A wave-shaped guardrail installation auxiliary device

Abstract

This invention discloses an auxiliary device for installing corrugated guardrails, characterized by comprising a vehicle body, a rotating platform, a support arm, a telescopic arm, a clamping mechanism, and a limiting mechanism. The clamping mechanism is divided into a first clamping mechanism and a second clamping mechanism, and the limiting mechanism is divided into a first limiting mechanism and a second limiting mechanism. The rotating platform is rotatably connected to the vehicle body, the support arm is horizontally fixed to the upper surface of the rotating platform, and the telescopic arm is rotatably connected to the upper surface of the rotating platform. The first clamping mechanism is slidably disposed on the support arm, and the first limiting mechanism is disposed between the first clamping mechanism and the support arm. The second clamping mechanism is rotatably disposed on the telescopic arm, and the second limiting mechanism is disposed between the second clamping mechanism and the telescopic arm. The clamping mechanism is used to clamp and fix the guardrail panel, and the limiting mechanism is used to restrict the edge of the guardrail panel from turning over when it bends. This invention solves the problems of time-consuming and labor-intensive installation of corrugated guardrails in the prior art, as well as the safety and difficulty of installation at curved sections.

Description

Technical Field

[0001] This invention belongs to the field of guardrail installation, and particularly relates to an auxiliary device for installing corrugated guardrails. Background Technology

[0002] Corrugated guardrails installed along roadsides provide drivers with a sense of security, making them feel protected by the road's edge. Furthermore, in the event of a traffic accident, the guardrails offer some cushioning and protection upon impact. During installation, corrugated guardrails are typically installed by first driving pile drivers into the ground, or by pre-embedding the posts along both sides of the road. The posts are spaced evenly along the road edge. Then, overlapping guardrail panels are connected and secured to the posts using bolts. Because corrugated guardrail panels have strong bending resistance along their length, when installing guardrails at curves, workers typically first connect one end of the guardrail panel to the road surface. The posts are fixed in place, and then the guardrail is manually pushed to make contact with another post. Other workers then use bolts to connect the guardrail to the posts to complete the installation of the guardrail for the curve. During the bending process of the guardrail, multiple people need to work together to repeatedly push the free end of the guardrail to make it bend. When pushing the guardrail, uneven force can cause it to bend at an angle, twist, turn over, or bend excessively in the same position to form a sharp corner. In addition, the curvature of most guardrails cannot adapt to the shape of the curve, and the installation process is time-consuming, labor-intensive, and unsafe, requiring multiple workers to work together. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of time-consuming and labor-intensive installation of corrugated guardrails in the prior art, as well as the safety issues and high installation difficulty when installing them at bends, and to propose an auxiliary device for corrugated guardrail installation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An auxiliary device for installing a wave-shaped guardrail, characterized in that it includes a vehicle body, a rotating platform, a support arm, a telescopic arm, a clamping mechanism, and a limiting mechanism. The clamping mechanism is divided into a first clamping mechanism and a second clamping mechanism, and the limiting mechanism is divided into a first limiting mechanism and a second limiting mechanism. The rotating platform is rotatably connected to the vehicle body. The support arm is horizontally fixed to the upper surface of the rotating platform. The telescopic arm is rotatably connected to the upper surface of the rotating platform. The first clamping mechanism is slidably disposed on the support arm. The first limiting mechanism is disposed between the first clamping mechanism and the support arm. The second clamping mechanism is rotatably disposed on the telescopic arm. The second limiting mechanism is disposed between the second clamping mechanism and the telescopic arm. The clamping mechanism is used to clamp and fix the guardrail panel, and the limiting mechanism is used to restrict the edge of the guardrail panel from turning up when it bends.

[0006] As a further description of the above technical solution:

[0007] Two telescopic arms are provided, and a support arm is located between the two telescopic arms. Each telescopic arm includes a rotating arm and a sliding arm. The rotating arm is rotatably connected to the rotating platform. A first hydraulic cylinder is provided between the rotating arm and the support arm, and the first hydraulic cylinder adjusts the angle between the rotating arm and the support arm. The sliding arm is sleeved on the rotating arm, and a second hydraulic cylinder is provided between the sliding arm and the rotating arm, and the second hydraulic cylinder is used to control the telescopic distance of the sliding arm.

[0008] As a further description of the above technical solution:

[0009] The clamping mechanism includes a mounting base, a rotating frame, a fixed frame, a first clamping wheel, a second clamping wheel, a clamping plate, and a fourth hydraulic cylinder. The mounting base of the first clamping mechanism is slidably mounted on the support arm, and the mounting base of the second clamping mechanism is rotatably mounted on the sliding arm. The rotating frame is rotatably mounted on the mounting base. The fourth hydraulic cylinder is disposed between the rotating frame and the mounting base. The fourth hydraulic cylinder is used to adjust the angle between the mounting base and the rotating frame. The first clamping wheel and the second clamping wheel are both rotatably disposed around the end of the rotating frame away from the mounting base. The fixed frame is fixedly disposed on the mounting base, and the clamping plate is fixedly disposed on the side of the fixed frame facing the rotating frame.

[0010] As a further description of the above technical solution:

[0011] Two first rotating plates are disposed between the first clamping wheel and the rotating frame, and two second rotating plates are disposed between the second clamping wheel and the rotating frame. A rotating shaft is disposed at the end of the rotating frame away from the mounting base. The axis of the rotating shaft is parallel to the rotation axis of the rotating frame. A torsion spring is disposed between the rotating shaft and the rotating frame. The first clamping wheel is rotatably connected between the two first rotating plates. The ends of the two first rotating plates away from the first clamping wheel are respectively fixed to both ends of the rotating shaft. The second clamping wheel is rotatably connected between the two second rotating plates. The ends of the two second rotating plates away from the second clamping wheel rotate on the rotating shaft. The two second rotating plates are located between the two first rotating plates. A spring is also disposed between the first rotating plates and the second rotating plates.

[0012] As a further description of the above technical solution:

[0013] Both the first clamping wheel and the second clamping wheel are rubber wheels, and the surface of the clamping plate is provided with a layer of hard rubber.

[0014] As a further description of the above technical solution:

[0015] The limiting mechanism includes four drive rods, a first limiting plate, a second limiting plate, and two connecting frames. The first and second limiting plates are fixedly connected to the connecting frames and are symmetrically arranged vertically about the fixed frame. Each drive rod consists of a telescopic rod and a sleeve. The sleeve is fitted onto the telescopic rod, and a limiting nut is threaded onto the telescopic rod. The drive rod of the first limiting mechanism is rotatably disposed between the support arm and the first limiting plate. The drive rod of the second limiting mechanism is disposed between the sliding arm and the first limiting plate. The telescopic rod of the second limiting mechanism is ball-jointed with the sliding arm, and the sleeve is ball-jointed with the first limiting plate. Both connecting frames are disposed on the fixed frame and are symmetrically arranged horizontally about the fixed frame. The four drive rods are grouped in pairs, and the two groups of drive rods are symmetrically arranged about the mounting base. Under the action of the drive rods, the first and second limiting plates press against the edge of the guardrail.

[0016] As a further description of the above technical solution:

[0017] The connecting frame includes a first connecting rod, a second connecting rod, a first link, and a second link. A rotating seat is provided on the side of the fixed frame away from the clamping plate. One end of the first connecting rod is fixedly connected to the first limiting plate, and the other end of the first connecting rod is rotatably connected to the rotating seat, with its rotation axis parallel to the rotation axis of the rotating frame. One end of the second connecting rod is fixedly connected to the second limiting plate, and the other end of the second connecting rod is rotatably connected to the rotating seat, with its rotation axis parallel to the rotation axis of the rotating frame. A limiting groove is provided on the fixed frame, and the limiting groove is horizontally positioned. A sliding shaft is slidably disposed within the limiting groove, and the axis of the sliding shaft is parallel to the rotation axis of the rotating frame. One end of the first link is rotatably connected to the first connecting rod, and the other end is rotatably connected to the sliding shaft. One end of the second link is rotatably connected to the second connecting rod, and the other end is rotatably connected to the sliding shaft.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] (1) The present invention has a simple structure and is easy to operate. After the guardrail is clamped and fixed by the device, the vehicle body is moved to the predetermined position. The worker only needs to install the corresponding bolts. When installing the guardrail at the bend, the device can quickly and safely bend the guardrail to a certain arc. In the bending process, it can effectively suppress the guardrail from flipping over, the guardrail is evenly stressed, and the bending arc can adapt well to the arc of the bend.

[0020] (2) In order to better adapt the curvature of the guardrail at the bend to the road, the guardrail needs to bend asymmetrically. The support arm and telescopic arm of this equipment can adjust the curvature of the guardrail when bending by the angle between them and the length of the telescopic arm, so as to ensure that the guardrail can adapt to the road when bending.

[0021] (3) Under the linkage of the drive rod and the connecting frame, the first limiting plate and the second limiting plate can effectively apply pressure to the edge of the guardrail, thereby effectively suppressing the occurrence of guardrail overturning. The position of the force of overturning at the position corresponding to the guardrail and the first clamping mechanism is determined. The drive rod connected by rotation can make the force resisting the bending of the guardrail generated by the first limiting plate and the second limiting plate uniform and located at the main position of the bending of the guardrail. The drive rod adopts a ball joint connection to cooperate with the rotation of the second clamping mechanism. Since the guardrail slides relative to the second clamping mechanism when it bends, the overturning position corresponding to the guardrail and the second clamping mechanism changes. When the drive rod rotates at the ball joint, it can drive the first limiting plate to rotate along its length direction to prevent the guardrail from overturning and can correspond to the overturning position. The positions corresponding to the guardrail and the first and second clamping mechanisms are the main positions where the guardrail will flip over when it is bent. Under the combined force of the first and second limiting plates on the first and second clamping mechanisms, the first and second limiting plates clamp the edge of the guardrail so that it will not flip over.

[0022] (4) Both the first clamping wheel and the second clamping wheel are rubber wheels. The surface of the clamping plate is provided with a layer of hard rubber, which can prevent the surface of the guardrail from being worn and increase the friction between the clamping plate and the guardrail, thus enabling the guardrail to be stably clamped and fixed. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention, in which the vehicle body is not shown;

[0025] Figure 3 This is a schematic diagram showing the positional relationship between the support arm, clamping mechanism, and limiting mechanism of the present invention.

[0026] Figure 4 This is a front view showing the positional relationship between the support arm, clamping mechanism, and limiting mechanism of the present invention.

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the sliding arm, clamping mechanism, and limiting mechanism of the present invention.

[0028] Figure 6This is a front view showing the positional relationship between the sliding arm, clamping mechanism, and limiting mechanism of the present invention.

[0029] Figure 7 This is a schematic diagram of the working state structure of the present invention.

[0030] Legend: 1. Vehicle body; 2. Rotating platform; 3. Support arm; 4. Telescopic arm; 5. Rotating arm; 6. Sliding arm; 7. First hydraulic cylinder; 8. Second hydraulic cylinder; 9. First clamping mechanism; 10. Third hydraulic cylinder; 11. First limiting mechanism; 12. Second clamping mechanism; 13. Second limiting mechanism; 14. Mounting seat; 15. Rotating frame; 16. Fourth hydraulic cylinder; 17. First clamping wheel; 18. Second clamping wheel; 19. First rotating plate; 20. Second rotating plate; 21. Connecting plate; 22. Fixing frame; 23. Clamping plate; 24. Drive rod; 25. Telescopic rod; 26. Sleeve; 27. First limiting plate; 28. Second limiting plate; 30. First connecting rod; 31. Second connecting rod; 32. First connecting rod; 33. Second connecting rod; 34. Rotating seat; 35. Limiting groove; 36. Sliding shaft. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-7 This invention provides a technical solution for an auxiliary device for installing corrugated guardrails:

[0033] A corrugated guardrail installation auxiliary device includes a vehicle body 1, a rotating platform 2, a support arm 3, a telescopic arm 4, a clamping mechanism, and a limiting mechanism. The clamping mechanism is divided into a first clamping mechanism 9 and a second clamping mechanism 12, and the limiting mechanism is divided into a first limiting mechanism 11 and a second limiting mechanism 13.

[0034] The rotating platform 2 is rotatably connected to the vehicle body 1. The support arm 3 is horizontally fixed to the upper surface of the rotating platform 2. Two telescopic arms 4 are provided, and both telescopic arms 4 are rotatably connected to the upper surface of the rotating platform 2. The support arm 3 and the two telescopic arms 4 are located in the same plane, with the support arm 3 located between the two telescopic arms 4. Each telescopic arm 4 includes a rotating arm 5 and a sliding arm 6. The rotating arm 5 is rotatably connected to the rotating platform 2. A first hydraulic cylinder 7 is provided between the rotating arm 5 and the support arm 3, and the angle between the rotating arm 5 and the support arm 3 is adjusted by the first hydraulic cylinder 7. The sliding arm 6 is sleeved and slides on the rotating arm 5. A second hydraulic cylinder 8 is provided between the sliding arm 6 and the rotating arm 5, and the second hydraulic cylinder 8 is used to control the extension distance of the sliding arm 6.

[0035] A first clamping mechanism 9 is slidably mounted on the end of the support arm 3 away from the rotating platform 2, with the sliding direction along the length of the support arm 3. A third hydraulic cylinder 10 is provided between the first clamping mechanism 9 and the support arm 3, controlling the sliding direction and distance of the first clamping mechanism 9 along the support arm 3. A first limiting mechanism 11 is provided between the first clamping mechanism 9 and the support arm 3. A second clamping mechanism 12 is rotatably mounted on the end of the sliding arm 6 away from the rotating platform 2, with a second limiting mechanism 13 also provided between the second clamping mechanism 12 and the sliding arm 6. The first clamping mechanism 9 and the second clamping mechanism 12 are used to clamp and fix the guardrail. Under the linkage of the support arm 3 and the telescopic arm 4, the first clamping mechanism 9 and the second clamping mechanism 12 cause the guardrail to bend. The first limiting mechanism 11 and the second limiting mechanism 13 are used to limit the edge of the guardrail to prevent the guardrail from flipping over when bending.

[0036] The clamping mechanism includes a mounting base 14, a rotating frame 15, a fixed frame 22, a first clamping wheel 17, a second clamping wheel 18, a clamping plate 23, and a fourth hydraulic cylinder 16. The rotating frame 15 is rotatably mounted on the mounting base 14. A fourth hydraulic cylinder 16 is disposed between the rotating frame 15 and the mounting base 14. One end of the fourth hydraulic cylinder 16 is rotatably connected to the mounting base 14, and the other end is rotatably connected to the rotating frame 15. The angle between the mounting base 14 and the rotating frame 15 is adjusted by the fourth hydraulic cylinder 16. The first clamping wheel 17 and the second clamping wheel 18 are both rubber wheels. The first clamping wheel 17 and the second clamping wheel 18 are both rotatably arranged around the end of the rotating frame 15 away from the mounting base 14. A rotating shaft (not shown in the figure) is disposed at the end of the rotating frame 15 away from the mounting base 14. The axis of the rotating shaft is parallel to the rotation axis of the rotating frame 15. A torsion spring is disposed between the rotating shaft and the rotating frame 15. A clamping wheel 17 is rotatably connected between two first rotating plates 19. The ends of the two first rotating plates 19 away from the first clamping wheel 17 are respectively fixed to both ends of the rotating shaft. A second clamping wheel 18 is rotatably connected between two second rotating plates 20. The ends of the two second rotating plates 20 away from the second clamping wheel 18 rotate on the rotating shaft. The two second rotating plates 20 are located between the two first rotating plates 19. A spring is also provided between the first rotating plates 19 and the second rotating plates 20 so that the first rotating plates 19 and the second rotating plates 20 always maintain a certain angle. A fixing frame 22 is fixedly mounted on a mounting base 14. A connecting plate 21 is fixedly mounted on one end of the mounting base 14 away from the rotating frame 15. The fixing frame 22 is fixedly connected to the connecting plate 21. A clamping plate 23 is fixedly mounted on the side of the fixing frame 22 facing the rotating frame 15. A layer of hard rubber is provided on the surface of the clamping plate 23.

[0037] The difference between the first clamping mechanism 9 and the second clamping mechanism 12 is that the first clamping mechanism 9 is slidably connected to the support arm 3, while the second clamping mechanism 12 is rotatably connected to the sliding arm 6. The first clamping mechanism 9 is slidably disposed below the support arm 3. A T-shaped groove is provided on the support arm 3 along its length. A T-shaped slider is provided on the mounting base 14 of the first clamping mechanism 9. The T-shaped slider is adapted to slide within the T-shaped groove (not shown in the figure). A third hydraulic cylinder 10 is provided between the mounting base 14 of the first clamping mechanism 9 and the support arm 3. The mounting base 14 of the second clamping mechanism 12 is rotatably connected to the sliding arm 6 and located below it.

[0038] The clamping mechanism is used to clamp the guardrail panel, raise the guardrail panel along its width direction and place it between the clamping plate 23 and the first clamping wheel 17 and the second clamping wheel 18. Then, the fourth hydraulic cylinder 16 causes the rotating frame 15 to rotate around the mounting base 14, so that the first clamping wheel 17 and the second clamping wheel 18 are adapted to the guardrail panel and press and fix the guardrail panel on the clamping plate 23.

[0039] The limiting mechanism includes four drive rods 24, a first limiting plate 27, a second limiting plate 28, and two connecting frames. The two connecting frames are both mounted on the fixed frame 22 and are symmetrically arranged about the left and right sides of the fixed frame 22. The first limiting plate 27 and the second limiting plate 28 are symmetrically arranged about the top and bottom of the fixed frame 22. Hard rubber pads are provided on the opposite surfaces of the first limiting plate 27 and the second limiting plate 28. The first limiting plate 27 and the second limiting plate 28 are fixedly connected to the connecting frames. The four drive rods 24 are in pairs. In the initial state, the two sets of drive rods 24 are symmetrically arranged about the mounting base 14. The two drive rods 24 in the same group are symmetrically arranged. The drive rod 24 is composed of a telescopic rod 25 and a sleeve 26. The sleeve 26 is fitted on the telescopic rod 25. The telescopic rod 25 is threaded with a limiting nut. The shortest length of the drive rod 24 can be adjusted by adjusting the position of the limiting nut.

[0040] The connecting frame includes a first connecting rod 30, a second connecting rod 31, a first connecting rod 32, and a second connecting rod 33. A rotating seat 34 is provided on the side of the fixed frame 22 away from the clamping plate 23. One end of the first connecting rod 30 is fixedly connected to the first limiting plate 27, and the other end of the first connecting rod 30 is rotatably connected to the rotating seat 34, with its rotation axis parallel to the rotation axis of the rotating frame 15. One end of the second connecting rod 31 is fixedly connected to the second limiting plate 28, and the other end of the second connecting rod 31 is rotatably connected to the rotating seat 34, with its rotation axis parallel to the rotation axis of the rotating frame 15. A limiting groove 35 is provided on the fixed frame 22, and the limiting groove 35 is horizontally positioned. A sliding shaft 36 is slidably disposed within the limiting groove 35, with its axis parallel to the rotation axis of the rotating frame 15. One end of the first connecting rod 32 rotates... The first connecting rod 30 is connected to the first connecting rod 30, and the other end is rotatably connected to the sliding shaft 36. The second connecting rod 33 is rotatably connected to the second connecting rod 31 at one end and to the sliding shaft 36 at the other end. In the working state, the first clamping wheel 17, the second clamping wheel 18 and the clamping plate 23 clamp the guardrail. At this time, the first limiting plate 27 and the second limiting plate 28 are located above and below the guardrail respectively and are in contact with the upper and lower edges of the guardrail. When the guardrail is bent, under the action of the driving rod 24, the first limiting plate 27 presses against the periphery of the guardrail. When the first limiting plate 27 presses against the guardrail, the first connecting rod 30 rotates and drives the first connecting rod 32 to rotate. The sliding shaft 36 slides and drives the second connecting rod 33. The second connecting rod 33 drives the second connecting rod 31 to rotate. The second connecting rod 31 drives the second limiting plate 28 to press against the guardrail.

[0041] The difference between the first limiting mechanism 11 and the second limiting mechanism 13 is that the drive rod 24 of the first limiting mechanism 11 is located between the support arm 3 and the first limiting plate 27, the telescopic rod 25 of the first limiting mechanism 11 is rotatably connected to the support arm 3, and the sleeve 26 is rotatably connected to the first limiting plate 27. The drive rod 24 of the second limiting mechanism 13 is located between the sliding arm 6 and the first limiting plate 27, the telescopic rod 25 of the second limiting mechanism 13 is ball-jointed with the sliding arm 6, and the sleeve 26 is ball-jointed with the first limiting plate 27.

[0042] Working principle: When installing the corrugated guardrail, firstly, a pile driver is used to drive the posts into the ground, or the posts are pre-embedded in the ground. After the posts are set at equal intervals along the road edge, the angle between the telescopic arm 4 and the support arm 3 is adjusted by the first hydraulic cylinder 7, and the length of the telescopic arm 4 is adjusted by the second hydraulic cylinder 8, so that the three clamping plates 23 of the first clamping mechanism 9 and the two second clamping mechanisms 12 are located in the same vertical plane. At the same time, the rotating frame 15 is adjusted by the fourth hydraulic cylinder 16, so that the rotating frame 15 and the mounting base 14 form the maximum angle. There is sufficient space between the first clamping wheel 17, the second clamping wheel 18 and the clamping plate 23 to insert the guardrail panel. Then, the rotating platform 2 is operated to rotate around the vehicle body 1. The telescopic arm 4 and support arm 3 are rotated to adjust their positions and clamp the corrugated guardrail plate onto the clamping mechanism. Specifically, the worker lifts the guardrail plate so that its width is perpendicular to the horizontal plane, and positions the outer side of the guardrail plate towards the clamping plate 23, ensuring it is in contact with the clamping plate 23 and positioned between the first limiting plate 27 and the second limiting plate 28. The distance between the first limiting plate 27 and the second limiting plate 28 is equal to the width of the guardrail plate. Then, the fourth hydraulic cylinder 16 rotates the rotating frame 15, causing the first clamping wheel 17 and the second clamping wheel 18 to be positioned behind the troughs on the inner side of the guardrail plate. The fourth hydraulic cylinder 16 is then operated to continue pressing the guardrail plate with the first clamping wheel 17 and the second clamping wheel 18. The operation of the fourth hydraulic cylinder 16 is stopped until the guardrail is clamped and fixed between the first clamping wheel 17, the second clamping wheel 18 and the clamping plate 23. Then, the rotating table 2 is rotated so that the guardrail is positioned between the two columns. Then, the adjacent guardrails are connected together and fixed to the columns with bolts. The above process is for installing guardrails on straight roads. When installing guardrails at curves, the guardrails need to be bent. The specific working process is as follows: After the guardrail is clamped and fixed, the first hydraulic lever and the second hydraulic cylinder 8 are depressurized first, so that the telescopic arm 4 can freely extend and retract and rotate around the rotating table 2. Then, the first clamping mechanism 9 is driven by the third hydraulic cylinder 10 to slide along the support arm 3. When the first clamping mechanism 9 moves towards the support arm 3, the first clamping mechanism 9 moves towards the support arm 2 to move along ... When the rotating platform 2 moves in one direction, the guardrail bends outward. When the first clamping mechanism 9 moves away from the rotating platform 2, the guardrail bends inward. Since the guardrail is clamped and fixed by the clamping mechanism, when the guardrail bends, the second clamping mechanism 12 rotates around the sliding arm 6, and the telescopic arm 4 also rotates and extends. At the same time, the guardrail slides relative to the second clamping mechanism 12 to adapt to the bending angle of the guardrail. After bending to a certain angle, the worker connects the guardrail to the column with bolts, and then operates the fourth hydraulic lever to make the first clamping wheel 17 and the second clamping wheel 18 no longer clamp the guardrail. Then the vehicle body 1 is driven away, and the next guardrail is installed.

[0043] During the bending process of the guardrail, the limiting mechanism is also driven to limit the perimeter of the guardrail to prevent the guardrail from flipping over due to bending. Specifically, for the first clamping mechanism 9, since the first clamping mechanism 9 slides along the support arm 3, the two drive rods 24 in the same group will rotate, one will extend and the other will tend to shorten. However, due to the action of the limiting nut, the drive rod 24 cannot shorten. Therefore, the drive rod 24 drives the first limiting plate 27 to rotate around the rotating seat 34 and press it against the edge of the guardrail. At the same time, the first limiting plate 27 presses against the upper edge of the guardrail, and under the linkage of the first connecting rod 30, the second connecting rod 31, the first connecting rod 32 and the second connecting rod 33, the second limiting plate 28 is pressed against the lower edge of the guardrail. Since the first clamping mechanism 9 only slides along the support arm 3, the position of the bending force on the guardrail is almost fixed during the bending process. The position of the guardrail's flange at the location of the first clamping mechanism 9 is fixed. The driving rod 24, which is connected by rotation, can make the force generated by the first limiting plate 27 and the second limiting plate 28 effectively resist the bending position of the guardrail and prevent it from turning over, thus maintaining its normal shape. During the sliding process of the first clamping mechanism 9, the driving rod 24 drives the first limiting plate 27 to press the edge of the guardrail. During the pressing process of the first limiting plate 27, the first connecting rod 30 rotates, causing the first connecting rod 32 to rotate. The sliding shaft 36 slides, causing the second connecting rod 33 to rotate. The second connecting rod 33 drives the second connecting rod 31 to rotate. The second connecting rod 31 drives the second limiting plate 28 to press the periphery of the guardrail. The first limiting plate 27 rotates downward and the second limiting plate 28 rotates upward together to clamp the periphery of the guardrail and prevent the guardrail from turning over when it bends.

[0044] The second clamping mechanism 12 is rotatably connected to the sliding arm 6. When the guardrail is bent, the second clamping mechanism 12 rotates around the sliding arm 6. At the same time as the rotation, one of the corresponding drive rods 24 in the same group extends while the other tends to shorten. Since the drive rod 24 is ball-jointed with the sliding arm 6 and the first limiting plate 27, the second clamping mechanism 12 can drive the first limiting plate 27 to rotate around the rotating seat 34 when it rotates, so that the first limiting plate 27 presses against the edge of the guardrail. At the same time that the first limiting plate 27 presses against the upper edge of the guardrail, the first connecting rod 30, the second connecting rod 31, and the first connecting rod... 32. Under the linkage of the second link 33, the second limiting plate 28 is pressed against the lower edge of the guardrail. The first limiting plate 27 rotates downward and the second limiting plate 28 rotates upward together to clamp the perimeter of the guardrail to prevent the guardrail from flipping over when it bends. The drive rod 24 is connected by a ball joint and can cooperate with the rotation of the second clamping mechanism 12. Since the guardrail slides relative to the second clamping mechanism 12 when it bends, the position where the guardrail has the greatest flipping force changes. When the drive rod 24 rotates at the ball joint, it can drive the first limiting plate 27 to have a bending force along the length direction to prevent the guardrail from flipping over.

[0045] Installation steps for corrugated guardrail:

[0046] Step 1: Place the posts at equal intervals along the roadside;

[0047] Step 2: Secure the guardrail panel to the clamping mechanism and move the guardrail panel to the designated position;

[0048] Step 3: For level roads, the guardrail is directly installed on the posts using bolts. For curves, the guardrail is bent to the designated position by sliding along the support arm 3 using the first clamping mechanism 9, and then the guardrail is installed on the posts using bolts.

[0049] Step 4: Release the clamps securing the guardrail panels.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention, and all such substitutions or changes should be covered within the scope of protection of the present invention.

Claims

1. An auxiliary device for installing corrugated guardrails, characterized in that... The system includes a vehicle body (1), a rotating platform (2), a support arm (3), a telescopic arm (4), a clamping mechanism, and a limiting mechanism. The clamping mechanism is divided into a first clamping mechanism (9) and a second clamping mechanism (12). The limiting mechanism is divided into a first limiting mechanism (11) and a second limiting mechanism (13). The rotating platform (2) is rotatably connected to the vehicle body (1). The support arm (3) is horizontally fixed on the upper surface of the rotating platform (2). The telescopic arm (4) is rotatably connected to the upper surface of the rotating platform (2). The first clamping mechanism (9) is slidably disposed on the support arm (3). The first limiting mechanism (11) is disposed between the first clamping mechanism (9) and the support arm (3). The second clamping mechanism (12) is rotatably disposed on the telescopic arm (4). The second limiting mechanism (13) is disposed between the second clamping mechanism (12) and the telescopic arm (4). The clamping mechanism is used to clamp and fix the guardrail. The limiting mechanism is used to limit the edge of the guardrail from turning over when it is bent. The clamping mechanism includes a mounting base (14), a rotating frame (15), a fixed frame (22), a first clamping wheel (17), a second clamping wheel (18), a clamping plate (23), and a fourth hydraulic cylinder (16). The mounting base (14) of the first clamping mechanism (9) is slidably mounted on the support arm (3). The mounting base (14) of the second clamping mechanism (12) rotates on the telescopic arm (4). The rotating frame (15) is rotatably mounted on the mounting base (14). The rotating frame (15) and the fixed frame (22) are connected to the support arm (3). The fourth hydraulic cylinder (16) is provided between the mounting base (14) and the rotating frame (15). The fourth hydraulic cylinder (16) is used to adjust the angle between the mounting base (14) and the rotating frame (15). The first clamping wheel (17) and the second clamping wheel (18) are both rotatably arranged around the end of the rotating frame (15) away from the mounting base (14). The fixed frame (22) is fixedly arranged on the mounting base (14). The clamping plate (23) is fixedly arranged on the side of the fixed frame (22) facing the rotating frame (15). The limiting mechanism includes four drive rods (24), a first limiting plate (27), a second limiting plate (28), and two connecting frames. The first limiting plate (27) and the second limiting plate (28) are fixedly connected to the connecting frames. The first limiting plate (27) and the second limiting plate (28) are symmetrically arranged vertically about the fixed frame (22). The drive rod (24) consists of a telescopic rod (25) and a sleeve (26). The sleeve (26) is fitted onto the telescopic rod (25). A limiting nut is threaded onto the telescopic rod (25). The drive rod (24) of the first limiting mechanism (11) is rotatably disposed between the support arm (3) and the first limiting plate (27). The drive rod (24) of the second limiting mechanism (13) is disposed between the telescopic arm (4) and the first limiting plate (27). The telescopic rod (25) of the second limiting mechanism (13) is ball-jointed with the telescopic arm (4). The sleeve (26) is ball-jointed with the first limiting plate (27). Both connecting frames are disposed on the fixed frame (22) and are symmetrically arranged about the fixed frame (22). The four drive rods (24) are arranged in pairs. The two sets of drive rods (24) are symmetrically arranged about the mounting base (14). Under the action of the drive rods (24), the first limiting plate (27) and the second limiting plate (28) press against the edge of the guardrail.

2. The wave-shaped guardrail installation auxiliary device according to claim 1, characterized in that: Two telescopic arms (4) are provided. The support arm (3) is located between the two telescopic arms (4). The telescopic arm (4) includes a rotating arm (5) and a sliding arm (6). The rotating arm (5) is rotatably connected to the rotating table (2). A first hydraulic cylinder (7) is provided between the rotating arm (5) and the support arm (3). The first hydraulic cylinder (7) adjusts the angle between the rotating arm (5) and the support arm (3). The sliding arm (6) is sleeved on the rotating arm (5). A second hydraulic cylinder (8) is provided between the sliding arm (6) and the rotating arm (5). The second hydraulic cylinder (8) is used to control the telescopic distance of the sliding arm (6).

3. The wave-shaped guardrail installation auxiliary device according to claim 1, characterized in that: Two first rotating plates (19) are provided between the first clamping wheel (17) and the rotating frame (15), and two second rotating plates (20) are provided between the second clamping wheel (18) and the rotating frame (15). A rotating shaft is provided at the end of the rotating frame (15) away from the mounting base (14). The axis of the rotating shaft is parallel to the rotation axis of the rotating frame (15). A torsion spring is provided between the rotating shaft and the rotating frame (15). The first clamping wheel (17) is rotatably connected between the two first rotating plates (19). The ends of the two first rotating plates (19) away from the first clamping wheel (17) are respectively fixed to both ends of the rotating shaft. The second clamping wheel (18) is rotatably connected between the two second rotating plates (20). The ends of the two second rotating plates (20) away from the second clamping wheel (18) rotate on the rotating shaft. The two second rotating plates (20) are located between the two first rotating plates (19). A spring is also provided between the first rotating plate (19) and the second rotating plate (20).

4. The wave-shaped guardrail installation auxiliary device according to claim 1, characterized in that: The first clamping wheel (17) and the second clamping wheel (18) are both rubber wheels, and the surface of the clamping plate (23) is provided with a layer of hard rubber.

5. The wave-shaped guardrail installation auxiliary device according to claim 1, characterized in that: The connecting frame includes a first connecting rod (30), a second connecting rod (31), a first connecting rod (32), and a second connecting rod (33). A rotating seat (34) is provided on the side of the fixed frame (22) away from the clamping plate (23). One end of the first connecting rod (30) is fixedly connected to the first limiting plate (27), and the other end of the first connecting rod (30) is rotatably connected to the rotating seat (34), with the rotation axis parallel to the rotation axis of the rotating frame (15). One end of the second connecting rod (31) is fixedly connected to the second limiting plate (28), and the other end of the second connecting rod (31) is rotatably connected to the rotating seat (34). On the seat (34), the rotation axis is parallel to the rotation axis of the rotating frame (15). The fixed frame (22) is provided with a limiting groove (35). The limiting groove (35) is horizontally set. A sliding shaft (36) is slidably arranged in the limiting groove (35). The axis of the sliding shaft (36) is parallel to the rotation axis of the rotating frame (15). One end of the first connecting rod (32) is rotatably connected to the first connecting rod (30), and the other end is rotatably connected to the sliding shaft (36). One end of the second connecting rod (33) is rotatably connected to the second connecting rod (31), and the other end is rotatably connected to the sliding shaft (36).

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