CN113062213A - Assembly type guardrail for steel bridge and assembly method thereof - Google Patents
Assembly type guardrail for steel bridge and assembly method thereof Download PDFInfo
- Publication number
- CN113062213A CN113062213A CN202110354920.3A CN202110354920A CN113062213A CN 113062213 A CN113062213 A CN 113062213A CN 202110354920 A CN202110354920 A CN 202110354920A CN 113062213 A CN113062213 A CN 113062213A
- Authority
- CN
- China
- Prior art keywords
- guardrail
- fixed
- buffer spring
- plate
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an assembled guardrail for a steel bridge and an assembling method thereof, relates to the related field of steel bridge assembling, and aims to solve the problems that in the prior art, due to the fact that an assembled steel bridge plays an important role in the fields of military transportation, emergency rescue, national defense construction, hydraulic engineering, road traffic and the like, when vehicles collide with the guardrail accidentally, rescue is difficult to be implemented at a high speed in most cases, and due to the fact that no emergency treatment device is arranged on the existing assembled guardrail, emergency treatment is difficult to be performed on the accidentally collided vehicles. The fixed mound that stands is provided with two, the rear portion fixedly connected with back dead lever of fixed mound upper end that stands, the front portion of fixed mound upper end that stands is provided with preceding dead lever, two be provided with back protection component between the back dead lever, two be provided with the guardrail main part between the preceding dead lever, the guardrail main part includes middle guardrail board, be provided with rectangular slotted hole on the middle guardrail board.
Description
Technical Field
The invention relates to the field related to steel bridge assembly, in particular to an assembled guardrail for a steel bridge and an assembling method thereof.
Background
The assembled steel bridge (also called a Bailey steel bridge) has the characteristics of simple structure, light components, convenient transportation, flexible combination, quick erection, convenient disassembly and assembly and recyclable components, has the advantages of large bearing capacity, strong structural rigidity, long fatigue life and the like, can be combined into bridges with different spans, types and purposes according to engineering design requirements, plays an important role in the fields of military transportation, emergency rescue and disaster relief, national defense construction, hydraulic engineering, road traffic and the like at home and abroad, and is widely applied. With the acceleration of the modern city construction in China, environmental problems generated in the city construction are increasingly concerned by people, and the assembly type steel bridge technology brings convenience to the city assembly type steel bridge construction process.
The assembled steel bridge comprises guardrails arranged on two sides of a bridge body, the existing guardrails are connecting rod bodies and a middle guardrail main body and mainly play a role in stopping, when vehicles collide accidentally, the assembled guardrail basically has no damping and intercepting functions on automobiles, most importantly, the assembled steel bridge does not have an emergency treatment structure on the vehicles, and as the assembled steel bridge plays an important role in the fields of military transportation, emergency rescue and disaster relief, national defense construction, hydraulic engineering, road traffic and the like, when the vehicles collide the guardrails accidentally on the road section, rescue is difficult to implement at a higher speed under most conditions, and emergency treatment measures are required for accidental collision by the guardrails; therefore, the market urgently needs to develop an assembly type guardrail for a steel bridge and an assembly method thereof to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide an assembled guardrail for a steel bridge and an assembling method thereof, and aims to solve the problems that when vehicles accidentally collide with the guardrail on a road section, rescue is difficult to be carried out at a high speed in most cases, and the current assembled guardrail is not provided with an emergency treatment device, so that emergency treatment is difficult to be carried out on the vehicles which are accidentally collided.
In order to achieve the purpose, the invention provides the following technical scheme: an assembled guardrail for a steel bridge comprises two fixed vertical piers, wherein the rear part of the upper end of each fixed vertical pier is fixedly connected with a rear fixing rod, the front part of the upper end of each fixed vertical pier is provided with a front fixing rod, a rear protection component is arranged between the two rear fixing rods, a guardrail main body is arranged between the two front fixing rods, the guardrail main body comprises a middle guardrail plate, the middle guardrail plate is provided with three rectangular groove holes, one end of the middle guardrail plate is provided with a vertical pressing plate along the front end of the rectangular groove holes, a first fixing block is arranged inside the rectangular groove holes, the first fixing block is in sliding connection with the middle guardrail plate and is fixedly connected with the vertical pressing plate, the rear protection component comprises a protection shell, the protection shell is of a C-shaped structure, the front end of the protection shell is provided with a fixing plate along the rear end of the rectangular groove holes, one side that the fixed plate is close to protective housing is provided with the pjncture needle, and the pjncture needle is fixed with the fixed plate, one side that protective housing was kept away from to the fixed plate is provided with the second fixed block, second fixed block and fixed plate fixed connection, be provided with the dwang between second fixed block and the first fixed block, every group be provided with four between second fixed block and the first fixed block the dwang rotates between the dwang to be connected, and the dwang rotates with second fixed block and first fixed block to be connected, protective housing is provided with the bleeder vent on being close to the terminal surface of pjncture needle, the pjncture needle corresponds the diameter of bleeder vent is greater than the diameter of pjncture needle, protective housing's inside is.
Preferably, the lower extreme fixedly connected with flexible intermediate lever of preceding dead lever rear end, the lower extreme fixedly connected with telescopic tube of back dead lever front end, telescopic tube and flexible intermediate lever telescopic connection, be provided with first buffer spring along the outside of flexible intermediate lever between telescopic tube and the preceding dead lever, first buffer spring's both ends are fixed with telescopic tube and preceding dead lever respectively, fixed founds mound up end is provided with vertical chute along the lower extreme of preceding dead lever, and the preceding dead lever slides along vertical chute.
Preferably, be provided with second buffer spring along the outside of first fixed block between middle guardrail board and the vertical clamp plate, second buffer spring's both ends are fixed with middle guardrail board and vertical clamp plate respectively, the upper and lower both ends of both sides all are provided with third buffer spring between guardrail main part and the back protection component, and third buffer spring's both ends are fixed with guardrail main part and back protection component respectively, the upper and lower both ends of both sides are provided with fourth buffer spring between protecting sheathing and the fixed plate, and fourth buffer spring's both ends are fixed with protecting sheathing and fixed plate respectively.
Preferably, all be provided with the connection annular on the lateral surface of preceding dead lever and back dead lever, connection annular respectively is provided with two on preceding dead lever and the back dead lever, preceding dead lever and back dead lever all are connected through connecting the semi-ring with guardrail main part and back protective component, and it is the same with the diameter of connecting the annular to connect semi-ring internal diameter, two it passes through bolt fastening behind the connection annular, and is inboard to connect the middle fixedly connected with connecting thread sleeve pipe of semi-ring.
Preferably, the guardrail body is provided with vertical guardrail bars fixedly connected with two sides of the middle guardrail plate, and the upper end and the lower end between the vertical guardrail bars are fixedly connected with the upper guardrail bar.
Preferably, the middle of the two sides of the vertical guardrail rod on the guardrail body is fixedly connected with a connecting plate, the middle of the outer side of the connecting plate is fixedly connected with a connecting screw rod, and the connecting screw rod is in threaded connection with a connecting threaded sleeve.
Preferably, the middle of the outer side of the upper guardrail rod and the outer side of the middle guardrail plate are provided with anti-collision sheaths along three rectangular slotted holes, and the outer side surfaces of the anti-collision sheaths are connected with reflective strips in a sticking mode.
A method of assembly comprising the steps of:
the method comprises the following steps: connecting the rear protection component and the connecting screw rod on the guardrail main body with the connecting threaded sleeve on the connecting semi-ring in a threaded manner;
step two: the first fixing block on one side of the vertical pressing plate penetrates through the second buffer spring and the rectangular groove hole and then is in rotating connection with the two rotating rods, and the other two rotating rods are in rotating connection with the second fixing block;
step three: connecting the fixing plate on one side of the second fixing block with the rear protection assembly through a fourth buffer spring, keeping the puncture needle on one side of the fixing plate aligned with the middle vent hole, fixing two ends of the fourth buffer spring to form an assembly main body, and transporting the assembly main body to a construction site;
step four: forming a fixed vertical pier by pouring concrete, fixing a rear fixed rod in the fixed vertical pier, placing a mould before the concrete is not hardened to form a longitudinal sliding chute, embedding a front fixed rod into the fixed vertical pier in a sliding manner, pouring the concrete at the sliding position for hardening, and enabling the front fixed rod to slide in the fixed vertical pier;
step five: the telescopic sleeve and the telescopic middle rod are respectively fixed with the rear fixing rod and the front fixing rod, and the first buffer spring is sleeved outside the telescopic middle rod and fixed before the telescopic middle rod and the front fixing rod are fixed;
step six: and sleeving the connecting semi-ring fixed with the connecting threaded sleeve and the connecting semi-ring not fixed with the connecting threaded sleeve in the connecting ring grooves of the front fixing rod and the rear fixing rod, and fixing the connecting semi-ring and the connecting semi-ring through bolts to finish assembly.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, when a vehicle collides with a guardrail when a steel bridge is put into use, the vehicle has acting force on the vertical pressing plate to push the vertical pressing plate to move outwards, and the rotating rod, the second buffer spring, the third buffer spring and the fourth buffer spring respectively have certain buffer action on the vehicle to give certain reaction time to a subsequent emergency treatment structure. The vehicle continuously has acting force on the vertical pressing plate, even the crash guardrail main body and the rear protection assembly deform, the vertical pressing plate slides to the rear protection assembly side after receiving the acting force, the rotating rod, the second buffer spring, the third buffer spring and the fourth buffer spring buffer the vehicle to have acting force, the puncture needle can be pushed to penetrate into the middle cavity of the protection shell along the air hole and puncture the air bag, fire-fighting gas in the air bag leaks into the middle cavity from the air bag and leaks out through the air hole, emergency fire fighting is carried out on the crash part of the vehicle, and the danger caused by excessive friction at the crash position, excessive heat or fire of a mechanical device is reduced; therefore, the problem that due to the fact that the assembled steel bridge plays an important role in the fields of military transportation, emergency rescue and relief, national defense construction, hydraulic engineering, road traffic and the like, when vehicles collide with the guardrail accidentally on the road section, rescue is difficult to implement at a high speed under most conditions, and due to the fact that an emergency treatment device is not arranged on the existing assembled guardrail, emergency treatment is difficult to carry out on the vehicles which collide accidentally.
2. In the invention, when a vehicle collides with a guardrail, the vehicle has acting force on the vertical pressing plate to push the vertical pressing plate to move outwards, the rotating rod, the second buffer spring, the third buffer spring and the fourth buffer spring respectively have certain buffer action on the vehicle, and when the vehicle collides only slightly, due to the existence of the rotating rod, the second buffer spring, the third buffer spring and the fourth buffer spring, the impact force on the guardrail is gradually reduced and only exists as a common guardrail to perform the blocking and intercepting action; when the air bag is impacted sufficiently, all parts collide and deform, and the puncture needle is driven to penetrate into the middle cavity of the protective shell along the air holes and puncture the air bag; the emergency fire fighting work is completed through the auxiliary matching of the rotating rod, the second buffer spring, the third buffer spring and the fourth buffer spring.
3. In the invention, a rear protection component and a connecting screw rod on a guardrail main body are in threaded connection with a connecting threaded sleeve on a connecting semi-ring; and sleeving the connecting semi-ring fixed with the connecting threaded sleeve and the connecting semi-ring not fixed with the connecting threaded sleeve in the connecting ring grooves of the front fixing rod and the rear fixing rod, and fixing the connecting semi-ring and the connecting semi-ring through bolts to finish assembly. The construction work of the whole construction site is simpler. The guardrail main part and the whole assembly main part that forms of back protection component are installed at the scene, reduce the site operation time.
Drawings
FIG. 1 is a front view of a fabricated guard rail for a steel bridge according to the present invention;
FIG. 2 is a schematic structural view of the guardrail body of the present invention;
FIG. 3 is a top view of a fabricated guard rail for a steel bridge according to the present invention;
FIG. 4 is an enlarged view of the structure at A of the present invention;
FIG. 5 is a schematic view of a connection structure of the fixed piers, the front fixing bars and the rear fixing bars of the present invention;
FIG. 6 is a cross-sectional view of the attachment structure of the guardrail body and rear guard assembly of the present invention;
FIG. 7 is an enlarged view of the structure at B of the present invention.
In the figure: 1. fixing the vertical piers; 2. a front fixing rod; 3. a rear fixing rod; 4. a connecting ring groove; 5. connecting the half rings; 6. a guardrail body; 7. a rear guard assembly; 8. an upper guard rail; 9. a middle guardrail plate; 10. an anti-collision sheath; 11. a light-reflecting strip; 12. a rectangular slot; 13. a vertical guard rail; 14. a connecting plate; 15. connecting a screw rod; 16. connecting a threaded sleeve; 17. a telescopic sleeve; 18. a telescopic middle rod; 19. a first buffer spring; 20. a longitudinal chute; 21. a vertical pressing plate; 22. a first fixed block; 23. a second buffer spring; 24. a third buffer spring; 25. rotating the rod; 26. a second fixed block; 27. a fixing plate; 28. a fourth buffer spring; 29. puncturing needle; 30. a protective housing; 31. a middle cavity; 32. an air bag; 33. and (4) air holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an embodiment of the present invention is shown: an assembled guardrail for a steel bridge comprises a fixed vertical pier 1, wherein two fixed vertical piers 1 are arranged, the rear part of the upper end of each fixed vertical pier 1 is fixedly connected with a rear fixing rod 3, the front part of the upper end of each fixed vertical pier 1 is provided with a front fixing rod 2, a rear protection component 7 is arranged between the two rear fixing rods 3, a guardrail main body 6 is arranged between the two front fixing rods 2, the guardrail main body 6 comprises a middle guardrail plate 9, the middle guardrail plate 9 is provided with a rectangular groove hole 12, the number of the rectangular groove holes 12 is three, one end of the middle guardrail plate 9 is provided with a vertical pressing plate 21 along the front end of the rectangular groove hole 12, the height of the vertical pressing plate 21 is larger and is in accordance with the height of a vehicle head, a first fixing block 22 is arranged inside the rectangular groove hole 12, the first fixing block 22 is in sliding connection with the middle guardrail plate 9, the first fixing block 22 is fixedly connected with the vertical pressing, the protective shell 30 is arranged to be a C-shaped structure, so that the situation that the middle position of the protective shell 30 is too thick to cause the guardrail to occupy too much road space is avoided, the fixing plate 27 is arranged at the front end of the protective shell 30 along the rear end of the rectangular slot 12, the puncture needle 29 is arranged at one side of the fixing plate 27 close to the protective shell 30, the puncture needle 29 is fixed with the fixing plate 27, the second fixing block 26 is arranged at one side of the fixing plate 27 far away from the protective shell 30, the second fixing block 26 is fixedly connected with the fixing plate 27, the rotating rod 25 is arranged between the second fixing block 26 and the first fixing block 22, four rotating rods 25 are arranged between each group of the second fixing blocks 26 and the first fixing block 22, the four rotating rods 25 between each group of the second fixing blocks 26 and the first fixing block 22 are in a diamond shape, the rotating rods 25 are rotatably connected with the second, the diameter of the air hole 33 corresponding to the puncture needle 29 is larger than that of the puncture needle 29, the middle cavity 31 is arranged in the protective shell 30, the air bag 32 is arranged in the middle cavity 31, sufficient fire fighting gas is filled in the air bag 32, the sharpness of the pointed end of the puncture needle 29 is low, and the puncture needle is difficult to break through the air bag 32 under the action of slight external force.
Further, the flexible intermediate lever 18 of lower extreme fixedly connected with of 2 rear ends of preceding dead levers, the lower extreme fixedly connected with telescopic tube 17 of 3 front ends of back dead levers, telescopic tube 17 and the flexible intermediate lever 18 telescopic connection, the outside along flexible intermediate lever 18 is provided with first buffer spring 19 between telescopic tube 17 and the preceding dead lever 2, the both ends of first buffer spring 19 are fixed with telescopic tube 17 and preceding dead lever 2 respectively, fixed stand 1 up end is provided with vertical chute 20 along the lower extreme of preceding dead lever 2, preceding dead lever 2 slides along vertical chute 20, extrude flexible intermediate lever 18 and first buffer spring 19 when preceding dead lever 2 moves backward, first buffer spring 19 cushions.
Further, a second buffer spring 23 is arranged between the middle guardrail plate 9 and the vertical pressing plate 21 along the outer side of the first fixing block 22, two ends of the second buffer spring 23 are respectively fixed with the middle guardrail plate 9 and the vertical pressing plate 21, the upper and lower ends of two sides between the guardrail main body 6 and the rear protection component 7 are respectively provided with a third buffer spring 24, two ends of the third buffer spring 24 are respectively fixed with the guardrail main body 6 and the rear protection component 7, the upper and lower ends of two sides between the protection shell 30 and the fixing plate 27 are provided with a fourth buffer spring 28, two ends of the fourth buffer spring 28 are respectively fixed with the protection shell 30 and the fixing plate 27, the rotating rod 25, the second buffer spring 23, the third buffer spring 24 and the fourth buffer spring 28 respectively have a certain buffering effect on the vehicle, and give a certain response time to a subsequent emergency processing structure.
Further, all be provided with on the lateral surface of preceding dead lever 2 and back dead lever 3 and connect annular 4, connect annular 4 respectively to be provided with two on preceding dead lever 2 and the back dead lever 3, preceding dead lever 2 and back dead lever 3 all are connected through connecting semi-ring 5 with guardrail main part 6 and back protection component 7, connect semi-ring 5 internal diameter and be connected annular 4's diameter the same, pass through bolt fastening behind two connecting semi-rings 5 passing connecting annular 4, the middle fixedly connected with of inboard connecting semi-ring 5 connects threaded sleeve 16.
Furthermore, vertical guardrail rods 13 are fixedly connected to two sides of the guardrail body 6 along the middle guardrail plate 9, and upper and lower ends between the two vertical guardrail rods 13 are fixedly connected with the upper guardrail rod 8.
Further, the middle of two sides of the vertical guardrail rod 13 on the guardrail main body 6 is fixedly connected with a connecting plate 14, the middle of the outer side of the connecting plate 14 is fixedly connected with a connecting screw rod 15, the connecting screw rod 15 is in threaded connection with a connecting thread sleeve 16, the connecting half ring 5 fixed with the connecting thread sleeve 16 and the connecting half ring 5 not fixed with the connecting thread sleeve 16 are sleeved in the connecting ring grooves 4 of the front fixing rod 2 and the rear fixing rod 3 and are fixed through bolts, and the assembly is completed.
Furthermore, the middle of the outer side of the upper guardrail rod 8 and the outer side of the middle guardrail plate 9 are provided with anti-collision sheaths 10 along three rectangular slotted holes 12, the outer side surfaces of the anti-collision sheaths 10 are connected with reflection strips 11 in a pasting mode, the warning effect is achieved, and accidental collision of vehicles to guardrails is avoided as much as possible.
A method of assembly comprising the steps of:
the method comprises the following steps: connecting a connecting screw rod 15 on the rear protective component 7 and the guardrail main body 6 with a connecting threaded sleeve 16 on the connecting semi-ring 5 in a threaded manner;
step two: the first fixing block 22 on one side of the vertical pressing plate 21 passes through the second buffer spring 23 and the rectangular slot 12 and then is rotatably connected with the two rotating rods 25, and the other two rotating rods 25 are rotatably connected with the second fixing block 26;
step three: connecting the fixing plate 27 at one side of the second fixing block 26 with the rear protection assembly 7 through a fourth buffer spring 28, keeping the puncture needle 29 at one side of the fixing plate 27 aligned with the middle vent hole 33, fixing two ends of the fourth buffer spring 28 to form an assembly main body, and transporting the assembly main body to a construction site;
step four: forming a fixed vertical pier 1 by pouring concrete, fixing a rear fixing rod 3 in the fixed vertical pier 1, placing a mould before the concrete is not hardened to form a longitudinal sliding groove 20, embedding a front fixing rod 2 into the fixed vertical pier 1 in a sliding manner, and pouring the concrete at the sliding-in position to be hardened so that the front fixing rod 2 slides in the fixed vertical pier 1;
step five: the telescopic sleeve 17 and the telescopic middle rod 18 are respectively fixed with the rear fixing rod 3 and the front fixing rod 2, and the first buffer spring 19 is sleeved outside the telescopic middle rod 18 and fixed before the telescopic middle rod 18 and the front fixing rod 2 are fixed;
step six: and sleeving the connecting semi-ring 5 fixed with the connecting threaded sleeve 16 and the connecting semi-ring 5 not fixed with the connecting threaded sleeve 16 in the connecting ring grooves 4 of the front fixing rod 2 and the rear fixing rod 3, and fixing through bolts to finish assembly.
The working principle is as follows: connecting a connecting screw rod 15 on the rear protective component 7 and the guardrail main body 6 with a connecting threaded sleeve 16 on the connecting semi-ring 5 in a threaded manner; the first fixing block 22 on one side of the vertical pressing plate 21 passes through the second buffer spring 23 and the rectangular slot 12 and then is rotatably connected with the two rotating rods 25, and the other two rotating rods 25 are rotatably connected with the second fixing block 26; connecting the fixing plate 27 at one side of the second fixing block 26 with the rear protection assembly 7 through a fourth buffer spring 28, keeping the puncture needle 29 at one side of the fixing plate 27 aligned with the middle vent hole 33, fixing two ends of the fourth buffer spring 28 to form an assembly main body, and transporting the assembly main body to a construction site; forming a fixed vertical pier 1 by pouring concrete, fixing a rear fixing rod 3 in the fixed vertical pier 1, placing a mould before the concrete is not hardened to form a longitudinal sliding groove 20, embedding a front fixing rod 2 into the fixed vertical pier 1 in a sliding manner, and pouring the concrete at the sliding-in position to be hardened so that the front fixing rod 2 slides in the fixed vertical pier 1; the telescopic sleeve 17 and the telescopic middle rod 18 are respectively fixed with the rear fixing rod 3 and the front fixing rod 2, and the first buffer spring 19 is sleeved outside the telescopic middle rod 18 and fixed before the telescopic middle rod 18 and the front fixing rod 2 are fixed; and sleeving the connecting semi-ring 5 fixed with the connecting threaded sleeve 16 and the connecting semi-ring 5 not fixed with the connecting threaded sleeve 16 in the connecting ring grooves 4 of the front fixing rod 2 and the rear fixing rod 3, and fixing through bolts to finish assembly. When the vehicle bumps the guardrail when the steel bridge is put into use, the vehicle has an action force on the vertical pressing plate 21, the vertical pressing plate 21 is pushed to move towards the outside, and the rotating rod 25, the second buffer spring 23, the third buffer spring 24 and the fourth buffer spring 28 respectively have a certain buffering action on the vehicle and give a certain reaction time of a subsequent emergency treatment structure. The vehicle lasts there is the effort to vertical clamp plate 21, collision guardrail main part 6 and back protection subassembly 7 warp even, vertical clamp plate 21 receives the effort to slide to back protection subassembly 7 side, dwang 25, second buffer spring 23, the vehicle is according to old effort behind third buffer spring 24 and the buffering of fourth buffer spring 28, can promote pjncture needle 29 along bleeder vent 33 penetrate in the middle cavity 31 of protecting sheathing 30, and puncture gasbag 32, fire control gas reveals to middle cavity 31 in from gasbag 32 in the gasbag 32, and spill through bleeder vent 33, carry out urgent fire control to the collision position of vehicle, reduce the collision position friction too big, the heat is too high or the danger that mechanical device started a fire and brings.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an assembled guardrail for steel bridge roof beam, includes fixed founding mound (1), its characterized in that: the fixed vertical pier is characterized in that two fixed vertical piers (1) are arranged, rear fixing rods (3) are fixedly connected to the rear portion of the upper end of each fixed vertical pier (1), front fixing rods (2) are arranged at the front portion of the upper end of each fixed vertical pier (1), a rear protection component (7) is arranged between the two rear fixing rods (3), a guardrail main body (6) is arranged between the two front fixing rods (2), the guardrail main body (6) comprises a middle guardrail plate (9), a plurality of rectangular slotted holes (12) are formed in the middle guardrail plate (9), a vertical pressing plate (21) is arranged at one end of the middle guardrail plate (9) along the front end of each rectangular slotted hole (12), a first fixing block (22) is arranged inside each rectangular slotted hole (12), the first fixing block (22) is connected with the middle guardrail plate (9) in a sliding mode, and the first fixing block (22) is fixedly connected with the vertical pressing plate (21, rear protection subassembly (7) is including protecting sheathing (30), the front end of protecting sheathing (30) is provided with fixed plate (27) along the rear end of rectangle slotted hole (12), one side that fixed plate (27) are close to protecting sheathing (30) is provided with pjncture needle (29), pjncture needle (29) are connected fixedly with fixed plate (27), one side that protecting sheathing (30) were kept away from in fixed plate (27) is provided with second fixed block (26), second fixed block (26) and fixed plate (27) fixed connection, be provided with dwang (25) between second fixed block (26) and first fixed block (22), dwang (25) rotate with second fixed block (26) and first fixed block (22) respectively and be connected, be provided with bleeder vent (33) on the terminal surface that protecting sheathing (30) are close to pjncture needle (29), pjncture needle (29) correspond the diameter of bleeder vent (33) is greater than the diameter of pjncture needle (29), the safety helmet is characterized in that a middle cavity (31) is arranged inside the protective shell (30), and an airbag (32) is arranged inside the middle cavity (31).
2. The fabricated guardrail for a steel bridge girder according to claim 1, wherein: the telescopic vertical pier is characterized in that a telescopic middle rod (18) is fixedly connected to the lower end of the rear end of the front fixing rod (2), a telescopic sleeve (17) is fixedly connected to the lower end of the front end of the rear fixing rod (3), the telescopic sleeve (17) is telescopically connected with the telescopic middle rod (18), a first buffer spring (19) is arranged between the telescopic sleeve (17) and the front fixing rod (2) along the outer side of the telescopic middle rod (18), two ends of the first buffer spring (19) are fixed with the telescopic sleeve (17) and the front fixing rod (2) respectively, a vertical sliding groove (20) is formed in the upper end face of the fixed vertical pier (1) along the lower end of the front fixing rod (2), and the front fixing rod (2) slides along the vertical sliding groove (20).
3. The fabricated guardrail for a steel bridge girder according to claim 1, wherein: be provided with second buffer spring (23) along the outside of first fixed block (22) between middle guardrail board (9) and vertical clamp plate (21), the both ends of second buffer spring (23) are fixed with middle guardrail board (9) and vertical clamp plate (21) respectively, the upper and lower both ends of both sides all are provided with third buffer spring (24) between guardrail main part (6) and back protection component (7), and the both ends of third buffer spring (24) are fixed with guardrail main part (6) and back protection component (7) respectively, the upper and lower both ends of both sides are provided with fourth buffer spring (28) between protecting sheathing (30) and fixed plate (27), and the both ends of fourth buffer spring (28) are fixed with protecting sheathing (30) and fixed plate (27) respectively.
4. The fabricated guardrail for a steel bridge girder according to claim 1, wherein: all be provided with on the lateral surface of preceding dead lever (2) and back dead lever (3) and connect annular (4), connect annular (4) and respectively be provided with two on preceding dead lever (2) and back dead lever (3), preceding dead lever (2) and back dead lever (3) all are connected through connecting semi-ring (5) with guardrail main part (6) and back protection component (7), connect semi-ring (5) internal diameter and the diameter of being connected annular (4) the same, two connect behind semi-ring (5) pass and connect annular (4) through bolt fastening, inboard the centre fixedly connected with connecting thread sleeve pipe (16) of semi-ring (5).
5. The fabricated guardrail for a steel bridge girder according to claim 4, wherein: the guardrail is characterized in that vertical guardrail bars (13) are fixedly connected to two sides of the middle guardrail plate (9) on the guardrail body (6), and upper and lower ends between the vertical guardrail bars (13) are fixedly connected with upper guardrail bars (8).
6. The fabricated guardrail for a steel bridge girder according to claim 5, wherein: the guardrail comprises a guardrail main body (6), wherein connecting plates (14) are fixedly connected to the middles of two sides of a vertical guardrail bar (13), connecting screws (15) are fixedly connected to the middles of the outer sides of the connecting plates (14), and the connecting screws (15) are in threaded connection with connecting threaded sleeves (16).
7. The fabricated guardrail for a steel bridge girder according to claim 5, wherein: go up the centre in the guardrail bar (8) outside and the middle guardrail board (9) outside is along three all be provided with crashproof sheath (10) between rectangular slotted hole (12), the lateral surface paste of crashproof sheath (10) is connected with reflection of light strip (11).
8. An assembling method is realized on the basis of the assembled guardrail for the steel bridge girder of any one of claims 1 to 7, and is characterized by comprising the following steps of:
the method comprises the following steps: connecting the rear protective component (7) and a connecting screw rod (15) on the guardrail main body (6) with a connecting threaded sleeve (16) on the connecting semi-ring (5) in a threaded manner;
step two: a first fixing block (22) on one side of the vertical pressing plate (21) penetrates through a second buffer spring (23) and the rectangular groove hole (12) and then is rotatably connected with the two rotating rods (25), and the other two rotating rods (25) are rotatably connected with a second fixing block (26);
step three: connecting the fixing plate (27) at one side of the second fixing block (26) with the rear protection assembly (7) through a fourth buffer spring (28), keeping the puncture needle (29) at one side of the fixing plate (27) aligned with the middle vent hole (33), fixing two ends of the fourth buffer spring (28) to form an assembly main body, and transporting the assembly main body to a construction site;
step four: forming a fixed vertical pier (1) by pouring concrete, fixing a rear fixing rod (3) in the fixed vertical pier (1), placing a mold before the concrete is not hardened to form a longitudinal sliding chute (20), embedding a front fixing rod (2) into the fixed vertical pier (1) in a sliding manner, hardening the concrete at the sliding position, and enabling the front fixing rod (2) to slide in the fixed vertical pier (1);
step five: the telescopic sleeve (17) and the telescopic middle rod (18) are respectively fixed with the rear fixing rod (3) and the front fixing rod (2), and the first buffer spring (19) is sleeved outside the telescopic middle rod (18) and fixed before the telescopic middle rod (18) and the front fixing rod (2) are fixed;
step six: and sleeving the connecting semi-ring (5) fixed with the connecting threaded sleeve (16) and the connecting semi-ring (5) not fixed with the connecting threaded sleeve (16) in the connecting ring grooves (4) of the front fixing rod (2) and the rear fixing rod (3), and fixing through bolts to finish assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354920.3A CN113062213A (en) | 2021-03-31 | 2021-03-31 | Assembly type guardrail for steel bridge and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354920.3A CN113062213A (en) | 2021-03-31 | 2021-03-31 | Assembly type guardrail for steel bridge and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113062213A true CN113062213A (en) | 2021-07-02 |
Family
ID=76565276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110354920.3A Withdrawn CN113062213A (en) | 2021-03-31 | 2021-03-31 | Assembly type guardrail for steel bridge and assembly method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113062213A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203890916U (en) * | 2014-04-02 | 2014-10-22 | 周冠知 | Road guard bar |
| CN207672409U (en) * | 2017-12-14 | 2018-07-31 | 广西交通科学研究院有限公司 | Highway bridge anticollision device, collision-prevention device |
| KR101902839B1 (en) * | 2018-03-06 | 2018-10-01 | 주식회사 제이에스컴 | Crash cushion apparatus |
| CN208703007U (en) * | 2018-08-17 | 2019-04-05 | 广州伽罗信息科技有限公司 | Anticollision mechanism for monitoring alarm equipment |
| CN210529581U (en) * | 2019-09-03 | 2020-05-15 | 翟娇 | Anti-collision pier for highway construction |
| CN211079912U (en) * | 2019-10-12 | 2020-07-24 | 刘亚平 | Anti-collision telescopic device for highway bridge |
| CN211113370U (en) * | 2019-09-27 | 2020-07-28 | 中天建设集团有限公司 | Ultrahigh vehicle collision bridge protection device |
| CN211571367U (en) * | 2019-10-23 | 2020-09-25 | 青岛交建集团有限公司 | Public road bridge roof beam buffer stop |
-
2021
- 2021-03-31 CN CN202110354920.3A patent/CN113062213A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203890916U (en) * | 2014-04-02 | 2014-10-22 | 周冠知 | Road guard bar |
| CN207672409U (en) * | 2017-12-14 | 2018-07-31 | 广西交通科学研究院有限公司 | Highway bridge anticollision device, collision-prevention device |
| KR101902839B1 (en) * | 2018-03-06 | 2018-10-01 | 주식회사 제이에스컴 | Crash cushion apparatus |
| CN208703007U (en) * | 2018-08-17 | 2019-04-05 | 广州伽罗信息科技有限公司 | Anticollision mechanism for monitoring alarm equipment |
| CN210529581U (en) * | 2019-09-03 | 2020-05-15 | 翟娇 | Anti-collision pier for highway construction |
| CN211113370U (en) * | 2019-09-27 | 2020-07-28 | 中天建设集团有限公司 | Ultrahigh vehicle collision bridge protection device |
| CN211079912U (en) * | 2019-10-12 | 2020-07-24 | 刘亚平 | Anti-collision telescopic device for highway bridge |
| CN211571367U (en) * | 2019-10-23 | 2020-09-25 | 青岛交建集团有限公司 | Public road bridge roof beam buffer stop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104724015B (en) | Fluid pressure type active anti-collision device | |
| CN110106784A (en) | A kind of bridge guardrail structure | |
| CN206306979U (en) | A kind of motor passenger vehicle anticollision pilot beam | |
| CN211498604U (en) | Municipal administration bridge limit for height device | |
| CN209907192U (en) | Bridge buffer stop | |
| CN113062213A (en) | Assembly type guardrail for steel bridge and assembly method thereof | |
| CN104816695A (en) | Air pressure type active anti-collision device | |
| CN211200203U (en) | Collision-resistant, rollover-preventing and crash-preventing highway guardrail device | |
| CN211549076U (en) | A rail guard for road construction | |
| CN211735195U (en) | Bridge pier column anti-collision protection device | |
| CN108487136B (en) | Retractable energy-absorbing road guardrail | |
| CN207670354U (en) | Bumper beam assembly of vehicle | |
| CN106758991B (en) | Intercommunication subchannel anticollision barrier | |
| CN207582302U (en) | Collison fence for bridge | |
| CN211735194U (en) | Safety protection facility for road pier | |
| CN207029108U (en) | A kind of vehicle hits beam assembly and collision prevention of vehicle structure | |
| CN213267516U (en) | Bridge buffer stop based on bridge security performance | |
| CN2823319Y (en) | Detachable sign rod for highway | |
| CN212103804U (en) | Transition connection structure for road crash pad | |
| CN211769929U (en) | Anti-swing anti-collision device for building engineering | |
| CN112323687A (en) | Anti-collision guardrail structure | |
| CN213952053U (en) | Town road guardrail | |
| CN215714818U (en) | Road anti-collision column with buffering function | |
| CN212828232U (en) | Automobile anti-collision steel beam | |
| CN219298080U (en) | Detachable municipal road flexible anti-collision isolation guardrail with light blocking and brightening effects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210702 |