A wave-shaped beam steel guardrail post pulling machine

Abstract

The utility model discloses a wave beam steel guardrail stand column pile extractor belongs to guardrail stand column pile device technical field. It mainly includes base, and the middle part of base is equipped with the U type groove for placing guardrail stand column, and the both sides of U type groove are fixedly connected with first hydraulic cylinder for pile extraction and plug -in seat for transfer, and the plug -in seat is inserted with the fork of forklift, and the extension end of first hydraulic cylinder is fixedly connected with pile seat, and the both sides of pile seat are fixedly connected with second hydraulic cylinder for stand column clamping, and the extension end of second hydraulic cylinder is fixedly connected with clamp. The utility model adds the plug -in seat, and the plug -in seat is cooperated with the fork of forklift, can realize the transfer of pile extractor and the guardrail stand column after pile extraction quickly, need not manual handling, save the labor greatly, and can be nimble and appropriate different operation site, improve the mobility of equipment. The utility model is mainly used for the old pile of wave beam steel guardrail stand column and removes.

Description

Technical Field

[0001] This utility model belongs to the technical field of guardrail post extraction device, and more specifically, it relates to a corrugated beam steel guardrail post extraction machine. Background Technology

[0002] Corrugated beam steel guardrails are an important component of highway traffic safety facilities, widely used on expressways, first-class highways, and urban and rural main roads. Their core function is to absorb vehicle collision energy through their own deformation, preventing vehicles from running off the road or crossing the median strip, thereby reducing the severity of accident injuries and fatalities. The guardrail posts, serving as the supporting structure for the corrugated beams, are typically spaced 2 meters or 4 meters apart. During installation, depending on the highway and crashworthiness level, the posts are usually buried 1.0-1.5 meters underground. However, due to long-term exposure to vehicle collisions, ground settlement, corrosion, etc., the posts may tilt, become damaged, or require replacement, necessitating post removal operations.

[0003] For example, patent publication number "CN117988337A" discloses a pile extractor for highway guardrail construction, including a frame-shaped upright and a pile extractor component. The frame-shaped upright is fixedly installed on one side of the engineering vehicle. The pile extractor component includes a clamping arm fixing frame and a clamping arm. The clamping arm fixing frame is installed on the frame-shaped upright and can be raised and lowered along the frame-shaped upright to adjust the pile extracting height of the clamping arm. The clamping arm includes a C-shaped arm cylinder one and a C-shaped arm cylinder two. The C-shaped arm cylinder one is fixedly connected to the front side of the clamping arm fixing frame. The C-shaped arm cylinder two is rotatably connected to one side of the C-shaped arm cylinder one and can rotate laterally back and forth around its rotatable connection point. After the C-shaped arm cylinder two rotates laterally backward, it closes with the C-shaped arm cylinder one to clamp the guardrail pile. This device serves to assist in the correction and replacement of new piles.

[0004] However, the following problems still exist in its use: 1. The installation and fixing of the pile extractor requires workers to carry and operate it, which is labor-intensive and inefficient; 2. Because the C-shaped boom sleeves of the clamping arm are fixed in size one and two, they can only be used for piles of a specific diameter. If the diameter of the pile is significantly different, the clamping will not be secure, and the pile will slip during extraction. Therefore, the boom sleeve and rubber bushing need to be replaced, which is cumbersome and increases the construction interruption time; 3. The inverted toothed convex ring is a rigid anti-slip design. If there are cracks on the surface of the pile or the material is brittle, the inverted tooth will embed into the surface of the pile when the clamping force is too large, causing local damage. In addition, the rubber bushing is detachable. After repeated disassembly and assembly, the connection will become loose, resulting in uneven force during clamping, which will aggravate the wear of the pile. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a corrugated beam steel guardrail post pile extractor, which is equipped with a plug-in seat. The plug-in seat cooperates with the forklift forks to quickly realize the transfer of the pile extractor and the guardrail post after pile extraction. No manual handling is required, which greatly saves labor and can flexibly adapt to different work sites, improving the mobility of the equipment.

[0006] The aforementioned corrugated beam steel guardrail post extraction machine includes a base. A U-shaped groove for placing guardrail posts is provided in the middle of the base. A first hydraulic cylinder for extracting posts and a connector for transport are fixedly connected to both sides of the U-shaped groove. The connector engages with the forks on a forklift. A post extraction seat is fixedly connected to the extended end of the first hydraulic cylinder. A second hydraulic cylinder for clamping posts is fixedly connected to both sides of the post extraction seat. A clamp is fixedly connected to the extended end of the second hydraulic cylinder.

[0007] Preferably, the center of the pile-pulling base is provided with a pile-pulling hole for the guardrail post to pass through, and upright plates are fixedly connected to both sides of the pile-pulling base, and the second hydraulic cylinder is fixedly connected to the upright plates.

[0008] Preferably, the clamp includes a clamp seat and a V-shaped clamping block. The clamp seat is fixedly connected to the extended end of the first hydraulic cylinder, the middle part of the V-shaped clamping block is rotatably connected to the clamp seat, and anti-slip pads are fixedly connected to the opposite sides of the two side plates of the V-shaped clamping block.

[0009] Preferably, the V-shaped clamping block is connected to the clamping seat by fastening bolts, and multiple damping pads are respectively provided between the upper and lower end faces of the fastening bolts and the clamping seat.

[0010] Preferably, the clamp includes two symmetrically arranged clamp arms. One end of each clamp arm is rotatably connected to a second hydraulic cylinder via a hinge seat. A movable seat is fixedly connected to the extended end of the second hydraulic cylinder. A connecting rod is rotatably connected to the middle part of each of the two clamp arms. A V-shaped clamping block is rotatably connected to the other end of each clamp arm. Anti-slip pads are fixedly connected to the opposite side of the two side plates of the V-shaped clamping block.

[0011] Preferably, the anti-slip pad is provided with a mounting groove, and the anti-slip pad is fixedly connected to the side plate of the V-shaped clamping block by fasteners, and the fasteners are embedded in the mounting groove.

[0012] Preferably, a damping block is connected to the middle of the V-shaped clamping block by a limiting bolt, and rubber pads are fixedly connected to the upper and lower ends of the damping block respectively. The damping block has an assembly hole, which is rotatably connected to the clamping arm by a pin.

[0013] Preferably, the limiting bolt has at least one mounting hole that matches the assembly hole.

[0014] Preferably, the two sets of the second hydraulic cylinders and clamps are staggered.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. An additional plug-in connector is added to the base. The plug-in connector works with the forklift forks to quickly transfer the pile extractor and the guardrail posts after pile extraction without manual handling, which greatly saves labor and can flexibly adapt to different work sites, improving the mobility of the equipment.

[0017] 2. The U-shaped groove in the middle of the base runs through one side, which makes it easy to quickly put the bottom of the guardrail post into place and keep it in a vertical position, reducing the preparation time before removing the post, and ensuring that the guardrail post is not easily shifted during the removal process, thus improving the convenience of operation and the accuracy of positioning.

[0018] 3. The clamp is equipped with a V-shaped clamp that can rotate adaptively according to the diameter of the guardrail post. Combined with a rubber anti-slip pad, it can fit tightly against the post and increase friction, effectively preventing the post from slipping. The anti-slip pad can also prevent the clamp from directly contacting the post, reducing damage to the post surface.

[0019] 4. In Example 2, a combination structure of clamping arm and connecting rod is adopted. The lever principle is used to amplify the driving force of the second hydraulic cylinder, which drives the V-shaped clamping block to achieve a wider range of opening and closing. This can adapt to guardrail posts of different diameters and improve the versatility of the equipment. At the same time, the V-shaped clamping block is rotatably connected to the clamping arm. With the help of damping blocks and rubber pads, the buffering effect and structural stability are further enhanced. This allows the V-shaped clamping block to better adapt to the deformation of the post and adjust its angle. It is suitable for clamping irregular posts and the clamping is more stable. Attached Figure Description

[0020] Figure 1 A reference diagram showing the usage status of implementation 1;

[0021] Figure 2 A schematic diagram illustrating the coordination between the guardrail post and the guardrail.

[0022] Figure 3 A schematic diagram of the structure for implementation one;

[0023] Figure 4 A schematic diagram illustrating the installation of the clamp and the second hydraulic cylinder in the first embodiment;

[0024] Figure 5 A schematic diagram showing the disassembly of the clamp and the second hydraulic cylinder in the first implementation;

[0025] Figure 6 A schematic diagram illustrating the coordination between the second element and the guardrail post;

[0026] Figure 7 A schematic diagram illustrating the installation of the clamp and the second hydraulic cylinder in step two.

[0027] Figure 8 A schematic diagram of the structure of the V-shaped clamping block in section two;

[0028] Figure 9 The following is a reference diagram showing the usage status of implementation two.

[0029] In the diagram, 1. Forklift; 2. Forks; 3. Base; 301. Plug-in connector; 302. U-shaped groove; 4. Guardrail post; 5. First hydraulic cylinder; 6. Pile puller; 601. Pile puller hole; 602. Vertical plate; 7. Second hydraulic cylinder; 701. Flange; 8. Fixture; 801. Fixture base; 802. V-shaped clamp; 8021. Limit bolt; 803. Anti-slip pad; 804. Damping pad; 805. Moving seat; 806. Fixture arm; 807. Connecting rod; 808. Damping block; 8081. Rubber pad; 8082. Assembly hole; 809. Pin hole; 810. Hinge seat. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1:

[0033] like Figures 1 to 5 As shown, a corrugated beam steel guardrail post extraction machine includes a base 3, which is placed directly on the ground for support during use. A U-shaped groove 302 is provided in the middle of the base 3 for placing the guardrail post 4. The U-shaped groove extends directly through one side of the base 3. Since the upper end of the guardrail post 4 needs to pass through the extraction seat 6, the U-shaped groove 302 facilitates quick engagement of the bottom of the guardrail post 4 with the U-shaped groove 302 during the preparation stage of extraction. This allows the guardrail post 4 to be placed within the accommodating space of the U-shaped groove 302, ensuring that the guardrail post 4 remains vertical during extraction and preventing uneven force distribution due to displacement. First hydraulic cylinders 5 for extraction are fixedly connected to both sides of the U-shaped groove 302. The first hydraulic cylinders 5 provide vertical driving force, which, through telescopic movement, raises the extraction seat 6, thereby pulling the guardrail post 4 out of the ground.

[0034] Both sides of the U-shaped channel 302 are fixedly connected with a transfer connector 301. The connector 301 is used to engage with the forks 2 on the forklift 1, so that the pile extractor can be easily transferred by the forklift 1 without manual handling and installation, saving labor, improving the mobility of the equipment, adapting to the needs of different work sites, and after the pile extraction is completed, the forklift 1 can transfer the guardrail post 4 and the pile extractor together, making the operation convenient and quick.

[0035] The extended end of the first hydraulic cylinder 5 is fixedly connected to a pile-pulling seat 6. The pile-pulling seat 6 serves as the mounting carrier for the second hydraulic cylinder 7 and the clamp 8, and can transmit the driving force of the first hydraulic cylinder 5 to the clamp 8, causing the clamp 8 and the clamped column to rise synchronously. The two sides of the pile-pulling seat are respectively fixedly connected to the second hydraulic cylinder 7 for clamping the column. The extended end of the second hydraulic cylinder 7 is fixedly connected to the clamp 8. The second hydraulic cylinder 7 is used to provide horizontal clamping force, driving the clamp 8 to firmly clamp or release the guardrail column 4. The clamp 8 directly contacts the outer wall of the guardrail column 4, and fixes the guardrail column 4 through the clamping action to prevent the guardrail column 4 from slipping during the pile-pulling process.

[0036] like Figure 3 As shown, the center of the pile-pulling base 6 has a pile-pulling hole 601 for the guardrail post 4 to pass through. The pile-pulling hole 601 can be a round hole or a U-shaped slot, depending on the needs. The inner diameter of the pile-pulling hole 601 is larger than the diameter of the guardrail post 4. The pile-pulling hole 601 provides a passage for the guardrail post 4 to pass through, ensuring that the guardrail post 4 can move upward smoothly when pulled out, avoiding interference with the pile-pulling base 6. Vertical plates 602 are fixedly connected to both sides of the pile-pulling base 6. The second hydraulic cylinder 7 is fixedly connected to the vertical plates 602 through a flange 701. The vertical plates 602 are welded to the pile-pulling base 6, providing a stable mounting support for the second hydraulic cylinder 7 and enhancing the structural strength of the connection between the second hydraulic cylinder 7 and the pile-pulling base 6.

[0037] like Figure 4 and Figure 5 As shown, the clamp 8 includes a clamp base 801 and a V-shaped clamping block 802. The clamp base 801 is fixedly connected to the extended end of the first hydraulic cylinder 5 via a flange. The clamp base 801 is used to connect the second hydraulic cylinder 7 and the V-shaped clamping block 802, transmitting the driving force of the second hydraulic cylinder 7 so that the V-shaped clamping block 802 can move synchronously with the second hydraulic cylinder 7. The middle part of the V-shaped clamping block 802 is rotatably connected to the clamp base 801, enabling the V-shaped clamping block 802 to adaptively rotate at a certain angle according to the diameter of the guardrail post 4 during the clamping process, ensuring a tight fit with the surface of the V-shaped clamping block 802. Anti-slip pads 803 are fixedly connected to the opposite sides of the two side plates of the V-shaped clamping block 802. The anti-slip pads 803 are made of rubber and have deformation capability, increasing the friction between the V-shaped clamping block 802 and the guardrail post 4, preventing the guardrail post 4 from slipping during clamping, and also preventing the V-shaped clamping block 802 from directly contacting the guardrail post 4 and causing surface damage.

[0038] During installation, the V-shaped clamping block 802 is connected to the clamping seat 801 by fastening bolts. Multiple damping washers 804 are respectively provided between the upper and lower end faces of the fastening bolts and the clamping seat 801. When the V-shaped clamping block 802 rotates, the vibration and impact force during the clamping process are absorbed by the elastic deformation of the damping washers 804, reducing the risk of bolt loosening and enhancing the stability of the connection. In addition, the damping washers 804 can provide damping for rotation, preventing the V-shaped clamping block 802 from rotating arbitrarily and affecting the clamping effect.

[0039] The anti-slip mat 803 has a mounting groove. The anti-slip mat 803 is fixedly connected to the side plate of the V-shaped clamping block 802 by bolts or other fasteners. This fastening method facilitates quick replacement of the anti-slip mat 803 and prevents displacement during clamping. Furthermore, the fasteners are embedded in the mounting groove, preventing them from protruding from the anti-slip mat surface and scratching the guardrail post 4, while also ensuring the secure installation of the anti-slip mat 803.

[0040] The working process of Example 1 is as follows:

[0041] When performing the pile extraction operation of the corrugated beam steel guardrail post, the pile extractor is first transferred to the side of the guardrail post 4 to be extracted by connecting the forks 2 of the forklift 1 with the insertion seat 301 on the base 3. Then, with the cooperation of the pile extraction personnel, the forklift driver operates the forklift 1 to place the base 3 on the ground. The base 3 is used to achieve stable support for the entire equipment. The pile extraction personnel can make fine adjustments to the pile extractor so that the bottom of the guardrail post 4 is placed in the U-shaped groove 302, and ensure that the upper end of the guardrail post 4 can pass through the pile extraction hole 601 in the middle of the pile extraction seat 6, reserving an upward channel for subsequent pile extraction operations.

[0042] After preparation, the first hydraulic cylinder 5 is activated, allowing the upper end of the guardrail post 4 to pass through the post extraction hole 601. Then, the second hydraulic cylinder 7 is activated, and the horizontal driving force it provides is transmitted to the V-shaped clamp 802 through the clamp seat 801. Because the middle of the V-shaped clamp 802 is rotatably connected to the clamp seat 801, under the action of the driving force, the V-shaped clamp 802 will adaptively rotate according to the diameter of the guardrail post 4 until the anti-slip pads 803 on both sides are tightly attached to the outer wall of the guardrail post 4. The anti-slip pads 803 are made of rubber, which not only increases friction to prevent the post from slipping, but also prevents the V-shaped clamp 802 from directly contacting the post and causing surface damage. At the same time, the damping pad 804 between the fastening bolt and the clamp seat 801 absorbs vibration and impact through elastic deformation, reducing the risk of bolt loosening and providing damping for the rotation of the V-shaped clamp 802, ensuring a stable clamping effect.

[0043] After the guardrail post 4 is securely clamped by the clamp 8, the first hydraulic cylinder 5 is activated, extending its protruding end upwards and driving the fixedly connected post-pulling seat 6 to rise. The post-pulling seat 6 transmits the driving force of the first hydraulic cylinder 5 to the clamp 8, thereby causing the clamped guardrail post 4 to move upwards synchronously. After the first hydraulic cylinder 5 reaches its maximum extension length, the second hydraulic cylinder 7 retracts to release the clamp 8. At the same time, the first hydraulic cylinder 5 retracts to its original position. This clamping and post-pulling action can be repeated multiple times until the bottom of the guardrail post 4 emerges from the ground. During this process, the guardrail post 4 smoothly rises through the post-pulling hole 601, while the U-shaped groove 302 continuously limits the guardrail post 4, preventing it from shifting and causing uneven force, ultimately pulling the guardrail post 4 out of the ground.

[0044] After the pile extraction is completed, the pile extractor and the extracted guardrail post 4 can be transported to the designated location by a forklift 1 using the plug-in connector 301. The whole operation process is convenient and efficient.

[0045] Example 2:

[0046] like Figures 6 to 9 As shown, a corrugated beam steel guardrail post extraction machine includes a clamp 8 comprising two symmetrically arranged clamp arms 806. The clamp arms 806 facilitate the amplification of the driving force of the second hydraulic cylinder 7 through the lever principle, driving the V-shaped clamping block to achieve a wider range of opening and closing movements, thereby adapting to guardrail posts 4 of different diameters. One end of each clamp arm 806 is rotatably connected to the second hydraulic cylinder 7 via a hinge seat 810. Specifically, a flange 701 is fixed on the second hydraulic cylinder 7, and the hinge seat 810 is fixed on the flange 701. The hinge seat 810 provides a rotation fulcrum for the clamp arm 806, ensuring that the clamp arm 806 can rotate flexibly around the hinge point to achieve clamping or releasing actions. The extended end of the second hydraulic cylinder 7 is fixedly connected to a movable seat 805. The movable seat 805 is rotatably connected to the middle part of the two clamping arms 806, and the movable seat 805 converts the linear motion of the second hydraulic cylinder 7 into a pushing or pulling force on the connecting rod 807, driving the clamping arm 806 to move. The two connecting rods 807 respectively connect the two sets of movable seats 805 and clamping arms 806, realizing synchronous transmission of driving force, so that the two clamping arms 806 can move synchronously and symmetrically.

[0047] The other end of the clamping arm 806 is rotatably connected to a V-shaped clamping block 802. The V-shaped clamping block 802 can move with the clamping arm 806 and can adaptively adjust its angle according to the deformation of the guardrail post 4 to ensure the clamping effect. Anti-slip pads 803 are fixedly connected to the opposite sides of the two side plates of the V-shaped clamping block 802. The anti-slip pads 803 are the same as in Embodiment 1, which can enhance the clamping friction, prevent the guardrail post 4 from slipping, and protect the surface of the post.

[0048] like Figure 8As shown, a damping block 808 is connected to the middle of the V-shaped clamp 802 via a limiting bolt 8021. The damping block 808 is cylindrical, and the centerline of the limiting bolt 8021 is perpendicular to the axis of the damping block 808. The damping block 808 provides damping for the rotation of the V-shaped clamp 802. Rubber pads 8081 are fixedly connected to the upper and lower ends of the damping block 808, respectively. The rubber pads 8081 have a vibration damping effect and increase the friction between the damping block 808 and the clamp arm 806, thereby improving structural stability.

[0049] The damping block 808 has a mounting hole 8082, which is coaxially arranged with the damping block 808. The mounting hole 8082 is rotatably connected to the pin hole 809 on the clamping arm 806 via a pin. The mounting hole 8082 provides an installation position for the pin, enabling the rotatable connection between the damping block 808 and the clamping arm 806.

[0050] During manufacturing, the limiting bolt 8021 is provided with at least one mounting hole that matches the assembly hole 8082. The installation position of the damping block 808 can be adjusted by selecting different mounting holes, thereby adapting to columns of different sizes or different clamping requirements.

[0051] like Figure 6 As shown, in this embodiment, the two sets of second hydraulic cylinders 7 and clamps 8 are staggered, which avoids mutual interference between the two sets of clamps 8 during the clamping process, and at the same time makes the clamping force distribution more uniform, improving the clamping stability of the guardrail post 4. Everything else is the same as in Embodiment 1.

[0052] The overall transfer and initial positioning process in Example 2 is the same as in Example 1, except that:

[0053] During the clamping action, the second hydraulic cylinder 7 is activated, and its extended end drives the movable seat 805 to move linearly. The movable seat 805 is connected to the middle of two symmetrically arranged clamping arms 806 via a connecting rod 807. When the movable seat 805 moves, it applies a pushing or pulling force to the clamping arms 806 through the connecting rod 807. Since one end of the clamping arm 806 is rotatably connected to the second hydraulic cylinder 7 via a hinge seat 810, the hinge seat 810 acts as a fulcrum, causing the clamping arm 806 to rotate around it. By utilizing the lever principle, the driving force of the second hydraulic cylinder 7 is amplified, driving the V-shaped clamping block 802 at the other end to achieve a wide range of opening and closing.

[0054] The V-shaped clamping block 802 is rotatably connected to the clamping arm 806. During clamping, the V-shaped clamping block 802 can adaptively adjust its angle according to the size and deformation of the guardrail post 4, and work with the anti-slip pad 803 to achieve stable clamping. Simultaneously, by selecting different mounting holes on the limit bolt 8021, the position of the damping block 808 can be adjusted to adapt to the clamping requirements of posts of different sizes. Furthermore, the staggered arrangement of the two sets of second hydraulic cylinders 7 and the clamping device 8 avoids mutual interference, and the clamping force is more evenly distributed through four-directional clamping.

[0055] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corrugated beam steel guardrail post extraction machine, characterized in that: Includes a base (3), with a U-shaped groove (302) in the middle of the base (3) for placing the guardrail post (4). A first hydraulic cylinder (5) for pulling out the post and a plug-in seat (301) for transport are fixedly connected to both sides of the U-shaped groove (302). The plug-in seat (301) is engaged with the forks (2) on the forklift (1). A post-pulling seat (6) is fixedly connected to the extended end of the first hydraulic cylinder (5). A second hydraulic cylinder (7) for clamping the post is fixedly connected to both sides of the post-pulling seat. A clamp (8) is fixedly connected to the extended end of the second hydraulic cylinder (7).

2. The corrugated beam steel guardrail post extraction machine according to claim 1, characterized in that: The middle part of the pile-pulling base (6) is provided with a pile-pulling hole (601) for the guardrail post (4) to pass through. The two sides of the pile-pulling base (6) are respectively fixedly connected with upright plates (602), and the second hydraulic cylinder (7) is fixedly connected to the upright plates (602).

3. The corrugated beam steel guardrail post extraction machine according to claim 1, characterized in that: The clamp (8) includes a clamp seat (801) and a V-shaped clamp (802). The clamp seat (801) is fixedly connected to the extended end of the first hydraulic cylinder (5). The middle part of the V-shaped clamp (802) is rotatably connected to the clamp seat (801). Anti-slip pads (803) are fixedly connected to the opposite side of the two side plates of the V-shaped clamp (802).

4. The corrugated beam steel guardrail post extraction machine according to claim 3, characterized in that: The V-shaped clamp (802) is connected to the clamp seat (801) by fastening bolts, and multiple damping pads (804) are respectively provided between the fastening bolts and the upper and lower end faces of the clamp seat (801).

5. The corrugated beam steel guardrail post extraction machine according to claim 1, characterized in that: The clamp (8) includes two clamp arms (806) arranged symmetrically. One end of each clamp arm (806) is rotatably connected to the second hydraulic cylinder (7) through a hinge seat (810). The extended end of the second hydraulic cylinder (7) is fixedly connected to a movable seat (805). The movable seat (805) is rotatably connected to the middle part of the two clamp arms (806) with connecting rods (807). The other end of the clamp arm (806) is rotatably connected to a V-shaped clamping block (802). Anti-slip pads (803) are fixedly connected to the opposite side of the two side plates of the V-shaped clamping block (802).

6. A corrugated beam steel guardrail post extraction machine according to claim 3 or 5, characterized in that: The anti-slip pad (803) is provided with an installation groove. The anti-slip pad (803) is fixedly connected to the side plate of the V-shaped clamp (802) by fasteners, and the fasteners are embedded in the installation groove.

7. A corrugated beam steel guardrail post extraction machine according to claim 5, characterized in that: The middle part of the V-shaped clamp (802) is connected to a damping block (808) by a limiting bolt (8021). The upper and lower ends of the damping block (808) are respectively fixedly connected to rubber pads (8081). The damping block (808) has an assembly hole (8082) and the assembly hole (8082) is rotatably connected to the clamp arm (806) by a pin.

8. A corrugated beam steel guardrail post extraction machine according to claim 7, characterized in that: The limiting bolt (8021) has at least one mounting hole that matches the assembly hole (8082).

9. A corrugated beam steel guardrail post extraction machine according to claim 8, characterized in that: The two sets of second hydraulic cylinders (7) and clamps (8) are staggered.

Images