CN215104660U

CN215104660U - Bridge prefabricated guardrail

Info

Publication number: CN215104660U
Application number: CN202120942241.3U
Authority: CN
Inventors: 庞厚利; 杨阳; 邹小刚; 蒲键; 黄倩峰; 陈翔
Original assignee: Zhejiang Ouyue Jiaojian Technology Co Ltd
Current assignee: Zhejiang Ouyue Jiaojian Technology Co Ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-10
Anticipated expiration: 2031-05-06

Abstract

The application relates to the field of traffic engineering, in particular to a bridge prefabricated guardrail, which comprises a base, wherein a guardrail body is arranged on the base, a fixed seat positioned on one side of the guardrail body is fixedly arranged on the base, a piston rod is arranged in the fixed seat in a sliding manner along the length direction of the piston rod, and one end of the piston rod extends out of the fixed seat and is fixed with the guardrail body; the piston rod is characterized in that a buffer spring which stretches along the sliding direction of the piston rod is arranged in the fixing seat, one end of the buffer spring is fixed with the piston rod, and the other end of the buffer spring is fixed with the inner wall of the fixing seat. This application has the effect that can play crashproof buffering protection to the vehicle.

Description

Bridge prefabricated guardrail

Technical Field

The utility model belongs to the technical field of traffic engineering and specifically relates to a bridge prefabricated guardrail.

Background

Along with the high-speed development of economy in China, the rate of vehicles owned by all people is increased day by day, the capital construction in China is more and more perfect, the length of a highway and the number of bridges are increased day by day, the requirement and the requirement on the bridge guardrail are higher and higher at the moment, the cast-in-place construction speed of the concrete guardrail is low, and a large amount of dust is generated to pollute the environment.

Chinese publication No. CN210712549U discloses a bridge guardrail prefabricated unit and a bridge, including a guardrail wall, an embedded part is embedded in the guardrail wall in advance, the inner side of the guardrail wall is concave, the embedded part extends to the bottom of the guardrail wall, and a mounting hole for inserting the embedded part is provided on the bridge floor.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the road that the vehicle rushed out the bridge collided to above-mentioned bridge railing, because above-mentioned bridge railing's anticollision effect is relatively poor, bridge railing is difficult to play the effect of buffering to the vehicle that takes place the striking, and the vehicle will receive great impact force after striking the guardrail.

SUMMERY OF THE UTILITY MODEL

In order to improve the relatively poor problem of beam guardrail anticollision buffering effect, this application provides a bridge prefabrication guardrail.

The application provides a pair of bridge prefabrication guardrail adopts following technical scheme:

a bridge prefabricated guardrail comprises a base, wherein a guardrail body is arranged on the base, a fixed seat positioned on one side of the guardrail body is fixedly arranged on the base, a piston rod is arranged in the fixed seat in a sliding manner along the length direction of the piston rod, and one end of the piston rod extends out of the fixed seat and is fixed with the guardrail body; the piston rod is characterized in that a buffer spring which stretches along the sliding direction of the piston rod is arranged in the fixing seat, one end of the buffer spring is fixed with the piston rod, and the other end of the buffer spring is fixed with the inner wall of the fixing seat.

Through adopting above-mentioned technical scheme, when the vehicle breaks away from the road and hits the guardrail, hit the guardrail body earlier, the piston rod atress is retracted after this moment, and piston rod and fixing base sliding connection, the piston rod promotes buffer spring and compresses gradually this moment, the piston rod receives the reverse elasticity that buffer spring provided simultaneously, the more elasticity that buffer spring provided is big more to the distance that the piston rod moves back, when the piston rod receives the impact force of vehicle and equals buffer spring and provide the elasticity of piston rod, the vehicle stops advancing, through the guardrail body, the cooperation between piston rod and the fixing base plays the effect of buffering to the vehicle jointly, the reverse impact force that receives when reducing the vehicle striking guardrail body, when the piston rod reaches the maximum compression position, just can force vehicle stop motion this moment, the prevention vehicle rushes out the bridge.

Preferably, the one end that the guardrail body was kept away from to the piston rod is provided with the slip dish that is located the fixing base, the laminating of slip dish lateral wall and fixing base inside wall, just the slip dish slides and sets up in the fixing base.

Through adopting above-mentioned technical scheme, the laminating of slip dish lateral wall and fixing base inside wall makes the slip of slip dish in the fixing base more stable to the shake when can reduce the piston rod compression makes the smooth and easy stability more of the slip of piston rod, can also guarantee the stability when buffer spring is flexible simultaneously.

Preferably, the piston rod is sleeved with a dustproof sleeve located in the fixed seat, the dustproof sleeve is located on one side, away from the buffer spring, of the sliding disc, and the dustproof sleeve covers one side opening of the fixed seat.

Through adopting above-mentioned technical scheme, the dirt proof boot has prevented in the dust gets into the fixing base from the opening part that the fixing base supplied the piston rod to pass through to can effectively reduce the harmful effects that external dust and foreign matter led to the fact to the inside slip dish of fixing base, to the inside dirt-proof effect that has played of fixing base, prolonged the life of fixing base and slip dish.

Preferably, a reinforcing block is arranged at the joint of the piston rod and the guardrail body, one end of the reinforcing block is fixed with the piston rod, and the other end of the reinforcing block is fixed with the guardrail body.

Through adopting above-mentioned technical scheme, the reinforcing block has increased the structural strength of guardrail body and piston rod junction, makes the junction of guardrail body and piston rod can bear bigger power to when can preventing the vehicle striking guardrail body, the cracked condition takes place for the junction of guardrail body and piston rod, has improved the reliability of both junctions.

Preferably, a step is arranged on the side wall, away from the fixed seat, of the base, and the step extends from top to bottom towards the direction gradually away from the guardrail body.

Through adopting above-mentioned technical scheme, when the vehicle striking guardrail body, support the tire of vehicle through the step, disperseed the impact force of vehicle, reduced the impact force of vehicle to the guardrail body, when the vehicle leads to the time of going up the step by force because of the impact force is too big, the partial kinetic energy of vehicle can be dispersed because of the height of step turns into the gravitional force energy consumption, and the setting of step can further strengthen the braking effect to the vehicle.

Preferably, a cushion rubber pad is fixed on the outer surface of the step and covers the upper surface of the step.

Through adopting above-mentioned technical scheme, rubber cushion pad has not only increased the frictional force on step surface to can be better play the effect of braking to the vehicle, and when the vehicle striking rubber cushion pad, can also further improve the cushioning effect to the vehicle through rubber cushion pad.

Preferably, the guardrail body is provided with the mounting panel on deviating from the lateral wall of fixing base, mounting panel and base fixed connection.

Through adopting above-mentioned technical scheme, the mounting panel can further improve the stability of guardrail body for the guardrail body is difficult for taking place the displacement in daily use, has increased the stability of guardrail body.

Preferably, the guardrail body is fixedly provided with an anti-collision spring which stretches along the sliding direction of the piston rod, and the other end of the anti-collision spring is fixedly connected with the side wall of the guardrail body facing the fixed seat.

Through adopting above-mentioned technical scheme, after the vehicle crashed the mounting panel, anticollision spring compression provides reverse elasticity to the guardrail body to reduce the kinetic energy of vehicle, anticollision spring has further strengthened the buffering effect of guardrail body, has strengthened the security of equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the vehicle breaks away from the road and hits the guardrail, play the effect of buffering to the vehicle jointly through the cooperation between guardrail body, piston rod and fixing base, the reverse impact force that receives when reducing the vehicle striking guardrail body, when the piston rod reaches the maximum compression position, just can force vehicle stop motion this moment, prevents that the vehicle from rushing out the bridge.

2. When a vehicle impacts the guardrail body, the step props against the tire of the vehicle to disperse the impact force of the vehicle; when the vehicle is forced to go up the steps due to overlarge impact force, partial kinetic energy of the vehicle is converted into gravitational potential energy consumption due to the height of the steps and is dissipated, and the braking effect on the vehicle is further enhanced by the steps.

Drawings

Fig. 1 is an overall view of an embodiment of the present application in actual use.

Fig. 2 is an overall view of an embodiment of the present application.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Description of reference numerals: 1. a base; 11. a step; 12. a cushion rubber pad; 2. a guardrail body; 21. a reinforcing block; 22. mounting a plate; 3. a fixed seat; 31. a piston rod; 32. a sliding disk; 33. a dust-proof sleeve; 34. an anti-collision spring; 35. a buffer spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses bridge prefabricated guardrail. Referring to fig. 1 and 2, a prefabricated guardrail of bridge, including base 1, the slip is provided with guardrail body 2 of the 1 upper surface of perpendicular to base on base 1, guardrail body 2's length direction is the same with base 1's length direction, and guardrail body 2 slides along base 1's width direction, base 1's last fixed surface is connected with the fixing base 3 that is located 2 one sides of guardrail body, fixing base 3 is the level and places, and fixing base 3's length direction perpendicular guardrail body 2's length direction, it is provided with piston rod 31 to slide along self length direction in the fixing base 3, piston rod 31 stretches out and 2 fixed connection with guardrail body towards guardrail body 2's one end from fixing base 3, accessible railing is connected between the adjacent guardrail body 2 when in-service use.

Referring to fig. 2 and 3, one end fixedly connected with that the piston rod 31 is far away from the guardrail body 2 is located the sliding plate 32 of the fixing base 3, the piston rod 31 is connected on the central shaft of the sliding plate 32, the outer side wall of the sliding plate 32 is attached to the inner side wall of the fixing base 3, the sliding plate 32 is arranged in the fixing base 3 in a sliding mode, and the sliding plate 32 slides in the fixing base 3 along with the piston rod 31. Be provided with in the fixing base 3 along the flexible buffer spring 35 of 31 slip directions of piston rod, buffer spring 35 is located the one side that slip dish 32 deviates from guardrail body 2, and buffer spring 35 one end is fixed with the center pin of the slip dish 32 on the piston rod 31, and the buffer spring 35 other end is fixed with the center pin of fixing base 3 keep away from guardrail body 2's inner wall.

Referring to fig. 2 and 3, the piston rod 31 is fixedly sleeved with a dust-proof sleeve 33 located in the fixing seat 3, one end of the dust-proof sleeve 33 is attached to the outer side wall of the piston rod 31, the dust-proof sleeve 33 is located on one side of the sliding disc 32 departing from the buffer spring 35, and the dust-proof sleeve 33 covers the opening of the fixing seat 3, through which the piston rod 31 penetrates out, on one side.

Referring to fig. 2 and 3, guardrail body 2 is towards fixedly connected with two anticollision springs 34 that the direction of sliding is flexible along piston rod 31 on the lateral wall of fixing base 3, anticollision spring 34 other end and fixing base 3 face towards guardrail body 2's lateral wall fixed connection, and two anticollision springs 34 use the center pin of piston rod 31 to be the symmetry axis and distribute from top to bottom.

Referring to fig. 2 and 3, a reinforcing block 21 is fixedly connected to a joint of the piston rod 31 and the guardrail body 2, the reinforcing block 21 is circumferentially fixed to one end of the piston rod 31 in a surrounding manner, one end of the reinforcing block 21 is fixed to the piston rod 31, and the other end of the reinforcing block 21 is fixed to the guardrail body 2. Fixedly connected with mounting panel 22 on the lateral wall that guardrail body 2 deviates from fixing base 3, mounting panel 22's diapire and 1 fixed connection of base, guardrail body 2's diapire and the laminating of base 1, guardrail body 2 supports tightly each other with mounting panel 22 under anticollision spring 34's effect, hit mounting panel 22 when the vehicle and make the mounting panel 22 fracture back, guardrail body 2 will receive the impact force backward slip of vehicle, and realized the effect of buffering under anticollision spring 34 and buffer spring 35's combined action.

Referring to fig. 2 and 3, the base 1 is provided with the step 11 on the lateral wall far away from the fixing base 3, and the step 11 extends from the top down towards the direction of keeping away from the guardrail body 2 gradually, and the length direction of step 11 is parallel with the length direction of guardrail body 2 and is parallel equidistance setting between the adjacent step 11. Cushion rubber pads 12 are fixedly laid on the upper surface of the step 11 and the outer surface back to the guardrail body 2, and the cushion rubber pads 12 completely cover the outer surface of the step 11.

The implementation principle of the prefabricated guardrail of bridge of this application embodiment does: after the guardrail finishes installing on the bridge, when the vehicle strikes the guardrail, the vehicle will hit mounting panel 22 earlier, if the vehicle impact force is great will make mounting panel 22 fracture, the impact force of vehicle will make guardrail body 2 retreat this moment, and the front tyre of vehicle conflicts with step 11 this moment, make the impact force dispersion of part vehicle to step 11 on, the impact force that guardrail body 2 received has been reduced, and the vehicle is because of the too big impact force leads to going up step 11 by force, the partial kinetic energy of vehicle can be turned into the gravitational potential energy consumption and dispel because of step 11's height, also reduced the reaction force of guardrail body 2 to the vehicle when reducing the impact force that the vehicle led to the fact guardrail body 2, alleviate the injury that the people in the vehicle received. When a vehicle collides with the guardrail body 2, the anti-collision spring 34 and the buffer spring 35 are simultaneously stressed and contracted, the piston rod 31 is stressed to slide towards the bottom wall of the fixed seat 3, the anti-collision spring 34 provides an elastic force for the guardrail body 2 while being contracted, the buffer spring 35 provides an elastic force for the sliding disc 32 while being contracted, the sliding disc 32 is stressed to provide an acting force for the piston rod 31, at the moment, the two forces simultaneously face the vehicle and consume the kinetic energy of the vehicle, along with the continuous advance of the vehicle, the elastic force of the anti-collision spring 34 and the elastic force of the buffer spring 35 are continuously increased, when the elastic force of the anti-collision spring 34 and the elastic force of the buffer spring 35 are increased to be equal to the kinetic energy of the vehicle after being reduced, the vehicle stops moving, the buffer distance of the vehicle is increased, the buffer effect is enhanced, the instantaneous impact force of the vehicle on the guardrail is reduced, and the instantaneous reaction force of the guardrail on the vehicle is reduced, the injury to people in the vehicle is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bridge prefabricated guardrail, including base (1), its characterized in that: the guardrail comprises a base (1), a guardrail body (2) is arranged on the base (1), a fixed seat (3) positioned on one side of the guardrail body (2) is fixedly arranged on the base (1), a piston rod (31) is arranged in the fixed seat (3) in a sliding mode along the length direction of the fixed seat, and one end of the piston rod (31) extends out of the fixed seat (3) and is fixed with the guardrail body (2); the buffer spring (35) stretching along the sliding direction of the piston rod (31) is arranged in the fixing seat (3), one end of the buffer spring (35) is fixed with the piston rod (31), and the other end of the buffer spring (35) is fixed with the inner wall of the fixing seat (3).

2. The prefabricated guardrail of claim 1, which is characterized in that: one end of the piston rod (31) far away from the guardrail body (2) is provided with a sliding disc (32) located in the fixing seat (3), the outer side wall of the sliding disc (32) is attached to the inner side wall of the fixing seat (3), and the sliding disc (32) is arranged in the fixing seat (3) in a sliding mode.

3. The prefabricated guardrail of claim 1, which is characterized in that: the dustproof sleeve (33) located in the fixing seat (3) is sleeved on the piston rod (31), the dustproof sleeve (33) is located on one side, deviating from the buffer spring (35), of the sliding disc (32), and the dustproof sleeve (33) covers one side of the fixing seat (3) in an opening mode.

4. The prefabricated guardrail of claim 1, which is characterized in that: the guardrail is characterized in that a reinforcing block (21) is arranged at the joint of the piston rod (31) and the guardrail body (2), one end of the reinforcing block (21) is fixed to the piston rod (31), and the other end of the reinforcing block (21) is fixed to the guardrail body (2).

5. The prefabricated guardrail of claim 1, which is characterized in that: the guardrail is characterized in that a step (11) is arranged on the side wall, far away from the fixed seat (3), of the base (1), and the step (11) extends from top to bottom towards the direction, far away from the guardrail body (2) gradually.

6. The prefabricated guardrail for bridges of claim 5, wherein: and a cushion rubber pad (12) is fixed on the outer surface of the step (11), and the cushion rubber pad (12) covers the upper surface of the step (11).

7. The prefabricated guardrail of claim 1, which is characterized in that: the guardrail comprises a guardrail body (2), and is characterized in that a mounting plate (22) is arranged on the side wall of the guardrail body (2) deviating from the fixing seat (3), the mounting plate (22) is fixedly connected with a base (1), and the guardrail body (2) is tightly supported on the mounting plate (22).

8. The prefabricated guardrail of claim 1, which is characterized in that: the guardrail is characterized in that an anti-collision spring (34) stretching along the sliding direction of the piston rod (31) is fixedly arranged on the guardrail body (2), and the other end of the anti-collision spring (34) is fixedly connected with the side wall of the fixed seat (3) facing the guardrail body (2).