Wheel guard and steel shell hoisting device

Abstract

A kind of wheel protection ridge steel shell hoisting device belongs to wharf facility technical field, including the support frame of transverse arrangement, support frame inside hollow, the top of support frame is fixed with limiting frame, limiting frame is vertically arranged, drive frame is slidably connected with limiting frame, drive frame is parallel with support frame, both support frame and drive frame are equipped with the socket for fork insertion;Drive frame is fixedly connected with a pull rope at both ends respectively, and the both ends of support frame are slidably connected with a hook respectively, and the end of pull rope away from drive frame extends into support frame and is fixedly connected with adjacent hook;By being respectively provided with the socket for fork insertion on support frame and drive frame, it is convenient for the quick connection of fork and hoisting device, simultaneously, drive frame is used to drive pull rope to pull hook and steel shell clamping, to realize automatic connection, without rope binding and fixing, high work efficiency, and the use of fork truck, avoids manual operation close to wharf front, reduces the risk of manual falling into sea.

Description

Technical Field

[0001] This utility model relates to the field of dock facilities technology, and in particular to a steel shell hoisting device for a wheel guard. Background Technology

[0002] The wharf is mainly responsible for loading and unloading cargo ships in the port. When loading or unloading cars or other goods, the stern deck of the cargo ship needs to be hoisted onto the wharf, and the vehicles drive in or out of the deck by themselves. To prevent vehicles from accidentally driving into the sea during the process of driving in or out, a protective structure of a certain height, namely a wheel chock, is built at the edge of the wharf.

[0003] Most common wheel guards are made of reinforced concrete, which are prone to surface wear after long-term use. To enhance wear resistance, steel shells are usually installed on the outside of the reinforced concrete wheel guards. The steel shells protect the wheel guards, improve their appearance, and also enhance the impact resistance and durability of the steel shells in the reinforced concrete structure.

[0004] The length of the fenders at the pier's edge is usually around 4 meters, resulting in a long steel shell that is difficult to handle manually. Furthermore, due to its proximity to the pier's edge, manual handling poses a significant risk of falling into the sea. Forklifts are typically used for this purpose. However, due to the shape of the steel shell, ropes must be used to secure it to the forks during forklift handling. Otherwise, the steel shell is prone to slipping during transport. The rope securing method is cumbersome and severely impacts work efficiency. Utility Model Content

[0005] To address the technical problem in the existing wheel guard steel shell handling methods described above, which require forklifts and ropes for auxiliary fixing and severely affect work efficiency, this utility model provides a wheel guard steel shell hoisting device.

[0006] The technical solution of this utility model is as follows: This utility model provides a steel shell hoisting device for wheel guards, including a horizontally arranged support frame with a hollow interior. A limiting frame is fixedly installed on the top of the support frame, which is vertically arranged. A drive frame is slidably connected to the limiting frame, and the drive frame is parallel to the support frame. Both the support frame and the drive frame have slots for fork insertion. A pull rope is fixedly connected to each end of the drive frame, and a hook is slidably connected to each end of the support frame. The hooks are horizontally arranged, and the end of the pull rope away from the drive frame extends into the support frame and is fixedly connected to the adjacent hook. By providing slots for fork insertion on the support frame and the drive frame, it is convenient to quickly connect the forks with different functional components of the hoisting device. At the same time, the drive frame drives the pull rope to pull the hook and engage with the steel shell, realizing automated connection without the need for rope binding and fixing. This results in high work efficiency, and the use of forklifts avoids manual operation near the dock front, reducing the risk of human fall into the sea.

[0007] Preferably, the support frame is equipped with a spring. One end of the spring is fixedly connected to an adjacent hook, and the other end of the spring is fixedly installed inside the support frame. The spring can automatically reset the hook and separate it from the steel shell after the steel shell is placed in place by its own elasticity, eliminating the need for manual disassembly of the hook, further reducing manual operation steps and reducing labor intensity.

[0008] Preferably, the top of the support frame has a first mounting port and a second mounting port. The first mounting port is located above the spring, and the second mounting port is close to the drive frame. One end of the pull rope passes through the second mounting port and is fixedly connected to the drive frame. The first mounting port facilitates the maintenance and replacement of the internal spring by the staff, reducing the difficulty of device maintenance. The second mounting port provides a stable passage for the pull rope to pass through.

[0009] Preferably, the support frame is equipped with a reversing roller for internal rotation. The reversing roller is located below the second mounting port. The pull rope passes around the reversing roller and is fixedly connected to the drive frame. The reversing roller can change the force direction of the pull rope, so that the force of the vertical movement of the drive frame is more smoothly converted into the force of the lateral movement of the hook, reducing the frictional resistance between the pull rope and the support frame and reducing the wear rate of the pull rope. At the same time, it avoids local stress concentration caused by sudden change in the force direction of the pull rope, prevents the pull rope from breaking, further ensures the stability of the hoisting process, and reduces the risk of the steel shell slipping.

[0010] Preferably, a fixed plate is fixed at each end of the support frame, the hook passes through the fixed plate, and the two ends of the spring are fixedly connected to the hook and the fixed plate respectively. The fixed plate provides stable sliding support for the hook, ensuring that the hook will not deviate or jam when moving laterally; at the same time, the fixed plate provides a reliable fixed fulcrum for the spring, ensuring that the spring's restoring force on the hook is stable, further improving the reliability of the connection and separation of the device.

[0011] Preferably, the limiting frame is an inverted U-shaped structure, and there are two limiting frames. The two limiting frames are symmetrically arranged along the length center of the support frame. The two ends of the drive frame pass through the limiting frames and are fixedly connected to the pull ropes. The inverted U-shaped limiting frame can guide and limit the vertical sliding of the drive frame, prevent the drive frame from deviating to the left or right during movement, ensure that the pull ropes at both ends of the drive frame are evenly stressed, and avoid the hooks from being not securely engaged due to uneven tension on the pull ropes. The two symmetrically arranged limiting frames further improve the stability of the drive frame sliding, ensure that the device has a balanced clamping force on the steel shell, and prevent the steel shell from tilting or slipping during transportation.

[0012] Preferably, a fixing frame is fixed on the side of the support frame. The fixing frame is an inverted L-shaped structure. The inverted L-shaped fixing frame can assist in limiting the steel shell from both sides when the device is connected to the steel shell, preventing the steel shell from shifting laterally before the hook is engaged, and ensuring that the hook can be accurately aligned with both ends of the steel shell.

[0013] Preferably, there are two sets of fixing frames. The two fixing frames in the same set are fixed to each other on both sides of the support frame. The two sets of fixing frames are symmetrically arranged along the length center of the support frame. The two sets of symmetrically arranged fixing frames can provide auxiliary limiting from multiple points of the steel shell, further improving the stability of the steel shell during transportation and preventing the steel shell from shaking or shifting due to road bumps or forklift turning. At the same time, the symmetrical structure makes the steel shell more evenly stressed, avoiding excessive local stress on the steel shell and causing deformation, thus ensuring the appearance and structural integrity of the steel shell.

[0014] Preferably, the support frame has two first insertion ports on its side. The two first insertion ports are symmetrically arranged along the length center of the support frame. The two symmetrical first insertion ports allow the forklift forks to be evenly inserted into both sides of the support frame, ensuring that the support frame is balanced by force and preventing the device from tilting due to the offset of the fork insertion position, thereby preventing the steel shell from slipping off.

[0015] Preferably, the drive frame has two second insertion ports on its side, which are symmetrically arranged along the center of the drive frame's length. The two symmetrical second insertion ports ensure that the forks are evenly stressed when inserted into the drive frame, preventing the drive frame from tilting or jamming due to uneven stress, ensuring that the drive frame can move smoothly vertically, and thus ensuring that the force is even when the pull rope pulls the hook, ensuring that the hook is firmly engaged with the steel shell. At the same time, the symmetrical design allows the forklift forks to be evenly inserted into both sides of the drive frame, ensuring that the drive frame is balanced by force, preventing the device from tilting due to the fork insertion position being off, and thus preventing the steel shell from slipping.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are: 1. Insertion slots for fork insertion are set on the support frame and drive frame respectively, which facilitates quick connection between the forks and different functional components of the lifting device. At the same time, the drive frame drives the pull rope to pull the hook and engage with the steel shell, realizing automated connection without the need for rope binding and fixing, which has high work efficiency. Moreover, the use of forklifts avoids manual operation near the dock front, reducing the risk of human falling into the sea.

[0017] 2. One end of the spring is fixedly connected to the adjacent hook, and the other end of the spring is fixedly installed inside the support frame. The spring can automatically reset the hook and separate it from the steel shell after the steel shell is placed in place by its own elasticity, without the need for manual disassembly of the hook, further reducing manual operation steps and reducing labor intensity.

[0018] 3. The reversing roller can change the direction of force on the pull rope, so that the force of vertical movement of the drive frame is more smoothly converted into the force of lateral movement of the hook, reducing the frictional resistance between the pull rope and the support frame and reducing the wear rate of the pull rope; at the same time, it avoids local stress concentration caused by sudden change in the direction of force on the pull rope, prevents the pull rope from breaking, further ensures the stability of the hoisting process, and reduces the risk of steel shell slippage. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the steel shell hoisting device for the guard wheel chock according to one or more embodiments of the present invention; Figure 2 This is a front view (partial perspective) of the steel shell hoisting device for the wheel guard according to one or more embodiments of the present invention. The components represented by the various reference numerals in the diagram are: 1. Support frame; 2. Drive frame; 3. Limiting frame; 4. Fixing frame; 5. Hook; 6. Spring; 7. Fixing plate; 8. Pull rope; 9. Reversing roller; 10. Fixing ring; 11. First insertion port; 12. Second insertion port; 13. First mounting port; 14. Second mounting port; 15. First frame; 16. Second frame. Detailed Implementation

[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] Example 1 In a typical embodiment of this utility model, such as Figures 1-2As shown, a steel shell lifting device for wheel guards is proposed, including: a support frame 1, a drive frame 2, a limiting frame 3, hooks 5, springs 6, and pull ropes 8. Both the support frame 1 and the drive frame 2 have slots for fork insertion. The support frame 1 is a horizontally arranged elongated structure, formed by welding two channel steels together. The support frame 1 is hollow inside. Two limiting frames 3 are provided, welded and fixed to the top of the support frame 1, and symmetrically arranged along the length center of the support frame 1. The drive frame 2 is movably positioned between the two limiting frames 3, and can move vertically under the limiting of the limiting frames 3. The drive frame 2 is parallel to the support frame 1. Two hooks 5 and two springs 6 are provided, with the two hooks 5 correspondingly slidably positioned at both ends of the support frame 1. The axis of hook 5 is coaxial with the axis of support frame 1. The bent part of hook 5 extends outward from support frame 1 for connection with the steel shell of the guard wheel. One end of hook 5 located inside support frame 1 is fixedly connected to the end of drive frame 2 via pull rope 8. In this embodiment, pull rope 8 is a steel wire rope structure. When drive frame 2 moves upward, two pull ropes 8 can pull two hooks 5 closer to each other to grasp the steel shell. Spring 6 is located inside support frame 1. One end of spring 6 is fixedly connected to the corresponding hook 5, and the other end of spring 6 is fixedly located inside support frame 1. Spring 6 plays a self-resetting role. When hook 5 is pulled by pull rope 8, spring 6 is stretched accordingly. When drive frame 2 returns to its original position downward, spring 6 pulls hook 5 to return to its original position, thereby releasing the steel shell.

[0023] like Figure 2 As shown, a fixing plate 7 is welded and fixed at both ends inside the support frame 1. A fixing ring 10 is welded and fixed on the fixing plate 7. One end of the hook 5 passes through the fixing plate 7 and is fixed with the fixing ring 10. The end of the drive frame 2 is also welded and fixed with the fixing ring 10. The two ends of the pull rope 8 are fixedly connected to the hook 5 and the fixing ring 10 at the end of the drive frame 2, respectively. The two ends of the spring 6 are fixedly connected to the hook 5 and the fixing ring 10 on the fixing plate 7, respectively.

[0024] The top of the support frame 1 is provided with a first mounting port 13 and a second mounting port 14. There are two of each of the first mounting port 13 and the second mounting port 14. The first mounting port 13 is located above the spring 6 for the installation of the fixing plate 7 and the spring 6 and for subsequent maintenance. The second mounting port 14 is close to the drive frame 2. One end of the pull rope 8 passes through the second mounting port 14 and is fixedly connected to the fixing ring 10 at the end of the drive frame 2.

[0025] like Figure 2As shown, a reversing roller 9 is also rotatably installed inside the support frame 1. The reversing roller 9 is arranged horizontally, and the axis of the reversing roller 9 is perpendicular to the axis of the support frame 1. The reversing roller 9 is located below the second mounting port 14. The pull rope 8 passes around the bottom of the reversing roller 9 and is fixedly connected to the fixing ring 10 at the end of the drive frame 2 to protect the pull rope 8 and prevent friction damage between the pull rope 8 and the second mounting port 14.

[0026] In this embodiment, the hook 5 includes a curved part and a straight part. The curved part is located outside the support frame 1 for hooking with the end of the steel shell. The straight part is slidably disposed inside the support frame 1 and passes through the fixing plate 7. The straight part is fixedly connected to the fixing ring 10 at the end of the drive frame 2 by a pull rope 8.

[0027] The support frame 1 has a first insertion port 11 on its side. There are two first insertion ports 11, and the first insertion ports 11 extend laterally through the side of the support frame 1 for inserting forks, so that the lifting device can be transferred as a whole using a forklift. The two first insertion ports 11 are symmetrically arranged along the length center of the support frame 1 to ensure the overall stability of the lifting device during the transfer process.

[0028] The drive frame 2 has two second insertion ports 12 on its side, which extend laterally through the side of the drive frame 2 for inserting forks. This allows the drive frame 2 to move vertically using the forks, thereby driving the two hooks 5 to move closer together to grip the steel shell. At the same time, a forklift can be used to transfer the lifting device and the steel shell it has lifted as a whole. The two second insertion ports 12 are symmetrically arranged along the length center of the drive frame 2 to ensure overall stability during the lifting and transfer process. In this embodiment, the length center of the drive frame 2 and the length center of the support frame 1 are in the same vertical plane.

[0029] The limiting frame 3 is an inverted U-shaped structure. The limiting frame 3 is fixedly installed on the top of the support frame 1 by welding. There are two limiting frames 3, which are symmetrically arranged along the length center of the support frame 1. The two ends of the drive frame 2 pass through the limiting frame 3 and are fixedly connected to the pull rope 8. The inner cavity width of the limiting frame 3 is the same as the width of the drive frame 2, thereby limiting and guiding the drive frame 2.

[0030] In this embodiment, in order to further improve the limiting and guiding capability, a protrusion is fixedly provided on the inner wall of the limiting frame 3, and a groove is provided on the outer wall of the drive frame 2 to slide and connect with the protrusion, so as to prevent the drive frame 2 from deviating by utilizing the cooperation between the protrusion and the groove.

[0031] The drive frame 2 includes a first frame 15 and a second frame 16. Both the first frame 15 and the second frame 16 are channel steel structures. The first frame 15 and the second frame 16 are welded and fixed together. The length of the first frame 15 is longer than that of the second frame 16. The second frame 16 is fixedly installed on the top of the first frame 15. The arrangement of the first frame 15 and the second frame 16 effectively reduces the overall weight of the drive frame 2.

[0032] A fixing frame 4 is fixedly provided on the side of the support frame 1. The fixing frame 4 is an inverted L-shaped structure. The fixing frame 4 includes a horizontal section and a vertical section. The horizontal section of the fixing frame 4 is welded and fixed to the side of the support frame 1. The vertical section of the fixing frame 4 extends downward. In this embodiment, there are four fixing frames 4. Two fixing frames 4 form a group. The two fixing frames 4 in the same group are fixed to each other on both sides of the support frame 1. The two groups of fixing frames 4 are symmetrically arranged along the length center of the support frame 1. The distance between the two fixing frames 4 in the same group is the same as the width of the steel shell of the guard wheel. Thus, when hoisting the steel shell, the fixing frame 4 can be used to limit the side of the steel shell to improve the stability of the steel shell hoisting and transfer.

[0033] The specific working principle is as follows: First, the forklift forks are inserted into the first insertion port 11 of the support frame 1. The forklift is then used to transfer the lifting device as a whole to the top of the steel shell to be lifted, so that the bottom of the support frame 1 contacts the top of the steel shell. The fixing frame 4 is distributed on both sides of the steel shell, and the two hooks 5 are located on the outer sides of both ends of the steel shell. After the lifting device is placed in place, the forks are pulled out from the first insertion port 11 and inserted into the second insertion port 12 on the drive frame 2. The forks drive the drive frame 2 to move upward. The two hooks 5 are pulled closer to each other by the pull ropes 8 at both ends of the drive frame 2, so that the hooks 5 are engaged with the two ends of the steel shell, completing the automatic connection between the lifting device and the steel shell. The forklift drives the lifting device and the connected steel shell to move as a whole through the drive frame 2 connected to the forks. After the steel shell is transferred and placed in place, the forks drive the drive frame 2 to descend and reset, and under the action of the spring 6, the hooks 5 reset themselves, so that the two hooks 5 move away from each other to separate from the steel shell. The forks are pulled out from the second insertion port 12 and re-inserted into the first insertion port 11, and then the lifting device is moved.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hoisting device for the steel shell of a wheel guard, comprising: The horizontally arranged support frame (1) is characterized in that the support frame (1) is hollow inside, and a limiting frame (3) is fixedly provided on the top of the support frame (1). The limiting frame (3) is vertically arranged, and a driving frame (2) is slidably connected to the limiting frame (3). The driving frame (2) is parallel to the support frame (1). Both the support frame (1) and the driving frame (2) are provided with slots for inserting forks. A pull rope (8) is fixedly connected to each end of the driving frame (2). A hook (5) is slidably connected to each end of the support frame (1). The hook (5) is horizontally arranged, and the end of the pull rope (8) away from the driving frame (2) extends into the support frame (1) and is fixedly connected to the adjacent hook (5).

2. The wheel guard steel shell hoisting device according to claim 1, characterized in that, A spring (6) is provided inside the support frame (1). One end of the spring (6) is fixedly connected to the adjacent hook (5), and the other end of the spring (6) is fixedly installed inside the support frame (1).

3. The wheel guard steel shell hoisting device according to claim 2, characterized in that, The support frame (1) has a first mounting port (13) and a second mounting port (14) on its top. The first mounting port (13) is located above the spring (6), and the second mounting port (14) is close to the drive frame (2). One end of the pull rope (8) passes through the second mounting port (14) and is fixedly connected to the drive frame (2).

4. The wheel guard steel shell hoisting device according to claim 3, characterized in that, The support frame (1) has a reversing roller (9) inside for rotation. The reversing roller (9) is located below the second mounting port (14). The pull rope (8) passes around the reversing roller (9) and is fixedly connected to the drive frame (2).

5. The wheel guard steel shell hoisting device according to claim 2, characterized in that, A fixed plate (7) is fixed at both ends inside the support frame (1), the hook (5) passes through the fixed plate (7), and the two ends of the spring (6) are fixedly connected to the hook (5) and the fixed plate (7) respectively.

6. The wheel guard steel shell hoisting device according to claim 1, characterized in that, The limiting frame (3) is an inverted U-shaped structure. There are two limiting frames (3). The two limiting frames (3) are symmetrically arranged along the length center of the support frame (1). The two ends of the drive frame (2) pass through the limiting frame (3) and are fixedly connected to the pull rope (8).

7. The wheel guard steel shell hoisting device according to claim 1, characterized in that, A fixing frame (4) is fixed on the side of the support frame (1), and the fixing frame (4) is an inverted L-shaped structure.

8. The wheel guard steel shell hoisting device according to claim 7, characterized in that, The fixing frame (4) is provided in two sets. The two fixing frames (4) in the same set are fixed on both sides of the support frame (1). The two sets of fixing frames (4) are symmetrically arranged along the length center of the support frame (1).

9. The wheel guard steel shell hoisting device according to claim 1, characterized in that, The support frame (1) has two first sockets (11) on its side, and the two first sockets (11) are symmetrically arranged along the length center of the support frame (1).

10. The steel shell hoisting device for the wheel guard as described in claim 1, characterized in that, Two second sockets (12) are provided on the side of the drive frame (2), and the two second sockets (12) are symmetrically arranged along the length center of the drive frame (2).

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