CN113322851A - Warning device is used in bridge engineering construction - Google Patents
Warning device is used in bridge engineering construction Download PDFInfo
- Publication number
- CN113322851A CN113322851A CN202110588267.7A CN202110588267A CN113322851A CN 113322851 A CN113322851 A CN 113322851A CN 202110588267 A CN202110588267 A CN 202110588267A CN 113322851 A CN113322851 A CN 113322851A
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- support
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- driving
- engineering construction
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000005291 magnetic effect Effects 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
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- 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
- E01F9/608—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 for guiding, warning or controlling traffic, e.g. delineator posts or milestones
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
- E01F9/617—Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
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- 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
- E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
- E01F9/65—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection with rotatable, swingable or adjustable signs or signals
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a warning device for bridge engineering construction, which comprises a box body, a connecting seat and an exchange assembly, wherein the exchange assembly is arranged in the box body, the connecting seat is arranged on the box body, the exchange assembly comprises a first support, a second support, a third support, an adjusting driver, a multi-surface roller, a warning board, an electromagnetic plate, a driving rod, a first motor, an exchange connecting piece and a sliding block, and the first support, the second support and the third support are sequentially arranged on the side wall of the box body from bottom to top. The invention relates to the technical field of bridge construction, and particularly provides a warning device for bridge engineering construction, which can change different warning signs or sentences according to conditions, adsorb warning boards with different warning signs or sentences on a multi-surface roller by using a magnetic attraction technology, and transfer the warning boards by using an electromagnetic plate.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a warning device for bridge engineering construction.
Background
Safety work is always a problem which is regarded as important by all industries, particularly, safety measures are very important in a construction site, the occurrence of a construction warning device greatly reduces the dangerous situation caused by intrusion of irrelevant personnel into a construction site, but different warning signs or sentences need to be selected according to the situation in the construction process, and the conventional warning device does not have a structure which is convenient for replacing the warning signs or sentences.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention provides a warning device for bridge engineering construction, which can change different warning signs or sentences according to the situation, adsorb warning boards with different warning signs or sentences on a multi-surface roller by using a magnetic attraction technology, and simultaneously realize the transfer of the warning boards by using an electromagnetic plate.
The technical scheme adopted by the invention is as follows: the invention relates to a warning device for bridge engineering construction, which comprises a box body, a connecting seat and an exchange component, wherein the exchange component is arranged in the box body, the connecting seat is arranged on the box body, the exchange component comprises a first support seat, a second support seat, a third support seat, an adjusting driver, a multi-surface roller, a warning board, an electromagnetic plate, a driving rod, a first motor, an exchange connecting piece and a sliding block, the first support seat, the second support seat and the third support seat are sequentially arranged on the side wall of the box body from bottom to top, the adjusting driver is arranged on the first support seat, the multi-surface roller is rotatably arranged in the box body and connected with the adjusting driver, a plurality of groups of magnetic suction blocks are arranged on each group of roller surfaces of the multi-surface roller, the warning board is provided with a plurality of groups, each group of warning boards are respectively sucked on one group of magnetic suction blocks, the first motor is arranged on the second support seat, the driving rod is arranged on an output shaft of the first motor, the middle part of the exchange connecting piece is hinged on the driving rod, the slider rotates and locates on the support three, change connecting piece one end and be equipped with the spout, the slider slides and locates in the spout, the electromagnetism board is located and is changed the connecting piece other end, be equipped with on the box lateral wall and pass through the window, the electromagnetism board upset back can be removed to passing through in the window.
Further, the adjusting driver comprises a second motor, a special-shaped driving disk, a fan-shaped limiting piece, a connecting rod and a driving sliding column, the second motor is arranged on the first support, the fan-shaped limiting piece is arranged on an output shaft of the second motor, the connecting rod is arranged on the fan-shaped limiting piece, the driving sliding column is arranged on the connecting rod, the special-shaped driving disk is arranged on the multi-surface roller, a shallow concave limiting groove and a deep concave driving groove are formed in the special-shaped driving disk, the shallow concave limiting groove and the deep concave driving groove are arranged at intervals, the fan-shaped limiting piece is arranged in the shallow concave limiting groove in a sliding mode, the driving sliding column is arranged in the deep concave driving groove in a sliding mode, the fan-shaped limiting piece and the driving sliding column are driven by the second motor to intermittently slide into the shallow concave limiting groove and the deep concave driving groove, when the driving sliding column slides into the deep concave driving groove, the fan-shaped limiting piece is separated from the shallow concave limiting groove, and the driving sliding column drives the driving disk to rotate when sliding in the deep concave driving special-shaped groove, when the fan-shaped limiting parts slide in the shallow concave limiting grooves, the limitation on the special-shaped driving disc is realized, the rotation of the special-shaped driving disc is avoided, and the number of the shallow concave limiting grooves and the number of the deep concave driving grooves are equal to the number of the roll surfaces of the multi-surface roll.
Further, a reinforcing connecting assembly is arranged in the connecting seat.
Further, consolidate coupling assembling and include that motor cabinet, motor three, threaded rod, V type push piece, connecting plate, push spring and reinforcement connection tooth, the motor cabinet is located in the connecting seat, motor three is located in the motor cabinet, the output of motor three is located to the threaded rod, the articulated both sides of locating the motor cabinet of connecting plate symmetry, consolidate the connection tooth and locate the connecting plate bottom, V type push piece connects on locating the threaded rod through the screw hole cover, V type push piece bottom contact is located on the connecting plate, push the spring and locate on the connecting plate on locating the connecting seat diapire, when laying, utilize the threaded rod to rotate and drive V type push piece and move down and push the connecting plate and make the compression of pushing spring, drive when the connecting plate lower hem and consolidate the connection tooth and pass the connecting seat diapire and insert ground, improve warning device's stability.
Furthermore, the LED light bands are arranged on the peripheral edges of the transparent window, so that the warning board can be conveniently warned and illuminated.
Furthermore, a limiting rod is arranged in the connecting seat, and the V-shaped pushing piece is sleeved on the limiting rod in a sliding mode.
Furthermore, the plurality of groups of warning boards are warning boards with different warning signs or sentences.
Further, the warning board is a ferromagnetic board.
Furthermore, the magnetic suction block is an electromagnet.
The invention with the structure has the following beneficial effects: different warning signs or sentences can be changed according to the condition in the scheme, the warning boards with different warning signs or sentences are adsorbed on the multi-face roller by utilizing the magnetic attraction technology to be stored, the electromagnetic plate is driven by utilizing the change connecting piece to realize the transfer of the warning boards during the replacement, and the warning boards are driven by utilizing the electromagnetic plate to move to the transparent window for warning.
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 schematic view of the overall structure of a warning device for bridge engineering construction according to the present invention;
FIG. 2 is a side view of a warning device for bridge engineering construction according to the present invention;
FIG. 3 is a schematic structural diagram of an adjusting driver of the warning device for bridge engineering construction according to the present invention;
fig. 4 is a schematic structural view of a reinforcing and connecting assembly of the warning device for bridge engineering construction.
Wherein, 1, the box, 2, the connecting seat, 3, change the subassembly, 4, support one, 5, support two, 6, support three, 7, adjust the driver, 8, the multiaspect roller, 9, the warning sign, 10, the electromagnetic plate, 11, the actuating lever, 12, change connecting piece, 13, the slider, 14, the spout, 15, pass through the window, 16, the special-shaped driving-disc, 17, fan-shaped locating part, 18, the connecting rod, 19, the drive traveller, 20, shallow concave spacing groove, 21, deep concave drive groove, 22, the motor cabinet, 23, motor three, 24, the threaded rod, 25, V type pushes away the piece, 26, the connecting plate, 27, push away the spring, 28, consolidate the engaging tooth, 29, the gag lever post, 30, the LED light band.
Detailed description of the inventiontechnical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, the warning device for bridge engineering construction of the present invention comprises a box body 1, a connecting seat 2 and a replacing component 3, wherein the replacing component 3 is arranged in the box body 1, the connecting seat 2 is arranged on the box body 1, the replacing component 3 comprises a first support seat 4, a second support seat 5, a third support seat 6, an adjusting driver 7, a multi-surface roller 8, a warning board 9, an electromagnetic plate 10, a driving rod 11, a first motor (not shown), a replacing connecting piece 12 and a sliding block 13, wherein the first support seat 4, the second support seat 5 and the third support seat 6 are sequentially arranged on the side wall of the box body 1 from bottom to top, the adjusting driver 7 is arranged on the first support seat 4, the multi-surface roller 8 is rotatably arranged in the box body 1 and is connected with the adjusting driver 7, each group of roller surfaces of the multi-surface roller 8 is provided with a magnetic absorption block (not shown in the figure), the warning board 9 is provided with a plurality of groups, the utility model discloses a change the electromagnetism board 10, including the support two 5, the drive rod 11 is located on the output shaft of motor one, change the articulated drive rod 11 of locating in the middle part of connecting piece 12, slider 13 rotates and locates on support three 6, change 12 one ends of connecting piece and be equipped with spout 14, slider 13 slides and locates in the spout 14, electromagnetism board 10 locates the other end of changing connecting piece 12, be equipped with on the 1 lateral wall of box and pass through window 15, electromagnetism board 10 upset back is portable to passing through in the window 15.
The adjusting driver 7 comprises a second motor (not shown in the figure), a special-shaped driving disk 16, a fan-shaped limiting part 17, a connecting rod 18 and a driving sliding column 19, the second motor is arranged on the first support 4, the fan-shaped limiting part 17 is arranged on an output shaft of the second motor, the connecting rod 18 is arranged on the fan-shaped limiting part 17, the driving sliding column 19 is arranged on the connecting rod 18, the special-shaped driving disk 16 is arranged on the multi-surface roller 8, a shallow concave limiting groove 20 and a deep concave driving groove 21 are arranged on the special-shaped driving disk 16, the shallow concave limiting groove 20 and the deep concave driving groove 21 are arranged at intervals, the fan-shaped limiting part 17 is slidably arranged in the shallow concave limiting groove 20, and the driving sliding column 19 is slidably arranged in the deep concave driving groove 21; a reinforcing connecting assembly is arranged in the connecting seat 2; the reinforcing connecting assembly comprises a motor base 22, a motor III 23, a threaded rod 24, a V-shaped pushing piece 25, a connecting plate 26, a pushing spring 27 and reinforcing connecting teeth 28, the motor base 22 is arranged in the connecting seat 2, the motor III 23 is arranged in the motor base 22, the threaded rod 24 is arranged at the output end of the motor III 23, the connecting plates 26 are symmetrically hinged to two sides of the motor base 22, the reinforcing connecting teeth 28 are arranged at the bottom of the connecting plate 26, the V-shaped pushing piece 25 is sleeved on the threaded rod 24 through a threaded hole, the bottom of the V-shaped pushing piece 25 is in contact with the connecting plate 26, and the pushing spring 27 is arranged on the bottom wall of the connecting seat 2 and on the connecting plate 26; a limiting rod 29 is arranged in the connecting seat 2, and the V-shaped pushing piece 25 is sleeved on the limiting rod 29 in a sliding manner; the LED light bands 30 are arranged on the peripheral edges of the transparent window 15; the warning boards 9 are provided with different warning signs or sentences; the warning board 9 is a ferromagnetic board; the magnetic attraction block is an electromagnet.
When the warning device is used, each group of warning boards 9 are respectively attracted to a group of magnetic blocks on the roller surface of the multi-surface roller 8, after the warning device is placed, the starting motor III 23 drives the threaded rod 24 to rotate to drive the V-shaped pushing piece 25 to move downwards to push the connecting plate 26 to compress the pushing spring 27, when the connecting plate 26 swings downwards, the reinforcing connecting teeth 28 are driven to penetrate through the bottom wall of the connecting seat 2 to be inserted into the ground, the stability of the warning device is improved, then the starting motor II drives the sector-shaped limiting piece 17 and the driving sliding column 19 to rotate and intermittently slide into the shallow concave limiting groove 20 and the deep concave driving groove 21, when the driving sliding column 19 slides into the deep concave driving groove 21, the sector-shaped limiting piece 17 is separated from the shallow concave limiting groove 20, the driving sliding column 19 drives the special-shaped driving disc 16 to rotate when sliding in the deep concave driving groove 21, so that a group of warning boards 9 to be used move right above the multi-surface roller 8, then the starting motor drives the driving rod 11 to rotate to drive the connecting piece 12 to swing and move to be close to the roller surface of the multi-surface roller 8, at this moment, the electromagnetic plate 10 is electrified to generate magnetic attraction force, the magnetic attraction block below the warning board 9 is closed when the electromagnetic plate 10 contacts the warning board 9, and the warning board 9 is adsorbed by the electromagnetic plate 10 and is displayed in the window 15 along with the swinging of the electromagnetic plate 10.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a warning device is used in bridge engineering construction which characterized in that: the device comprises a box body, a connecting seat and an exchanging component, wherein the exchanging component is arranged in the box body, the connecting seat is arranged on the box body, the exchanging component comprises a first support, a second support, a third support, an adjusting driver, a multi-surface roller, a warning board, an electromagnetic plate, a driving rod, a first motor, an exchanging connecting piece and a sliding block, the first support, the second support and the third support are sequentially arranged on the side wall of the box body from bottom to top, the adjusting driver is arranged on the first support, the multi-surface roller is rotatably arranged in the box body and connected with the adjusting driver, each group of roller surfaces of the multi-surface roller is provided with a magnetic suction block, the warning board is provided with a plurality of groups, each group of warning boards is respectively sucked on one group of magnetic suction blocks, the first motor is arranged on the second support, the driving rod is arranged on an output shaft of the first motor, the middle part of the exchanging connecting piece is hinged on the driving rod, the sliding block is rotatably arranged on the third support, change connecting piece one end and be equipped with the spout, the slider slides and locates in the spout, the electromagnetic plate is located and is changed the connecting piece other end, be equipped with on the box lateral wall and pass through the window, the electromagnetic plate upset back can be removed to passing through in the window.
2. The warning device for bridge engineering construction according to claim 1, wherein: the adjusting driver comprises a second motor, a special-shaped driving disc, a fan-shaped limiting part, a connecting rod and a driving sliding column, the second motor is arranged on the first support, the fan-shaped limiting part is arranged on an output shaft of the second motor, the connecting rod is arranged on the fan-shaped limiting part, the driving sliding column is arranged on the connecting rod, the special-shaped driving disc is arranged on the multi-surface roller, a shallow concave limiting groove and a deep concave driving groove are formed in the special-shaped driving disc, the shallow concave limiting groove and the deep concave driving groove are arranged at intervals, the fan-shaped limiting part is arranged in the shallow concave limiting groove in a sliding mode, the driving sliding column is arranged in the deep concave driving groove in a sliding mode, and the number of the shallow concave limiting groove and the number of the deep concave driving groove are equal to the number of the roller surfaces of the multi-surface roller.
3. The warning device for bridge engineering construction according to claim 1, wherein: and a reinforcing connecting assembly is arranged in the connecting seat.
4. The warning device for bridge engineering construction according to claim 3, wherein: consolidate coupling assembling and include that motor cabinet, motor three, threaded rod, V type push piece, connecting plate, push spring and reinforcement connection tooth, the motor cabinet is located in the connecting seat, motor three is located in the motor cabinet, the output of motor three is located to the threaded rod, the articulated both sides of locating the motor cabinet of connecting plate symmetry, it locates the connecting plate bottom to consolidate the connection tooth, V type push piece connects on locating the threaded rod through the screw hole cover, V type push piece bottom contact is located on the connecting plate, push spring locate on the connecting seat diapire and locate on the connecting plate.
5. The warning device for bridge engineering construction according to claim 1, wherein: and LED light bands are arranged on the peripheral edges of the transparent window.
6. The warning device for bridge engineering construction according to claim 4, wherein: a limiting rod is arranged in the connecting seat, and the V-shaped pushing piece is slidably sleeved on the limiting rod.
7. The warning device for bridge engineering construction according to claim 1, wherein: the warning boards are provided with different warning signs or sentences.
8. The warning device for bridge engineering construction according to claim 7, wherein: the warning board is a ferromagnetic board.
9. The warning device for bridge engineering construction according to claim 1, wherein: the magnetic attraction block is an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588267.7A CN113322851A (en) | 2021-05-28 | 2021-05-28 | Warning device is used in bridge engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588267.7A CN113322851A (en) | 2021-05-28 | 2021-05-28 | Warning device is used in bridge engineering construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113322851A true CN113322851A (en) | 2021-08-31 |
Family
ID=77421838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110588267.7A Pending CN113322851A (en) | 2021-05-28 | 2021-05-28 | Warning device is used in bridge engineering construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113322851A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5806221A (en) * | 1997-04-01 | 1998-09-15 | Vander Woude; Loren L. | Drive for a multi-sided display sign |
| CN207597294U (en) * | 2017-08-18 | 2018-07-10 | 杨黎明 | A kind of road and bridge construction safety alarm device |
| CN212200143U (en) * | 2020-03-17 | 2020-12-22 | 福建永东南建设集团有限公司 | Warning device for construction |
| CN212906923U (en) * | 2020-07-18 | 2021-04-06 | 王先宣 | Warning sign is used in public road bridge roof beam construction |
| CN213061766U (en) * | 2020-05-19 | 2021-04-27 | 内蒙古帝鸿路桥有限责任公司 | Sign detachable highway construction warning device |
-
2021
- 2021-05-28 CN CN202110588267.7A patent/CN113322851A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5806221A (en) * | 1997-04-01 | 1998-09-15 | Vander Woude; Loren L. | Drive for a multi-sided display sign |
| CN207597294U (en) * | 2017-08-18 | 2018-07-10 | 杨黎明 | A kind of road and bridge construction safety alarm device |
| CN212200143U (en) * | 2020-03-17 | 2020-12-22 | 福建永东南建设集团有限公司 | Warning device for construction |
| CN213061766U (en) * | 2020-05-19 | 2021-04-27 | 内蒙古帝鸿路桥有限责任公司 | Sign detachable highway construction warning device |
| CN212906923U (en) * | 2020-07-18 | 2021-04-06 | 王先宣 | Warning sign is used in public road bridge roof beam construction |
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Application publication date: 20210831 |