CN107974974B - Municipal works rail that can height-adjusting - Google Patents
Municipal works rail that can height-adjusting Download PDFInfo
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- CN107974974B CN107974974B CN201711301864.7A CN201711301864A CN107974974B CN 107974974 B CN107974974 B CN 107974974B CN 201711301864 A CN201711301864 A CN 201711301864A CN 107974974 B CN107974974 B CN 107974974B
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- rod
- horizontal connecting
- connecting rod
- supporting column
- telescopic supporting
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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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
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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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fencing (AREA)
Abstract
The invention discloses a municipal engineering fence capable of adjusting height, which comprises a first round base and a second round base, wherein the upper surfaces of the first round base and the second round base are respectively provided with a first telescopic supporting column and a second telescopic supporting column with upward telescopic ends, the lower ends of the inner side surfaces of the first telescopic supporting column and the second telescopic supporting column are connected through a first horizontal connecting rod, the upper ends of the inner side surfaces of the telescopic ends of the first telescopic supporting column and the second telescopic supporting column are connected through a second horizontal connecting rod, the upper surface of the first horizontal connecting rod is hinged with a first oscillating rod and a second oscillating rod, the first oscillating rod is positioned on the left side of the second oscillating rod, and the inner side surface of the first oscillating rod is hinged with a hollow mounting barrel. The invention has the advantages that the height of the fence can be conveniently adjusted at any time and any place according to the actual construction terrain so as to adapt to the actual terrain, and the invention is more convenient and practical.
Description
Technical Field
The invention relates to the field of municipal engineering fences, in particular to a municipal engineering fence with adjustable height.
Background
Along with the development of economy, the pace of urban construction is accelerated, and the quantity of municipal works is increased sharply. In urban municipal engineering construction, fences are usually needed to be isolated to fence construction sites, so that the construction safety is improved.
In the prior art, application No.: 201720031408.4, in the patent of name municipal works rail, its fence body is the plastics material, and first inserted bar, second inserted bar, third inserted bar are cast iron material, and the price is all very cheap, has lower manufacturing cost, can guarantee that municipal works rail subaerial steadiness is better.
In actual municipal construction, there may be a hollow area depending on the construction environment. However, the fence in the above patent cannot adjust the corresponding height according to the actual terrain during the use process, so that the use of the fence is limited. In order to improve the height of the fence, the height of the fence can be conveniently adjusted anytime and anywhere, and the height-adjustable municipal engineering fence is designed.
Disclosure of Invention
The invention aims to solve the problems and designs a municipal engineering fence with adjustable height.
The technical scheme of the invention is that the municipal engineering fence capable of adjusting the height comprises a first round base and a second round base, wherein the upper surfaces of the first round base and the second round base are respectively provided with a first telescopic supporting column and a second telescopic supporting column with upward telescopic ends, the lower ends of the inner side surfaces of the first telescopic supporting column and the second telescopic supporting column are connected through a first horizontal connecting rod, the upper ends of the inner side surfaces of the telescopic ends of the first telescopic supporting column and the second telescopic supporting column are connected through a second horizontal connecting rod, the upper surface of the first horizontal connecting rod is hinged with a first oscillating rod and a second oscillating rod, the first oscillating rod is positioned on the left side of the second oscillating rod, the inner side surface of the first oscillating rod is hinged with a hollow installation cylinder, and the right side surface of the hollow installation cylinder is provided with a first rectangular opening, the right side of the upper surface of the hollow installation barrel is processed with a first round opening, the upper surface of the hollow installation barrel is provided with a portal support frame above the first round opening, the upper surface of the portal support frame is processed with a second round opening, the second round opening is internally provided with a vertical sliding limiting rod extending into the hollow installation barrel from the first round opening, one end of the side surface of the vertical sliding limiting rod and positioned at the inner side of the portal support frame is fixed with a round limiting piece, the side surface of the vertical sliding limiting rod and positioned in front of the second round opening and the round limiting piece are sleeved with a compression spring, the inner side surface of the second swinging rod is hinged with a horizontal sliding limiting rod, the upper surface of the horizontal sliding limiting rod is processed with a plurality of limiting grooves matched with the vertical sliding limiting rod, the lower surface of the horizontal sliding limiting rod is provided with a rack, and the right side of the lower surface of the hollow installation barrel is processed with a, be equipped with in the bar opening and carry out lapped gear with rack lower surface, hollow installation barrel front surface is equipped with the handle of shaking that is connected with the gear, No. two horizontal connecting rod lower surface hinged joint have swinging arms No. three and swinging arms No. four, No. three swinging arms lower extreme and a swinging arms upper end carry out hinged joint, No. four swinging arms and No. two swinging arms upper ends carry out hinged joint.
And a pulling handle is arranged on the upper end surface of the vertical sliding limiting rod and above the door-shaped support frame.
A flexible support column, No. two flexible support columns, a horizontal connecting rod and No. two horizontal connecting rod front surfaces all are equipped with anti-light strip.
The first telescopic supporting column and the second telescopic supporting column are parallel to each other.
The first horizontal connecting rod and the second horizontal connecting rod are parallel to each other.
The municipal engineering fence with the adjustable height manufactured by the technical scheme of the invention can be conveniently adjusted in height at any time and any place according to the actual construction terrain so as to adapt to the actual terrain, and is more convenient and practical.
Drawings
FIG. 1 is a schematic structural view of a municipal works fence with adjustable height according to the invention;
FIG. 2 is a front view of an adjustable height municipal fence according to the invention;
FIG. 3 is a schematic height adjustment diagram of a municipal works fence with adjustable height according to the invention;
FIG. 4 is an enlarged partial view of a municipal work fence of the invention with adjustable height;
in the figure, 1, a first round base; 2. a second round base; 3. a first telescopic support column; 4. a second telescopic supporting column; 5. a first horizontal connecting rod; 6. a second horizontal connecting rod; 7. a first swing lever; 8. a second swing lever; 9. a cylinder body is arranged in a hollow way; 10. a first circular opening; 11. a door-shaped support frame; 12. a second circular opening; 13. a vertically sliding limiting rod; 14. a circular limiting sheet; 15. a compression spring; 16. a horizontally sliding limiting rod; 17. a limiting groove; 18. a rack; 19. a first strip-shaped opening; 20. a gear; 21. shaking the handle; 22. a third swing lever; 23. A fourth swing lever; 24. pulling the handle; 25. a reflective strip.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, and as shown in fig. 1-4, a municipal engineering fence capable of adjusting height comprises a first round base 1 and a second round base 2, wherein the upper surfaces of the first round base 1 and the second round base 2 are respectively provided with a first telescopic supporting column 3 and a second telescopic supporting column 4 with upward telescopic ends, the lower ends of the inner side surfaces of the first telescopic supporting column 3 and the second telescopic supporting column 4 are connected through a first horizontal connecting rod 5, the upper ends of the inner side surfaces of the telescopic ends of the first telescopic supporting column 3 and the second telescopic supporting column 4 are connected through a second horizontal connecting rod 6, the upper surface of the first horizontal connecting rod 5 is hinged with a first oscillating rod 7 and a second oscillating rod 8, the first oscillating rod 7 is positioned at the left side of the second oscillating rod 8, the inner side surface of the first oscillating rod 7 is hinged with a hollow mounting cylinder 9, the right side surface of the hollow installation barrel 9 is processed with a rectangular opening, the right side surface of the upper surface of the hollow installation barrel 9 is processed with a round opening 10, the upper surface of the hollow installation barrel 9 is provided with a door-shaped support frame 11 above the round opening 10, the upper surface of the door-shaped support frame 11 is processed with a round opening 12, the inside of the round opening 12 is provided with a vertical sliding limiting rod 13 extending into the hollow installation barrel 9 from the round opening 10, one end of the side surface of the vertical sliding limiting rod 13 and positioned at the inner side of the door-shaped support frame 11 is fixed with a round limiting piece 14, the side surface of the vertical sliding limiting rod 13 is sleeved with a compression spring 15 before the round opening 12 and the round limiting piece 14, the inner side surface of the second swinging rod 8 is hinged with a horizontal sliding limiting rod 16, the upper surface of the horizontal sliding limiting rod 16 is processed with a plurality of limiting grooves 17 matched with the vertical sliding limiting rod 13, the lower surface of the horizontal sliding limiting rod 16 is provided with a rack 18, the right side of the lower surface of the hollow mounting cylinder 9 is provided with a first strip-shaped opening 19, a gear 20 which is lapped with the lower surface of the rack 18 is arranged in the first strip-shaped opening 19, the front surface of the hollow mounting cylinder 9 is provided with a rocking handle 21 which is connected with the gear 20, the lower surface of the second horizontal connecting rod 6 is hinged with a third oscillating rod 22 and a fourth oscillating rod 23, the lower end of the third oscillating rod 22 is hinged with the upper end of the first oscillating rod 7, and the fourth oscillating rod 23 is hinged with the upper end of the second oscillating rod 8; a pulling handle 24 is arranged on the upper end surface of the vertical sliding limiting rod 13 and above the door-shaped support frame 11; the front surfaces of the first telescopic supporting column 3, the second telescopic supporting column 4, the first horizontal connecting rod 5 and the second horizontal connecting rod 6 are provided with light reflecting strips 25; the first telescopic supporting column 3 and the second telescopic supporting column 4 are parallel to each other; the first horizontal connecting rod 5 and the second horizontal connecting rod 6 are parallel to each other.
The characteristics of this embodiment are that at first whole device utilizes flexible support column 3 on circular base 1 and No. two flexible support column 4 on circular base 2 to support to utilize horizontal connecting rod 5 and No. two horizontal connecting rod 6 to carry out joint support to flexible support column 3 and No. two flexible support column 4. Wherein more telescopic support columns and horizontal connecting rods can be added to increase the length of the fence. When the height of the fence is required to be increased, the vertical sliding limiting rod 13 extending into the first round opening 10 and the second round opening 12 is pulled up by pulling the handle 24, so that the vertical sliding limiting rod 13 leaves the limiting groove 17. At this time, the circular stopper 14 pushes the compression spring 15 to deform. Wherein the portal bracing frame 11 plays a role of supporting the vertical sliding limiting rod 13. Then the rocking handle 21 is shaken to enable the gear 20 in the first strip-shaped opening 19 to rotate, the gear 20 and the rack 18 are matched to drive the horizontal sliding limiting rod 16 to extend into the hollow mounting cylinder 9, and then the first rocking rod 7 and the second rocking rod 8 are driven to rock, so that the included angle between the first rocking rod 7 and the second rocking rod 8 is reduced, simultaneously swinging arms 7 and No. two swinging arms 8 drive No. three swinging arms 22 and No. four swinging arms 23 and swing, make the contained angle between No. three swinging arms 22 and No. four swinging arms 23 diminish, be equivalent to the quadrangle and produce deformation this moment, horizontal connecting rod 5 is fixed, will jack up No. two horizontal connecting rod 6 through the deformation of swinging arms 7 and No. two swinging arms 8 and No. three swinging arms 22 and No. four swinging arms 23, also will lengthen the height of a flexible support column 3 and No. two flexible support columns 4 when making No. two horizontal connecting rod 6 risees. After the height adjustment is finished, the pulling handle 24 is released, so that the vertical sliding limiting rod 13 is embedded into the limiting groove 17 again under the action of the restoring force of the compression spring 15 to limit and fix the horizontal sliding limiting rod 16. When the height of the fence is required to be lowered, the same method is used, the horizontal sliding limiting rod 16 extends out of the hollow mounting cylinder body 9 to drive the second horizontal connecting rod 6, the first telescopic supporting column 3 and the second telescopic supporting column 4 to reduce the height, the height of the fence can be conveniently adjusted anytime and anywhere according to actual construction terrain, and therefore the fence is suitable for the actual terrain and is more convenient and practical.
In this embodiment, at first the whole device utilizes flexible support column 3 on circular base 1 and flexible support column 4 No. two on circular base 2 to support to utilize horizontal connecting rod 5 and horizontal connecting rod 6 No. two to carry out joint support to flexible support column 3 and flexible support column 4 No. two. Wherein more telescopic support columns and horizontal connecting rods can be added to increase the length of the fence. When the height of the fence is required to be increased, the vertical sliding limiting rod 13 extending into the first round opening 10 and the second round opening 12 is pulled up by pulling the handle 24, so that the vertical sliding limiting rod 13 leaves the limiting groove 17. At this time, the circular stopper 14 pushes the compression spring 15 to deform. Wherein the portal bracing frame 11 plays a role of supporting the vertical sliding limiting rod 13. Then the rocking handle 21 is shaken to enable the gear 20 in the first strip-shaped opening 19 to rotate, the gear 20 and the rack 18 are matched to drive the horizontal sliding limiting rod 16 to extend into the hollow mounting cylinder 9, and then the first rocking rod 7 and the second rocking rod 8 are driven to rock, so that the included angle between the first rocking rod 7 and the second rocking rod 8 is reduced, simultaneously swinging arms 7 and No. two swinging arms 8 drive No. three swinging arms 22 and No. four swinging arms 23 and swing, make the contained angle between No. three swinging arms 22 and No. four swinging arms 23 diminish, be equivalent to the quadrangle and produce deformation this moment, horizontal connecting rod 5 is fixed, will jack up No. two horizontal connecting rod 6 through the deformation of swinging arms 7 and No. two swinging arms 8 and No. three swinging arms 22 and No. four swinging arms 23, also will lengthen the height of a flexible support column 3 and No. two flexible support columns 4 when making No. two horizontal connecting rod 6 risees. After the height adjustment is finished, the pulling handle 24 is released, so that the vertical sliding limiting rod 13 is embedded into the limiting groove 17 again under the action of the restoring force of the compression spring 15 to limit and fix the horizontal sliding limiting rod 16. When the height of the fence needs to be adjusted down, the same method is used, the horizontal sliding limiting rod 16 extends out of the hollow mounting cylinder 9 to drive the second horizontal connecting rod 6, the first telescopic supporting column 3 and the second telescopic supporting column 4 to reduce the height. Wherein the reflective strips 25 serve to warn pedestrians and vehicles by reflection of light.
Further optimization is made for the above embodiment: in the above embodiment, before the fence height adjustment process is finished, one hand of the worker needs to rotate the shaking handle to drive the gear to rotate and horizontally slide the horizontal movement of the limiting rod 16, the other hand needs to lift the pulling handle 24 all the time to keep the vertical sliding limiting rod to be separated from the limiting groove, so that the smooth height adjustment is ensured. Therefore, it is necessary to further improve the above embodiment, so that the enclosure can be lifted by a single person operating on one side. On the basis of the requirement, a hanging rope is additionally arranged on the pulling handle, hooks for tensioning the hanging rope are arranged in the middle positions of the second horizontal connecting rod (6) and the first horizontal connecting rod (5), the hanging rope is composed of a plurality of miniature metal circles which are nested with each other, and the size of each metal circle is slightly larger than that of each hook.
The working principle is as follows: when the lifting state is adjusted, the hanging rope on the pulling handle is firstly hung in the middle position of a second horizontal connecting rod (6) positioned at the top of the fence through the miniature metal ring on the hanging rope, the hook part of the hook is hung in the middle through selecting the proper metal ring, so that the lower end of the pulling handle can be separated from the limiting groove as the standard, then the lifting operation can be carried out through the rotating gear, the pulling handle does not need to be operated in the whole process of the rotating gear, and the unilateral operation is realized. After lifting is finished and a locking limiting state is required, the hook is taken down, after a vertical sliding limiting rod 13 on a pulling handle enters a limiting groove, a hanging rope on the pulling handle is hung in the middle position of a first horizontal connecting rod (5) positioned at the bottom of a fence through a miniature metal ring on the hanging rope, and a hook part of the hook is hung through selecting a proper metal ring during the hanging process, so that the lower end of the vertical sliding limiting rod 13 can be tightly extruded on the position of the limiting groove, the extrusion force of a spring is enhanced in the process, the vertical sliding limiting rod 13 cannot fall off from the limiting groove under the condition of severe shaking in the gravity direction, and the phenomenon of scattering is avoided;
therefore, the hook and the hanging rope are designed to temporarily hang up in the lifting process, single-side operation is realized, and the probability of scattering the frame under the condition of swinging in the gravity direction of the fence can be greatly reduced after locking.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (3)
1. A municipal engineering fence with adjustable height comprises a first round base (1) and a second round base (2) and is characterized in that the upper surfaces of the first round base (1) and the second round base (2) are respectively provided with a first telescopic supporting column (3) and a second telescopic supporting column (4) with upward telescopic ends, the lower ends of the inner side surfaces of the first telescopic supporting column (3) and the second telescopic supporting column (4) are connected through a first horizontal connecting rod (5), the upper ends of the inner side surfaces of the telescopic ends of the first telescopic supporting column (3) and the second telescopic supporting column (4) are connected through a second horizontal connecting rod (6), the upper surface of the first horizontal connecting rod (5) is hinged with a first oscillating rod (7) and a second oscillating rod (8), and the first oscillating rod (7) is positioned on the left side of the second oscillating rod (8), the inner side surface of the first swing rod (7) is hinged with a hollow installation barrel body (9), the right side surface of the hollow installation barrel body (9) is provided with a rectangular opening, the right side surface of the upper surface of the hollow installation barrel body (9) is provided with a round opening (10), the upper surface of the hollow installation barrel body (9) is provided with a door-shaped support frame (11) above the round opening (10), the upper surface of the door-shaped support frame (11) is provided with a round opening (12), a vertical sliding limiting rod (13) extending into the hollow installation barrel body (9) from the round opening (10) is arranged in the round opening (12), a round limiting piece (14) is fixed at one end of the side surface of the vertical sliding limiting rod (13) which is positioned at the inner side of the door-shaped support frame (11), a compression spring (15) is sleeved on the side surface of the vertical sliding limiting rod (13) before the round opening (12) and the round limiting piece (14), the upper surface of the inner side of the second swing rod (8) is hinged with a horizontal sliding limiting rod (16), the upper surface of the horizontal sliding limiting rod (16) is provided with a plurality of limiting grooves (17) matched with the vertical sliding limiting rod (13), the lower surface of the horizontal sliding limiting rod (16) is provided with a rack (18), the right side of the lower surface of the hollow mounting cylinder body (9) is provided with a bar-shaped opening (19), a gear (20) which is lapped with the lower surface of the rack (18) is arranged in the bar-shaped opening (19), the front surface of the hollow mounting cylinder body (9) is provided with a swing handle (21) which is connected with the gear (20), the lower surface of the second horizontal connecting rod (6) is hinged with a third swing rod (22) and a fourth swing rod (23), and the lower end of the third swing rod (22) is hinged with the upper end of the first swing rod (7), the fourth oscillating rod (23) is hinged with the upper end of the second oscillating rod (8), a pulling handle (24) is arranged on the upper end face of the vertical sliding limiting rod (13) and above the door-shaped support frame (11), a hanging rope is further arranged on the pulling handle (24), hooks for tensioning the hanging rope are arranged at the middle positions of the second horizontal connecting rod (6) and the first horizontal connecting rod (5), the hanging rope is composed of a plurality of micro metal circles which are nested with each other, and the size of each metal circle is slightly larger than that of each hook; the front surfaces of the first telescopic supporting column (3), the second telescopic supporting column (4), the first horizontal connecting rod (5) and the second horizontal connecting rod (6) are provided with light reflecting strips (25);
when the lifting state is adjusted, the hanging rope on the pulling handle is firstly hung on the middle position of a second horizontal connecting rod (6) positioned at the top of the fence through the miniature metal ring on the hanging rope, the hook part of the hook is hung through selecting a proper metal ring during the process so as to enable the lower end of the pulling handle to be separated from the limiting groove, then the gear can be rotated to carry out lifting operation, the pulling handle does not need to be operated in the whole process of rotating the gear, and unilateral operation is realized; after lifting, when needing to enter a locking limiting state, the hook is taken down, after a vertical sliding limiting rod (13) on a pulling handle enters a limiting groove, a hanging rope on the pulling handle is hung in the middle position of a horizontal connecting rod (5) at the bottom of the fence through a miniature metal ring on the hanging rope, a hook part of the hook is hung through a selected proper metal ring in the middle period, so that the lower end of the vertical sliding limiting rod (13) can be tightly extruded to the limiting groove, the extrusion force of the spring is strengthened in the process, and under the condition that the vertical sliding limiting rod (13) is seriously shaken in the gravity direction, the vertical sliding limiting rod (13) cannot fall off from the limiting groove, so that the phenomenon of scattering is avoided.
2. The municipal engineering fence with adjustable height according to claim 1, wherein the first telescopic supporting column (3) and the second telescopic supporting column (4) are parallel to each other.
3. The municipal works fence with adjustable height according to claim 1, wherein the first horizontal connecting rod (5) and the second horizontal connecting rod (6) are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301864.7A CN107974974B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301864.7A CN107974974B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
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| Publication Number | Publication Date |
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| CN107974974A CN107974974A (en) | 2018-05-01 |
| CN107974974B true CN107974974B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711301864.7A Active CN107974974B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108999468B (en) * | 2018-07-27 | 2020-05-12 | 国网河北省电力有限公司新乐市供电分公司 | Can dismantle electric power rail |
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|---|---|---|---|---|
| JPH0971914A (en) * | 1995-06-27 | 1997-03-18 | Sekisui Jushi Co Ltd | Protective wall combined with fence |
| JP2012225139A (en) * | 2011-04-20 | 2012-11-15 | Fujiwara Sangyo Kk | Emergency protection device |
| CN203247523U (en) * | 2013-05-23 | 2013-10-23 | 常孝猛 | Road guardrail with telescopic function |
| CN106081995A (en) * | 2016-07-16 | 2016-11-09 | 成都赋阳技术开发有限公司 | A kind of electric power overhaul device |
| CN205934786U (en) * | 2016-08-15 | 2017-02-08 | 泉州市巨将防盗设备有限公司 | Scalable banister rod device |
| CN206359196U (en) * | 2017-01-09 | 2017-07-28 | 马尔科液压升降平台（宁波）有限公司 | Scissors type elevating guardrail |
| CN206554481U (en) * | 2017-02-15 | 2017-10-13 | 马凤龙 | A kind of portable scaffold |
-
2017
- 2017-12-10 CN CN201711301864.7A patent/CN107974974B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0971914A (en) * | 1995-06-27 | 1997-03-18 | Sekisui Jushi Co Ltd | Protective wall combined with fence |
| JP2012225139A (en) * | 2011-04-20 | 2012-11-15 | Fujiwara Sangyo Kk | Emergency protection device |
| CN203247523U (en) * | 2013-05-23 | 2013-10-23 | 常孝猛 | Road guardrail with telescopic function |
| CN106081995A (en) * | 2016-07-16 | 2016-11-09 | 成都赋阳技术开发有限公司 | A kind of electric power overhaul device |
| CN205934786U (en) * | 2016-08-15 | 2017-02-08 | 泉州市巨将防盗设备有限公司 | Scalable banister rod device |
| CN206359196U (en) * | 2017-01-09 | 2017-07-28 | 马尔科液压升降平台（宁波）有限公司 | Scissors type elevating guardrail |
| CN206554481U (en) * | 2017-02-15 | 2017-10-13 | 马凤龙 | A kind of portable scaffold |
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| CN107974974A (en) | 2018-05-01 |
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Effective date of registration: 20200714 Address after: No. 103, Wenchang East Road, Taixing high tech Industrial Development Zone, Taizhou City, Jiangsu Province Applicant after: Pengtu Construction Co., Ltd Address before: 450000 Jinshui District, Zhengzhou City, Henan Province, No. 9 Jingliu Road Applicant before: Meng Sanjie |
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