Assembly type multistage energy dissipation highway crash barrier

Abstract

The utility model relates to a highway crash barrier technical field especially is involved in a kind of assembled multistage energy dissipation highway crash barrier.The utility model provides such a kind of assembled multistage energy dissipation highway crash barrier, including support rod, chassis and fixed seat, support rod bottom is fixedly connected with chassis, two fixed seats are detachably provided on support rod, further include hydraulic damper, fixed screw rod, nut and corrugated beam steel, two hydraulic dampers are provided in the front and back sides of fixed seat, fixed screw rod is fixedly connected on hydraulic damper, and two fixed screw rods of same side are commonly slidably provided with corrugated beam steel.Through the three-stage energy-absorbing design of buffer bucket, corrugated beam steel and hydraulic damper, energy absorption tasks can be reasonably distributed according to the size of collision energy, so as to more efficiently and smoothly dissipate collision energy, and maximize the harm to passengers and vehicles.

Description

Technical Field

[0001] This utility model relates to the field of highway crash barrier technology, and in particular to a prefabricated multi-stage energy dissipation highway crash barrier. Background Technology

[0002] Highway crash barriers (also known as road safety barriers or traffic barriers) are traffic safety facilities installed on highways, expressways, bridges, tunnel entrances and exits, sharp bends, steep slopes, central medians, and dangerous areas on the roadside. Their main function is to prevent out-of-control vehicles from deviating from their normal driving path, reduce the consequences of collisions, and protect the safety of drivers and passengers.

[0003] Patent CN219386115U, in particular, relates to a highway crash barrier, which includes an installation rod, abutment plate, post, and shock-absorbing steel plate. The installation rod is fixed to one side of the highway. The abutment plate is located on the side of the installation rod away from the highway and is fixed to the installation rod. Two L-shaped overlapping frames are connected to the side of the abutment plate closest to the highway. The L-shaped overlapping frames and the abutment plate form an installation groove for embedding one end of the shock-absorbing steel plate. One end of the long side of the post is hinged to the installation rod, and the hinge axis is set horizontally. The two ends of the long side of the shock-absorbing steel plate are respectively attached to the L-shaped overlapping frames, and the shock-absorbing steel plate protrudes towards the post. Although the aforementioned patent allows the pillar to rotate outward along the hinge axis and compress the shock-absorbing steel plate when a vehicle impacts the pillar, causing the shock-absorbing steel plate to deform and extend to both ends, thereby absorbing some of the impact kinetic energy and buffering the vehicle, thus reducing the impact injury to the vehicle and its occupants, its buffering mechanism mainly relies on the deformation of a single level of shock-absorbing steel plate and does not have a multi-stage energy dissipation system. It is difficult to dissipate the impact force efficiently and smoothly according to different collision energy gradients, thus it is insufficient in minimizing the injury to occupants and the vehicle.

[0004] Therefore, a prefabricated multi-stage energy dissipation highway crash barrier is needed. Utility Model Content

[0005] In order to overcome the shortcomings of existing patents, which mainly rely on the deformation of a single level of shock-absorbing steel plate and do not have a multi-level energy dissipation system, it is difficult to dissipate the impact force efficiently and smoothly according to different collision energy gradients. Therefore, they are insufficient in minimizing the damage to occupants and vehicles. This utility model provides a prefabricated multi-level energy dissipation highway crash barrier.

[0006] This utility model provides the following technical solution: a prefabricated multi-stage energy dissipation highway crash barrier, including a support rod, a chassis, a fixing seat, and an installation structure. The chassis is fixedly connected to the bottom of the support rod. Two fixing seats are detachably installed on the support rod. Installation structures are provided on both the left and right sides of the fixing seats. The installation structures are used to install the fixing seats. It also includes a hydraulic damper, a fixing screw, a nut, a corrugated beam steel, a buffer tank, and a feeding port. Two hydraulic dampers are provided on the front and rear sides of the fixing seat. A fixing screw is fixedly connected to the hydraulic damper. Corrugated beam steel is slidably installed on the two fixing screws on the same side. A nut is screwed on the end of the fixing screw away from the hydraulic damper. The nut is in close contact with the corrugated beam steel. A buffer tank is slidably installed on the support rod. The buffer tank is located between the two fixing seats. A feeding port is provided on the top of the buffer tank.

[0007] To further explain, the mounting structure includes mounting screws, a support rod with multiple threaded holes, and a mounting screw inserted into the fixing seat, with the mounting screw screw screwed into the corresponding threaded hole.

[0008] Further explanation: It also includes a sliding rod, a conical block, a sliding plate, a first elastic element, a slip ring, a top block, and a second elastic element. The support rod has a groove inside, and a sliding rod is slidably installed inside the support rod. A conical block is fixedly connected to the bottom of the sliding rod, and a sliding plate is fixedly connected to the top of the sliding rod. The sliding plate slides in the groove. The upper end of the sliding rod is fitted with a first elastic element, and both ends of the first elastic element are connected to the sliding plate and the support rod, respectively. A slip ring is slidably installed on the outside of the support rod, and the bottom of the slip ring contacts the top of the sliding plate. The chassis has a guide groove inside, and two top blocks are slidably installed inside the guide groove. The conical block can compress the top blocks, and two second elastic elements are connected between the top blocks and the chassis.

[0009] To further explain, it also includes a sealing cap, with a sealing cap on the feed port.

[0010] To further explain, it also includes reflective rings; two reflective rings are installed on the outside of the buffer tank.

[0011] To further explain, the buffer tank is made of high-density polyethylene or polyurethane.

[0012] Compared with the prior art, this utility model provides a prefabricated multi-stage energy dissipation highway crash barrier, which has the following beneficial effects: 1. Through the three-stage energy absorption design of buffer tank, corrugated beam steel and hydraulic damper, the energy absorption task can be reasonably allocated according to the magnitude of the collision energy, so as to dissipate the collision energy more efficiently and smoothly, and minimize the damage to occupants and vehicles.

[0013] 2. By adjusting the installation position of the fixing seat on the support rod, the height requirements of the guardrail can be adapted to different road environments.

[0014] 3. Under the action of gravity, the buffer bucket moves downward and pushes the slip ring downward. The movement of the slip ring causes the slide plate and slide rod to move downward, so that the cone block contacts the top block and squeezes the top block to slide outward, thereby expanding the support area of ​​the chassis to enhance the stability of the device and prevent it from tipping over. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the support rod, fixing seat, and corrugated beam steel of this utility model.

[0017] Figure 3 This is an exploded view of the fixed base, hydraulic damper, and corrugated beam steel of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the support rod, buffer bucket, and reflective ring of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the chassis, slide bar, and top block of this utility model.

[0020] Figure 6 This is an exploded view of the slide bar, conical block, and top block of this utility model.

[0021] The markings in the attached diagram are as follows: 1: Support rod, 2: Chassis, 3: Fixed seat, 4: Hydraulic damper, 5: Fixed screw, 6: Nut, 7: Corrugated beam steel, 8: Buffer tank, 9: Feed port, 10: Threaded hole, 11: Mounting screw, 12: Slide groove, 13: Slide rod, 1301: Conical block, 14: Slide plate, 15: First elastic element, 16: Slip ring, 17: Guide groove, 18: Top block, 19: Second elastic element, 20: Sealing cover, 21: Reflective ring. Detailed Implementation

[0022] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0023] Example 1: A prefabricated multi-stage energy dissipation highway crash barrier, please refer to... Figures 1-6The system includes a support rod 1, a base 2, a fixing seat 3, and an installation structure. The base 2 is fixedly connected to the bottom of the support rod 1. Two fixing seats 3 are detachably mounted on the support rod 1. Installation structures are provided on both the left and right sides of the fixing seats 3. The installation structures are used to install the fixing seats 3. The installation structures include mounting screws 11. The support rod 1 has several threaded holes 10. The mounting screws 11 are inserted into the fixing seats 3 and screwed into the corresponding threaded holes 10. The system also includes a hydraulic damper 4, fixing screws 5, a nut 6, a corrugated beam 7, a buffer tank 8, and a feeding port 9. Two hydraulic dampers 4 are provided on both the front and rear sides of the fixing seat 3. Fixing screws 5 are fixedly connected to the hydraulic dampers 4. The two fixing screws 5 on the same side are slidably mounted on the corrugated beam 7. A nut 6 is screwed onto the end of the fixed screw 5 away from the hydraulic damper 4. The nut 6 is in close contact with the corrugated beam steel 7. A buffer tank 8 is slidably installed on the support rod 1. The diameter of the buffer tank 8 is larger than the distance between the two corrugated beam steels 7. The buffer tank 8 is located between two fixed seats 3. A feeding port 9 is provided on the top of the buffer tank 8. A sealing cap 20 is provided on the feeding port 9 to prevent foreign objects from entering the buffer tank 8. Two reflective rings 21 are provided on the outside of the buffer tank 8. The reflective rings 21 are coated with fluorescent material, which can reflect the headlights of the vehicle and serve as a warning to improve driving safety. The buffer tank 8 is made of high-density polyethylene or polyurethane material. These materials have extremely high toughness, impact resistance and weather resistance. They are not easy to break after multiple deformations, ensuring the reliability of the buffer function and a long service life.

[0024] When installing the corrugated beam steel 7, first determine the installation height of the corrugated beam steel 7 according to the design requirements of the highway. Then, slide the fixing seat 3 along the support rod 1 to the required height position, align the threaded hole 10 on it with the connection part on the support rod 1, insert the installation screw 11, and tighten it so that it is screwed into the corresponding threaded hole 10 in the support rod 1, thereby firmly fixing the fixing seat 3 at the specified height of the support rod 1. By adjusting the installation position of the fixing seat 3 on the support rod 1, it can adapt to the requirements of different road environments for guardrail height. After the fixing seat 3 is installed, connect the corrugated beam steel 7 to the hydraulic dampers 4 on both sides of the fixing seat 3 through the fixing screw 5 to complete the overall assembly. When a vehicle collides, the impact force first hits the buffer tank 8. During the collision, the buffer tank 8 undergoes... The internal filling material is compressed and subjected to friction, further consuming a large amount of collision energy while providing stable resistance, making the vehicle deceleration process smoother and forming the first-level buffer. The collision force is then transferred to the corrugated beam steel 7, which serves as the second-level buffer structure. The corrugated beam steel 7 absorbs part of the impact energy through its own elastic deformation. The hydraulic damper 4, as the third-level energy dissipation device, generates a huge damping force through its internal hydraulic oil via a narrow flow channel when compressed, converting part of the collision kinetic energy into heat energy for dissipation. This achieves damping buffering and further weakens the impact force. Through this three-level energy absorption design, different levels of energy absorption elements can be activated sequentially according to the magnitude of the collision energy, thereby dissipating the collision energy more efficiently and smoothly, minimizing the damage to occupants and the vehicle.

[0025] Example 2: Based on Example 1, please refer to... Figure 2 , Figure 4 , Figure 5 and Figure 6 It also includes a slide rod 13, a conical block 1301, a slide plate 14, a first elastic element 15, a slip ring 16, a top block 18, and a second elastic element 19. The support rod 1 has a groove 12 inside, and the slide rod 13 is slidably arranged inside the support rod 1. The bottom of the slide rod 13 is fixedly connected to the conical block 1301, and the top of the slide rod 13 is fixedly connected to the slide plate 14. The slide plate 14 slides in the groove 12. The upper end of the slide rod 13 is fitted with the first elastic element 15, and the two ends of the first elastic element 15 are respectively connected to the slide plate 14 and the support rod 1. The outside of the support rod 1 is slidably arranged with the slip ring 16. The bottom of the slip ring 16 contacts the top of the slide plate 14. The chassis 2 has a guide groove 17 inside, and two top blocks 18 are slidably arranged inside the guide groove 17. The conical block 1301 can squeeze the top blocks 18. Two second elastic elements 19 are connected between the top blocks 18 and the chassis 2.

[0026] When installing the crash barrier, first pour the filling material into the buffer tank 8 through the filling port 9. Under the action of gravity, the buffer tank 8 moves downward and pushes the slip ring 16 downward. The movement of the slip ring 16 drives the slide plate 14 and the slide rod 13 to move downward, so that the cone block 1301 contacts the top block 18 and squeezes the top block 18 to slide outward, thereby expanding the support area of ​​the chassis 2. After the filling material is added, the chassis 2 is buried underground to enhance the stability of the device and prevent it from tipping over.

[0027] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A prefabricated multi-stage energy-dissipating highway crash barrier, comprising a support rod (1), a chassis (2), a fixing seat (3), and an installation structure, wherein the support rod (1) is fixedly connected to the chassis (2) at its bottom, and two fixing seats (3) are detachably provided on the support rod (1), and installation structures are provided on both the left and right sides of the fixing seats (3), the installation structures being used to install the fixing seats (3), characterized in that: It also includes a hydraulic damper (4), a fixing screw (5), a nut (6), a corrugated beam (7), a buffer tank (8), and a feeding port (9). Two hydraulic dampers (4) are provided on both the front and rear sides of the fixed seat (3). A fixing screw (5) is fixedly connected to the hydraulic damper (4). The two fixing screws (5) on the same side are slidably provided with the corrugated beam (7). A nut (6) is screwed on the end of the fixing screw (5) away from the hydraulic damper (4). The nut (6) is in close contact with the corrugated beam (7). A buffer tank (8) is slidably provided on the support rod (1). The buffer tank (8) is located between the two fixed seats (3). A feeding port (9) is provided on the top of the buffer tank (8).

2. A prefabricated multi-stage energy-dissipating highway crash barrier according to claim 1, characterized in that: The mounting structure includes a mounting screw (11), a support rod (1) with multiple threaded holes (10), a mounting screw (11) inserted into a fixing seat (3), and the mounting screw (11) screwed into the corresponding threaded hole (10).

3. A prefabricated multi-stage energy-dissipating highway crash barrier according to claim 2, characterized in that: It also includes a slide rod (13), a conical block (1301), a sliding plate (14), a first elastic element (15), a slip ring (16), a top block (18), and a second elastic element (19). The support rod (1) has a groove (12) inside, and the slide rod (13) is slidably installed inside the support rod (1). The bottom of the slide rod (13) is fixedly connected to the conical block (1301), and the top of the slide rod (13) is fixedly connected to the sliding plate (14). The sliding plate (14) slides in the groove (12), and the upper end of the slide rod (13) is fitted with a... The first elastic element (15) is connected to the slide plate (14) and the support rod (1) at both ends respectively. The support rod (1) is slidably provided with a slip ring (16) on the outside. The bottom of the slip ring (16) contacts the top of the slide plate (14). The chassis (2) is provided with a guide groove (17). Two top blocks (18) are slidably provided inside the guide groove (17). The conical block (1301) can squeeze the top blocks (18). Two second elastic elements (19) are connected between the top blocks (18) and the chassis (2).

4. A prefabricated multi-stage energy-dissipating highway crash barrier according to claim 3, characterized in that: It also includes a sealing cap (20), and the feeding port (9) is covered with a sealing cap (20).

5. A prefabricated multi-stage energy-dissipating highway crash barrier according to claim 4, characterized in that: It also includes reflective rings (21), with two reflective rings (21) set on the outside of the buffer tank (8).

6. A prefabricated multi-stage energy-dissipating highway crash barrier according to claim 5, characterized in that: The buffer tank (8) is made of high-density polyethylene or polyurethane material.

Images