CN208777829U - A kind of safety guide rail that civil construction is good with warning performance - Google Patents
A kind of safety guide rail that civil construction is good with warning performance Download PDFInfo
- Publication number
- CN208777829U CN208777829U CN201820844531.2U CN201820844531U CN208777829U CN 208777829 U CN208777829 U CN 208777829U CN 201820844531 U CN201820844531 U CN 201820844531U CN 208777829 U CN208777829 U CN 208777829U
- Authority
- CN
- China
- Prior art keywords
- bolted
- wall
- support column
- guide rail
- civil construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The utility model belongs to civil construction equipment technical field, especially a kind of civil construction safety guide rail good with warning performance, it is poor for night warning effect, highly unadjustable problem, now propose following scheme, including firm banking, the first support column has been bolted at the top of the firm banking, the top exterior walls of first support column have been connected through a screw thread the first mounting post, the outer wall bottom of first support column has been connected through a screw thread fixed underpan, fastening nut has been connected through a screw thread at the top of the outer wall of first support column, support rod has been bolted at the top of first support column, field word support frame has been bolted at the top of the support rod.Solar panel, battery, MPPT controller is arranged in the utility model, solar energy is converted into electric energy by MPPT controller by solar panel, is stored in battery by conducting wire, and battery provides energy for whole device, save very much the energy, environmental protection and economy.
Description
Technical field
It is good with warning performance that the utility model relates to civil construction equipment technical fields more particularly to a kind of civil construction
Safety guide rail.
Background technique
Currently, architecture enclosing usually can all build protective net during civil construction, it is on the one hand to reinforce applying
Work safety avoids the landing of building material from injuring construction personnel, on the other hand can also prevent the diffusion of dust in work progress
Influence the hygienic conditions on periphery;Common construction guardrail is often that fixed reticular structure is spliced, when needs will building
When fencing up, since the fixation of splicing construction unit is unfavorable for the splicing of guardrail, also need on rugged ground by ground
It could splice after face is smooth, bring puzzlement to constructor, delay the time limit of construction;After the dismantling of these protective fences welding simultaneously
Original structure can be largely destroyed, cannot be reused, and due to the position of protection difference, the size of protective fence is also different
Sample;Although good protective action can be played by welding and make guardrail at the scene, this mode needs to put into a large amount of manpowers,
Very time-consuming, laborious, at night since visual effect is poor, protective net not intelligent warning device and illumination and warning device are difficult
Exempt from unnecessary accident occur someone will swarm into construction site.
Utility model content
The technical problem that safety guide rail night warning effect based on civil construction is poor, height is unadjustable, this reality
A kind of safety guide rail that civil construction warning performance is good is proposed with novel.
The utility model proposes a kind of civil construction good safety guide rail of warning performance, including firm banking, institute
It states and the first support column has been bolted at the top of firm banking, the top exterior walls of first support column are connected through a screw thread
There is the first mounting post, the outer wall bottom of first support column has been connected through a screw thread fixed underpan, first support column
It has been connected through a screw thread fastening nut at the top of outer wall, support rod has been bolted at the top of first support column, it is described
Field word support frame is bolted at the top of support rod, there is solar energy at the top of the field word support frame by screw connection
MPPT controller, the two sides outer wall of first mounting post has been bolted in solar panel, the outer wall side of the support rod
Installation card slot is offered, and the inner wall for installing card slot is connected with riser, cross bar has been bolted in the both ends of the riser, institute
The outer wall for stating cross bar is welded with protective net, and one end of the cross bar slidably connects the second mounting post by riser, and described second
The inside of mounting post has been connected through a screw thread the second support column, and splashproof machine has been bolted in the side of first support column
Controller has been bolted in the inner wall top of cabinet, the waterproof cabinet.
Preferably, the shape of the firm banking is stage body shape, and four table tops offer ground hole, the ground hole
Inside expansion bolt is connected with by nut, and firm banking and ground are stably connected with by expansion bolt.
Preferably, the two sides outer wall of the installation card slot offers the fixed hole equidistantly distributed, and the fixation is logical
The inside in hole has been connected through a screw thread fastening bolt, and ring-shaped rubber pad is bonded at the top of fixed hole, and the two of the riser
Side offers rectangle card slot, and rectangle card slot is stably connected with the first mounting post by fastening bolt, described to install the interior of card slot
Spring seat has been bolted in wall bottom, and the outer wall of the spring seat is socketed with damping spring, and at the top of damping spring
The spring seat of socket is slidably connected with cross bar.
Preferably, the material of the protective net is irony, and antirust treatment is passed through on surface, and the outer wall of the protective net passes through
Clamp connection has warning sign, and human body infrared inductor, the warning sign has been bolted at the top of one side of the warning sign
Four side of one side be welded with circular lamp band, the outer wall of the cross bar is bonded with the reflective strip equidistantly distributed, and the outer wall of cross bar
The warning lamp equidistantly distributed is bolted.
Preferably, alarm device has been bolted at the top of second support column.
Preferably, the outer wall two sides of the waterproof cabinet offer the heat release hole equidistantly distributed.
Preferably, battery has been bolted in the inner wall bottom of the waterproof cabinet.
Preferably, the side outer wall of the waterproof cabinet is hinged with cabinet door, and cabinet has been bolted at the top of cabinet door
Door handle, the top side of the cabinet door offers first through hole, and cabinet door lock is plugged with inside first through hole.
Preferably, the controller is connect with human body infrared inductor by signal wire, the controller and circular lamp band,
Alarm device, warning lamp pass through switch connection.
Preferably, the solar panel is connect with MPPT controller by conducting wire, and MPPT controller and battery
It is connected by conducting wire, battery is connect with controller by conducting wire.
Having the beneficial effect that in the utility model
1, the utility model proposes a kind of civil construction good safety guide rail of warning performance, be provided with warning lamp,
Alarm device, controller, human body infrared inductor, warning sign, circular lamp band protective net fix the present apparatus in civil construction
At designated position, night, controller control warning lamp is opened, while around human body infrared inductor real-time monitoring protective device,
When personnel close to when, information is transferred to controller by signal wire, controller controls alarm device and issues light and sound, reminds
Personnel, while outer wall when night in warning sign is equipped with circular lamp band, can reinforce visual range, protective net avoid personnel into
Enter construction site, multiple alarming device can be good at prompt person and take care.
2, the utility model proposes a kind of civil construction good safety guide rail of warning performance, the first support of setting
Column, firm banking, fastening nut, the first mounting post, installation card slot, fastening bolt, riser, are fixed on ground for firm banking
On, the first mounting post can be rotated on the first support column by screw thread, the height of the first mounting post be adjusted, by tightening fastening spiral shell
The first mounting post is fixed on female and fastening chassis, and riser is plugged on inside installation card slot, perpendicular by the way that fastening bolt to be fixed on
It inside the rectangle card slot of plate, is highly convenient for dismantling and replace, while the height of adjustable mounting post, be suitble to rugged road
Face, it is applied widely.
3, the utility model proposes a kind of civil construction good safety guide rail of warning performance, solar battery is set
Solar energy is converted into electric energy by MPPT controller, is stored up by conducting wire by plate, battery, MPPT controller, solar panel
There are in battery, battery provides energy for whole device, very the saving energy, environmental protection and economy.
4, the utility model proposes a kind of civil construction good safety guide rail of warning performance, spring seat is set,
Damping spring, by being equipped with spring seat in installation card trench bottom, the outer wall of spring seat is socketed with buffer spring, avoids
In assembling, cross bar and installation card slot collide the electronic product on protective net are caused damage, at the same construction site shake compared with
Greatly, cushioning effect is played to protective net.
Detailed description of the invention
Fig. 1 be the utility model proposes the front view structure of the good safety guide rail of civil construction warning performance a kind of show
It is intended to;
Fig. 2 be the utility model proposes a kind of civil construction warn the mounting post side of the good safety guide rail of performance to tie
Structure schematic diagram;
Fig. 3 be the utility model proposes a kind of civil construction warn the mounting post of the good safety guide rail of performance to overlook
Structural schematic diagram;
Fig. 4 be the utility model proposes a kind of good safety guide rail of civil construction warning performance waterproof cabinet just
Depending on structural schematic diagram;
Fig. 5 be the utility model proposes a kind of good safety guide rail of civil construction warning performance field word support frame
Structural schematic diagram.
In figure: 1 firm banking, 2 fixed underpans, 4 first support columns, 5 support rods, 6 first mounting posts, 7 installation card slots, 8
Riser, 9 fastening nuts, 10 field word support frames, 11 solar panels, 12 MPPT controllers, 13 fixed holes, 14 cross bars, 15
Protective net, 16 reflective strips, 17 warning lamps, 18 alarm devices, 19 second mounting posts, 20 human body infrared inductors, 21 circular lamp bands, 22
Warning sign, 23 spring seats, 24 damping springs, 25 rectangle card slots, 26 ring-shaped rubber pads, 27 fastening bolts, 28 batteries, 29 are prevented
Water dispenser cabinet, 30 controllers, 31 ground holes, 32 expansion bolts, 33 cabinet doors, 34 cabinet door locks, 35 heat release holes, 36 cabinet door handles, 37
Two support columns.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-5, a kind of civil construction safety guide rail good with warning performance, including firm banking 1, firm banking
The first support column 4 has been bolted in 1 top, and the top exterior walls of the first support column 4 have been connected through a screw thread the first installation
Column 6, the outer wall bottom of the first support column 4 have been connected through a screw thread fixed underpan 2, have passed through spiral shell at the top of the outer wall of the first support column 4
Line is connected with fastening nut 9, and support rod 5 has been bolted in the top of the first support column 4, and the top of support rod 5 passes through spiral shell
It tethers and is connected to field word support frame 10, there is solar panel 11 at the top of field word support frame 10 by screw connection, support rod 5
MPPT controller 12 has been bolted in outer wall side, and the two sides outer wall of the first mounting post 6 offers installation card slot 7, and pacifies
The inner wall of slot 7 of being loaded is connected with riser 8, and cross bar 14 has been bolted in the both ends of riser 8, and the outer wall of cross bar 14 is welded with anti-
One end of protective net 15, cross bar 14 slidably connects the second mounting post 19 by riser 8, and the inside of the second mounting post 19 passes through screw thread
It is connected with the second support column 37, waterproof cabinet 29, the inner wall of waterproof cabinet 29 has been bolted in the side of the first support column 4
Controller 30 has been bolted in top.
In the utility model, the shape of firm banking 1 is stage body shape, and four table tops offer ground hole 31, ground connection
The inside in hole 31 is connected with expansion bolt 32 by nut, and firm banking 1 is stably connected with ground by expansion bolt 32, is pacified
The two sides outer wall of slot 7 of being loaded offers the fixed hole 13 equidistantly distributed, and the inside of fixed hole 13 is connected through a screw thread
There is fastening bolt 27, and the top of fixed hole 13 is bonded with ring-shaped rubber pad 26, can be avoided and the application of fastening bolt 27 is answered
Power is excessive to cause stripped thread, and the two sides of riser 8 offer rectangle card slot 25, and rectangle card slot 25 and the first mounting post 6 pass through fastening
Bolt 27 is stably connected with, and spring seat 23, the outer wall set of spring seat 23 has been bolted in the inner wall bottom of installation card slot 7
The spring seat 23 for being connected to damping spring 24, and being socketed at the top of damping spring 24 is slidably connected with cross bar 14, the material of protective net 15
Matter is irony, and antirust treatment is passed through on surface, and the outer wall of protective net 15 has a warning sign 22 by clamp connection, the one of warning sign 22
Human body infrared inductor 20 has been bolted at the top of side, a certain range of personnel of protective device can be incuded, warning sign 22
Four sides are welded with circular lamp band 21 on one side, can reinforce visual range, the outer wall of cross bar 14 be bonded with equidistantly distribute it is reflective
Item 16 can remind driving personnel in light-illuminatings such as vehicles, and the outer wall of cross bar 14 has been bolted equidistant point
Alarm device 18 has been bolted in the warning lamp 17 of cloth, the top of the second support column 37, and the outer wall two sides of waterproof cabinet 29 are opened
Equipped with the heat release hole 35 equidistantly distributed, the thermal energy that 28 exoergic of battery generates is distributed, the service life of device, waterproof are improved
Battery 28 has been bolted in the inner wall bottom of cabinet 29, and the side outer wall of waterproof cabinet 29 is hinged with cabinet door 33, and cabinet
Cabinet door handle 36 has been bolted in the top of door 33, and the top side of cabinet door 33 offers first through hole, and first through hole
Inside is plugged with cabinet door lock 34, and controller 30 is connect with human body infrared inductor 20 by signal wire, controller 30 and circular lamp
By switch connection, solar panel 11 is connect with MPPT controller 12 by conducting wire for band 21, alarm device 18, warning lamp 17,
And MPPT controller 12 is connect with battery 28 by conducting wire, battery 28 is connect with controller by conducting wire, solar battery
Solar energy is converted into electric energy by MPPT controller 12 by plate 11, is stored in battery 28 by conducting wire, and battery 28 is whole
A device provides energy, very the saving energy, environmental protection and economy.
In use, solar energy is converted into electric energy by MPPT controller 12 by solar panel 11 in civil construction,
It is stored in battery 28 by conducting wire, battery 28 provides energy for whole device, very the saving energy, by firm banking 1
It is fixed on the ground by expansion bolt 31, the first mounting post 6 can be rotated on the first support column 5 by screw thread, be adjusted the
The height of one mounting post 5, it is by tightening fastening nut 9 and fastening chassis 2 that first mounting post 6 is fixed, riser 13 is plugged on
It installs inside card slot 7, by the way that fastening bolt 27 to be fixed on inside the rectangle card slot 25 that 13 both sides of riser open up, is highly convenient for tearing open
Replacement, while the height of adjustable first mounting post 6 and the second mounting post 19 are unloaded and repaired, rugged road surface, night are suitble to
The controller 30 of model DATA-7311 controls warning lamp 17 and opens when late, while 20 real-time monitoring of human body infrared inductor is anti-
Around protection unit, when personnel close to when, information is transferred to controller 30 by signal wire, controller 30 controls alarm device 18 and sends out
Outer wall when light and sound out, prompting personnel, while night in warning sign 22 is equipped with circular lamp band 21, can reinforce visual
Distance, protective net 15 avoid personnel from entering construction site.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (10)
1. a kind of civil construction safety guide rail good with warning performance, including firm banking (1), which is characterized in that described solid
Determine to be bolted at the top of pedestal (1) the first support column (4), the top exterior walls of first support column (4) pass through spiral shell
Line is connected with the first mounting post (6), and the outer wall bottom of first support column (4) has been connected through a screw thread fixed underpan (2), institute
It states and has been connected through a screw thread fastening nut (9) at the top of the outer wall of the first support column (4), the top of first support column (4) is logical
It crosses and has been bolted support rod (5), field word support frame (10), the field has been bolted at the top of the support rod (5)
The top of word support frame (10) has solar panel (11) by screw connection, and the outer wall side of the support rod (5) passes through
It has been bolted MPPT controller (12), the two sides outer wall of first mounting post (6) offers installation card slot (7), and installs
The inner wall of card slot (7) is connected with riser (8), and cross bar (14), the cross bar has been bolted in the both ends of the riser (8)
(14) outer wall is welded with protective net (15), and one end of the cross bar (14) slidably connects the second mounting post by riser (8)
(19), the inside of second mounting post (19) has been connected through a screw thread the second support column (37), first support column (4)
Side has been bolted waterproof cabinet (29), and controller has been bolted at the top of the inner wall of the waterproof cabinet (29)
(30).
2. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
The shape of firm banking (1) is stage body shape, and (1) four table top of firm banking offers ground hole (31), the ground hole
(31) inside is connected with expansion bolt (32) by nut, and firm banking (1) and ground are stablized by expansion bolt (32)
Connection.
3. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
The two sides outer wall of installation card slot (7) offers the fixed hole (13) equidistantly distributed, the inside of the fixed hole (13)
It has been connected through a screw thread fastening bolt (27), and has been bonded with ring-shaped rubber pad (26), the riser at the top of fixed hole (13)
(8) two sides offer rectangle card slot (25), and rectangle card slot (25) and the first mounting post (6) are stablized by fastening bolt (27)
The inner wall bottom of connection, installation card slot (7) has been bolted spring seat (23), outside the spring seat (23)
Wall is socketed with damping spring (24), and the spring seat (23) being socketed at the top of damping spring (24) is slidably connected with cross bar (14).
4. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
The material of protective net (15) is irony, and antirust treatment is passed through on surface, and the outer wall of the protective net (15) has by clamp connection
Human body infrared inductor (20), the warning has been bolted in one side top of warning sign (22), the warning sign (22)
Four side of one side of board (22) is welded with circular lamp band (21), and the outer wall of the cross bar (14) is bonded with the reflective strip equidistantly distributed
(16), and the warning lamp (17) equidistantly distributed is bolted in the outer wall of cross bar (14).
5. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
Alarm device (18) have been bolted at the top of second support column (37).
6. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
The outer wall two sides of waterproof cabinet (29) offer the heat release hole (35) equidistantly distributed.
7. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
Battery (28) have been bolted in the inner wall bottom of waterproof cabinet (29).
8. a kind of civil construction according to claim 1 safety guide rail good with warning performance, which is characterized in that described
The side outer wall of waterproof cabinet (29) is hinged with cabinet door (33), and cabinet door handle has been bolted at the top of cabinet door (33)
(36), the top side of the cabinet door (33) offers first through hole, and cabinet door lock (34) are plugged with inside first through hole.
9. a kind of safety guide rail that civil construction is good with warning performance according to claim 4 or 7, which is characterized in that
The controller (30) is connect with human body infrared inductor (20) by signal wire, the controller (30) and circular lamp band
(21), alarm device (18), warning lamp (17) pass through switch connection.
10. a kind of civil construction according to claim 1 or claim 7 safety guide rail good with warning performance, which is characterized in that
The solar panel (11) is connect with MPPT controller (12) by conducting wire, and MPPT controller (12) and battery (28)
It is connected by conducting wire, battery (28) is connect with controller by conducting wire.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820844531.2U CN208777829U (en) | 2018-06-01 | 2018-06-01 | A kind of safety guide rail that civil construction is good with warning performance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820844531.2U CN208777829U (en) | 2018-06-01 | 2018-06-01 | A kind of safety guide rail that civil construction is good with warning performance |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208777829U true CN208777829U (en) | 2019-04-23 |
Family
ID=66148823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820844531.2U Active CN208777829U (en) | 2018-06-01 | 2018-06-01 | A kind of safety guide rail that civil construction is good with warning performance |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208777829U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108824954A (en) * | 2018-06-01 | 2018-11-16 | 张磊 | A kind of safety guide rail that civil construction is good with warning performance |
CN111236674A (en) * | 2020-03-09 | 2020-06-05 | 枣庄学院 | Civil engineering construction safety warning rail guard |
CN114673109A (en) * | 2022-03-11 | 2022-06-28 | 江苏顺联工程建设有限公司 | Rail guard is kept apart to town road's middle part |
-
2018
- 2018-06-01 CN CN201820844531.2U patent/CN208777829U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108824954A (en) * | 2018-06-01 | 2018-11-16 | 张磊 | A kind of safety guide rail that civil construction is good with warning performance |
CN111236674A (en) * | 2020-03-09 | 2020-06-05 | 枣庄学院 | Civil engineering construction safety warning rail guard |
CN114673109A (en) * | 2022-03-11 | 2022-06-28 | 江苏顺联工程建设有限公司 | Rail guard is kept apart to town road's middle part |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108824954A (en) | A kind of safety guide rail that civil construction is good with warning performance | |
CN208777829U (en) | A kind of safety guide rail that civil construction is good with warning performance | |
CN205297014U (en) | Rail for electric power construction | |
CN204983903U (en) | Telescopic warning safety barrier of construction | |
CN210688010U (en) | Display screen mounting structure of wisdom street lamp | |
CN208455549U (en) | A kind of protective fence that urban transportation stability is good | |
CN211776436U (en) | Electric power operation and maintenance management safety protection rail | |
CN208396444U (en) | Roll-over protective structure is used safely in a kind of civil construction | |
CN109137789A (en) | A kind of roadblock of frontier inspection anti-terrorism | |
CN206411874U (en) | A kind of solar traffic light | |
CN205402211U (en) | Transformer safety protection area | |
CN108399772A (en) | A kind of road traffic lights | |
CN208235370U (en) | A kind of intelligent transportation caution device | |
CN202689682U (en) | Safe protective screening | |
CN209874649U (en) | Building construction protective fence | |
CN208072202U (en) | A kind of bridge protective fence of good warning effect | |
CN105545084A (en) | Foldable guardrail applied in electric power maintenance | |
CN203580945U (en) | Fixing device of locomotive ground rod | |
CN207552982U (en) | A kind of road construction protective fence | |
CN210064989U (en) | Tower crane protection device | |
CN220133708U (en) | Fence for construction site | |
CN217712035U (en) | Highway construction is with portable rail guard | |
CN206726636U (en) | A kind of road caution board of convenient environment friendly | |
CN208967455U (en) | A kind of detachable steel panel | |
CN214943102U (en) | Warning railing for dangerous area |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |