CN112982216A - Construction safety indicating device suitable for traffic engineering uses - Google Patents
Construction safety indicating device suitable for traffic engineering uses Download PDFInfo
- Publication number
- CN112982216A CN112982216A CN202110128510.7A CN202110128510A CN112982216A CN 112982216 A CN112982216 A CN 112982216A CN 202110128510 A CN202110128510 A CN 202110128510A CN 112982216 A CN112982216 A CN 112982216A
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- CN
- China
- Prior art keywords
- safety
- base
- traffic engineering
- lamp
- device suitable
- 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.)
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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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
- E01F9/617—Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/02—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions free-standing; portable, e.g. for guarding open manholes ; Portable signs or signals specially adapted for fitting to portable barriers
- E01F13/028—Flexible barrier members, e.g. cords; Means for rendering same conspicuous; Adapted supports, e.g. with storage reel
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
Abstract
The invention belongs to the technical field of construction warning tools, and particularly relates to a construction safety indicating device suitable for traffic engineering. Through the transparent basic shell of safety indication who sets up, accessible internally mounted's annular lamp area is sent out light and is provided the warning and use with the light source, fine compensatied the not enough problem of traffic engineering night warning effect, annular lamp area adopts the annular design simultaneously, realize providing 360 warning illumination uses under night environment, the recess through setting up can realize gathering the light that annular lamp area sent, and the cooperation reflecting block carries out the reflection of light, the realization is utilized the great ization of light source, the luminance of the light source of improvement, better warning night construction environment annex's pedestrian.
Description
Technical Field
The invention belongs to the technical field of construction warning tools, and particularly relates to a construction safety indicating device suitable for traffic engineering.
Background
Traffic engineering is the basic of traffic engineering development, is a younger subject derived from road engineering, and integrates several aspects related to traffic, such as people, vehicles, roads, environment, energy and the like, into a unified body of road traffic to research so as to seek traffic system planning, construction and management schemes with the maximum road traffic capacity, the minimum traffic accidents, the fastest running speed, the least transportation cost, the minimum environmental impact and the minimum energy consumption, thereby achieving the purposes of safety, rapidness, economy, convenience, comfort, energy conservation and low public hazard.
When carrying out traffic engineering construction, can steady safety for the work progress, can install the construction safety sign of many around the construction environment for warning that past vehicle and pedestrian notice dodge, however, current construction safety sign function is comparatively single, especially can reduce by a wide margin at night warning effect, can bring great potential safety hazard problem for traffic engineering construction.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a construction safety indicating device suitable for traffic engineering, and solves the problems that the existing construction safety indicating board has single function, especially the warning effect at night is greatly reduced, and great potential safety hazards are brought to traffic engineering construction.
In order to achieve the purpose, the invention provides the following technical scheme: a construction safety indicating device suitable for traffic engineering comprises a safety indicating base, wherein arc-shaped holes are uniformly formed in the surface of the safety indicating base, limiting bolts are mounted at the tops of the arc-shaped holes, a connecting lamp holder is fixedly mounted at the top of the safety indicating base, a first mounting base is mounted at the top of the connecting lamp holder, a safety indicating transparent base shell is mounted at the top of the first mounting base, mounting clamping grooves are uniformly formed in the surface of the safety indicating transparent base shell, limiting clamping interfaces are formed in the tops of the mounting clamping grooves, mounting connectors are mounted inside the mounting clamping grooves, a second mounting base is mounted at the top of the safety indicating transparent base shell, a construction lamp is mounted at the top of the second mounting base, limiting bolts are mounted on the surface of the second mounting base, an indicating lamp base shell is arranged inside the safety indicating transparent base shell, the utility model discloses a safety indication lamp, including the indicator lamp base shell, the inside mounting of indicator lamp base shell has the battery storage, annular lamp area is installed to one side of battery storage, the surface of the indicator lamp base shell of annular lamp area one side is equipped with the recess, the inner wall of the transparent base shell of safety indication evenly is equipped with the reflecting block.
Preferably, the surface of connecting the lamp stand has evenly seted up the warning hole, the contained angle between the warning hole is 90, the internally mounted of connecting the lamp stand has the led lamp.
Preferably, the safety indication area is installed to one side of erection joint, the erection joint depression angle is the T font, structure size and position correspond the matching completely between erection joint and the mounting groove, the surface of safety indication area evenly is equipped with the lug, and the tangent plane of lug is equilateral triangle.
Preferably, a first limiting spring is installed at the top of the indicator light base shell, the indicator light base shell is connected with the second installation base through the first limiting spring, a second limiting spring is installed at the bottom of the indicator light base shell, and the indicator light base shell is connected with the first installation base through the second limiting spring.
Preferably, the section of the groove is a concave paraboloidal mirror.
Preferably, the spherical storage chamber is arranged in the bottom end of the indicator light base shell, and the movable block is arranged in the spherical storage chamber.
Preferably, the movable block is a revolving body with a section arc line identical to the spherical arc of the spherical storage chamber, and a balance weight cavity is formed in the top end inside the movable block.
Preferably, the distance between the reflecting blocks is 1cm, and the section of the reflecting block is in an isosceles trapezoid shape.
Compared with the prior art, the invention has the beneficial effects that:
1. through the transparent basic shell of safety indication who sets up, accessible internally mounted's annular lamp area is sent out light and is provided the warning and use with the light source, fine compensatied the not enough problem of traffic engineering night warning effect, annular lamp area adopts the annular design simultaneously, realize providing 360 warning illumination uses under night environment, the recess through setting up can realize gathering the light that annular lamp area sent, and the cooperation reflecting block carries out the reflection of light, the realization is utilized the great ization of light source, the luminance of the light source of improvement, better warning night construction environment annex's pedestrian.
2. Through the installation draw-in groove that sets up, erection joint and safety indication area, the reflection of the inside luminescent light source's of the transparent basic shell of abundant utilization safety indication light and reflection piece to the light source accomplishes the conduction use to light through erection joint and safety indication area, the light that utilizes the annular lamp area to send transmits through the safety indication area, a safety is noticed night for the warning, through the connection lamp stand that sets up, the warning hole, led lamp and construction lamp, can realize using the warning on two high positions in bottom and top.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of a three-dimensional structure of the present invention;
FIG. 3 is a cross-sectional view of the three-dimensional structure of the base housing of the indicator light of the present invention;
FIG. 4 is a perspective view of the safety indicator strip of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 in accordance with the present invention;
fig. 6 is a partial enlarged view of the invention at B in fig. 2.
In the figure: 1 a safety indication base; 2, arc-shaped holes; 3, connecting a lamp holder; 4 a first mounting base; 5 a safety indicating transparent base shell; 6, installing a clamping groove; 7, limiting a card interface; 8, installing a joint; 9 a safety indicator strip; 10 a second mounting base; 11 a construction lamp; 12, a limit bolt; 13 an indicator light base housing; 14 a first limit spring; 15 a second limit spring; 16 storage batteries; 17 a ring-shaped light strip; 18 grooves; 19 spherical storage chambers; 20 a movable block; 21 a counterweight cavity; 22 a reflective block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: a construction safety indicating device suitable for traffic engineering comprises a safety indicating base 1, wherein arc-shaped holes 2 are uniformly formed in the surface of the safety indicating base 1, limiting bolts are installed at the tops of the arc-shaped holes 2, the safety indicating base 1 can be used for being fixed with the ground through the arranged limiting bolts and the arc-shaped holes 2, a connecting lamp holder 3 is fixedly installed at the top of the safety indicating base 1, a first mounting base 4 is installed at the top of the connecting lamp holder 3, a safety indicating transparent base shell 5 is installed at the top of the first mounting base 4, mounting clamping grooves 6 are uniformly formed in the surface of the safety indicating transparent base shell 5, limiting clamping interfaces 7 are formed in the tops of the mounting clamping grooves 6, mounting connectors 8 are installed inside the mounting clamping grooves 6, a second mounting base 10 is installed at the top of the safety indicating transparent base shell 5, and a construction lamp 11 is installed at the top of the second mounting base 10, the surface of the second mounting base 10 is provided with a limit bolt 12, an indicator lamp base shell 13 is arranged inside the safety indication transparent base shell 5, a storage battery 16 is arranged inside the indicator lamp base shell 13, a ring-shaped lamp strip 17 is arranged on one side of the storage battery 16, through the arranged safety indication transparent base shell 5, the internally arranged ring-shaped lamp strip 17 can emit light and provide light source for warning for use, the problem that the night warning effect of traffic engineering is not enough is well solved, meanwhile, the ring-shaped lamp strip 17 adopts a ring-shaped design, 360-degree warning illumination use under the night environment is realized, the surface of the indicator lamp base shell 13 on one side of the ring-shaped lamp strip 17 is provided with a groove 18, light emitted by the ring-shaped lamp strip 17 can be gathered through the arranged groove 18, light reflection is carried out by matching with a reflection block 22, the greater utilization of the light source is realized, and the brightness of, better warning the pedestrians of the construction environment accessories at night, and the inner wall of the safety indication transparent base shell 5 is uniformly provided with the reflection blocks 22.
Concretely, the warning hole has evenly been seted up on the surface of connecting lamp stand 3, and the contained angle between the warning hole is 90, and the internally mounted who connects lamp stand 3 has the led lamp, can be used to carry out the instruction of light to the lower position of connecting lamp stand 3 through the led lamp that sets up and use.
Specifically, a safety indicating belt 9 is arranged on one side of the mounting joint 8, the depression angle of the mounting joint 8 is T-shaped, the structural size and the position between the mounting joint 8 and the mounting clamping groove 6 are completely matched correspondingly, bumps are uniformly arranged on the surface of the safety indicating belt 9, the section of the convex block is in an equilateral triangle shape, and through the arranged installation clamping groove 6, the installation joint 8 and the safety indicating belt 9, the light of the luminous light source in the safety indication transparent base shell 5 and the reflection of the light source by the reflection block 22 can be fully utilized to complete the transmission and use of the light by the installation connector 8 and the safety indication belt 9, the light emitted by the annular lamp strip 17 is transmitted by the safety indication belt 9, the warning lamp holder is used for warning safety at night, and warning on the two height positions of the bottom and the top can be achieved through the connecting lamp holder 3, the warning hole, the LED lamp and the construction lamp 11.
Specifically, first limiting spring 14 is installed at the top of indicator lamp base shell 13, indicator lamp base shell 13 is connected with second mounting base 10 through first limiting spring 14, second limiting spring 15 is installed to the bottom of indicator lamp base shell 13, indicator lamp base shell 13 is connected with first mounting base 4 through second limiting spring 15, when first limiting spring 14 and the second limiting spring 15 that set up can be used to remove indicator lamp base shell 13, or play the buffering protection use to indicator lamp base shell 13 during the installation.
Specifically, the section of the groove 18 is a concave parabolic mirror, and the concave parabolic mirror can be used for condensing light emitted by the annular light strip 17 and matching with the reflection of the reflection block 22 on the light source to realize the function of uniform light emission and use of the safety indication transparent base shell 5.
Specifically, the spherical storage chamber 19 has been seted up to the inside of the base shell 13 bottom end of pilot lamp, and the inside of the spherical storage chamber 19 is equipped with the movable block 20, and the movable block 20 through setting up can be used to play the use effect of buffering energy-absorbing for the base shell 13 of pilot lamp is more stable.
Specifically, the movable block 20 is a revolving body with a section arc line identical to the spherical arc of the spherical storage chamber 19, a counterweight cavity 21 is formed at the top end inside the movable block 20, and the counterweight cavity 21 is used for achieving the purpose of using the bottom of the movable block 20 all the time downward.
Specifically, the distance between the reflection blocks 22 is 1cm, the section of the reflection block 22 is in an isosceles trapezoid shape, and the reflection block 22 can be used for reflecting light.
The working principle and the using process of the invention are as follows: after the safety indication transparent base shell is installed, the annular light belt 17 arranged inside the safety indication transparent base shell 5 can emit light and provide a light source for warning for use, the problem of insufficient night warning effect of traffic engineering is well solved, meanwhile, the annular light belt 17 adopts an annular design to provide 360-degree warning lighting for use in night environment, light emitted by the annular light belt 17 can be gathered through the arranged groove 18, the light reflection is carried out by matching with the reflection block 22, the greater utilization of the light source is realized, the brightness of the light source is improved, pedestrians in night construction environment accessories are better warned, the light of the light source in the safety indication transparent base shell 5 can be fully utilized, the reflection of the light source by the reflection block 22 through the installation connector 8 and the safety indication belt 9, the light is conducted and used, utilize the light that annular lamp area 17 sent to transmit through safety indicator belt 9 for the warning is paid attention to safety night, through the connection lamp stand 3, warning hole, led lamp and the construction lamp 11 that set up, can realize using the warning on two high positions in bottom and top.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. 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 (8)
1. The utility model provides a construction safety indicating device suitable for traffic engineering uses, includes safety indication base (1), its characterized in that: the safety indication lamp is characterized in that arc-shaped holes (2) are uniformly formed in the surface of the safety indication base (1), a limiting bolt is installed at the top of each arc-shaped hole (2), a connecting lamp holder (3) is fixedly installed at the top of the safety indication base (1), a first installation base (4) is installed at the top of the connecting lamp holder (3), a safety indication transparent base shell (5) is installed at the top of the first installation base (4), installation clamping grooves (6) are uniformly formed in the surface of the safety indication transparent base shell (5), limiting clamping interfaces (7) are formed in the top of the installation clamping grooves (6), installation connectors (8) are installed inside the installation clamping grooves (6), a second installation base (10) is installed at the top of the safety indication transparent base shell (5), a construction lamp (11) is installed at the top of the second installation base (10), and a limiting bolt (12) is installed on the surface of the second installation base (10), the inside of the transparent basic shell of safety indication (5) is equipped with basic shell of pilot lamp (13), the internally mounted of basic shell of pilot lamp (13) has battery (16), annular lamp area (17) are installed to one side of battery (16), the surface of the basic shell of pilot lamp (13) of annular lamp area (17) one side is equipped with recess (18), the inner wall of the transparent basic shell of safety indication (5) evenly is equipped with reflection block (22).
2. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: the warning holes are uniformly formed in the surface of the connecting lamp holder (3), the included angle between the warning holes is 90 degrees, and the LED lamps are arranged inside the connecting lamp holder (3).
3. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: safety indicator area (9) are installed to one side of erection joint (8), erection joint (8) depression angle is the T font, structure size and position correspond the matching completely between erection joint (8) and mounting groove (6), the surface of safety indicator area (9) evenly is equipped with the lug, and the tangent plane of lug is equilateral triangle.
4. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: first spacing spring (14) are installed at the top of pilot lamp base shell (13), pilot lamp base shell (13) are connected with second mounting base (10) through first spacing spring (14), second spacing spring (15) are installed to the bottom of pilot lamp base shell (13), pilot lamp base shell (13) are connected with first mounting base (4) through second spacing spring (15).
5. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: the section of the groove (18) is a concave paraboloid mirror.
6. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: the inside of pilot lamp base shell (13) bottom has seted up ball shape locker room (19), the inside of ball shape locker room (19) is equipped with movable block (20).
7. The construction safety indicating device suitable for traffic engineering according to claim 6, wherein: the movable block (20) is a revolving body with a section arc line identical to the spherical arc of the spherical storage chamber (19), and a balance weight cavity (21) is formed in the top end of the inside of the movable block (20).
8. The construction safety indicating device suitable for traffic engineering according to claim 1, wherein: the distance between the reflecting blocks (22) is 1cm, and the section of the reflecting blocks (22) is in an isosceles trapezoid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110128510.7A CN112982216A (en) | 2021-01-29 | 2021-01-29 | Construction safety indicating device suitable for traffic engineering uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110128510.7A CN112982216A (en) | 2021-01-29 | 2021-01-29 | Construction safety indicating device suitable for traffic engineering uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112982216A true CN112982216A (en) | 2021-06-18 |
Family
ID=76345890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110128510.7A Withdrawn CN112982216A (en) | 2021-01-29 | 2021-01-29 | Construction safety indicating device suitable for traffic engineering uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112982216A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0748813A (en) * | 1993-08-06 | 1995-02-21 | Tatsuno Co Ltd | Rope fence |
| US20090297288A1 (en) * | 2008-06-03 | 2009-12-03 | Dl Manufacturing | Restraint chain storage |
| CN204530530U (en) * | 2015-03-16 | 2015-08-05 | 陈敬 | A kind of solar alarming post |
| CN204608633U (en) * | 2015-04-29 | 2015-09-02 | 遵义师范学院 | A kind of road safety cone cylinder with luminous zone |
| US20160122956A1 (en) * | 2014-10-29 | 2016-05-05 | SafeTBots, LLC | Portable remote-controlled traffic and pedestrian control system |
| CN106968194A (en) * | 2017-05-03 | 2017-07-21 | 江苏师范大学 | A kind of adjustable illumination roadblock |
| CN206530146U (en) * | 2017-03-07 | 2017-09-29 | 任东辉 | A kind of municipal fence with alarm function |
| CN208088178U (en) * | 2018-04-12 | 2018-11-13 | 国网湖北省电力有限公司武汉供电公司 | A kind of night using type construction guard wire column |
| CN208517837U (en) * | 2018-06-08 | 2019-02-19 | 徐蓓 | A kind of night has the road and bridge safety device of alarm function |
| CN209179625U (en) * | 2018-11-16 | 2019-07-30 | 中化二建集团有限公司 | Safety warning fence |
| CN209854608U (en) * | 2019-03-08 | 2019-12-27 | 福州市志安消防工程有限公司 | Protective fence |
| CN210239332U (en) * | 2019-05-22 | 2020-04-03 | 四川嘉格照明工程有限公司 | Warning light on guardrail bar is prevented to foundation ditch |
| CN211900060U (en) * | 2020-04-09 | 2020-11-10 | 王晓刚 | Building construction protection rail |
| CN212316776U (en) * | 2019-12-21 | 2021-01-08 | 安徽拓盛建设工程有限公司 | Town road construction rail guard |
-
2021
- 2021-01-29 CN CN202110128510.7A patent/CN112982216A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0748813A (en) * | 1993-08-06 | 1995-02-21 | Tatsuno Co Ltd | Rope fence |
| US20090297288A1 (en) * | 2008-06-03 | 2009-12-03 | Dl Manufacturing | Restraint chain storage |
| US20160122956A1 (en) * | 2014-10-29 | 2016-05-05 | SafeTBots, LLC | Portable remote-controlled traffic and pedestrian control system |
| CN204530530U (en) * | 2015-03-16 | 2015-08-05 | 陈敬 | A kind of solar alarming post |
| CN204608633U (en) * | 2015-04-29 | 2015-09-02 | 遵义师范学院 | A kind of road safety cone cylinder with luminous zone |
| CN206530146U (en) * | 2017-03-07 | 2017-09-29 | 任东辉 | A kind of municipal fence with alarm function |
| CN106968194A (en) * | 2017-05-03 | 2017-07-21 | 江苏师范大学 | A kind of adjustable illumination roadblock |
| CN208088178U (en) * | 2018-04-12 | 2018-11-13 | 国网湖北省电力有限公司武汉供电公司 | A kind of night using type construction guard wire column |
| CN208517837U (en) * | 2018-06-08 | 2019-02-19 | 徐蓓 | A kind of night has the road and bridge safety device of alarm function |
| CN209179625U (en) * | 2018-11-16 | 2019-07-30 | 中化二建集团有限公司 | Safety warning fence |
| CN209854608U (en) * | 2019-03-08 | 2019-12-27 | 福州市志安消防工程有限公司 | Protective fence |
| CN210239332U (en) * | 2019-05-22 | 2020-04-03 | 四川嘉格照明工程有限公司 | Warning light on guardrail bar is prevented to foundation ditch |
| CN212316776U (en) * | 2019-12-21 | 2021-01-08 | 安徽拓盛建设工程有限公司 | Town road construction rail guard |
| CN211900060U (en) * | 2020-04-09 | 2020-11-10 | 王晓刚 | Building construction protection rail |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20210618 |