CN112779859A - Protection system based on pier independent protection performance - Google Patents
Protection system based on pier independent protection performance Download PDFInfo
- Publication number
- CN112779859A CN112779859A CN202110374121.2A CN202110374121A CN112779859A CN 112779859 A CN112779859 A CN 112779859A CN 202110374121 A CN202110374121 A CN 202110374121A CN 112779859 A CN112779859 A CN 112779859A
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- CN
- China
- Prior art keywords
- cavity
- block
- chain
- guardrail
- protection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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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- 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
- 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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
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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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a protection system based on the independent protection performance of a pier, the technical scheme provides a protection system which can perform independent anti-collision induction and anti-collision protection on a guardrail and a chain of a bridge, by installing the damping induction block on the guardrail, the guardrail can be timely buffered and protected when being impacted and the impact force can be timely monitored, the effects of automatically protecting the guardrail and triggering secondary protection according to the impact force are achieved, the movable shock absorption block is arranged at the bottom of the guardrail, so that the limitation of the movable shock absorption block can be timely removed to realize secondary shock absorption when the force of colliding the guardrail is large, the comprehensive shock absorption protection effect on the guardrail and colliding objects is achieved, through connecting same mobilizable protection chain in each guardrail, realized can resumeing the partial activity space of chain to cushion the protection when the chain is collided by certain power way.
Description
Technical Field
The invention relates to the field of bridges, in particular to a protection system based on pier independent protection performance.
Background
The bridge is a building built between two banks of a river and a lake, and is divided into two types for people to pass through and vehicles to pass through according to the bearing design of the bridge, and when the bridge is easily collided and impacted by vehicles in the traffic passing process, the bridge is easily damaged.
At present stage, most bridges all can install the guardrail in both sides, and traditional guardrail is all fixed, then receives the damage easily when the guardrail receives external force striking, and still can cause the injury to clashing the object to can not in time the loss of stopping when bumping into as for.
Disclosure of Invention
In view of this, the invention provides a protection system based on pier independent protection performance, which has functions of collision induction and buffering, shock absorption and protection for guardrails and chains.
A protection system based on pier independent protection performance comprises a bridge deck, wherein a plurality of shock absorption cavities with upward openings are arranged at the left end and the right end of the bridge deck, shock absorption blocks capable of moving back and forth are arranged in the shock absorption cavities, guardrails are fixed on the upper end faces of the shock absorption blocks, guardrail protection components for performing anti-collision protection on the guardrails are arranged in the shock absorption cavities, each guardrail protection component comprises a guardrail anti-collision sensing component positioned at the lower end in each guardrail and a guardrail shock absorption component positioned in each shock absorption cavity for performing shock absorption on the corresponding guardrail, a chain cavity with a rightward opening is further arranged at the upper end in each guardrail, the same protection chain is arranged in the chain cavity in each guardrail, a chain protection component for performing anti-collision protection on the protection chain is arranged in the chain cavity, each chain protection component comprises a chain anti-collision sensing component positioned in the chain cavity and a chain shock absorption component for performing shock absorption protection on the chain, the guardrail anti-collision sensing component comprises a buffer cavity positioned at the inner lower end of the guardrail, a buffer block capable of stretching left and right in the buffer cavity is arranged in the buffer cavity, two buffer springs are connected between the right end surface of the buffer block and the right inner wall of the buffer cavity, a pressing block cavity with a downward opening is arranged at the other side of the buffer cavity in the guardrail, a supporting cavity communicated with the inside of the pressing block cavity is arranged in the inner wall of the lower end of the pressing block cavity, a pressing plate capable of moving up and down is arranged in the pressing block cavity, a supporting plate positioned in the supporting cavity is fixed on the end wall of the pressing plate, a compression spring is connected between the lower end surface of the supporting plate and the lower inner wall of the supporting cavity, the buffer block faces towards one end face of the pressing block cavity, an ejector rod which stretches into the pressing block cavity and is located on the upper side of the pressing plate is fixed on one end face of the pressing block cavity, and one end, facing towards the ejector rod, of the pressing plate is designed to be an inclined plane.
In this embodiment, guardrail damper assembly is including being located the ascending fixture block chamber of just opening in the damper block, the fixture block intracavity is equipped with ability up-and-down motion and upper end with the fixture block that terminal surface was contradicted under the clamp plate, fixture block upper end orientation the one end of buffer block is the inclined plane, terminal surface under the fixture block with be connected with reset spring between the inner wall under the fixture block chamber.
In this embodiment, a damping spring is connected between an end face of the damping block, which is far away from the buffer block, and an inner wall of the damping cavity.
In this embodiment, chain anticollision response subassembly is including being located flexible chamber that chain intracavity and opening are ascending, flexible intracavity is equipped with the flexible piece that can up-and-down motion, flexible piece lower extreme face with be connected with elastic spring between the flexible intracavity lower wall, be equipped with the ascending removal chamber of opening in the flexible piece, it is equipped with the movable block that can the side-to-side motion to remove the intracavity left end, the movable block terminal surface with be connected with pressure spring between the removal intracavity wall, the movable block up end is fixed with the upper end and stretches into the movable block in the chain intracavity, the movable block will the protection chain encloses in the chain intracavity, the one end that the movable block was kept away from the protection chain is the inclined plane design.
In this embodiment, the chain damper assembly includes the piston chamber that is located flexible intracavity wall and with flexible intracavity intercommunication, be equipped with the piston piece that can the side-to-side motion in the piston chamber, sealing connection between piston piece and the piston intracavity wall, be connected with connecting spring between piston piece terminal surface and the piston intracavity wall, the movable block is fixed with a one end towards on the terminal surface of piston piece and runs through the push rod of removal intracavity wall, the other end of push rod with the piston piece contact.
In this embodiment, briquetting chamber upper end is equipped with the briquetting that can move from top to bottom, the briquetting with sealing connection between the briquetting intracavity wall, be equipped with the left sealed chamber of opening in the right inner wall of briquetting chamber upper end, the briquetting right-hand member face is fixed with and is located sealed piece in the sealed intracavity, sealed piece down the terminal surface with be connected with elastic spring under the sealed chamber between the inner wall, sealed piece with sealing connection between the intracavity wall, be equipped with in the right inner wall of sealed chamber upper end with the atmospheric pressure chamber of piston intracavity intercommunication.
The invention has the beneficial effects that: the technical scheme provides a protection system capable of performing independent anti-collision induction and anti-collision protection on a guardrail and a chain of a bridge, and achieves the effects of performing automatic protection on the guardrail and triggering secondary protection according to collision strength by installing a damping induction block on the guardrail, realizing that the limit of the movable damping block can be timely removed to realize secondary damping when the guardrail has high strength in collision, achieving the comprehensive damping protection effect on the guardrail and collision objects, and realizing that the same movable protection chain can be connected in each guardrail to recover partial movable space of the chain to perform the damping protection when the chain is collided by a certain force, when the impact force is larger, an anti-collision protection mechanism of the whole guardrail is triggered, and the comprehensive protection effect on the lock chain is achieved.
Drawings
Fig. 1 is a schematic front view of a full-section structure according to an embodiment of the present invention.
FIG. 2 is a schematic structural view of the working state of the guardrail shock absorption and protection in FIG. 1 according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram taken at A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a structure at B in FIG. 1 according to an embodiment of the present invention;
FIG. 5 is an enlarged view of the structure at C-C in FIG. 3 according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an installation state of the protection chain in fig. 1 according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Combine accompanying drawing 1-6 a protection system based on independent protection performance of pier, including bridge floor 10, both ends all are equipped with the ascending shock attenuation chamber 32 of a plurality of openings about bridge floor 10, be equipped with the snubber block 33 of ability seesaw in the shock attenuation chamber 32, snubber block 33 up end is fixed with guardrail 23, be equipped with the guardrail protection component that carries out collision avoidance to the guardrail in the shock attenuation chamber 32, guardrail protection component is including being located guardrail collision avoidance response subassembly of lower extreme in guardrail 23 carries out absorbing guardrail shock attenuation subassembly to the guardrail in the shock attenuation chamber 32, the upper end still is equipped with opening right chain chamber 21 in guardrail 23, same protection chain 24 is installed to chain chamber 21 in guardrail 23, be equipped with the chain protection subassembly that carries out collision avoidance to protection chain 24 in chain chamber 21, chain protection subassembly is including being located chain collision avoidance response subassembly in chain chamber 21 and the chain that carries out shock attenuation protection Chain shock-absorbing component, guardrail anticollision response component includes the cushion chamber 30 that is located the lower extreme in guardrail 23, be equipped with in the cushion chamber 30 can be in the cushion chamber 30 about flexible buffer block 28, be connected with two buffer spring 27 between buffer block 28 right-hand member face and the right inner wall of cushion chamber 30, the opposite side that is located the cushion chamber 30 in guardrail 23 is equipped with the decurrent briquetting chamber 18 of opening, be equipped with in the inner wall of lower extreme in briquetting chamber 18 with the support chamber 12 of intercommunication in the briquetting chamber 18, be equipped with the clamp plate 34 that can the up-and-down motion in the briquetting chamber 18, be fixed with on the clamp plate 34 end wall be located the backup pad 13 in support chamber 12, be connected with compression spring 31 between backup pad 13 lower extreme face and the support chamber 12 lower inner wall, be fixed with one on the buffer block 28 towards on one terminal surface of briquetting chamber 18 stretch into in the briquetting chamber 18 and be located the ejector pin 29 of clamp plate 34 upside, the end of the pressure plate 34 facing the mandril 29 is designed as an inclined plane; the technical scheme provides a protection system capable of performing independent anti-collision induction and anti-collision protection on a guardrail and a chain of a bridge, and achieves the effects of performing automatic protection on the guardrail and triggering secondary protection according to collision strength by installing a damping induction block on the guardrail, realizing that the limit of the movable damping block can be timely removed to realize secondary damping when the guardrail has high strength in collision, achieving the comprehensive damping protection effect on the guardrail and collision objects, and realizing that the same movable protection chain can be connected in each guardrail to recover partial movable space of the chain to perform the damping protection when the chain is collided by a certain force, when the impact force is larger, an anti-collision protection mechanism of the whole guardrail is triggered, and the comprehensive protection effect on the lock chain is achieved.
In this embodiment, the guardrail damping assembly includes a fixture block cavity 37 located in the damping block 33 and having an upward opening, a fixture block 35 capable of moving up and down and having an upper end abutting against a lower end surface of the pressing plate 34 is located in the fixture block cavity 37, an end of the upper end of the fixture block 35 facing the buffer block 28 is an inclined surface, and a return spring 36 is connected between the lower end surface of the fixture block 35 and a lower inner wall of the fixture block cavity 37; when buffer block 28 receives the offend, buffer block 28 is extruded in buffer chamber 30, and drive ejector pin 29 and enter into briquetting chamber 18 and contradict with the inclined plane of clamp plate 34 upper end, clamp plate 34 is extruded downstream, thereby impel fixture block 35 downwards in fixture block chamber 37, fixture block 35 downstream loses the conflict with the opening inner wall of inner wall on the shock attenuation chamber 32, shock attenuation block 33 then loses the restriction this moment, when the power that collides the guardrail is said and is continued to increase, then can promote shock attenuation block 33 and carry out the buffer protection in the shock attenuation chamber 32 internalization.
In this embodiment, a damping spring 11 is connected between an end surface of the damping block 33 away from the buffer block 28 and an inner wall of the damping cavity 32; when the damping block 33 moves in the damping cavity 32, the damping spring 11 has a damping effect when compressed, thereby realizing a damping protection effect on the guard rail.
In this embodiment, the chain anti-collision sensing assembly includes a telescopic cavity 26 located in the chain cavity 21 and having an upward opening, a telescopic block 46 capable of moving up and down is arranged in the telescopic cavity 26, an elastic spring 25 is connected between a lower end surface of the telescopic block 46 and a lower inner wall of the telescopic cavity 26, a moving cavity 45 having an upward opening is arranged in the telescopic block 46, a moving block 38 capable of moving left and right is arranged at a left end in the moving cavity 45, a pressure spring 40 is connected between an end surface of the moving block 38 and an inner wall of the moving cavity 45, a moving block 22 having an upper end extending into the chain cavity 21 is fixed on an upper end surface of the moving block 38, the protecting chain 24 is enclosed in the chain cavity 21 by the moving block 22, and one end of the moving block 22, which is far away from the protecting chain 24, is designed as an inclined plane; when the protection chain 24 is collided, the protection chain 24 pushes the movable block 22 and the movable block 38 to move, the movable block 38 moves in the moving cavity 45 to compress the pressure spring 40, so that the chain is protected in a buffering mode and can be prevented from falling off from the chain cavity 21, and when the chain is installed, the chain to be installed only needs to be pushed into the chain cavity 21.
In this embodiment, the chain shock-absorbing assembly includes a piston cavity 41 located in the inner wall of the telescopic cavity 26 and communicating with the inside of the telescopic cavity 26, a piston block 43 capable of moving left and right is arranged in the piston cavity 41, the piston block 43 is connected with the inner wall of the piston cavity 41 in a sealing manner, a connecting spring 42 is connected between the end surface of the piston block 43 and the inner wall of the piston cavity 41, a push rod 39 with one end penetrating through the inner wall of the moving cavity 45 is fixed on one end surface of the moving block 38 facing the piston block 43, and the other end of the push rod 39 contacts with the piston block 43; when the chain is impacted to drive the moving block 38 to move, the push rod 39 on the moving block 38 extrudes the piston block 43, and the piston block 43 moves into the piston cavity 41 to compress and damp air in the piston cavity 41.
In this embodiment, a pressing block 14 capable of moving up and down is arranged at the upper end of the pressing block cavity 18, the pressing block 14 is connected with the inner wall of the pressing block cavity 18 in a sealing manner, a sealing cavity 17 with a leftward opening is arranged in the right inner wall at the upper end of the pressing block cavity 18, a sealing block 16 located in the sealing cavity 17 is fixed on the right end face of the pressing block 14, an elastic spring 15 is connected between the lower end face of the sealing block 16 and the lower inner wall of the sealing cavity 17, the sealing block 16 is connected with the inner wall of the sealing cavity 17 in a sealing manner, and a pneumatic cavity 19 communicated with the interior of the piston cavity 41 is arranged in the right inner wall at the; after the piston block 43 is extruded into the piston cavity 41, the air in the piston cavity 41 is extruded, the air pressure in the air pressure cavity 19 is increased, the sealing block 16 and the pressing block 14 move downwards under the action of the air pressure so as to extrude the pressing plate 34 downwards, the pressing plate 34 moves downwards to push the fixture block 35 into the fixture block cavity 37, at the moment, the damping effect of the guardrail can be recovered, and the damping protection of the protection lock chain 24 and the guardrail 23 is realized.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides a protection system based on independent protective properties of pier, includes the bridge floor, its characterized in that: the bridge deck is characterized in that a plurality of shock absorption cavities with upward openings are arranged at the left end and the right end of the bridge deck, shock absorption blocks capable of moving back and forth are arranged in the shock absorption cavities, guardrails are fixed on the upper end faces of the shock absorption blocks, guardrail protection components for preventing the guardrails from being collided are arranged in the shock absorption cavities, each guardrail protection component comprises a guardrail anti-collision sensing component positioned at the lower end in each guardrail and a guardrail shock absorption component positioned in the shock absorption cavities for absorbing shock to the guardrails, a chain cavity with a rightward opening is further arranged at the upper end in each guardrail, the same protection chain is arranged in each chain cavity in each guardrail, a chain protection component for preventing the protection chain from being collided is arranged in each chain cavity, each chain protection component comprises a chain anti-collision sensing component positioned in each chain cavity and a chain shock absorption component for preventing the chain from being collided, each guardrail anti-collision sensing component comprises a, the buffer cavity is internally provided with a buffer block which can stretch out and draw back left and right in the buffer cavity, the right end face of the buffer block is connected with two buffer springs between the right inner wall of the buffer cavity, the guardrail is internally provided with a pressing block cavity with a downward opening, the inner wall of the lower end in the pressing block cavity is internally provided with a supporting cavity communicated with the pressing block cavity, the pressing block cavity is internally provided with a pressing plate capable of moving up and down, the end wall of the pressing plate is fixedly provided with a supporting plate which is positioned in the supporting cavity, the lower end face of the supporting plate is connected with a compression spring between the inner walls of the supporting cavity, the direction of the buffer block is towards a push rod which is fixedly arranged on the end face of the pressing block cavity and is positioned on the upper side of the pressing plate, and the.
2. The protection system based on pier independent protection performance according to claim 1, wherein: the guardrail damping assembly comprises a clamping block cavity which is located in the damping block and has an upward opening, a clamping block which can move up and down and has an upper end abutting against the lower end face of the pressing plate is arranged in the clamping block cavity, the upper end of the clamping block faces towards one end of the damping block and is an inclined plane, and a reset spring is connected between the lower end face of the clamping block and the lower inner wall of the clamping block cavity.
3. The protection system based on pier independent protection performance according to claim 2, wherein: and a damping spring is connected between one end face of the damping block, which is far away from the buffer block, and one inner wall of the damping cavity.
4. The protection system based on pier independent protection performance according to claim 1, wherein: the chain anticollision response subassembly is including being located flexible chamber that chain intracavity and opening are ascending, flexible intracavity is equipped with the flexible piece of ability up-and-down motion, flexible piece lower extreme face with be connected with elastic spring under the flexible chamber between the inner wall, be equipped with the ascending removal chamber of opening in the flexible piece, it is equipped with the movable block that can the side-to-side motion to remove the intracavity left end, the movable block terminal surface with be connected with pressure spring between the removal intracavity wall, the movable block up end is fixed with the upper end and stretches into the movable block in the chain intracavity, the movable block will the protection chain encloses in the chain intracavity, the one end that the movable block was kept away from the protection chain is the inclined plane design.
5. The protection system based on pier independent protection performance according to claim 1, wherein: the chain damping assembly comprises a piston cavity which is positioned in the inner wall of the telescopic cavity and is communicated with the telescopic cavity, a piston block capable of moving left and right is arranged in the piston cavity, the piston block is connected with the inner wall of the piston cavity in a sealing manner, a connecting spring is connected between the end face of the piston block and the inner wall of the piston cavity, a push rod with one end penetrating through the inner wall of the movable cavity is fixed on one end face of the movable block, which faces the piston block, of the movable block, and the other end of the push rod is in contact with the piston block.
6. The protection system based on pier independent protection performance according to claim 5, wherein: briquetting chamber upper end is equipped with the briquetting of ability up-and-down motion, the briquetting with sealing connection between the briquetting intracavity wall, be equipped with the left sealed chamber of opening in the right inner wall of briquetting chamber upper end, the briquetting right-hand member face is fixed with and is located sealed piece in the sealed intracavity, sealed piece down the terminal surface with be connected with spring under the sealed chamber between the inner wall, sealed piece with sealing connection between the intracavity wall, be equipped with in the right inner wall of sealed chamber upper end with the atmospheric pressure chamber of piston intracavity intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374121.2A CN112779859B (en) | 2021-04-07 | 2021-04-07 | Protection system based on pier independent protection performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374121.2A CN112779859B (en) | 2021-04-07 | 2021-04-07 | Protection system based on pier independent protection performance |
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| Publication Number | Publication Date |
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| CN112779859A true CN112779859A (en) | 2021-05-11 |
| CN112779859B CN112779859B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110374121.2A Active CN112779859B (en) | 2021-04-07 | 2021-04-07 | Protection system based on pier independent protection performance |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1455847A (en) * | 1973-03-19 | 1976-11-17 | Road Research Ltd | Shock absorbers |
| CN104787247A (en) * | 2015-04-08 | 2015-07-22 | 浙江海洋学院 | Buffering cable for towing iron chain |
| CN107761562A (en) * | 2017-11-09 | 2018-03-06 | 孙艳 | A kind of reinforced type bridge anticollision barrier |
| CN108547241A (en) * | 2018-06-20 | 2018-09-18 | 沙志平 | A kind of road separation anticollision barrier |
| CN210887039U (en) * | 2019-09-27 | 2020-06-30 | 张惠英 | Anti-collision buffer guardrail for road |
| CN112195777A (en) * | 2020-10-12 | 2021-01-08 | 温州市洛港科技有限公司 | Car safety protective guard is used to crosswind is prevented to bridge |
| CN112593757A (en) * | 2021-01-07 | 2021-04-02 | 义乌市蕴岚电子商务有限公司 | Communication pole with anticollision subtracts hinder function |
-
2021
- 2021-04-07 CN CN202110374121.2A patent/CN112779859B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1455847A (en) * | 1973-03-19 | 1976-11-17 | Road Research Ltd | Shock absorbers |
| CN104787247A (en) * | 2015-04-08 | 2015-07-22 | 浙江海洋学院 | Buffering cable for towing iron chain |
| CN107761562A (en) * | 2017-11-09 | 2018-03-06 | 孙艳 | A kind of reinforced type bridge anticollision barrier |
| CN108547241A (en) * | 2018-06-20 | 2018-09-18 | 沙志平 | A kind of road separation anticollision barrier |
| CN210887039U (en) * | 2019-09-27 | 2020-06-30 | 张惠英 | Anti-collision buffer guardrail for road |
| CN112195777A (en) * | 2020-10-12 | 2021-01-08 | 温州市洛港科技有限公司 | Car safety protective guard is used to crosswind is prevented to bridge |
| CN112593757A (en) * | 2021-01-07 | 2021-04-02 | 义乌市蕴岚电子商务有限公司 | Communication pole with anticollision subtracts hinder function |
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| CN112779859B (en) | 2022-12-23 |
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Effective date of registration: 20221130 Address after: 510060 Floor 5-6, No. 358, Huanshi East Road, Yuexiu District, Guangzhou, Guangdong, China Applicant after: GUANGZHOU THIRD MUNICIPAL ENGINEERING CO.,LTD. Address before: 276800 No.29, Yanyang Road, Donggang District, Rizhao City, Shandong Province Applicant before: Rizhao yinggeng New Material Co.,Ltd. |
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