fixing pin; the first vertical rod is provided with a first connecting piece, the second vertical rod is provided with a second connecting piece, and the first connecting piece can be connected with the second connecting piece in a movable fit manner.
When the invention is used, the first vertical rod and the second vertical rod are pulled to two sides, so that the first cross rod and the second cross rod are in a horizontal state, the movable end of the connecting rod is close to the second cross rod, the connecting rod is fixed on the second cross rod through the fixing pin, the connecting rod is in the horizontal state, and the stability of the first cross rod and the second cross rod is kept through the connecting rod. When moving, the connecting rod is rotated to enable the movable end of the connecting rod to be close to the first cross rod, and the connecting rod is fixed on the first cross rod through the fixing pin. The first vertical rod and the second vertical rod are pulled to the middle, the first cross rod and the second cross rod shrink inwards, the size of the guardrail is reduced, and the guardrail is easy to move.
Further, the railing further comprises a third cross bar and a fourth cross bar; the third cross rod and the fourth cross rod are respectively provided with a tip, the third cross rod is movably arranged in the first cross rod, the fourth cross rod is movably arranged in the second cross rod, and the tips of the third cross rod and the fourth cross rod are respectively upward.
When the guardrail is used, the third cross rod and the fourth cross rod are pulled out of the first cross rod and the second cross rod, the tips on the third cross rod and the fourth cross rod are exposed, the difficulty of pedestrians to cross the guardrail is increased, and the danger that the pedestrians randomly cross the guardrail is reduced. When the guardrail needs to be moved, the three cross bars and the fourth cross bar are retracted into the first cross bar and the second cross bar in a pulling mode, and municipal staff are not affected to move the guardrail.
In order to improve the safety of the guard rail during moving, it is further preferable that the first cross bar and the second cross bar are respectively provided with a first groove and a second groove extending along the length direction of the cross bar, and the openings of the grooves face upwards; the third cross bar and the fourth cross bar are respectively arranged in the first groove and the second groove in a sliding way.
Further, threaded through holes are formed in the bottoms of the first groove and the second groove, adjusting screws are arranged in the threaded through holes, and the adjusting screws are screwed in and screwed out to drive the third cross rod and the fourth cross rod to lift in the first groove and the second groove. The lifting of the cross rod is adjusted by the adjusting screw, the operation is simple and convenient, and the position of the cross rod can be fixed by the screw when the cross rod is adjusted in place.
Further, a groove is arranged in the base, an opening of the groove faces downwards, a first roller shaft, a second roller shaft and rollers are arranged in the groove, the first roller shaft is fixed on the groove, the lower end of the first roller shaft is hinged with the second roller shaft, and the rollers are fixed at one end of the second roller shaft which is not connected with the first roller shaft; the second roller shaft rotates downwards to drive the roller to extend out of the groove, and the second roller shaft rotates upwards to drive the roller to retract into the groove.
The roller is designed to facilitate the movement of the guard rail. When the guardrail needs to be fixed, the roller retracts into the groove, and the base is stable; when the guardrail needs to move, the idler wheels extend out of the grooves to push the guardrail idler wheels to roll on the bottom surface, so that the guardrail idler wheels are convenient to move.
Further, a first limiting block and a second limiting block are arranged in the groove; the first limiting block is arranged below the left side of the first roller shaft, the second limiting block is arranged on the right side of the first roller shaft in a vertically sliding mode, the left side face of the second roller shaft abuts against the first limiting block when the second roller shaft rotates to a vertical state, and the right side face of the second roller shaft abuts against the second limiting block.
When the roller extends out of the groove, the limiting block limits the rotation of the first roller shaft, so that the roller is prevented from retracting into the groove in the rolling process, and the using effect is deteriorated.
Further, a first threaded through hole and a connecting groove are formed in the first connecting piece, and the first threaded through hole penetrates through the connecting groove; the second connecting piece is provided with a connecting seat matched with the connecting groove, a second threaded through hole is formed in the connecting seat, the second threaded through hole is identical to the first threaded through hole, and the second threaded through hole corresponds to the first threaded through hole when the connecting seat is inserted into the connecting groove.
When more than two guardrail units are connected, the connecting seat of the first guardrail unit is inserted into the connecting groove of the second guardrail unit, and the screw rod is arranged in the second threaded through hole and the first threaded through hole. The relative positions of the two adjacent guard rails are fixed through the screw rod, so that the adjacent guard rail units can be conveniently and quickly installed and separated, and pedestrians can be prevented from passing through gaps between the two guard rail units.
Further, the fixed end of the connecting rod is provided with a connecting part, the first cross rod is provided with a through hole matched with the connecting part, and the connecting part is arranged in the through hole and can slide in the through hole; the movable end of connecting rod is equipped with location portion, and first horizontal pole and second horizontal pole all have seted up the location through-hole with location portion looks adaptation, and the end of location portion is equipped with spacing hole.
When the connecting rod is connected, the connecting rod is stretched towards the direction far away from the first cross rod, the positioning part of the movable end of the connecting rod is opposite to the positioning through hole of the second cross rod by rotating the connecting rod, the positioning part of the movable end of the connecting rod is pushed to penetrate through the positioning through hole of the second cross rod, and the fixing pin is inserted into the limiting hole to fix the connecting rod on the second cross rod. When the guardrail needs to be moved, the connecting rod is stretched in the direction away from the first cross rod, the positioning part of the movable end of the connecting rod is opposite to the positioning through hole of the first cross rod by rotating the connecting rod, the positioning part of the movable end of the connecting rod is pushed to penetrate through the positioning through hole of the first cross rod, and the fixing pin is inserted into the limiting hole of the connecting rod to fix the connecting rod on the first cross rod.
Further, the railing is provided with two layers of transverse rods. The arrangement of two layers of cross bars for the higher guard rail reduces the guard rail intermittence to prevent pedestrians from passing under the guard rail.
A protective fence is formed by connecting any protective fence units.
The connecting seat of the first guardrail unit is inserted into the connecting groove of the second guardrail unit, the first threaded through hole is aligned with the second threaded through hole, the connecting screw is screwed into the first threaded through hole and the second threaded through hole, the two guardrail units are fixedly connected together through threaded connection, and the third guardrail unit and the fourth guardrail unit are sequentially connected until the required length is reached.
The invention has the beneficial effects that: compared with the prior art, the guardrail is convenient to assemble and disassemble and convenient to move, the length of the guardrail can be reduced or increased at will according to the needs, and the danger caused by the pedestrian randomly crossing the guardrail is reduced.
Drawings
Fig. 1 is a schematic view of a road guard rail formed by connecting guard rail units according to embodiment 1.
Fig. 2 is a schematic structural view of embodiment 1 of the road guard unit of the present invention (guard rail in retracted state).
Fig. 3 is a schematic diagram of the structure of the tie bars of embodiment 1 of the road guard rail unit of fig. 2.
Fig. 4 is a schematic view of the base structure of embodiment 1 of the road guard unit of fig. 2 (with the roller retracted into the base groove).
Fig. 5 is a schematic view of the base structure of embodiment 1 of the road guard unit of fig. 2 (rollers protrude from the base groove).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings and a preferred embodiment.
In the following description, the orientation of the road guard rail unit shown in fig. 2 is taken as a reference, and the upper part of the road guard rail unit shown in the figure is "up", and the lower part is "down" on the contrary; the left side of the road guard rail unit shown in the figure is "left side", and vice versa.
Embodiment 1
Referring to fig. 1 to 5, a road guard rail unit 100 includes a rail 1 and a base 2, the base 2 being used to fix and support the rail 1. The railing 1 comprises a first vertical rod 11, a second vertical rod 11a, a first cross rod 12, a second cross rod 13, a third cross rod 17, a fourth cross rod 18, a connecting rod 14 and a fixing pin 15. The railing 1 is provided with an upper layer of cross bars and a lower layer of cross bars.
The bottom ends of the first vertical rod 11 and the second vertical rod 11a are fixed on the base 2, and in this embodiment, a welding mode is adopted for fixing. The left side of first montant 11 is equipped with connecting piece 3, and connecting piece 3 transversely sets up flutedly, and first screw thread through-hole has been vertically seted up, and first screw thread through-hole runs through the recess from top to bottom. The right side of the first vertical rod 11 is provided with an upper semicircular cross rod connecting part and a lower semicircular cross rod connecting part, and a first cross rod connecting hole is formed in the cross rod connecting part. The right side of second montant 11a is equipped with connecting seat 4, and connecting seat 4 is equipped with the arch with recess looks adaptation, has seted up the second screw thread through-hole in the arch from top to bottom, and the screw thread of second screw thread through-hole is the same with the screw thread of first screw thread through-hole. The left side of the second vertical rod 11a is provided with an upper semicircular cross rod connecting part and a lower semicircular cross rod connecting part, and a second cross rod connecting hole is formed in the cross rod connecting part.
The left end of the first cross rod 12 is provided with a first connecting through hole, the first connecting through hole corresponds to the first cross rod connecting hole, and the first cross rod 12 is hinged with the first vertical rod 11 through a pin roll which is arranged in the two holes in a transmission mode. The middle part of the first cross bar 12 is provided with a first connecting rod positioning hole which is a through hole. The right end of the first cross bar 12 is provided with a connecting rod mounting hole and a second cross bar hinge hole. The first cross bar 12 is provided with a first groove extending along the length direction, the first groove is rectangular, the opening of the groove faces upwards, and the bottom of the groove is provided with a threaded through hole.
The third cross bar 17 is in a flat strip shape, the upper end of the third cross bar is provided with a continuous tip, two side surfaces of the third cross bar are provided with sliding blocks which are matched with the width of the first groove, and the third cross bar 17 is slidably arranged in the first groove. The threaded through holes at the bottoms of the grooves are internally provided with screws, the upper ends of the screws are abutted against the bottom ends of the third cross bars 17, and two threaded through holes at the bottoms of the grooves can be arranged in order to prevent the third cross bars from tilting during adjustment.
The right end of the second cross rod 13 is provided with a second connecting through hole, the second connecting through hole corresponds to the second cross rod connecting hole, and the second cross rod 13 is hinged with the second vertical rod 11a through a pin roll which is arranged in the two holes in a transmission mode. The middle part of the second cross bar 13 is provided with a second connecting rod positioning hole which is a through hole. The left end of the second cross bar 13 is provided with a first cross bar hinge hole. The second cross bar 13 is provided with a second groove extending along the length direction, the opening of the groove faces upwards, and the bottom of the groove is provided with a threaded through hole.
The first cross bar 12 is hinged with the second cross bar 13 by a pin passing through the first cross bar hinge hole and the second cross bar hinge hole.
The fourth cross bar 18 is in a flat strip shape, the upper end of the fourth cross bar is provided with a continuous tip, two side surfaces of the fourth cross bar are provided with sliding blocks matched with the width of the second groove, and the fourth cross bar 18 is slidably arranged in the second groove. The threaded through holes at the bottoms of the grooves are internally provided with screws, the upper ends of the screws are abutted against the bottom ends of the fourth cross bars 18, and two threaded through holes at the bottoms of the grooves can be arranged in order to prevent the fourth cross bars from being inclined when being adjusted.
Referring to fig. 3, the connecting rod 14 is a long rod shaped like a Chinese character 'men' and has a fixed end at one end and a movable end at the other end, wherein the fixed end is provided with a cylindrical connecting portion 141, and the connecting portion 141 is adapted to the connecting rod mounting hole of the first cross rod 12. The movable end of the connecting rod is provided with a positioning part 142, the positioning part 142 is matched with the positioning hole of the first connecting rod of the first cross rod 12 and the positioning hole of the second connecting rod of the second cross rod 13, and the positioning part 142 is provided with a limiting hole 1421.
When the connecting rod 14 is installed, the cylindrical connecting portion 141 is inserted into the connecting rod installation hole of the first cross rod 12 and can slide and freely rotate in the through hole, and in order to prevent the sliding out, a stop block 1411 is arranged at the tail end of the connecting portion, and the stop block 1411 can be welded on the connecting rod 141 after the connecting rod is installed. When the connecting rod is used, the connecting rod is stretched in the direction away from the first cross rod, the positioning part 142 of the movable end of the connecting rod is opposite to the second connecting rod positioning hole of the second cross rod by rotating the connecting rod, the positioning part of the movable end of the connecting rod is pushed to penetrate through the second connecting rod positioning hole of the second cross rod, and a fixing pin is inserted into the limiting hole to fix the connecting rod on the second cross rod. When the guardrail needs to be moved, the connecting rod is stretched in the direction away from the first cross rod, the positioning part of the movable end of the connecting rod is opposite to the first connecting rod positioning hole of the first cross rod by rotating the connecting rod, the positioning part of the movable end of the connecting rod is pushed to penetrate through the first connecting rod positioning hole of the first cross rod, and a fixing pin is inserted into the limiting hole of the connecting rod to fix the connecting rod on the first cross rod.
Referring to fig. 4 and 5, a groove 21 is formed in the base 2, an opening of the groove 21 faces downward, and a first roller shaft 22, a second roller shaft 23, a first stopper 25, a second stopper 26 and a roller 24 are disposed in the groove 21. The first roller shaft 22 is vertically arranged, the upper end of the first roller shaft is fixed on the upper side surface of the groove 21, and the lower end of the first roller shaft is hinged with one end of the second roller shaft 23 through a pin shaft. The other end of the second roller shaft 23 is provided with an opening and a roller mounting hole, and the roller mounting hole penetrates through the opening. The roller 24 is rotatably disposed in the opening through a rotation shaft. The first limiting block 25 is disposed below the left side of the first roller shaft 22, parallel to the first roller shaft 22, and has a right side surface flush with the left side surface of the first roller shaft 22. The upper side of the groove 21 is vertically provided with a sliding groove which is communicated with the inner cavity of the groove 21, a blocking part is arranged in the sliding groove, the upper end of the second limiting block 26 is arranged in the sliding groove in a vertical sliding way, and the left side face of the second limiting block is flush with the right side face of the first roller shaft 22. The top of the second limiting block 26 is provided with a blocking part, and the second limiting block is positioned when the blocking part abuts against the blocking part to prevent the second limiting block from sliding out. When the second roller shaft rotates to a vertical state, the left side surface of the second roller shaft abuts against the right side surface of the first limiting block, the right side surface of the second roller shaft abuts against the left side surface of the second limiting block, and the second roller shaft is positioned due to clamping between the first limiting block and the second limiting block.
Embodiment 2
Referring to fig. 1, a guard rail is formed by connecting guard rail units 100 and 200 according to embodiment 1. The protrusions on the connection seat 4 of the barrier unit 100 are inserted into the grooves 31 of the connection member 3 of the barrier unit 200 so that the first screw through hole is aligned with the second screw through hole, and the connection screw 32 is screwed into the first screw through hole and the second screw through hole to fixedly connect the two barrier units together through screw connection.
Parts of the above description not specifically described are either prior art or may be implemented by prior art.
Claims (5)
1. The utility model provides a road rail guard unit, includes railing and base, and the base is used for fixed support railing, its characterized in that: the railing comprises a first vertical rod, a second vertical rod, a first cross rod, a second cross rod, a connecting rod and a fixing pin; the bottom ends of the first vertical rod and the second vertical rod are fixed on the base; one end of the first cross rod is hinged with the first vertical rod, the other end of the first cross rod is hinged with one end of the second cross rod, and the other end of the second cross rod is hinged with the second vertical rod; the connecting rod is provided with a movable end and a fixed end, the fixed end is movably connected to the first cross rod, the movable end can rotate around the fixed end, and when the movable end rotates to the second cross rod, the movable end is fixed on the second cross rod through a fixing pin; when the movable end rotates to the first cross rod, the movable end is fixed on the first cross rod through a fixing pin; the first vertical rod is provided with a first connecting piece, the second vertical rod is provided with a second connecting piece, and the first connecting piece can be movably matched and connected with the second connecting piece;
the railing further comprises a third cross rod and a fourth cross rod; the third cross rod and the fourth cross rod are respectively provided with a tip end, the third cross rod is movably arranged in the first cross rod, the fourth cross rod is movably arranged in the second cross rod, and the tips of the third cross rod and the fourth cross rod are respectively upward; the first transverse rod and the second transverse rod are internally provided with a first groove and a second groove which extend along the length direction of the transverse rod, and the openings of the grooves are upward; the third cross bar and the fourth cross bar are respectively arranged in the first groove and the second groove in a sliding way; the bottoms of the first groove and the second groove are respectively provided with a threaded through hole, an adjusting screw is arranged in the threaded through holes, and the adjusting screw is screwed in and screwed out to drive the third cross rod and the fourth cross rod to lift in the first groove and the second groove;
the base is internally provided with a groove, the opening of the groove faces downwards, a first roller shaft, a second roller shaft and rollers are arranged in the groove, the first roller shaft is fixed on the groove, the lower end of the first roller shaft is hinged with the second roller shaft, and the rollers are fixed at one end of the second roller shaft which is not connected with the first roller shaft; the second roller shaft rotates downwards to drive the roller to extend out of the groove, and the second roller shaft rotates upwards to drive the roller to retract into the groove; a first limiting block and a second limiting block are arranged in the groove; the first limiting block is arranged below the left side of the first roller shaft, the second limiting block is arranged on the right side of the first roller shaft in a vertically sliding mode, the left side face of the second roller shaft abuts against the first limiting block when the second roller shaft rotates to a vertical state, and the right side face of the second roller shaft abuts against the second limiting block.
2. The roadway guard rail unit of claim 1, wherein: the first connecting piece is internally provided with a first threaded through hole and a connecting groove, and the first threaded through hole penetrates through the connecting groove; the second connecting piece is provided with a connecting seat matched with the connecting groove, a second threaded through hole is formed in the connecting seat, the second threaded through hole is identical to the first threaded through hole, and the second threaded through hole corresponds to the first threaded through hole when the connecting seat is inserted into the connecting groove.
3. The roadway guard rail unit of claim 1, wherein: the fixed end of the connecting rod is provided with a connecting part, the first cross rod is provided with a through hole matched with the connecting part, and the connecting part is arranged in the through hole and can slide in the through hole; the movable end of connecting rod is equipped with location portion, and first horizontal pole and second horizontal pole all have seted up the location through-hole with location portion looks adaptation, and the end of location portion is equipped with spacing hole.
4. The roadway guard rail unit of claim 1, wherein: the railing is provided with two layers of cross bars.
5. A guard rail comprising a plurality of guard rail units according to any one of claims 1 to 4 connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764708.2A CN108755518B (en) | 2018-07-12 | 2018-07-12 | Road guard rail unit and guard rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764708.2A CN108755518B (en) | 2018-07-12 | 2018-07-12 | Road guard rail unit and guard rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108755518A CN108755518A (en) | 2018-11-06 |
| CN108755518B true CN108755518B (en) | 2024-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764708.2A Active CN108755518B (en) | 2018-07-12 | 2018-07-12 | Road guard rail unit and guard rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108755518B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881556B (en) * | 2019-03-01 | 2020-11-03 | 中信国安建工集团有限公司 | Highway tunnel and construction operation method |
| CN109881555B (en) * | 2019-03-01 | 2021-03-12 | 中信国安建工集团有限公司 | Municipal road and construction operation method |
| CN109868829B (en) * | 2019-03-01 | 2021-05-07 | 中信国安建工集团有限公司 | High-side slope soil and stone protection structure and construction method |
| CN112982243B (en) * | 2019-12-02 | 2022-03-18 | 怀化市恒裕实业有限公司 | Movable guardrail |
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| CN207296597U (en) * | 2017-06-03 | 2018-05-01 | 呼广健 | A kind of easy-to-dismount building purse seine |
| CN206941485U (en) * | 2017-06-19 | 2018-01-30 | 江苏宏达交通工程有限公司 | A kind of highway isolated gate |
| CN207160739U (en) * | 2017-08-04 | 2018-03-30 | 严小亮 | A kind of municipal works fence |
| CN107675938A (en) * | 2017-09-07 | 2018-02-09 | 魏超军 | A kind of construction foldable mobile guard rail |
| CN207347978U (en) * | 2017-09-13 | 2018-05-11 | 杨健民 | A kind of road safety isolation strip being easily installed |
| CN207392886U (en) * | 2017-09-20 | 2018-05-22 | 广州市第四装修有限公司 | A kind of campus fence |
| CN207228780U (en) * | 2017-09-27 | 2018-04-13 | 周迎奎 | A kind of safe hydraulic engineering safe fence |
| CN208733537U (en) * | 2018-07-12 | 2019-04-12 | 南京工业职业技术学院 | A kind of road guard-rail unit and protective fence |
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| CN108755518A (en) | 2018-11-06 |
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