CN112195758B - Municipal administration bridge middle part protector - Google Patents
Municipal administration bridge middle part protector Download PDFInfo
- Publication number
- CN112195758B CN112195758B CN202011151422.0A CN202011151422A CN112195758B CN 112195758 B CN112195758 B CN 112195758B CN 202011151422 A CN202011151422 A CN 202011151422A CN 112195758 B CN112195758 B CN 112195758B
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- bridge
- upright post
- rod
- assembled
- support rods
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a municipal bridge middle protection device which comprises C-shaped connecting pieces arranged at opposite surfaces of bridges on two sides, wherein a support rod is arranged on one side, away from the bridge, of each C-shaped connecting piece, an upright post is assembled between the support rods on the two sides, each upright post is in an inverted V shape, connecting sleeves are arranged at two sides of the inner bottom of each upright post, the support rods penetrate through the connecting sleeves, and screws for connecting the support rods are screwed into the outer walls of the connecting sleeves; a first energy absorbing spring is assembled on the bracket rod and acts between the upright post and the C-shaped connecting piece; a connecting pipe is longitudinally arranged at the position of the inner top of the upright post, a steel plate is welded between the connecting pipe and the inner wall of the upright post, and a main anti-collision rod is assembled through the connecting pipe; this device can realize middle transition protection, avoids the vehicle on the bridge of one side to rush into on the opposite side bridge, avoids the vehicle to fall off the bridge simultaneously.
Description
Technical Field
The invention relates to a municipal bridge middle protection device.
Background
On the expressway, a great number of viaducts or bridges can be encountered, and a width interval is formed between the bridges which pass in two directions; the guardrail need be installed in the both sides of bridge, but the guardrail only has the ability of a heavy protection, and when the vehicle collided with the guardrail, the guardrail fracture can lead to the vehicle to fall from the isolated position department of adjacent bridge, because the difference in height with ground is great usually, consequently after falling, personnel in the vehicle survived the probability very little.
Therefore, the municipal bridge middle protection device capable of realizing middle transition protection and preventing a vehicle on one side of the bridge from rushing into the other side of the bridge and simultaneously preventing the vehicle from falling into the bridge is specially designed for the adjacently constructed bridge.
Disclosure of Invention
The invention aims to solve the technical problem of providing a municipal bridge middle protection device which can realize middle transition protection, prevent a vehicle on one side bridge from rushing into the other side bridge and prevent the vehicle from falling into the bridge.
In order to solve the problems, the invention adopts the following technical scheme:
a municipal bridge middle protection device comprises C-shaped connecting pieces arranged on opposite surfaces of bridges on two sides, wherein one side, away from the bridge, of each C-shaped connecting piece is provided with a support rod, an upright post is assembled between the support rods on the two sides, each upright post is in an inverted V shape, connecting sleeves are arranged at positions on two sides of the inner bottom of each upright post, the support rods penetrate through the connecting sleeves, and screws for connecting the support rods are screwed into the outer walls of the connecting sleeves; a first energy absorbing spring is assembled on the bracket rod and acts between the upright post and the C-shaped connecting piece; a connecting pipe is longitudinally arranged at the position of the inner top of the upright post, a steel plate is welded between the connecting pipe and the inner wall of the upright post, and a main anti-collision rod is assembled through the connecting pipe; a first screw is assembled between the main anti-collision rod and the connecting pipe; rib plates are welded at the inner inclined planes on the two sides of the upright post, a plurality of assembling holes longitudinally penetrate through the surface of each rib plate, the distances from the assembling holes to the inner wall of the upright post are consistent, and the assembling holes on the same side are arranged in an inclined manner; a sub impact bar is fitted through the fitting hole; and a transverse pipe is welded at the position of the inner bottom of the upright post.
Preferably, a transversely arranged lining rod is poured inside the bridge, part of the lining rod protrudes to the outside of the bridge, a gap is formed between the inner end face of the C-shaped connecting piece and the side face of the bridge, and the part of the lining rod protruding to the outside of the bridge is located at the gap position; a second energy-absorbing spring is assembled on the lining rod and acts between the side wall of the bridge and the C-shaped connecting piece; a square box is poured in the bridge, the lining rod transversely penetrates through the square box, and a pouring hole penetrates through the outer surface of the square box; bolts are welded on the upper end face and the lower end face of the square box and vertically extend to the outside of the bridge; u-shaped grooves are formed in the upper end face and the lower end face of the C-shaped connecting piece, and the bolt penetrates through the U-shaped grooves and is matched with a nut; when the U-shaped groove is installed, the distance between the bolt and the bottom of the U-shaped groove is 4 cm-8 cm; the wire diameter of the second energy-absorbing spring is larger than that of the first energy-absorbing spring; the function of the structure is to increase the energy absorption capacity and secondly to strengthen the structural strength of the side edges of the bridge. Firstly, pouring the lining rods to increase the strength of the side edges of the bridge and reduce the probability of side collapse; then, the lining rod can position the second energy-absorbing spring, the C-shaped connecting piece acts through the second energy-absorbing spring, when the upright post is violently impacted, for example, a vehicle is impacted from the right side, the deformation of the first energy-absorbing spring is not enough to effectively absorb the impact force, the main frame rod is displaced towards the direction of the bridge under the action of the upright post, and the compression energy absorption is carried out through the second energy-absorbing spring during the displacement; meanwhile, the bolt slides along the U-shaped groove to provide a certain displacement energy absorption space for the C-shaped connecting piece; in the traditional technology, the bolt for fixing is driven into the bridge, and when the collision force is large, the bolt can be pulled out in the mounting mode, so that the overall strength is poor. In the structure, the bolt is welded with the square box, and the square box is poured in the bridge, so that the position of the bolt is effectively fixed.
Preferably, a mounting hole is radially arranged on the body of the lining rod in a penetrating manner; a threaded steel bar is assembled through the mounting hole; the setting of twisted steel is first to strengthen the structural strength of bridge, and secondly increases the tight degree of being connected between inside lining pole and the bridge.
Preferably, a rubber sleeve is assembled between the two right and left opposite support rods, a hoop is matched between the rubber sleeve and the support rods at the two ends, and the distance between the end faces of the support rods at the two ends is larger than 10 cm.
Preferably, a first mounting hole is formed in the upper end of the upright column, a light screen is mounted at the upper end of the upright column, a connecting shaft is welded at the bottom of the light screen, a retainer ring is arranged on the outer wall of the connecting shaft, and the connecting shaft penetrates through the first mounting hole downwards and then is matched with a first nut; the passing directions of the two-way bridge are opposite, so that light pollution can exist, and the driving safety is influenced. After having adopted above-mentioned structure, can realize the shading through the light screen, avoid the mutual influence of subtending vehicle.
Preferably, the main anti-collision rod is a galvanized steel rod, and the wall thickness is 8 mm-12 mm.
Preferably, a soft sleeve made of rubber is sleeved on the outer wall of the main anti-collision rod, protruding portions are uniformly distributed on the inner wall of the soft sleeve, and the soft sleeve contacts the main anti-collision rod through the protruding portions; the flexible sleeve is in clearance fit with the main anti-collision rod through the convex part; the soft sleeve has the technical effect of soft protection; the arrangement of the convex part enables a certain energy absorption gap to be formed between the soft sleeve and the main anti-collision rod, and the deformation range of the soft sleeve is increased.
Preferably, the wall thickness of the soft sleeve is 10 mm-20 mm.
The invention has the beneficial effects that:
1) the device is built between two adjacent bridges, so that the gap between the bridges can be plugged, and the risk of falling of vehicles is avoided;
2) in the device, through the structural form that the upright posts are matched with the main anti-collision rod and the auxiliary anti-collision rod, a vehicle running on one side of the bridge can be prevented from rushing into the other side of the bridge, and the technical effect of transition protection is achieved;
3) the auxiliary anti-collision rods on the same side are obliquely arranged, when a vehicle collides, the lower part of the vehicle collides with the auxiliary anti-collision rods firstly, then the upper part of the vehicle collides with the auxiliary anti-collision rods above, and a driver is positioned in a carriage and usually positioned at the upper part, so that the body damage of the driver caused by collision can be reduced by the obliquely arranged auxiliary anti-collision rods;
4) the device is easy to be connected with a bridge, and is convenient to build;
5) the inverted V-shaped upright posts are adopted, so that the upright posts are more stable in structure;
6) the main bumper bar arranged in the device is thick and strong, so that vehicles can be effectively intercepted;
7) the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the inner liner rod;
FIG. 3 is a top view of the C-shaped connector;
FIG. 4 is a cross-sectional view of the stud;
FIG. 5 is a schematic view of the assembly of the pillar and the main crash bar;
FIG. 6 is a cross-sectional view of the flexible sleeve;
fig. 7 is a schematic structural diagram of the light shielding plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
A municipal bridge middle protection device comprises C-shaped connecting pieces 1 arranged on opposite surfaces of bridges on two sides, wherein one side, far away from the bridge, of each C-shaped connecting piece 1 is provided with a support rod 2, an upright post 3 is assembled between the support rods 2 on the two sides, each upright post 3 is in an inverted V shape, connecting sleeves 301 are arranged at two sides of the inner bottom of each upright post 3, the support rods 2 penetrate through the connecting sleeves 301, and screws 302 for connecting the support rods 2 are screwed into the outer walls of the connecting sleeves 301; a first energy absorbing spring 6 is assembled on the bracket rod 2, and the first energy absorbing spring 6 acts between the upright post 3 and the C-shaped connecting piece 1; a connecting pipe 303 is longitudinally arranged at the inner top position of the upright post 3, a steel plate 304 is welded between the connecting pipe 303 and the inner wall of the upright post 3, and a main anti-collision rod 4 is assembled through the connecting pipe 303; a first screw 401 is assembled between the main impact beam 4 and the connecting pipe 303; rib plates 305 are welded at the inner inclined plane positions on two sides of the upright post 3, a plurality of assembling holes 306 longitudinally penetrate through the surface of the rib plate 305, the distances from the assembling holes 306 to the inner wall of the upright post 3 are consistent, and the assembling holes 306 on the same side are arranged in an inclined manner; the sub impact beam 5 is fitted through the fitting hole 306; a horizontal pipe 307 is welded at the inner bottom position of the upright post 3.
Example 2
A transversely arranged lining rod 7 is poured inside the bridge, part of the lining rod 7 protrudes to the outside of the bridge, a gap is formed between the inner end surface of the C-shaped connecting piece 1 and the side surface of the bridge, and the part of the lining rod 7 protruding to the outside of the bridge is positioned at the gap position; a second energy-absorbing spring 701 is assembled on the lining rod 7, and the second energy-absorbing spring 701 acts between the side wall of the bridge and the C-shaped connecting piece 1; a square box 8 is poured in the bridge, the lining rod 7 transversely penetrates through the square box 8, and a pouring hole 801 penetrates through the outer surface of the square box 8; bolts 802 are welded on the upper end face and the lower end face of the square box 8, and the bolts 802 vertically extend to the outside of the bridge; u-shaped grooves 121 are formed in the upper end face and the lower end face of the C-shaped connecting piece 1, and the bolts 802 penetrate through the U-shaped grooves 121 and are matched with nuts 803; when installed, the bolt 802 is 6cm from the bottom of the U-shaped groove 121; the wire diameter of the second energy absorbing spring 701 is larger than that of the first energy absorbing spring 6; the function of the structure is to increase the energy absorption capacity and secondly to strengthen the structural strength of the side edges of the bridge. Firstly, pouring the lining rods to increase the strength of the side edges of the bridge and reduce the probability of side collapse; then, the lining rod can position the second energy-absorbing spring, the C-shaped connecting piece acts through the second energy-absorbing spring, when the upright post is violently impacted, for example, a vehicle is impacted from the right side, the deformation of the first energy-absorbing spring is not enough to effectively absorb the impact force, the main frame rod is displaced towards the direction of the bridge under the action of the upright post, and the compression energy absorption is carried out through the second energy-absorbing spring during the displacement; meanwhile, the bolt slides along the U-shaped groove to provide a certain displacement energy absorption space for the C-shaped connecting piece; in the traditional technology, the bolt for fixing is driven into the bridge, and when the collision force is large, the bolt can be pulled out in the mounting mode, so that the overall strength is poor. In the structure, the bolt is welded with the square box, and the square box is poured in the bridge, so that the position of the bolt is effectively fixed.
Example 3
A mounting hole radially penetrates through the body of the lining rod 7; a threaded reinforcing bar 777 is fitted through the mounting hole; the arrangement of the deformed steel bars 777 firstly strengthens the structural strength of the bridge and secondly increases the connection tightness between the lining rods 7 and the bridge.
Example 4
The rubber sleeve 221 is assembled between the two right and left opposite support rods 2, the rubber sleeve 221 is matched with the support rods 2 at two ends through a hoop 222, and the distance between the end faces of the support rods 2 at two ends is larger than 10 cm.
Example 5
A first mounting hole 331 is formed in the upper end of the upright post 3, a light shielding plate 332 is mounted at the upper end of the upright post 3, a connecting shaft 333 is welded to the bottom of the light shielding plate 332, a retaining ring 334 is arranged on the outer wall of the connecting shaft 333, and the connecting shaft 333 is matched with a first nut 335 after penetrating through the first mounting hole 331 downwards; the passing directions of the two-way bridge are opposite, so that light pollution can exist, and the driving safety is influenced. After having adopted above-mentioned structure, can realize the shading through the light screen, avoid the mutual influence of subtending vehicle.
The main anti-collision rod 4 is a galvanized steel rod, and the wall thickness is 10 mm.
Example 6
The outer wall of the main anti-collision rod 4 is sleeved with a soft sleeve 9 made of rubber, the inner wall of the soft sleeve 9 is uniformly provided with protruding parts 991, and the soft sleeve 9 contacts the main anti-collision rod 4 through the protruding parts 991; the flexible sleeve 9 is matched with the main bumper bar 4 at intervals through the convex part 991; the soft sleeve has the technical effect of soft protection; the arrangement of the boss 991 enables a certain energy absorption gap to be formed between the flexible sleeve 9 and the main bumper bar 4, and the deformation range of the flexible sleeve is increased.
The wall thickness of the soft sleeve 9 is 16 mm.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a municipal bridge middle part protector which characterized in that: the connecting device comprises C-shaped connecting pieces (1) arranged on opposite surfaces of bridges on two sides, wherein one side, far away from the bridge, of each C-shaped connecting piece (1) is provided with a support rod (2), an upright post (3) is assembled between the support rods (2) on the two sides, each upright post (3) is in a reverse V shape, two side positions of the inner bottom of each upright post (3) are provided with connecting sleeves (301), each support rod (2) penetrates through each connecting sleeve (301), and screws (302) for connecting the support rods (2) are screwed into the outer walls of the connecting sleeves (301); a first energy absorbing spring (6) is assembled on the bracket rod (2), and the first energy absorbing spring (6) acts between the upright post (3) and the C-shaped connecting piece (1); a connecting pipe (303) is longitudinally arranged at the position of the inner top of the upright post (3), a steel plate (304) is welded between the connecting pipe (303) and the inner wall of the upright post (3), and a main anti-collision rod (4) is assembled through the connecting pipe (303); a first screw (401) is assembled between the main anti-collision rod (4) and the connecting pipe (303); rib plates (305) are welded at the inner inclined plane positions on two sides of the upright post (3), assembling holes (306) longitudinally penetrate through the surface of each rib plate (305), a plurality of assembling holes (306) are arranged, the distances from the assembling holes (306) to the inner wall of the upright post (3) are consistent, and the assembling holes (306) on the same side are arranged in an inclined mode; a sub impact bar (5) is fitted through the fitting hole (306); a transverse pipe (307) is welded at the position of the inner bottom of the upright post (3); the bridge is characterized in that a transversely arranged lining rod (7) is poured inside the bridge, part of the lining rod (7) protrudes to the outside of the bridge, a gap is formed between the inner end surface of the C-shaped connecting piece (1) and the side surface of the bridge, and the part of the lining rod (7) protruding to the outside of the bridge is located at the gap; a second energy-absorbing spring (701) is assembled on the lining rod (7), and the second energy-absorbing spring (701) acts between the side wall of the bridge and the C-shaped connecting piece (1); a square box (8) is poured in the bridge, the lining rod (7) transversely penetrates through the square box (8), and a pouring hole (801) penetrates through the outer surface of the square box (8); bolts (802) are welded on the upper end face and the lower end face of the square box (8), and the bolts (802) vertically extend to the outside of the bridge; u-shaped grooves (121) are formed in the upper end face and the lower end face of the C-shaped connecting piece (1), and the bolts (802) penetrate through the U-shaped grooves (121) and then are matched with nuts (803); when the U-shaped groove is installed, the distance between the bolt (802) and the bottom of the U-shaped groove (121) is 4 cm-8 cm; the wire diameter of the second energy absorption spring (701) is larger than that of the first energy absorption spring (6).
2. The municipal bridge middle guard of claim 1, wherein: a mounting hole is radially arranged on the rod body of the lining rod (7) in a penetrating manner; through which a threaded reinforcing bar (777) is fitted.
3. The municipal bridge middle guard of claim 1, wherein: the left and right two opposite support rods (2) are provided with rubber sleeves (221) in a matching mode, the rubber sleeves (221) are matched with the support rods (2) at two ends respectively, and the distance between the end faces of the support rods (2) at the two ends is larger than 10 cm.
4. The municipal bridge middle guard of claim 1, wherein: the upper end of the upright post (3) is provided with a first mounting hole (331), the upper end of the upright post (3) is provided with a light shielding plate (332), the bottom of the light shielding plate (332) is welded with a connecting shaft (333), the outer wall of the connecting shaft (333) is provided with a retaining ring (334), and the connecting shaft (333) downwards penetrates through the first mounting hole (331) and then is matched with a first nut (335).
5. The municipal bridge middle guard of claim 1, wherein: the main anti-collision rod (4) is a galvanized steel rod, and the wall thickness is 8 mm-12 mm.
6. The municipal bridge middle guard of claim 1 or 5, wherein: a soft sleeve (9) made of rubber is sleeved on the outer wall of the main anti-collision rod (4), protruding parts (991) are uniformly distributed on the inner wall of the soft sleeve (9), and the soft sleeve (9) is in contact with the main anti-collision rod (4) through the protruding parts (991); the flexible sleeve (9) is in clearance fit with the main bumper bar (4) through the bulge (991).
7. The municipal bridge middle guard of claim 6, wherein: the wall thickness of the soft sleeve (9) is 10 mm-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011151422.0A CN112195758B (en) | 2020-10-25 | 2020-10-25 | Municipal administration bridge middle part protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011151422.0A CN112195758B (en) | 2020-10-25 | 2020-10-25 | Municipal administration bridge middle part protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112195758A CN112195758A (en) | 2021-01-08 |
| CN112195758B true CN112195758B (en) | 2022-04-19 |
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| CN202011151422.0A Active CN112195758B (en) | 2020-10-25 | 2020-10-25 | Municipal administration bridge middle part protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174884A (en) * | 2021-04-09 | 2021-07-27 | 冉洪钊 | Town road side anti-falling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101342135B1 (en) * | 2011-12-27 | 2013-12-13 | 재단법인 포항산업과학연구원 | Movable safety rail |
| CN207017158U (en) * | 2017-07-26 | 2018-02-16 | 陕西华路达公路勘察设计有限公司 | A kind of guard bar structure |
| CN207227953U (en) * | 2017-09-14 | 2018-04-13 | 信阳公路勘察设计院 | A kind of Novel road bridge safety guard rail structure |
| CN208594514U (en) * | 2018-07-16 | 2019-03-12 | 章龙 | A kind of safety guard fence for super highway |
| CN111719469A (en) * | 2020-07-24 | 2020-09-29 | 沈阳促晋科技有限公司 | Anti-collision isolation guardrail device in highway center |
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Effective date of registration: 20220329 Address after: 214000 building g, Xieqiao Pioneer Park, 28 Yuedong Road, Yixing huankeyuan, Wuxi City, Jiangsu Province Applicant after: Wuxi Tiangong Construction Co.,Ltd. Address before: 461506 group 3, Luzhuang village, Laocheng Town, Changge City, Xuchang City, Henan Province Applicant before: Li Xinxu |
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