Auxiliary machine for disassembling and repairing corrugated guardrail panels

Abstract

This utility model relates to the technical field of corrugated guardrail assembly and disassembly equipment, specifically an auxiliary machine for the assembly and repair of corrugated guardrails. It includes a chassis frame, with a shaft fixedly connected to the lower front end of the chassis frame. Front wheels are rotatably connected to both ends of the shaft. Universal wheels are symmetrically connected to the lower rear end of the chassis frame. An upward-opening limit clamp is symmetrically connected to the upper front end of the chassis frame. A lifting mechanism is located behind the limit clamp and on the chassis frame. Compared to existing lever-type auxiliary devices, this utility model uses a crank handle to drive a drive gear, which in turn drives a driven gear to rotate a winding wheel to wind up the wire rope. Simultaneously, the first, second, and third pulleys work together to lift the corrugated guardrail, significantly reducing the force required from the operator, effectively reducing physical exertion, fatigue, and improving work efficiency. Furthermore, it eliminates the need for an excessively long lever arm, minimizing environmental space limitations and expanding the equipment's applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated guardrail disassembly and assembly equipment, specifically to an auxiliary machine for the disassembly, assembly, and maintenance of corrugated guardrails. Background Technology

[0002] Corrugated guardrails are core safety protection facilities installed on both sides of highways and in the central median, focusing on two main functions: collision avoidance and traffic guidance, and safety protection. Structurally, these guardrails use low-carbon steel plates as the main raw material, which are cold-bent into continuous "W"-shaped corrugated beams. These are then fixed to the sides of steel pipe posts embedded in the roadbed on both sides of the road using fixing devices, ultimately forming a continuous and robust protective barrier. Because a single corrugated beam is relatively heavy, highway maintenance units need specialized transport equipment to replace damaged beams.

[0003] A search revealed that CN221680556U discloses an auxiliary device for installing corrugated guardrail panels, including a moving component and a hoisting component suspended at the front end of the moving component. The moving component includes a main beam and a bracket sleeved on the main beam, with a walking structure connected to the bottom of the bracket. The bracket is sleeved at different positions on the main beam to generate different torques. The hoisting component includes a lifting beam and hook assemblies arranged at both ends of the lifting beam, with two hooks used to clamp the edges of the corrugated guardrail panels.

[0004] However, while the aforementioned corrugated guardrail installation auxiliary device achieves a labor-saving effect by pressing the second component at the rear end of the main beam and utilizing leverage, the weight of a single corrugated guardrail panel can reach several hundred kilograms. Therefore, operators must continuously apply pressure to the rear end of the main beam to maintain the lifting position. This places high demands on the operator's physical strength, and prolonged operation can easily lead to fatigue. Furthermore, the labor-saving effect based on leverage relies on a sufficiently long lever arm, which is significantly limited by environmental space in the work environment. Utility Model Content

[0005] This utility model provides an auxiliary machine for disassembling, assembling, and repairing corrugated guardrail panels to solve the problems mentioned in the background art.

[0006] To address the existing problems, this utility model provides an auxiliary machine for disassembling and repairing corrugated guardrail panels, including a chassis frame. A shaft is fixedly connected to the lower front end of the chassis frame, and front wheels are rotatably connected to both ends of the shaft. Universal wheels are symmetrically connected to the lower rear end of the chassis frame. An upward-opening limiter is symmetrically connected to the upper front end of the chassis frame, and a lifting mechanism is provided on the chassis frame behind the limiter.

[0007] The lifting mechanism includes a support frame vertically fixedly connected to the upper surface of the chassis frame. A tie rod is fixedly connected to the inner side of the upper end of the support frame. A first pulley is rotatably connected to the lower end of the support frame. An auxiliary sliding assembly is fixedly connected to the middle of the tie rod. A mounting plate is fixedly connected to the rear of the support frame and to the chassis frame. The upper surface of the mounting plate is fixedly connected to the lower end of a fixed rod. A handle is fixedly connected to the upper end of the fixed rod. A mounting component is fixedly connected to the front side of the fixed rod. A winding wheel is rotatably connected inside the mounting component. A driven gear is coaxially fixedly connected to one side of the winding reel. A drive gear meshes with one side of the driven gear. The drive gear is fixedly connected to one end of a rotating shaft rotatably connected to the side of the mounting component. A crank handle is fixedly connected to the other end of the rotating shaft. A locking lug is fixedly connected to the lower front side of the support frame and to the chassis frame. One end of a steel wire rope is wound on the winding reel. The other end of the steel wire rope passes through the lower side of the first pulley and the auxiliary sliding assembly in sequence, and is fixedly connected to a hook that engages with the locking lug. A locking assembly is provided on the side of the mounting component.

[0008] Furthermore, the auxiliary sliding assembly includes a fixing member fixedly connected to the tie member. The two sides of the fixing member are fixedly connected to the surface of the tie member through reinforcing ribs. A through groove is provided on the upper part of the fixing member. A second pulley is rotatably connected inside the through groove. A third pulley is rotatably connected below the second pulley and on the rear surface of the fixing member.

[0009] Furthermore, the locking assembly includes a through hole in the mounting piece, a locking rod slidably connected in the through hole, an anti-disengagement protrusion at one end of the locking rod near the crank handle, and a pull ring fixedly connected at the other end away from the crank handle.

[0010] Furthermore, the wire rope slides in contact with the upper surfaces of the second and third pulleys.

[0011] Furthermore, the support frame and the chassis frame are connected by a first reinforcing rod that is set at an angle.

[0012] Furthermore, the fixing rod is connected to the chassis frame by a second reinforcing rod that is inclined.

[0013] Furthermore, a connector is fixedly connected to the upper part of the through groove, and the connector and the upper end of the fixing rod are connected by a connecting rod.

[0014] Furthermore, the diameter of the driving gear is smaller than the diameter of the driven gear.

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

[0016] 1. Compared with existing lever-type auxiliary devices, this utility model uses a crank handle to drive the drive gear to rotate, which in turn drives the driven gear to rotate the winding wheel to wind up the wire rope. At the same time, the first pulley, the second pulley, and the third pulley work together to lift the corrugated guardrail, which greatly reduces the force required by the operator. The operator only needs to turn the crank handle to lift the guardrail, which effectively reduces physical exertion, reduces fatigue, and improves work efficiency. It is especially suitable for long-term continuous operation.

[0017] 2. Compared with existing lever-type auxiliary devices, this utility model does not rely on an excessively long lever arm, is less restricted by environmental space, and improves the applicability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a structural schematic diagram of the auxiliary sliding component, tie member, and connector of this utility model;

[0021] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the mounting plate structure of this utility model;

[0024] In the diagram: 1. Chassis frame; 2. Axle; 3. Front wheel; 4. Caster wheel; 5. Limiting clip; 6. Lifting mechanism; 601. Support frame; 602. Connecting component; 603. First pulley; 604. Auxiliary sliding assembly; 6041. Fixing component; 6042. Reinforcing rib; 6043. Through groove; 6044. Second pulley; 6045. Third pulley; 605. Mounting plate; 606. Fixing rod; 607. Handle; 6 08. Mounting component; 609. Rewinding reel; 610. Driven gear; 611. Drive gear; 612. Shaft; 613. Crank handle; 614. Snap-fit ​​ear; 615. Wire rope; 616. Hook; 617. Locking assembly; 6171. Through hole; 6172. Locking rod; 6173. Anti-detachment protrusion; 6174. Pull ring; 7. First reinforcing rod; 8. Second reinforcing rod; 9. Connecting component; 10. Connecting rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 1. A corrugated guardrail disassembly and maintenance auxiliary machine, including a chassis frame 1, a shaft 2 fixedly connected to the lower front end of the chassis frame 1, front wheels 3 rotatably connected to both ends of the shaft 2, universal wheels 4 symmetrically connected to the lower rear end of the chassis frame 1, and upward-opening limit cards 5 symmetrically connected to the upper front end of the chassis frame 1, and a lifting mechanism 6 is provided on the chassis frame 1 behind the limit cards 5.

[0027] The lifting mechanism 6 includes a support frame 601 vertically fixedly connected to the upper surface of the chassis frame 1. A tie member 602 is fixedly connected to the inner side of the upper end of the support frame 601. A first pulley 603 is rotatably connected to the lower end of the support frame 601. An auxiliary sliding component 604 is fixedly connected to the middle of the tie member 602. A mounting plate 605 is fixedly connected to the rear of the support frame 601 and located on the chassis frame 1. The upper surface of the mounting plate 605 is fixedly connected to the lower end of the fixing rod 606. A handle 607 is fixedly connected to the upper end of the fixing rod 606. A mounting member 608 is fixedly connected to the front side of the fixing rod 606. A winding wheel 609 is rotatably connected inside the mounting member 608. One side of the winding wheel 609... A driven gear 610 is coaxially fixedly connected to the mounting bracket 608. A drive gear 611 meshes with one side of the driven gear 610. The drive gear 611 is fixedly connected to one end of a rotating shaft 612 rotatably connected to the side of the mounting bracket 608. A crank handle 613 is fixedly connected to the other end of the rotating shaft 612. A locking ear 614 is located at the lower front side of the support frame 601 and fixedly connected to the chassis frame 1. One end of a steel wire rope 615 is wound on the winding reel 609. The other end of the steel wire rope 615 passes through the lower side of the first pulley 603 and the auxiliary sliding assembly 604 in sequence, and is fixedly connected to a hook 616 that engages with the locking ear 614. A locking assembly 617 is provided on the side of the mounting bracket 608. By providing the locking ear 614, the hook 616 can be locked onto the locking ear 614 when not in use.

[0028] The auxiliary sliding assembly 604 includes a fixing member 6041 fixedly connected to the tie member 602. The two sides of the fixing member 6041 are fixedly connected to the surface of the tie member 602 through reinforcing ribs 6042. A through groove 6043 is provided on the upper part of the fixing member 6041. A second pulley 6044 is rotatably connected inside the through groove 6043. A third pulley 6045 is rotatably connected below the second pulley 6044 and on the rear surface of the fixing member 6041.

[0029] The locking assembly 617 includes a through hole 6171 on the mounting part 608, a locking rod 6172 is slidably connected in the through hole 6171, the locking rod 6172 is provided with an anti-disengagement protrusion 6173 at one end near the crank handle 613, and a pull ring 6174 is fixedly connected at the other end away from the crank handle 613.

[0030] Among them, the wire rope 615 slides in contact with the upper surfaces of the second pulley 6044 and the third pulley 6045.

[0031] The support frame 601 and the chassis frame 1 are connected by a first reinforcing rod 7 that is set at an inclination.

[0032] The fixing rod 606 is connected to the chassis frame 1 by a second reinforcing rod 8 that is set at an angle.

[0033] The upper part of the through groove 6043 is fixedly connected to the connector 9, and the upper end of the connector 9 and the fixing rod 606 are connected by the connecting rod 10.

[0034] The diameter of the drive gear 611 is smaller than that of the driven gear 610. Because the diameter of the drive gear 611 is smaller than that of the driven gear 610, torque amplification is achieved during power transmission. When the operator turns the crank handle 613, only a small force is required to drive the winding wheel 609 to generate a large torque through gear transmission, thereby easily lifting the heavy corrugated guardrail and significantly reducing the operating intensity.

[0035] Working Principle: Holding handles 607 with both hands, push the corrugated guardrail disassembly and repair auxiliary machine. The front wheel 3 and rear caster 4 allow for flexible movement, facilitating position adjustments on-site. Push the machine near the corrugated guardrail to be processed. Use the upward-facing limiting clip 5 at the front upper part of the chassis frame 1 to initially position the guardrail, preventing lateral displacement during operation. During operation, engage the opening of the hook 616 with the lower end of the corrugated guardrail. Then, the operator turns the crank handle 613, causing the rotating shaft 612 to rotate, which in turn rotates the drive gear 611. The drive gear 611 meshes with the driven gear 610, driving the winding wheel 609 to rotate and wind up the wire rope 615. The wire rope 615 passes sequentially through the lower side of the first pulley 603 and the upper side of the second pulley 6044 and third pulley 6045 in the auxiliary sliding assembly 604. Under the winding force, the corrugated guardrail is lifted by the hook 616. Once the guardrail is raised to the required height, the winding wheel 609 is locked by the locking assembly 617. Specifically, the locking rod 6172 is pushed by hand to slide within the through hole 6171 on the mounting plate 608 by pushing the pull ring 6174. This causes the end of the locking rod 6172 with the anti-detachment protrusion 6173 to be located above the crank handle 613, preventing the crank handle 613 from rotating in the opposite direction. This ensures that the guardrail remains stably at the required height, facilitating disassembly or maintenance. When it is necessary to turn the crank handle 613, the pull ring 6714 is pulled by hand, which in turn pulls the locking rod 6172 to slide within the through hole 6171. This causes the end of the locking rod 6172 with the anti-detachment protrusion 6173 to move out of the top of the crank handle 613, at which point there is no obstruction when turning the crank handle 613.

[0036] In addition, the first reinforcing rod 7 between the support frame 601 and the chassis frame 1, and the second reinforcing rod 8 between the fixing rod 606 and the chassis frame 1, enhance the structural strength and stability of the entire device.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A corrugated guardrail disassembly and maintenance auxiliary machine, comprising a chassis frame (1), wherein a shaft (2) is fixedly connected to the lower front end of the chassis frame (1), and front wheels (3) are rotatably connected to both ends of the shaft (2), and universal wheels (4) are symmetrically connected to the lower rear end of the chassis frame (1), characterized in that: The upper front end of the chassis frame (1) is symmetrically connected with an upward-opening limiting card (5), and a lifting mechanism (6) is provided on the chassis frame (1) located behind the limiting card (5). The lifting mechanism (6) includes a support frame (601) vertically fixedly connected to the upper surface of the chassis frame (1). A tie member (602) is fixedly connected to the inner side of the upper end of the support frame (601). A first pulley (603) is rotatably connected to the lower end of the support frame (601). An auxiliary sliding component (604) is fixedly connected to the middle of the tie member (602). A mounting plate (605) is fixedly connected to the rear of the support frame (601) and to the chassis frame (1). The upper surface of the mounting plate (605) is fixedly connected to the lower end of a fixing rod (606). A handle (607) is fixedly connected to the upper end of the fixing rod (606). An installation component (608) is fixedly connected to the front side of the fixing rod (606). A winding wheel (609) is rotatably connected inside the installation component (608). A driven gear (610) is coaxially fixedly connected to one side of the 9), and a drive gear (611) meshes with one side of the driven gear (610). The drive gear (611) is fixedly connected to one end of a rotating shaft (612) rotatably connected to the side of the mounting part (608). A crank handle (613) is fixedly connected to the other end of the rotating shaft (612). A snap-fit ​​ear (614) is fixedly connected to the lower front side of the support frame (601) and the chassis frame (1). One end of a steel wire rope (615) is wound on the winding wheel (609). The other end of the steel wire rope (615) passes through the lower side of the first pulley (603) and the auxiliary sliding assembly (604) in sequence, and is fixedly connected to the snap-fit ​​hook (616) on the snap-fit ​​ear (614). A locking assembly (617) is provided on the side of the mounting part (608).

2. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The auxiliary sliding assembly (604) includes a fixing member (6041) fixedly connected to the tie member (602). The two sides of the fixing member (6041) are fixedly connected to the surface of the tie member (602) through reinforcing ribs (6042). A through groove (6043) is provided on the upper part of the fixing member (6041). A second pulley (6044) is rotatably connected inside the through groove (6043). A third pulley (6045) is rotatably connected below the second pulley (6044) and on the rear surface of the fixing member (6041).

3. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The locking assembly (617) includes a through hole (6171) opened on the mounting part (608), a locking rod (6172) is slidably connected in the through hole (6171), the locking rod (6172) is provided with an anti-disengagement protrusion (6173) at one end near the crank handle (613), and a pull ring (6174) is fixedly connected at the other end away from the crank handle (613).

4. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The wire rope (615) slides in contact with the upper surfaces of the second pulley (6044) and the third pulley (6045).

5. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The support frame (601) and the chassis frame (1) are connected by a first reinforcing rod (7) that is set at an inclination.

6. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The fixing rod (606) is connected to the chassis frame (1) by a second reinforcing rod (8) that is set at an inclination.

7. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 2, characterized in that: The upper part of the through groove (6043) is fixedly connected to a connector (9), and the upper end of the connector (9) and the fixing rod (606) are connected by a connecting rod (10).

8. The auxiliary machine for disassembling and repairing corrugated guardrail panels according to claim 1, characterized in that: The diameter of the drive gear (611) is smaller than the diameter of the driven gear (610).

Images