Guardrail panel mounting lifting device

Abstract

This application discloses a guardrail installation and lifting device, including a device frame, a lifting mechanism, and a loading and unloading mechanism. The device frame includes a first frame, a second frame, and a third frame. The first frame has wheels at its bottom, the second frame is positioned above the first frame, and one side of the third frame is rotatably connected to the second frame. The lifting mechanism includes a vertical lifting component and a rotating lifting component. The vertical lifting component is positioned between the second and first frames, and the rotating lifting component is positioned between the second and third frames. The loading and unloading mechanism includes a mounting plate, a loading and unloading module, and a second drive assembly. Therefore, the lifting mechanism can perform rotational positioning operations while lifting the guardrail, ensuring the stability of the guardrail during the lifting process and effectively eliminating the need for manual control. Multiple loading and unloading modules can quickly and accurately clamp the guardrail, significantly reducing the workload of manual guidance and thus greatly improving the efficiency of the installation operation.

Description

Technical Field

[0001] This application relates to the technical field of guardrail lifting, and more particularly to a guardrail installation and lifting device. Background Technology

[0002] Highway guardrails, as important facilities for ensuring driving safety, play a vital role in separating lanes and shielding headlights from other vehicles. Highway guardrails primarily use corrugated guardrail panels, which help cushion vehicle impacts and reduce traffic accident injuries and property damage.

[0003] During the installation of highway guardrail panels, transport vehicles unload the panels one by one along a predetermined route. At least two workers then manually place these panels between adjacent guardrail posts. This step requires them to maintain the guardrail panels at a specific height to align the bolts, which not only greatly depletes the workers' physical strength but also carries the risk of injury from falling guardrail panels. Furthermore, manual handling and installation are relatively inefficient.

[0004] Currently, some locations employ auxiliary lifting methods, using simple winches and hooks to lift the top of the guardrail panels. However, during the transition from a horizontal to a vertical installation position, the guardrail panels are prone to significant swaying due to the shift in the center of gravity, resulting in poor stability and requiring manual assistance for stabilization. Furthermore, for the lifting and installation of multiple guardrail panels consecutively, each time manual intervention is required to precisely guide the hook to the correct position and perform the corresponding loading and unloading actions. While this method reduces direct physical labor, the lifting process still relies on manual guidance and monitoring, thus limiting installation efficiency. Summary of the Invention

[0005] This application aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, one objective of this application is to provide a guardrail installation and lifting device that utilizes a lifting mechanism to perform rotational displacement operations while lifting the guardrail, ensuring the stability of the guardrail during the lifting process, effectively eliminating the need for manual stabilization, and using multiple loading and unloading modules to quickly and accurately clamp the guardrail, significantly reducing the workload of manual guidance, thereby greatly improving the efficiency of the installation operation.

[0007] To achieve the above objectives, a first aspect of this application provides a guardrail installation and lifting device, comprising a device frame, a lifting mechanism, and a loading and unloading mechanism. The device frame includes a first frame, a second frame, and a third frame. The first frame has wheels at its bottom, the second frame is positioned above the first frame, and one side of the third frame is rotatably connected to the second frame. The lifting mechanism includes a vertical lifting member and a rotating lifting member, wherein the vertical lifting member is positioned between the second frame and the first frame, and the rotating lifting member is positioned between the second frame and the third frame. The loading and unloading mechanism includes a mounting plate, loading and unloading modules, and a second drive assembly. The mounting plate is connected to the other side of the third frame. At least two loading and unloading modules are arranged side-by-side, each including two symmetrically arranged limiting hooks. One end of each limiting hook is rotatably connected to the mounting plate, and a first spring is provided between the limiting hook and the mounting plate. The second drive assembly is located on the mounting plate and is connected to multiple loading and unloading modules.

[0008] In addition, the guardrail installation and lifting device proposed in this application may also have the following additional technical features: In one embodiment of this application, the back side of the mounting plate is fixedly connected to the third frame, the front side of the mounting plate is provided with a friction layer, and the front side of the mounting plate is provided with a wavy curve.

[0009] In one embodiment of this application, the rotating lifting member includes a first pull rope and a first drive assembly, wherein one end of the first pull rope is connected to the third frame, and the other end of the first pull rope is connected to the first drive assembly; the first drive assembly is disposed on the second frame.

[0010] In one embodiment of this application, the first drive assembly includes a mounting frame, a winch roller, and a drive member. The mounting frame includes two side plates and a connecting rod disposed between the two side plates. The two side plates are respectively disposed on the top surface of the second frame. The winch roller is disposed between the two side plates via the drive member, and the other end of the first pull rope is connected to the winch roller.

[0011] In one embodiment of this application, a protective component is further included. The protective component includes a rotating wheel and a bidirectional limiting member. The rotating wheel is connected to the winch roller. Multiple grooves are evenly distributed around the outer circumference of the rotating wheel, and the two side walls of the grooves are smooth arc-shaped. The bidirectional limiting member is disposed on the corresponding side plate, and a rotating member is movably disposed through the bidirectional limiting member. One end of the rotating member is provided with an incised-shaped clip, and one end of the bidirectional limiting member is provided with a notch for the incised-shaped clip to be inserted. The other end of the rotating member is provided with a one-way locking block through a second spring. The one-way locking block is located in the corresponding groove, and one side of the one-way locking block is a straight surface structure, and the other side is an arc surface structure.

[0012] In one embodiment of this application, the second frame is provided with a guide frame, and the guide frame is provided with wire holes in sequence along its direction, and the first pull rope is provided through the wire holes.

[0013] In one embodiment of this application, the second drive assembly includes two movable frames and a plurality of second pull ropes, wherein the two movable frames are slidably disposed on the back of the mounting plate via relative movable members; the second pull ropes correspond one-to-one with the limiting hooks, and one end of each second pull rope is connected to the corresponding limiting hook and the other end is connected to the corresponding movable frame.

[0014] In one embodiment of this application, the relative moving component includes a motor, a gear, and two racks meshing with the gear. The motor is mounted on the third frame, the gear is connected to the output end of the motor, and the two racks are respectively located on symmetrical sides of the gear and are respectively connected to the two moving frames.

[0015] In one embodiment of this application, the second frame is provided with limiting arms on both symmetrical sides, and the limiting arms are provided with limiting holes. The third frame is provided with a third through hole, which is located between the two limiting holes. The limiting pin is detachable and passes through the two limiting holes and the third through hole.

[0016] Compared with the prior art, the beneficial effects of this application are: 1. The lifting mechanism can perform rotation and repositioning operations while lifting the guardrail, ensuring the stability of the guardrail during the lifting process, effectively eliminating the need for manual control, reducing the degree of human intervention, and greatly improving the convenience of operation. 2. Multiple loading and unloading modules enable rapid and precise clamping of guardrail panels, facilitating their rotation and repositioning. This significantly reduces manual guidance and greatly improves installation efficiency. Furthermore, all these modules are uniformly motor-driven, simplifying the operation process and making control more intuitive and convenient, achieving savings in both time and labor. 3. The specially configured protection components provide necessary limit protection for the rotation of the winch roller, ensuring stable operation regardless of whether the winch roller rotates forward or backward, further enhancing the reliability of the entire rotation process.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a guardrail installation and lifting device according to an embodiment of this application; Figure 2 This is a side view of a guardrail mounting and lifting device according to an embodiment of this application (I). Figure 3 For the purposes of this application Figure 2 Enlarged structural diagram at point A; Figure 4 This is a side view (II) of a guardrail installation and lifting device according to an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the mounting plate of the guardrail lifting device according to an embodiment of this application; Figure 6 This is a cross-sectional structural schematic diagram of the protection mechanism for the guardrail mounting lifting device according to another embodiment of this application.

[0019] As shown in the figure: 10. Device frame; 11. First frame; 111. Traveling wheel; 12. Second frame; 13. Third frame; 131. Third perforation; 20. Lifting mechanism; 21. Vertical lifting component; 22. Rotating lifting component; 221. First pull rope; 222. First drive assembly; 2221. Mounting frame; 22211. Side plate; 22212. Connecting rod; 2222. Winching roller; 2223. Drive component; 30. Loading and unloading mechanism; 31. Mounting plate; 311. Friction layer; 32. Loading / unloading module; 321, limiting hook; 322, first spring; 33, second drive assembly; 331, moving frame; 332, second pull rope; 40, protection assembly; 41, rotating wheel; 411, groove; 42, bidirectional limiting component; 50, rotating component; 51, C-shaped clamp; 52, second spring; 53, one-way clamping block; 60, guide frame; 61, wire hole; 70, relative moving component; 71, motor; 72, gear; 73, rack; 80, limiting arm; 81, limiting hole; 90, limiting pin. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0021] The guardrail installation and lifting device according to an embodiment of this application will now be described with reference to the accompanying drawings.

[0022] like Figures 1-5 As shown, the guardrail installation and lifting device of this application embodiment may include a device frame 10, a lifting mechanism 20 and a loading and unloading mechanism 30.

[0023] The device frame 10 may include a first frame 11, a second frame 12 and a third frame 13. The bottom of the first frame 11 is provided with wheels 111, the second frame 12 is located above the first frame 11, and one side of the third frame 13 is rotatably connected to the second frame 12.

[0024] The lifting mechanism 20 may include a vertical lifting member 21 and a rotating lifting member 22, wherein the vertical lifting member 21 is disposed between the second frame 12 and the first frame 11, and the rotating lifting member 22 is disposed between the second frame 12 and the third frame 13. The rotating lifting member 22 may include a first pull rope 221 and a first drive assembly 222, wherein one end of the first pull rope 221 is connected to the third frame 13, and the other end of the first pull rope 221 is connected to the first drive assembly 222, which is disposed on the second frame 12. The first drive assembly 222 may include a mounting frame 2221, a winch roller 2222, and a drive element 2223. The mounting frame 2221 may include two side plates 22211 and a connecting rod 22212 disposed between the two side plates 22211. The two side plates 22211 are respectively disposed on the top surface of the second frame 12. The winch roller 2222 is disposed between the two side plates 22211 via the drive element 2223. The other end of the first pull rope 221 is connected to the winch roller 2222. The second frame 12 is provided with a guide frame 60, and the guide frame 60 has wire holes 61 arranged sequentially along its direction. The first pull rope 221 is disposed through the wire holes 61. The wire holes 61 limit the direction of the first pull rope 221, ensuring its smooth movement.

[0025] It should be noted that the vertical lifting member 21 described in this embodiment can be a cylinder, hydraulic cylinder, telescopic motor 71, etc., which can effectively raise and lower the second frame 12 through its operation, thereby realizing the vertical lifting function of the clamped guardrail. At the same time, the design of the rotating lifting member 22 allows the third frame 13 to rotate relative to the second frame 12, realizing the rotational displacement adjustment of the clamped guardrail.

[0026] The vertical lifting component 21 and the rotating lifting component 22 work together to perform a rotational displacement operation while lifting the guardrail, ensuring the stability of the guardrail during the lifting process, effectively eliminating the need for manual control, reducing the degree of manual intervention, and greatly improving the convenience of operation.

[0027] It should be noted that the winch roller 2222 and drive component 2223 described in this embodiment are arranged in parallel, and their linkage mechanism can refer to the relevant structural design of existing parallel winches.

[0028] The loading and unloading mechanism 30 may include a mounting plate 31, loading and unloading modules 32, and a second drive assembly 33. The mounting plate 31 is connected to the other side of the third frame 13 and is perpendicular to the third frame 13. At least two loading and unloading modules 32 are arranged side by side, and each module may include two symmetrically arranged limiting hooks 321. One end of each limiting hook 321 is rotatably connected to the mounting plate 31, and a first spring 322 is provided between the limiting hook 321 and the mounting plate 31. The second drive assembly 33 is mounted on the mounting plate 31 and is connected to multiple loading and unloading modules 32. The second drive assembly 33 may include two movable frames 331 and multiple second pull ropes 332. The two movable frames 331 are slidably mounted on the back of the mounting plate 31 via a relative movable member 70. Each second pull rope 332 corresponds to a limiting hook 321, and one end of each second pull rope 332 is connected to the corresponding limiting hook 321, while the other end is connected to the corresponding movable frame 331. The relative moving part 70 may include a motor 71, a gear 72 and two racks 73 meshing with the gear 72. The motor 71 is mounted on the third frame 13, the gear 72 is connected to the output end of the motor 71, and the two racks 73 are respectively located on the symmetrical sides of the gear 72 and are respectively connected to the two moving frames 331.

[0029] The back of the mounting plate 31 is fixedly connected to the third frame 13. The front of the mounting plate 31 is provided with a friction layer 311, and the front of the mounting plate 31 is set with a wave-shaped curve. The front of the mounting plate 31 can cooperate with the guardrail plate to be installed, thereby increasing the contact area with the guardrail plate and helping to stably clamp the guardrail plate.

[0030] It should be noted that the relative driving component 2223 described in this embodiment can drive the two moving frames 331 to move closer or further away, and then through the linkage of multiple second pull ropes 332 to rotate the limiting hooks 321, realize the relative rotation between the two limiting hooks 321, quickly complete the clamping and releasing action of the guardrail, the control is intuitive and simple, and effectively saves time and energy.

[0031] Specifically, when installing guardrail panels, personnel can use this device to assist in lifting the panels. First, the first frame 11 is moved to the predetermined position. Then, the drive unit 2223 controls the winch roller 2222 to unwind the first pull rope 221, causing the third frame 13 to rotate to a vertical position. At this point, the mounting plate 31 is in a horizontal position. Next, the vertical lifting unit 21 controls the second frame 12 to descend, and the loading and unloading mechanism 30 moves down synchronously until the mounting plate 31 contacts the guardrail panel. Subsequently, the motor 71 is started, driving the gear 72 to rotate. The two racks 73 move relative to each other, causing the two moving frames 331 to move relative to each other. This, in turn, causes the multiple second pull ropes 332 to rotate in conjunction with the limiting hooks 321, achieving near rotation between the two limiting hooks 321 and stably clamping the guardrail panel to ensure its stability.

[0032] Next, the second frame 12 is lifted by the vertical lifting component 21. The guardrail and the third frame 13 are lifted synchronously with the second frame 12. During the lifting of the guardrail, the relevant personnel control the winch roller 2222 to rotate in the opposite direction through the drive component 2223 to wind up the first pull rope 221. The third frame 13 then rotates to a horizontal state, causing the loading and unloading mechanism 30 to drive the guardrail to rotate. The guardrail rotates from a horizontal state to a vertical installation state, so that the guardrail can be rotated and repositioned at the same time as it is being lifted.

[0033] The installation of guardrail panels can then proceed.

[0034] Furthermore, such as Figure 6 As shown, the above-mentioned guardrail installation and lifting device may further include a protective component 40. The protective component 40 may include a rotating wheel 41 and a bidirectional limiting member 42. The rotating wheel 41 is connected to the winch roller 2222. Multiple grooves 411 are evenly provided on the outer circumference of the rotating wheel 41. The two side walls of the grooves 411 are both smooth arc-shaped. The bidirectional limiting member 42 is provided on the corresponding side plate 22211. A rotating member 50 is movably provided through the bidirectional limiting member 42. One end of the rotating member 50 is provided with a U-shaped clip 51. One end of the bidirectional limiting member 42 is provided with a notch for the U-shaped clip 51 to be inserted. The other end of the rotating member 50 is provided with a one-way clip 53 through a second spring 52. The one-way clip 53 is located in the corresponding groove 411. One side of the one-way clip 53 is a straight surface structure and the other side is an arc surface structure.

[0035] It should be noted that when the drive unit 2223 described in this embodiment drives the winch roller 2222 to rotate in the forward direction, the rotating wheel 41 rotates synchronously, and the groove 411 rotates accordingly, pushing the arc-shaped structure of the one-way locking block 53. This causes the one-way locking block 53 to compress the second spring 52. The one-way locking block 53 can always be in contact with the surface of the rotating wheel 41 and has the function of resisting the rotational force of the rotating wheel 41, which helps the winch roller 2222 to smoothly release the first pull rope 221, while preventing reverse rotation and loss of control. Conversely, when the winch roller 2222 needs to be rotated in the reverse direction, the operator pulls out the U-shaped clip 51 and adjusts its position to re-engage it in the notch, and flips the one-way locking block 53 to adapt to the reverse rotation requirement.

[0036] In one embodiment of this application, such as Figure 4 As shown, the second frame 12 is provided with limiting arms 80 on both sides, and the limiting arms 80 are provided with limiting holes 81. The third frame 13 is provided with a third through hole 131, which is located between the two limiting holes 81. The limiting pin 90 is detachable and passes through the two limiting holes 81 and the third through hole 131.

[0037] It should be noted that when the third frame 13 is rotated to a horizontal position, the guardrail plate clamped on it is installed vertically. At this time, the third frame 13 has a lateral support force on the guardrail plate and the loading and unloading mechanism 30. At this time, the limiting pin 90 described in this embodiment can provide additional limiting for the third frame 13, which helps to enhance the overall stability of the guardrail plate during installation.

[0038] In summary, the guardrail installation and lifting device of this application embodiment utilizes a lifting mechanism to perform rotational displacement operations while lifting the guardrail, ensuring the stability of the guardrail during the lifting process, effectively eliminating the need for manual stabilization, and using multiple loading and unloading modules to quickly and accurately clamp the guardrail, significantly reducing the workload of manual guidance, thereby greatly improving the efficiency of the installation operation.

[0039] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A guardrail installation and lifting device, characterized in that, It includes a device frame (10), a lifting mechanism (20), and a loading and unloading mechanism (30), wherein, The device frame (10) includes a first frame (11), a second frame (12) and a third frame (13), wherein the bottom of the first frame (11) is provided with a walking wheel (111), the second frame (12) is located above the first frame (11), and one side of the third frame (13) is rotatably connected to the second frame (12). The lifting mechanism (20) includes a vertical lifting member (21) and a rotating lifting member (22), wherein, The vertical lifting member (21) is located between the second frame (12) and the first frame (11); The rotating lifting member (22) is located between the second frame (12) and the third frame (13); The loading and unloading mechanism (30) includes a mounting plate (31), at least two rows of loading and unloading modules (32), and a second drive assembly (33), wherein, The mounting plate (31) is connected to the other side of the third frame (13); Each assembly / disassembly module (32) includes two symmetrically arranged limiting hooks (321), wherein one end of the limiting hook (321) is rotatably connected to the mounting plate (31), and a first spring (322) is provided between the limiting hook (321) and the mounting plate (31). The second drive assembly (33) is mounted on the mounting plate (31) and is connected to the plurality of loading and unloading modules (32).

2. The guardrail installation and lifting device according to claim 1, characterized in that, The back of the mounting plate (31) is fixedly connected to the third frame (13), and the front of the mounting plate (31) is provided with a friction layer (311), and the front of the mounting plate (31) is provided with a wavy curve.

3. The guardrail installation and lifting device according to claim 1, characterized in that, The rotating lifting component (22) includes a first pull rope (221) and a first drive assembly (222), wherein, One end of the first pull rope (221) is connected to the third frame (13), and the other end of the first pull rope (221) is connected to the first drive assembly (222); The first drive component (222) is mounted on the second frame (12).

4. The guardrail installation and lifting device according to claim 3, characterized in that, The first drive assembly (222) includes a mounting bracket (2221), a winch roller (2222), and a drive component (2223), wherein, The mounting bracket (2221) includes two side plates (22211) and a connecting rod (22212) disposed between the two side plates (22211), wherein the two side plates (22211) are respectively disposed on the top surface of the second frame (12); The winch roller (2222) is positioned between the two side plates (22211) via the drive unit (2223), and the other end of the first pull rope (221) is connected to the winch roller (2222).

5. The guardrail installation and lifting device according to claim 4, characterized in that, It also includes a protective component (40), which includes a rotating wheel (41) and a bidirectional limiting member (42), wherein, The rotating wheel (41) is connected to the winch roller (2222). The rotating wheel (41) has a plurality of grooves (411) evenly distributed on its outer circumference. The two side walls of the grooves (411) are both smooth arc-shaped. The bidirectional limiting member (42) is provided on the corresponding side plate (22211), and a rotating member (50) is movably provided through the bidirectional limiting member (42). One end of the rotating member (50) is provided with a U-shaped card (51), and one end of the bidirectional limiting member (42) is provided with a notch for the U-shaped card (51) to be inserted. The other end of the rotating member (50) is provided with a one-way card block (53) through a second spring (52). The one-way card block (53) is located in the corresponding groove (411), and one side of the one-way card block (53) is a smooth surface structure and the other side is a rough surface structure.

6. The guardrail installation and lifting device according to claim 3, characterized in that, The second frame (12) is provided with a guide frame (60), and the guide frame (60) is provided with wire holes (61) in sequence along its direction. The first pull rope (221) is provided through the wire holes (61).

7. The guardrail installation and lifting device according to claim 1, characterized in that, The second drive assembly (33) includes two movable frames (331) and a plurality of second pull ropes (332), wherein, The two movable frames (331) are slidably disposed on the back of the mounting plate (31) via a relative movable element (70); The second pull rope (332) corresponds one-to-one with the limiting hook (321), and one end of each second pull rope (332) is connected to the corresponding limiting hook (321), and the other end is connected to the corresponding moving frame (331).

8. The guardrail installation and lifting device according to claim 7, characterized in that, The relative moving part (70) includes a motor (71), a gear (72) and two racks (73) meshing with the gear (72). The motor (71) is mounted on the third frame (13), the gear (72) is connected to the output end of the motor (71), and the two racks (73) are respectively located on the symmetrical sides of the gear (72) and are respectively connected to the two moving frames (331).

9. The guardrail installation and lifting device according to claim 1, characterized in that, The second frame (12) is provided with limiting arms (80) on both sides of the symmetrical side. The limiting arms (80) are provided with limiting holes (81). The third frame (13) is provided with a third through hole (131). The third through hole (131) is located between the two limiting holes (81). The limiting pin (90) is detachable and passes through the two limiting holes (81) and the third through hole (131).

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