A heightening device suitable for concrete guardrail installation

Abstract

The present invention discloses a heightening device suitable for the installation of a concrete guardrail, comprising a concrete guardrail, an upper box, a lower box, an adjustment column mechanism and a wire rope buffer mechanism, wherein the upper box is located above the concrete guardrail, the adjustment column mechanism is located at both end positions between the upper box and the lower box, and the wire rope buffer mechanism is located in the middle position between the upper box and the lower box. The present invention utilizes a heightening guardrail body composed of a rubber buffer roller, a longitudinal steel wire rope and a transverse steel wire rope to reduce the impact force of an accident vehicle colliding with the guardrail, thereby effectively blocking the accident vehicle. The design of a fixed tube and an outer sleeve allows the vehicle to be confined between the upper box and the lower box, preventing the vehicle from colliding with the opposite lane. The lower box and the concrete guardrail are slidably fixed, so that when the vehicle collides with the guardrail, the movement of the device can be utilized to block the vehicle in the current lane, effectively ensuring that the device intercepts the accident vehicle.

Description

Technical Field

[0001] The present invention relates to the field of road guardrail related equipment, in particular to a heightening device suitable for installing an anti-collision guardrail. Background Art

[0002] Highway crash barriers are a crucial piece of transportation infrastructure. my country's expressways, developed since the 1980s, have played a significant role in the nation's economic and social development, and are crucial for highway maintenance and safety. Existing highway crash barriers can be securely installed on both sides of the highway and along the central median using a variety of columns. However, if a vehicle loses control, it can easily overturn the concrete barrier and fall into the oncoming lane, often leaving oncoming vehicles unable to avoid it and causing a violent collision. Therefore, heightening equipment is required to increase the overall height of the concrete barrier.

[0003] However, although the existing heightened guardrail can effectively increase the height of the guardrail when in use, due to the low strength of the guardrail, when a vehicle collides with the guardrail, the guardrail is very likely to deform and cannot effectively block the vehicle. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing concrete guardrails on highways cannot effectively prevent accident vehicles from colliding into the opposite lane. A heightening device suitable for the installation of concrete guardrails is designed.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A heightening device suitable for installing a concrete guardrail, comprising a concrete guardrail, an upper box, a lower box, an adjustment column mechanism, and a wire rope buffer mechanism. The upper box is located above the concrete guardrail, the adjustment column mechanism is located at both ends between the upper box and the lower box, and the wire rope buffer mechanism is located in the middle between the upper box and the lower box.

[0007] An adjusting shaft is movably installed inside the upper box body and the lower box body, and a plurality of drums are installed on the adjusting shaft, and the drums are evenly distributed. A plurality of steel ropes 1 are installed on the drum, and steel rope 2 is installed on the drums located at both ends of the adjusting shaft. The winding direction of steel rope 1 is opposite to that of steel rope 2. Fixed seats are installed at both ends of the upper box body and the lower box body, and a steel rope hole is opened at the center of the fixed seat. Steel rope 2 passes through the steel rope hole. Strip holes are opened in the center of the upper box body and the lower box body, and the strip holes correspond to the position of steel rope 1. Steel rope rolling shafts are movably installed on both sides of the strip holes, and the steel rope 2 passes through the strip holes, and the steel rope 2 is located between the two steel rope rolling shafts;

[0008] Furthermore, the adjustment column mechanism is composed of an outer sleeve, two fixed tubes and a strong tension spring. The two fixed tubes are respectively threadedly connected to the fixing seats on the upper box body and the lower box body. The outer sleeve is sleeved on the two fixing tubes. An annular support baffle is provided at the center of the inner part of the outer sleeve. The annular support baffle and the outer sleeve are fixed by bolts. The annular support baffle is in active contact with the end faces of the two fixing tubes. The strong tension spring is located in the two fixing tubes and the annular support baffle. Tension seats are installed at both ends of the strong tension spring, and the tension seat is fixedly connected to the wire rope.

[0009] Furthermore, limiting rods are installed at both ends of the inner portion of the outer sleeve, and limiting grooves are provided on one end of the two side surfaces of the fixed tube. The limiting rods are movably inserted into the limiting grooves, and the limiting rods are in movably contact with the stretching seat.

[0010] Furthermore, the wire rope buffer mechanism includes a longitudinal wire rope, a transverse wire rope and a rubber buffer drum. The longitudinal wire rope corresponds to the position of wire rope one one to one. The longitudinal wire rope is fixedly connected to wire rope one on the upper box body and the lower box body. The transverse wire rope is located at both ends of the longitudinal wire rope. The two ends of the transverse wire rope are fixedly connected to the longitudinal wire rope. The rubber buffer drum is movably installed on the longitudinal wire rope, and the rubber buffer drum is located between the transverse wire ropes.

[0011] Furthermore, the structures inside the upper box body and the lower box body are symmetrically distributed along the horizontal center line of the outer sleeve.

[0012] Furthermore, sliding bottom plates are provided at both ends of the lower side of the lower box body, and two supporting ear seats are installed at both ends of the upper surface of the sliding bottom plate, and guardrail pipe grooves are opened on the supporting ear seats, and horizontal fixing plates 1 are installed at both ends above the two supporting ear seats, and two fixing ear seats are installed at both ends of the lower surface of the lower box body, and the positions of the fixing ear seats correspond to those of the supporting ear seats, and the lower surface of the fixing ear seat is provided with the same guardrail pipe groove as that on the supporting ear seat, and horizontal fixing plates 2 are installed at both ends below the two fixing ear seats, and the horizontal fixing plates 1 and 2 are fixed by bolts and nuts.

[0013] Furthermore, the supporting ear seat and the fixing ear seat are in sliding contact with the guardrail tube on the concrete guardrail, and the lower box body can move laterally on the guardrail tube of the concrete guardrail.

[0014] Furthermore, the two sliding bottom plates below the lower box body are located on both sides of the guardrail pipe seat of the concrete guardrail.

[0015] Furthermore, the strong tension spring is in a relaxed state during normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The heightening equipment for concrete guardrail installation manufactured by the technical solution of the present invention has the following beneficial effects:

[0018] This heightening equipment uses a raised guardrail body composed of a rubber buffer roller, longitudinal steel wire ropes and transverse steel wire ropes. The rubber buffer roller can provide initial buffering for the accident vehicle, and then the extension and contraction of the steel wire rope can provide secondary buffering for the accident vehicle. The elasticity of the strong tensile spring can reduce the impact force of the accident vehicle hitting the guardrail, thereby preventing the vehicle from crashing into the opposite lane and effectively blocking the accident vehicle.

[0019] This heightening equipment utilizes the design of a fixed tube and an outer sleeve to enable the spacing between the upper box and the lower box to be adjusted. Consequently, when an accident vehicle collides with the guardrail, the collision between the vehicle and the upper box causes the vehicle to push the upper box upward, and the elasticity of the strong tensile spring is utilized to confine the vehicle between the upper and lower boxes, preventing the vehicle from colliding with the opposite lane.

[0020] The lower box of this heightening equipment is slidably fixed to the concrete guardrail, so that when a vehicle collides with the guardrail, the movement of the device can be used to reduce the kinetic energy of the vehicle during the collision, thereby blocking the vehicle in the current lane, effectively ensuring that the device intercepts the accident vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a heightening device suitable for installing a concrete guardrail according to the present invention;

[0022] Figure 2 The present invention Figure 1 Side view of

[0023] Figure 3 The present invention Figure 1 lateral cross-sectional view;

[0024] Figure 4 is a schematic diagram of the upper box body of the present invention;

[0025] Figure 5 is a schematic diagram of the column adjustment mechanism of the present invention;

[0026] In the figure, 1. Concrete guardrail; 2. Upper box body; 3. Lower box body; 4. Adjusting shaft; 5. Reel; 6. Wire rope 1; 7. Wire rope 2; 8. Fixed seat; 9. Wire rope hole; 10. Strip hole; 11. Wire rope rolling shaft; 12. Outer sleeve; 13. Fixed pipe; 14. Strong tensile spring; 15. Annular support baffle; 16. Tensile seat; 17. Limit rod; 18. Limit groove; 19. Longitudinal wire rope; 20. Horizontal wire rope; 21. Rubber buffer roller; 22. Sliding bottom plate; 23. Support ear seat; 24. Guardrail pipe groove; 25. Horizontal fixing plate 1; 26. Fixing ear seat; 27. Horizontal fixing plate 2. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-5 shown.

[0028] The creative point of this scheme is that the adjusting shaft 4 is movably installed inside the upper box body and the lower box body, and several reels 5 are installed on the adjusting shaft. The reels are evenly distributed, and several wire ropes 6 are installed on the reels. Wire ropes 7 are installed on the reels at both ends of the adjusting shaft. The winding direction of wire rope 1 and wire rope 2 is opposite. Fixed seats 8 are installed at both ends of the upper box body and the lower box body. A wire rope hole 9 is opened at the center of the fixed seat. Wire rope 2 passes through the wire rope hole. Strip holes 10 are opened at the center of the upper box body and the lower box body. The strip holes correspond to the position of wire rope 1. Wire rope rolling shafts 11 are movably installed on both sides of the strip holes. Wire rope 2 passes through the strip holes. Wire rope 2 is located between two wire rope rolling shafts. The arrangement of the wire rope rolling shaft 11 can ensure that the wire rope 16 is smoothly extended, and avoids wear between the wire rope 16 and the upper box body 2 and the lower box body 3 when the wire rope 16 is extended, thereby affecting the service life. The arrangement of the wire rope 16 and the wire rope 27 can make the wire rope buffer mechanism able to retract and buffer the vehicle to reduce the kinetic energy of the vehicle colliding with the guardrail. At the same time, the wire rope 27 can be used to pull the strong tension spring 14 to buffer the vehicle again, thereby effectively blocking the vehicle. The arrangement of the fixed seat 8 can enable the upper box body 2 and the lower box body 3 to be quickly connected and fixed to the column, so as to facilitate the disassembly and transportation of the device.

[0029] The creative point of this solution is that the adjusting column mechanism is composed of an outer sleeve 12, two fixed tubes 13 and a strong tensile spring 14. The two fixed tubes are threadedly connected to the fixing seats on the upper box body and the lower box body respectively. The outer sleeve is sleeved on the two fixed tubes. An annular support baffle 15 is provided at the center of the inner part of the outer sleeve. The annular support baffle and the outer sleeve are fixed by bolts. The annular support baffle is in active contact with the end faces of the two fixed tubes. The strong tensile spring is located in the two fixed tubes and the annular support baffle. Tensile seats 16 are installed at both ends of the strong tensile spring, and the tensile seat is fixedly connected to the wire rope. Limit rods 17 are installed at both ends of the inner part of the outer sleeve, and limit grooves 18 are opened at one end of the two side surfaces of the fixed tube. The limit rods are movably inserted in the limit grooves, and the limit rods are in movably contact with the stretching seat; through the arrangement of the outer sleeve 12 and the fixed tube 13, on the one hand, the strength of the column can be increased to prevent the column from bending during collision. On the other hand, it can enable the staff to replace the corresponding parts according to the actual damaged parts to reduce the loss when the column bends. The arrangement of the strong tension spring 14 can use elasticity to reduce the kinetic energy of the vehicle colliding with the guardrail, thereby effectively blocking the vehicle and ensuring the safety of the vehicle. The arrangement of the limit rod 17 can enable the outer sleeve 12 to effectively wrap the strong tension spring 14 to avoid the strong tension spring 14 being exposed when the upper box body 2 moves up, and also ensure that the column can stably support the upper box body 2.

[0030] The innovation of this solution lies in that the wire rope buffer mechanism includes a longitudinal wire rope 19, a transverse wire rope 20 and a rubber buffer drum 21. The positions of the longitudinal wire rope and the wire rope 1 correspond one to one. The longitudinal wire rope is fixedly connected to the wire rope 1 on the upper box body and the lower box body. The transverse wire rope is located at both ends of the longitudinal wire rope. The two ends of the transverse wire rope are fixedly connected to the longitudinal wire rope. The rubber buffer drum is movably installed on the longitudinal wire rope and is located between the transverse wire ropes. The rubber buffer drum 21 can buffer the collision of the vehicle, and the use of the transverse wire rope 20 and the longitudinal wire rope 19 can effectively block the vehicle. At the same time, the connection between the longitudinal wire rope 19 and the wire rope 1 6 can disperse the impact force on the adjustment shaft 4 during the collision, thereby ensuring the service life of the device.

[0031] The innovation of this solution is that sliding bottom plates 22 are provided at both ends of the lower side of the lower box body, two supporting ear seats 23 are installed at both ends of the upper surface of the sliding bottom plate, guardrail pipe grooves 24 are opened on the supporting ear seats, and horizontal fixing plates 25 are installed at both ends of the upper sides of the two supporting ear seats. Two fixing ear seats 26 are installed at both ends of the lower surface of the lower box body, and the positions of the fixing ear seats and the supporting ear seats correspond to each other. The same guardrail pipe grooves as those on the supporting ear seats are opened on the lower surface of the fixing ear seats, and horizontal fixing plates 27 are installed at both ends of the lower sides of the two fixing ear seats. The horizontal fixing plates 1 and 2 are fixed by bolts. and nuts, the supporting ear seat and the fixing ear seat are in sliding contact with the guardrail tube on the concrete guardrail, and the lower box body can move laterally on the guardrail tube of the concrete guardrail; by using the sliding base plate 22, the device can be stably installed above the concrete guardrail 1 to avoid shaking, and the guardrail tube is fixed by the supporting ear seat 23 and the fixing ear seat 26, while being able to slide laterally, so that when a vehicle collides with the device, the movement of the guardrail can be used to bring the vehicle back to the current lane, while reducing the kinetic energy of the vehicle when colliding with the guardrail.

[0032] This technical solution mainly addresses the phenomenon that concrete guardrails on highways are unable to prevent vehicles from colliding into the opposite lane.

[0033] After the device is installed on the concrete guardrail 1, the sliding base 22 is in contact with the concrete guardrail 1, and the supporting ear seat 23 and the fixing ear seat 26 fix the device on the guardrail tube of the concrete guardrail 1. At the same time, the two sliding base plates 22 are located on both sides of the support of the guardrail tube of the concrete guardrail 1, and the strong tension spring 14 is in a relaxed state;

[0034] When a vehicle has an accident and rushes over the concrete guardrail, the vehicle first contacts the rubber buffer roller 21. The rotation and elasticity of the rubber buffer roller 21 are used to block and buffer the vehicle when the vehicle hits the rubber buffer roller 21, thereby reducing the kinetic energy of the vehicle during the collision. At the same time, the longitudinal steel wire rope 19 can ensure the strength of the device to avoid the problem of vehicle breakage during collision caused by the use of traditional guardrails. Then, as the vehicle impacts, the rubber buffer roller 21 begins to pull the longitudinal steel wire rope 19, causing the longitudinal steel wire rope 19 to pull the steel wire rope 1 6 to begin to extend, thereby driving the adjustment shaft 4 to rotate. The rotation of the adjustment shaft 4 uses the rotating drum 5 to drive the steel wire rope 2 7 to begin to contract, thereby causing the steel wire rope 2 7 on the upper box body 2 and the lower box body 3 to simultaneously pull the strong tension spring 14, thereby causing the strong tension spring 14 to be pulled apart, and then using the elasticity of the strong tension spring 14 to reduce the kinetic energy of the vehicle during collision.

[0035] As the vehicle collides between the upper box body 2 and the lower box body 3, the vehicle contacts the upper box body 2 and pushes the upper box body 2 to start rising. As the upper box body 2 rises, the upper box body 2 pulls the strong tension spring 14 through the wire rope 2 7 to stretch again, thereby stably confining the vehicle between the upper box body 2 and the lower box body 3, thereby preventing the vehicle from colliding with the opposite lane;

[0036] When the accident vehicle is cleared away, the strong tension spring 14 begins to contract by its own elasticity, thereby pulling the wire rope 2 7 to start releasing, and the reverse rotation of the adjusting shaft 4 is used to make the wire rope 1 6 start to reel, thereby restoring the device to its original position;

[0037] When the device is damaged by a collision with an accident vehicle, since the upper box body 2 and the lower box body 3 are circular boxes, when the vehicle collides with the upper box body 2 and the lower box body 3, they can quickly move to the top of the lower box body 3, and the upper box body 2 rises with the structure of the vehicle, so that the upper box body 2 and the lower box body 3 will not be seriously damaged, while the outer sleeve 12 and the fixed tube 13 will bend due to the excessive impact force of the vehicle. At this time, the staff only needs to remove the damaged parts of the outer sleeve 12 and the fixed tube 13 and replace them with corresponding new parts to make the device usable again.

[0038] When the upper box body 2 rises, the upper box body 2 drives the corresponding fixed tube 13 to rise, and at the same time, the wire rope 2 7 drives the stretching seat 16 to start rising, so that the stretching seat 16 contacts the limit rod 17, and then the outer sleeve 12 is dragged up through the limit rod 17, so that the outer sleeve 12 can block the gap between the upper box body 2 and the upper fixed tube of the lower box body 3 after the upper box body 2 rises. On the one hand, it can ensure the stability of the upper box body 2 and prevent the upper box body 2 from shaking. On the other hand, it can ensure the safe use of the strong tension spring 14.

[0039] When an accident occurs, when the accident vehicle hits the guardrail obliquely, due to the tilted impact of the accident vehicle, the device can move in a small range on the concrete guardrail 1, so that when the accident vehicle hits the device obliquely, on the one hand, the rolling of the rubber buffer roller 21 is used to reduce the impact kinetic energy of the vehicle and cushion the collision of the vehicle. On the other hand, the movement of the device on the concrete guardrail 1 can be used to further reduce the impact kinetic energy of the vehicle during the collision, and the contact part between the vehicle and the device can be moved back to the current lane to prevent the vehicle from rushing into the opposite lane.

[0040] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A heightening device suitable for installing a concrete guardrail, comprising a concrete guardrail (1), an upper box (2), a lower box (3), an adjustment column mechanism and a wire rope buffer mechanism, wherein the upper box is located above the concrete guardrail, the adjustment column mechanism is located at both ends between the upper box and the lower box, and the wire rope buffer mechanism is located in the middle between the upper box and the lower box, and is characterized in that: An adjusting shaft (4) is movably installed inside the upper box and the lower box, and a plurality of drums (5) are installed on the adjusting shaft, and the drums are evenly distributed. A plurality of steel ropes (6) are installed on the drums, and steel ropes (7) are installed on the drums located at both ends of the adjusting shaft. The winding direction of steel ropes (1) and (2) is opposite. A fixing seat (8) is installed at both ends of the upper box and the lower box, and a steel rope hole (9) is opened at the center of the fixing seat. Steel ropes (2) pass through the steel rope hole. A strip hole (10) is opened at the center of the upper box and the lower box, and the strip hole corresponds to the position of steel rope (1). Steel rope rolling shafts (11) are movably installed on both sides of the strip hole. Steel ropes (2) pass through the strip hole. Steel ropes (2) are located between the two steel rope rolling shafts. The adjusting column mechanism is composed of an outer sleeve (12), two fixed tubes (13) and a strong tension spring (14), the two fixed tubes are respectively threadedly connected to the fixing seats on the upper box body and the lower box body, the outer sleeve is sleeved on the two fixed tubes, an annular support baffle (15) is provided at the center of the inner part of the outer sleeve, the annular support baffle and the outer sleeve are fixed by bolts, the annular support baffle is in active contact with the end faces of the two fixed tubes, the strong tension spring is located in the two fixed tubes and the annular support baffle, and a tension seat (16) is installed at both ends of the strong tension spring, and the tension seat is fixedly connected to the wire rope. Limit rods (17) are installed at both ends of the inner portion of the outer sleeve, and a limit groove (18) is provided on one end of the two side surfaces of the fixed tube. The limit rods are movably inserted into the limit grooves, and the limit rods are in movably contact with the stretching seat. The wire rope buffer mechanism includes a longitudinal wire rope (19), a transverse wire rope (20) and a rubber buffer roller (21), wherein the longitudinal wire rope corresponds to the position of the wire rope 1 one to one, the longitudinal wire rope is fixedly connected to the wire rope 1 on the upper box body and the lower box body, the transverse wire rope is located at both ends of the longitudinal wire rope, and the two ends of the transverse wire rope are fixedly connected to the longitudinal wire rope, and the rubber buffer roller is movably installed on the longitudinal wire rope, and the rubber buffer roller is located between the transverse wire ropes.

2. The heightening device suitable for concrete guardrail installation according to claim 1, characterized in that: The structures inside the upper box body and the lower box body are symmetrically distributed along the horizontal center line of the outer sleeve.

3. The heightening device suitable for installing a concrete guardrail according to claim 1, characterized in that: The lower ends of the lower box body are provided with sliding bottom plates (22), two supporting ear seats (23) are installed at the two ends of the upper surface of the sliding bottom plate, and guardrail pipe grooves (24) are opened on the supporting ear seats. A transverse fixing plate 1 (25) is installed at the two ends above the two supporting ear seats, and two fixing ear seats (26) are installed at the two ends of the lower surface of the lower box body respectively, the positions of the fixing ear seats and the supporting ear seats are corresponding, and the lower surface of the fixing ear seats is provided with the same guardrail pipe groove as that on the supporting ear seats, and a transverse fixing plate 2 (27) is installed at the two ends below the two fixing ear seats, and the transverse fixing plate 1 and the transverse fixing plate 2 are fixed by bolts and nuts.

4. The heightening device suitable for installing a concrete guardrail according to claim 3, characterized in that: The supporting ear seat and the fixing ear seat are in sliding contact with the guardrail tube on the concrete guardrail, and the lower box body can move laterally on the guardrail tube of the concrete guardrail.

5. The heightening device suitable for installing a concrete guardrail according to claim 3, characterized in that: The two sliding bottom plates below the lower box body are located on both sides of the guardrail pipe seat of the concrete guardrail.

6. The heightening device suitable for installing a concrete guardrail according to claim 1, characterized in that: The strong tension spring is in a relaxed state during normal use.

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