CN111042655A - Urban building safety protection equipment - Google Patents
Urban building safety protection equipment Download PDFInfo
- Publication number
- CN111042655A CN111042655A CN202010037390.5A CN202010037390A CN111042655A CN 111042655 A CN111042655 A CN 111042655A CN 202010037390 A CN202010037390 A CN 202010037390A CN 111042655 A CN111042655 A CN 111042655A
- Authority
- CN
- China
- Prior art keywords
- pipe
- railing
- safety protection
- pressure water
- water pump
- 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.)
- Pending
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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
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
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- 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
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1447—Details of connections between rails and posts
- E04H17/1452—Details of connections between rails and posts the ends of the rails are fixed on the lateral sides of the posts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses urban building safety protection equipment, and particularly relates to the technical field of urban building safety protection. When non-work related personnel want to overlook that protective equipment overturns the railing, along with infrared inductive switch senses the human body, because when people got into infrared inductive switch response scope, infrared inductive switch's pyroelectric infrared sensor has itself detects the change of human infrared spectrum, the automatic switch-on battery, people do not leave the response scope, will continue to switch on the battery, make control miniature high pressure water pump start, miniature high pressure water pump utilizes the suction pipe with the water pumping of retaining intracavity water, again along the horizontal pipe of drain pipe drainage, water upwards spouts from the nozzle that runs through the railing at last, can spray the personnel that will overturn the railing like this, solved present city building safety protective equipment and generally just played the effect of stopping, be difficult to carry out the problem of material warning non-work related personnel.
Description
Technical Field
The invention relates to the technical field of urban building safety protection, in particular to urban building safety protection equipment.
Background
The building is a general name of buildings and structures, is an artificial environment created by people by using mastered material technical means and applying certain scientific laws, wind and water concepts and aesthetic rules to meet the needs of social life, mainly adopts a wood structure building, mainly adopts a masonry structure in western traditional buildings, mainly adopts reinforced concrete in modern buildings, and needs safety protection equipment in the process of urban building. The existing urban building safety protection equipment generally only plays a role of blocking when the existing urban building safety protection equipment plays a role of protecting non-working related personnel from entering a building construction site, and the existing urban building safety protection equipment is difficult to substantially warn the non-working related personnel, so that the protection effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides urban building safety protection equipment, and solves the problems that the existing urban building safety protection equipment only plays a role in blocking and is difficult to warn non-working related personnel substantially.
The technical scheme adopted by the invention for solving the technical problems is as follows: the urban building safety protection equipment comprises stand columns, breast boards, connecting boards and railings, wherein the stand columns are two in number, the two stand columns are distributed in a bilateral symmetry mode, the breast boards are fixed on the lower sides between the stand columns, the railings are fixed on the upper sides between the stand columns, the connecting boards are connected between the breast boards and the railings, an infrared induction switch is mounted at one end, close to the railings, of each stand column, the infrared induction switch is located above the railings, water storage cavities are formed in the breast boards, mounting cavities are formed in the connecting boards, the left sides of the rear ends in the mounting cavities are connected with miniature high-pressure water pumps through screws, storage batteries are mounted on the right sides of the bottom ends in the mounting cavities, water pumping pipes are connected to the lower ends of the miniature high-pressure water pumps, the lower ends of the water pumping pipes penetrate through, the miniature high pressure water pump upper end has connect the drain pipe mutually, the drain pipe upper end runs through inside the railing, the drain pipe upper end has connect violently the pipe mutually, violently manage the upper end level and evenly connect five at least standpipe mutually, every the standpipe upper end homogeneous phase even has the nozzle, the nozzle upper end runs through the railing.
On the basis of the technical scheme, the miniature high-pressure water pump is communicated with the water pumping pipe, the miniature high-pressure water pump is communicated with the drain pipe, the drain pipe is communicated with the transverse pipe, the transverse pipe is communicated with the vertical pipe, and the vertical pipe is communicated with the nozzle.
On the basis of the technical scheme, the infrared induction switch and the high-pressure water pump are electrically connected with the storage battery, and the infrared induction switch is electrically connected with the high-pressure water pump through the storage battery.
On the basis of the technical scheme, a top baffle is fixed at the upper end of the upright column, one end, close to the railing, of the top baffle extends over the upright column, side baffles are fixed on the front side and the rear side of the lower end of each top baffle, the side baffles are fixedly connected with the upright column, and the infrared induction switch is located between the side baffles.
On the basis of the technical scheme, the upper end of the upright column is embedded with a collecting pipe in an L-shaped structure, the head end of the collecting pipe penetrates through the top baffle, and the tail end of the collecting pipe penetrates into the water storage cavity and is communicated with the water storage cavity.
On the basis of the technical scheme, the left side and the right side of the front end of the breast board are provided with the receiving grooves, each receiving groove is connected with the first rotating shaft in a rotating mode, the left side and the right side of the upper portion of the inner wall of the receiving groove are connected with the first rotating shaft, the solar panel is connected between the first rotating shafts, the solar panel is movably connected with the receiving grooves through the first rotating shafts, and the solar panel is electrically connected with the storage battery.
On the basis of above-mentioned technical scheme, the breast board front end just is located it is fixed with the kelly that is L style of calligraphy structure to receive the groove below, every solar panel rear end lower part left and right sides all bonds through the adhesive has the connecting block, it is connected with the second pivot to rotate between the connecting block, second pivot external fixation has the backup pad, the backup pad with solar panel passes through second pivot swing joint, the backup pad with the kelly contacts.
Compared with the prior art, the invention has the following beneficial effects: this kind of city building safety protection equipment, when the relevant personnel of non-work will be disregarded the protective equipment and turn over the railing, along with infrared inductive switch senses the human body, because when the people gets into infrared inductive switch induction range, the pyroelectric infrared sensor that infrared inductive switch itself has detects the change of human infrared spectrum, the battery is put through automatically, the people does not leave induction range, will continue to put through the battery, make control miniature high pressure water pump start, miniature high pressure water pump utilizes the drinking-water pipe with the water suction of retaining intracavity suction, again along the horizontal pipe of drain pipe drainage, water up spouts from the nozzle that runs through the railing at last, the personnel that can spray the railing of turning over like this, the relevant personnel of non-work can be wet because of the clothing like this, and give up and turn over the railing, thereby can play substantive warning effect.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of a solar panel according to the present invention;
FIG. 3 is an overall cross-sectional view of the present invention.
In the figure: the solar water heater comprises 1-upright posts, 2-baffle plates, 3-connecting plates, 4-handrails, 5-clamping rods, 6-folding grooves, 7-solar panels, 8-supporting plates, 9-top baffles, 10-collecting pipes, 11-nozzles, 12-side baffles, 13-infrared induction switches, 14-first rotating shafts, 15-connecting blocks, 16-second rotating shafts, 17-storage batteries, 18-miniature high-pressure water pumps, 19-water pumping pipes, 20-water draining pipes, 21-horizontal pipes, 22-vertical pipes, 23-water storage cavities and 24-installation cavities.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1-3, the present invention provides a technical solution: the urban building safety protection equipment comprises stand columns 1, breast boards 2, connecting boards 3 and railings 4, wherein the stand columns 1 are two in total, the two stand columns 1 are distributed in a bilateral symmetry manner, the breast boards 2 are fixed on the lower sides between the stand columns 1, the railings 4 are fixed on the upper sides between the stand columns 1, the connecting boards 3 are connected between the breast boards 2 and the railings 4, one end, close to the railings 4, of each stand column 1 is provided with an infrared induction switch 13, the infrared induction switches 13 are located above the railings 4, water storage cavities 23 are formed in the breast boards 2, mounting cavities 24 are formed in the connecting boards 3, the left sides of the rear ends in the mounting cavities 24 are connected with miniature high-pressure water pumps 18 through screws, storage batteries 17 are installed on the right sides of the bottom ends in the mounting cavities 24, the lower ends of the miniature high-pressure water pumps 18 are connected with water pumping, the lower end of the water pumping pipe 19 penetrates through the inside of the water storage cavity 23 and is communicated with the water storage cavity 23, the upper end of the miniature high-pressure water pump 18 is connected with a water discharge pipe 20, the upper end of the water discharge pipe 20 penetrates through the inside of the handrail 4, the upper end of the water discharge pipe 20 is connected with a horizontal pipe 21, the upper end of the horizontal pipe 21 is horizontally and uniformly connected with at least five vertical pipes 22, the upper end of each vertical pipe 22 is connected with a nozzle 11, the upper end of the nozzle 11 penetrates through the handrail 4, the miniature high-pressure water pump 18 is communicated with the water pumping pipe 19, the miniature high-pressure water pump 18 is communicated with the water discharge pipe 20, the water discharge pipe 20 is communicated with the horizontal pipe 21, the horizontal pipe 21 is communicated with the vertical pipe 22, the vertical pipe 22 is communicated with the nozzle 11, the infrared induction switch 13 and the high-pressure water pump 18 are electrically connected with the storage battery 17, and the, when non-working related personnel need to disregard the railing 4 of the guard equipment, the railing 2, the connecting plate 3 and the railing 4 turn over the railing 4, along with the sensing of the infrared sensing switches 13 on the left and right sides, because when a person enters the sensing range of the infrared sensing switches 13, the pyroelectric infrared sensor of the infrared sensing switches 13 detects the change of the infrared spectrum of the human body, the micro high-pressure water pump 18 automatically switches on the storage battery 17, the person does not leave the sensing range, the sensing range of the infrared sensing switches 13 is positioned between the infrared sensing switches 13 on the left and right sides, the micro high-pressure water pump 18 is continuously switched on the storage battery 17, so that the micro high-pressure water pump 18 and the storage battery 17 are controlled to be powered on and started, the water stored in the water storage cavity 23 is pumped in by the water pumping pipe 19 of the micro high-pressure water pump 18 and then is discharged into the transverse pipe 21 from the water discharging pipe 20 along the micro high-pressure water pump 18, and then the, therefore, people who want to turn over the railing 4 can be sprayed, so that non-working related people can give up turning over the railing 4 because clothes are wetted, and a substantial warning effect can be achieved.
In addition, when a person leaves the sensing range of the infrared sensing switch 13, the micro high-pressure water pump 18 automatically turns off the storage battery 17, so that the nozzle 11 does not spray out the waterline upwards any more.
According to the above embodiment, further, a top baffle 9 is fixed at the upper end of the upright post 1, one end of the top baffle 9 close to the rail 4 extends over the upright post 1, side baffles 12 are fixed at the front side and the rear side of the lower end of each top baffle 9, the side baffles 12 are fixedly connected with the upright post 1, the infrared inductive switch 13 is located between the side baffles 12, the top baffle 9 can play a role in blocking rainwater in rainy days, the infrared inductive switch 13 is prevented from being wetted by rainwater at the top, and the side baffles 12 can play a role in laterally blocking rainwater, so that the infrared inductive switch 13 is prevented from being wetted by rainwater blown from the sides.
According to the above embodiment, furthermore, the collecting pipe 10 in an L-shaped structure is embedded in the upper end of the upright post 1, the head end of the collecting pipe 10 penetrates through the top baffle 9, the tail end of the collecting pipe 10 penetrates into the water storage cavity 23 and is communicated with the water storage cavity 23, water can be poured into the collecting pipe 10 through the collecting pipe 10, so that the water can be input into the water storage cavity 23 along the collecting pipe 10 to be stored, and in addition, when raining, rainwater on the top baffle 9 can be collected into the water storage cavity 23 through the collecting pipe 10.
According to the above embodiment, it is further, 2 front end left and right sides of breast board all opened and receive groove 6, every the left and right sides on receiving 6 inner wall upper portions of groove all rotates and is connected with first pivot 14, solar panel 7 has been connect mutually between first pivot 14, solar panel 7 with receive groove 6 and pass through first pivot 14 swing joint, solar panel 7 with battery 17 electricity is connected, through solar panel 7, can store solar energy for the electric energy inside battery 17.
According to the above embodiment, further, the front end of the breast board 2 is fixed with the clamping rod 5 in an L-shaped structure below the receiving groove 6, the left and right sides of the lower part of the rear end of each solar panel 7 are bonded with the connecting blocks 15 through adhesives, a second rotating shaft 16 is rotatably connected between the connecting blocks 15, a supporting board 8 is fixed outside the second rotating shaft 16, the supporting board 8 is movably connected with the solar panel 7 through the second rotating shaft 16, the supporting board 8 is in contact with the clamping rod 5, the solar panel 7 is unfolded from the receiving groove 6, the solar panel 7 and the receiving groove 6 move through the first rotating shaft 14, the supporting board 8 is then unfolded downwards, the supporting board 8 and the solar panel 7 are movable through the second rotating shaft 16, and the lower part of the unfolded supporting board 8 can support against the upper end groove of the clamping rod 5, this allows the support plate 8 to be used to support the solar panel 7, thereby allowing the solar panel 7 to be deployed from the receiving slot 6.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an urban construction safety protection equipment, includes stand, breast board, connecting plate and railing, the stand is total two, two the stand is bilateral symmetry and distributes, the breast board is fixed downside between the stand, the railing is fixed upside between the stand, the connecting plate meets the breast board with between the railing, its characterized in that:
every the stand is close to infrared induction switch is all installed to the one end of railing, infrared induction switch is located the railing top, the inside retaining chamber that is equipped with of breast board, the inside installation cavity that is equipped with of connecting plate, there is miniature high pressure water pump on the left of the inside rear end of installation cavity through screwed connection, the battery is installed on the inside bottom right side of installation cavity, miniature high pressure water pump lower extreme has connect the drinking-water pipe, the drinking-water pipe lower extreme runs through retaining intracavity portion with the retaining chamber communicates with each other, miniature high pressure water pump upper end has connect the drain pipe mutually, the drain pipe upper end runs through inside the railing, the drain pipe upper end has connect violently the pipe mutually, violently manage the upper end level and evenly connect five at least standpipes mutually, every standpipe upper end homogeneous phase even has the nozzle, the nozzle upper end runs.
2. An urban building safety protection device according to claim 1, characterized in that: the miniature high-pressure water pump is communicated with the water pumping pipe, the miniature high-pressure water pump is communicated with the drain pipe, the drain pipe is communicated with the transverse pipe, the transverse pipe is communicated with the vertical pipe, and the vertical pipe is communicated with the nozzle.
3. An urban building safety protection device according to claim 1, characterized in that: the infrared inductive switch and the high-pressure water pump are electrically connected with the storage battery, and the infrared inductive switch is electrically connected with the high-pressure water pump through the storage battery.
4. An urban building safety protection device according to claim 1, characterized in that: the infrared induction switch is characterized in that a top baffle is fixed to the upper end of the stand column, one end, close to the railing, of the top baffle extends over the stand column, side baffles are fixed to the front side and the rear side of the lower end of each top baffle, the side baffles are fixedly connected with the stand column, and the infrared induction switch is located between the side baffles.
5. An urban building safety protection device according to claim 4, wherein: the collecting pipe that is L style of calligraphy structure is provided with in the embedding of stand upper end, the collecting pipe head end runs through top baffle, the collecting pipe tail end runs through to the retaining intracavity portion with the retaining chamber communicates with each other.
6. An urban building safety protection device according to claim 1, characterized in that: the fence board front end left and right sides all opens and has received the groove, every the left and right sides on income inslot inner wall upper portion all rotates and is connected with first pivot, it has solar panel to connect mutually between the first pivot, solar panel with it passes through to receive the groove first pivot swing joint, solar panel with the battery electricity is connected.
7. An urban building safety protection device according to claim 6, wherein: the breast board front end just is located it is fixed with the kelly that is L style of calligraphy structure to receive the groove below, every solar panel rear end lower part left and right sides all bonds through the adhesive has the connecting block, it is connected with the second pivot to rotate between the connecting block, second pivot external fixation has the backup pad, the backup pad with solar panel passes through second pivot swing joint, the backup pad with the kelly contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037390.5A CN111042655A (en) | 2020-01-14 | 2020-01-14 | Urban building safety protection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037390.5A CN111042655A (en) | 2020-01-14 | 2020-01-14 | Urban building safety protection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111042655A true CN111042655A (en) | 2020-04-21 |
Family
ID=70244510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010037390.5A Pending CN111042655A (en) | 2020-01-14 | 2020-01-14 | Urban building safety protection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111042655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706153A (en) * | 2020-06-30 | 2020-09-25 | 李丽萍 | Anti-climbing isolation railing |
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|---|---|---|---|---|
| CN201144537Y (en) * | 2007-12-28 | 2008-11-05 | 上海市杨浦区控江二村小学 | New fence |
| US20100288264A1 (en) * | 2009-05-13 | 2010-11-18 | Zheng Zhang | Modular solar fence system |
| CN202130430U (en) * | 2011-05-26 | 2012-02-01 | 武汉瑞丽森科技发展有限公司 | Automatic washing device for body of engineering vehicle |
| CN203034912U (en) * | 2013-02-01 | 2013-07-03 | 徐国柱 | Protective fence for garden |
| CN206233688U (en) * | 2016-11-23 | 2017-06-09 | 浙江迪野农业装备有限公司 | A kind of urban construction guardrail |
| CN107268491A (en) * | 2017-06-08 | 2017-10-20 | 泉州东行贸易有限公司 | A kind of capable of washing and illumination town road guard rail |
| CN208870499U (en) * | 2018-09-14 | 2019-05-17 | 济南金宇公路产业发展有限公司 | A kind of cushioning guard fence for construction of the highway |
| CN110593167A (en) * | 2019-09-24 | 2019-12-20 | 北京享云智汇科技有限公司 | Highway engineering is with easily maintaining guardrail of can splicing |
-
2020
- 2020-01-14 CN CN202010037390.5A patent/CN111042655A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144537Y (en) * | 2007-12-28 | 2008-11-05 | 上海市杨浦区控江二村小学 | New fence |
| US20100288264A1 (en) * | 2009-05-13 | 2010-11-18 | Zheng Zhang | Modular solar fence system |
| CN202130430U (en) * | 2011-05-26 | 2012-02-01 | 武汉瑞丽森科技发展有限公司 | Automatic washing device for body of engineering vehicle |
| CN203034912U (en) * | 2013-02-01 | 2013-07-03 | 徐国柱 | Protective fence for garden |
| CN206233688U (en) * | 2016-11-23 | 2017-06-09 | 浙江迪野农业装备有限公司 | A kind of urban construction guardrail |
| CN107268491A (en) * | 2017-06-08 | 2017-10-20 | 泉州东行贸易有限公司 | A kind of capable of washing and illumination town road guard rail |
| CN208870499U (en) * | 2018-09-14 | 2019-05-17 | 济南金宇公路产业发展有限公司 | A kind of cushioning guard fence for construction of the highway |
| CN110593167A (en) * | 2019-09-24 | 2019-12-20 | 北京享云智汇科技有限公司 | Highway engineering is with easily maintaining guardrail of can splicing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706153A (en) * | 2020-06-30 | 2020-09-25 | 李丽萍 | Anti-climbing isolation railing |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |