A gangway for use in the construction of a ship section

Abstract

The application discloses a hanging ladder for ship sectional construction, which comprises a hanging ladder body, a hook, a clamping mechanism, a self-locking mechanism and an unlocking control mechanism. The clamping mechanism comprises a clamping rod and an ejection spring, and the ejection spring releases elastic force to push the clamping rod to move towards the hook head. The self-locking mechanism comprises a self-locking part and a self-locking spring, and the self-locking spring releases elastic force to push the self-locking part to lock the clamping rod. The unlocking control mechanism comprises an operating handle and a connecting rope, and the operating handle is installed on the side of the hanging ladder body. The main control rope is pulled through the operating handle, the self-locking mechanism is remotely controlled to be unlocked, and the clamping rod is driven to move away from the hook head to realize clamping release. Compared with the traditional installation mode of a scaffold and a ladder, the hanging ladder does not need a complex erection process, and installation and dismounting operations are simple and fast, so that time and labor cost are greatly saved. The synergistic effect of the hook, the clamping mechanism and the self-locking mechanism ensures that the hanging ladder is stable and reliable after being hung, effectively prevents the hanging ladder from shaking, and reduces the safety risk of a construction personnel when working at a high place.

Description

Technical Field

[0001] This application relates to the technical field of shipbuilding auxiliary equipment, and more particularly to a hanging ladder for ship section construction. Background Technology

[0002] Ship sectional construction involves numerous modules of different shapes, sizes, and structures. During the construction process, these modules often require workers to perform various operations such as welding, assembly, and painting at a high position above the ground.

[0003] Currently, the industry commonly uses scaffolding and specialized ladders for working at heights. However, this method has many drawbacks. The installation of fixed scaffolding and ladders requires extremely high levels of expertise and safety, and must be carried out by specialized personnel. This not only demands that installers possess skilled expertise and extensive experience to ensure the structural stability and reliability of the scaffolding and ladders, but the installation process itself is also quite complex, requiring a significant amount of time and effort.

[0004] In summary, the existing methods for high-altitude operations during the construction of ship sections have many shortcomings in terms of the installation and use of scaffolding and ladders, and there is an urgent need for a more efficient, convenient, and safe solution for high-altitude operations. Summary of the Invention

[0005] The purpose of this invention is to provide a hanging ladder for the construction of ship sections, which can solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A ladder for ship section construction is provided, comprising:

[0008] The main body of the hanging ladder;

[0009] The hook includes a hook shank, a bend, and a hook head, wherein the hook shank and the hook head are respectively connected to the two ends of the bend; the end of the hook shank away from the bend is fixedly connected to the top of the main body of the hanging ladder;

[0010] A clamping mechanism includes a clamping rod and an ejector spring. The ejector spring connects the clamping rod and the hook handle. The ejector spring releases a spring force to push the clamping rod toward the hook head, so that the clamping rod cooperates with the hook head to achieve the clamping function.

[0011] The self-locking mechanism includes a self-locking part and a self-locking spring. The self-locking spring connects the self-locking part and the hook handle. The self-locking spring releases its elastic force to push the self-locking part to lock the clamping rod, thereby preventing the clamping rod from moving away from the hook head and loosening its grip.

[0012] The unlocking control mechanism includes an operating handle and a connecting rope. The operating handle is installed on the side of the main body of the ladder. The connecting rope includes a main control rope and two branch control ropes respectively connected to the main control rope. The main control rope is connected to the operating handle. One of the branch control ropes is connected to the clamping rod, and the other branch control rope is connected to the self-locking part. By pulling the main control rope with the operating handle, the self-locking mechanism can be unlocked remotely, and the clamping rod can be moved away from the hook to release the clamp.

[0013] Optionally, the hook handle includes a handle body and a mounting frame. The handle body is connected to the elbow, and the mounting frame is disposed on the side of the handle body facing away from the hook head. The clamping rod is slidably mounted on the handle body. The clamping rod has a shoulder in the middle. One end of the ejector spring abuts against the shoulder, and the other end abuts against the mounting frame to push the clamping rod toward the hook head.

[0014] Optionally, a support plate is provided on the side of the mounting frame facing away from the hook handle, and a first steering wheel is installed on the end of the support plate away from the mounting frame. The control rope passes around the first steering wheel and is connected to the clamping rod. The portion of the control rope located between the clamping rod and the first steering wheel is parallel to the axial direction of the clamping rod.

[0015] Optionally, the clamping rod is further provided with a self-locking engagement part that cooperates with the self-locking part. The self-locking engagement part includes a first ratchet; the self-locking part includes a second ratchet. Through the cooperation of the first ratchet and the second ratchet, the self-locking part can achieve unidirectional locking of the clamping rod.

[0016] Optionally, the self-locking part includes a mounting rod, a rotating mounting head, and a ratchet. The two ends of the mounting rod are respectively connected to the control rope and the rotating mounting head. The mounting rod can be slidably mounted on the hook handle. The ratchet can be unidirectionally rotated and mounted on the rotating mounting head. The second ratchet tooth is disposed on the ratchet.

[0017] Optionally, a second steering wheel is provided on the side of the hook handle, the control rope passes around the second steering wheel and is connected to the mounting rod, and the portion of the control rope located between the mounting rod and the second steering wheel is parallel to the axial direction of the mounting rod.

[0018] Optionally, the main body of the ladder includes two parallel columns and several treads vertically connected between the two columns. A hook is installed at the top of each column, and an operating handle is installed on the side wall of each column. The column is hollow and tubular. The main control rope passes through the tube of the column and is connected at both ends to the operating handle and the sub-control rope, respectively.

[0019] Optionally, the operating handle includes a handle body and a hinge seat. The hinge seat is fixed to the side wall of the column, and the middle part of the handle body is hinged to the hinge seat. The main control rope can be pulled by controlling the rotation of the handle body.

[0020] Optionally, it also includes an extension ladder, which is provided with a threaded connector; the column is fitted with a threaded connecting sleeve, which can be connected to the threaded connector to connect the extension ladder to the lower end of the main body of the hanging ladder.

[0021] Optionally, a protective ring is also included, which is fixedly connected to one side of the main body of the ladder, and a passage is formed in the protective ring to allow a person to pass through.

[0022] The beneficial effects of this application are as follows:

[0023] 1. Improved installation efficiency: Compared with traditional scaffolding and ladder installation methods, this hanging ladder does not require a complicated erection process, and the installation and dismantling operations are simple and quick, greatly saving time and labor costs.

[0024] 2. Enhanced safety: The coordinated action of the hooks, clamping mechanisms, and self-locking mechanisms ensures that the ladder is stable and reliable after being suspended, effectively preventing the ladder from swaying and reducing the safety risks for construction workers when working at heights.

[0025] 3. Easy Operation: The unlocking control mechanism allows construction workers to remotely control the installation and dismantling of the ladder from below, eliminating the need to climb to higher positions for complex operations. This facilitates quick installation and dismantling of the ladder from different locations, improving work efficiency. Importantly, users can simultaneously unlock the self-locking mechanism and loosen the clamping mechanism using a single operating handle, eliminating complicated steps and making assembly and disassembly extremely convenient.

[0026] 4. Simple structure: Only one unlocking control mechanism is needed to simultaneously control the self-locking mechanism and the clamping mechanism, which has the advantages of simple structure and low cost.

[0027] 5. High applicability: Since the distance between the clamping rod and the hook head of the hook in the clamping mechanism is adjustable, it can be appropriately adjusted according to the different thicknesses of steel plates in the ship section. It has good versatility and adaptability, and can maintain reliable clamping for steel plates of different thicknesses, which can meet the various high-altitude operation requirements in the ship section construction process. Attached Figure Description

[0028] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the hanging ladder used for ship section construction as described in the embodiments of this application;

[0030] Figure 2 This is an exploded schematic diagram of the hanging ladder used for the construction of ship sections according to an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the main body of the hanging ladder and the structure installed on it, as described in the embodiments of this application;

[0032] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0033] Figure 5 for Figure 3 Enlarged view of region B in the middle;

[0034] Figure 6 for Figure 3 A cross-sectional view of the structure shown;

[0035] Figure 7 for Figure 6 A magnified view of region C in the middle.

[0036] In the picture:

[0037] 1. Ladder body; 11. Upright; 12. Treadle; 13. Threaded connecting sleeve; 2. Hook; 21. Hook handle; 211. Handle body; 212. Mounting frame; 213. Support plate; 22. Elbow; 23. Hook head; 3. Clamping mechanism; 31. Clamping rod; 311. First ratchet; 312. Shoulder; 32. Push-out spring; 33. First steering wheel; 4. Self-locking mechanism; 41. Self-locking part; 411. Ratchet; 412. Rotating mounting head; 413. Mounting rod; 42. Self-locking spring; 43. Second steering wheel; 5. Unlocking control mechanism; 51. Connecting rope; 511. Main control rope; 512. Sub-control rope; 52. Operating handle; 521. Handle body; 522. Hinge seat; 6. Guard ring; 7. Extension ladder. Detailed Implementation

[0038] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Ship sectional construction involves numerous modules of different shapes, sizes, and structures. During the construction process, these modules often require workers to perform various operations such as welding, assembly, and painting at a high position above the ground.

[0042] Currently, the industry commonly uses scaffolding and specialized ladders for working at heights. However, this method has many drawbacks. The installation of fixed scaffolding and ladders requires extremely high levels of expertise and safety, and must be carried out by specialized personnel. This not only demands that installers possess skilled expertise and extensive experience to ensure the structural stability and reliability of the scaffolding and ladders, but the installation process itself is also quite complex, requiring a significant amount of time and effort.

[0043] In summary, the existing methods for high-altitude operations during the construction of ship sections have many shortcomings in terms of the installation and use of scaffolding and ladders, and there is an urgent need for a more efficient, convenient, and safe solution for high-altitude operations.

[0044] To overcome the above technical problems, such as Figure 1-7 As shown, this embodiment provides a hanging ladder for ship section construction, including:

[0045] Ladder main body 1;

[0046] The hook 2 includes a hook handle 21, a bend 22, and a hook head 23. The hook handle 21 and the hook head 23 are respectively connected to the two ends of the bend 22. The end of the hook handle 21 away from the bend 22 is fixedly connected to the top of the ladder body 1.

[0047] The clamping mechanism 3 includes a clamping rod 31 and an ejector spring 32. The ejector spring 32 connects the clamping rod 31 and the hook handle 21. The ejector spring 32 releases a spring force to push the clamping rod 31 toward the hook head 23, so that the clamping rod 31 cooperates with the hook head 23 to achieve the clamping function.

[0048] The self-locking mechanism 4 includes a self-locking part 41 and a self-locking spring 42. The self-locking spring 42 connects the self-locking part 41 and the hook handle 21. The self-locking spring 42 releases its elastic force to push the self-locking part 41 to lock the clamping rod 31, thereby preventing the clamping rod 31 from moving away from the hook head 23 and loosening its grip.

[0049] The unlocking control mechanism 5 includes an operating handle 52 and a connecting rope 51. The operating handle 52 is installed on the side of the main body 1 of the ladder. The connecting rope 51 includes a main control rope 511 and two branch control ropes 512 respectively connected to the main control rope 511. The main control rope 511 is connected to the operating handle 52. One of the branch control ropes 512 is connected to the clamping rod 31, and the other branch control rope 512 is connected to the self-locking part 41. By pulling the main control rope 511 through the operating handle 52, the self-locking mechanism 4 can be unlocked remotely, and the clamping rod 31 can be moved away from the hook head 23 to achieve loosening.

[0050] In the specific structure, the main body 1 of the hanging ladder is the foundation of the entire hanging ladder, providing a platform for construction workers to stand and work when working at heights. It has sufficient strength and stability to bear the weight of the personnel and their tools.

[0051] In the hook 2 structure, one end of the hook handle 21 is fixedly connected to the top of the ladder body 1, which serves to connect and transmit force, forming an integral structure between the ladder body 1 and the hook 2 part; the elbow 22 connects the hook handle 21 and the hook head 23, and its shape design allows the hook head 23 to better hook onto the upper edge of the ship section steel plate, providing a stable suspension point; the hook head 23 is set opposite to the hook handle 21, and is used to actually hook onto the inner wall of the upper edge of the ship section steel plate, which can increase the hooking distance and improve the anti-derailment ability.

[0052] In the clamping mechanism 3, the clamping rod 31, under the action of the ejector spring 32, can move towards the hook head 23 to clamp the steel plate in cooperation with the hook head 23. The end of the clamping rod 31 can have a certain shape or structure to increase the friction with the steel plate and prevent the ladder from swaying. The ejector spring 32 provides elastic force to the clamping rod 31. When the unlocking control mechanism 5 is released, the ejector spring 32 releases the elastic force and pushes the clamping rod 31 to move towards the hook head 23 to achieve the clamping function. The elastic force of the spring needs to be precisely calculated to ensure the stability of the clamping without making the unlocking too difficult.

[0053] In the self-locking mechanism 4, under the push of the self-locking spring 42, the self-locking part 41 can lock the clamping rod 31 to prevent the clamping rod 31 from loosening due to external factors during the use of the ladder, thereby ensuring the suspension stability of the ladder; the self-locking spring 42 is used to provide elastic force so that the self-locking part 41 can tightly lock the clamping rod 31.

[0054] In the structure of the unlocking control mechanism 5, the operating handle 52 is installed on the side of the main body 1 of the ladder for easy operation by construction personnel. It is generally located in the lower middle position of the main body 1 of the ladder. By pulling the operating handle 52, the action of the clamping rod 31 and the self-locking part 41 can be remotely controlled to realize the installation and disassembly of the ladder. The connecting rope 51 includes a main control rope 511 and two sub-control ropes 512. The main control rope 511 is connected to the operating handle 52, and the sub-control ropes 512 are respectively connected to the clamping rod 31 and the self-locking part 41. When the operating handle 52 pulls the main control rope 511, the sub-control ropes 512 respectively drive the clamping rod 31 away from the hook head 23 and unlock the self-locking part 41, thereby realizing the loosening and disassembly of the ladder.

[0055] During the installation of the ladder, the construction worker first pulls the main control rope 511 via the operating handle 52. The main control rope 511, through the branch control rope 512, moves the clamping rod 31 away from the hook head 23 and unlocks the self-locking part 41. At this time, the distance between the clamping rod 31 and the hook head 23 increases, allowing the construction worker to hook the hook 2 at the top of the ladder body 1 onto the upper edge of the steel plate of the ship section, so that the upper edge of the steel plate is engaged in the hook 2. After releasing the operating handle 52, the spring 32 is pushed out to release the elastic force, pushing the clamping rod 31 to move towards the hook head 23. The end of the clamping rod 31 engages with the hook head 23 to clamp the steel plate, thus firmly suspending the ladder on the ship section. At the same time, the self-locking spring 42 pushes the self-locking part 41 to lock the clamping rod 31, preventing the clamping rod 31 from loosening due to unexpected situations during the use of the ladder, ensuring the suspension stability of the ladder. When it is necessary to disassemble the ladder, pull the main control rope 511 again by operating the handle 52 to unlock the self-locking mechanism 4 and move the clamping rod 31 away from the hook head 23, so that the ladder can be easily removed from the ship section.

[0056] In summary, the ship scaffolding provided in this embodiment for sectional construction has at least the following beneficial effects:

[0057] 1. Improved installation efficiency: Compared with traditional scaffolding and ladder installation methods, this hanging ladder does not require a complicated erection process, and the installation and dismantling operations are simple and quick, greatly saving time and labor costs.

[0058] 2. Enhanced safety: The coordinated action of hook 2, clamping mechanism 3 and self-locking mechanism 4 ensures that the ladder is stable and reliable after being suspended, effectively preventing the ladder from swaying and reducing the safety risks for construction workers when working at heights.

[0059] 3. Convenient Operation: The design of the unlocking control mechanism 5 allows construction workers to remotely control the installation and dismantling of the ladder from below, eliminating the need to climb to higher places for complex operations. This facilitates quick installation and dismantling of the ladder from different locations, improving work efficiency. Importantly, users can simultaneously unlock the self-locking mechanism 4 and loosen the clamping mechanism 3 using a single operating handle 52, without complicated steps, making assembly and disassembly extremely convenient.

[0060] 4. Simple structure: Only one unlocking control mechanism 5 is needed to simultaneously control the self-locking mechanism 4 and the clamping mechanism 3, which has the advantages of simple structure and low cost.

[0061] 5. Strong applicability: Since the distance between the clamping rod 31 and the hook head 23 of the hook 2 in the clamping mechanism 3 is adjustable, it can be appropriately adjusted according to the different thicknesses of steel plates in the ship section. It has good versatility and adaptability, and can maintain reliable clamping for steel plates of different thicknesses, which can meet the various high-altitude operation requirements in the ship section construction process.

[0062] Preferably, the control rope 512 connecting the clamping rod 31 is looser than the control rope 512 connecting the self-locking part 41. This allows the self-locking mechanism 4 to be pulled first to unlock when the operating handle 52 pulls the main control rope 511, and then the clamping rod 31 to be moved. This achieves the purpose of unlocking first and then separating the clamping rod 31, avoiding the problem of difficulty in pulling the clamping rod 31 when it is not fully unlocked.

[0063] In one embodiment, reference is made to Figure 4 and Figure 7 The hook handle 21 includes a handle body 211 and a mounting frame 212. The handle body 211 is connected to the elbow 22. The mounting frame 212 is disposed on the side of the handle body 211 facing away from the hook head 23. The clamping rod 31 is slidably mounted on the handle body 211. The clamping rod 31 has a shoulder 312 in the middle. One end of the push-out spring 32 abuts against the shoulder 312 and the other end abuts against the mounting frame 212 to push the clamping rod 31 toward the hook head 23.

[0064] The hook handle 21 consists of a handle body 211 and a mounting frame 212. The handle body 211 is connected to the elbow 22. The mounting frame 212 is located on the side of the handle body 211 facing away from the hook head 23, providing a foundation and support for the installation of components such as the clamping mechanism 3, making the installation of the clamping mechanism 3 more stable and reliable.

[0065] The clamping rod 31 is slidably mounted on the handle body 211, and can slide back and forth on the handle body 211 along the direction of the hook head 23 to achieve clamping and loosening actions. The shoulder 312 design in the middle of the clamping rod 31 provides a contact point for the ejector spring 32, so that the ejector spring 32 can accurately act on the clamping rod 31, pushing it to move in the direction of the hook head 23, thereby achieving clamping of the steel plate.

[0066] When the unlocking control mechanism 5 is triggered, pulling the clamping rod 31 away from the hook head 23, the clamping rod 31 slides on the handle body 211, overcoming the elastic force of the ejector spring 32, causing the ejector spring 32 to be further compressed, increasing the distance between the clamping rod 31 and the hook head 23, thus facilitating the hanging of the hook 2 on the upper edge of the ship section steel plate. After the unlocking control mechanism 5 is released, the ejector spring 32 releases its stored elastic potential energy, pushing the clamping rod 31 towards the hook head 23, so that the end of the clamping rod 31 fits tightly with the hook head 23, clamping the steel plate and completing the suspension and fixation of the ladder.

[0067] The mounting frame 212 provides a stable mounting base for the clamping mechanism 3. The cooperation between the shoulder 312 and the ejector spring 32 ensures that the clamping rod 31 can move accurately and stably toward the hook 23, thereby improving the stability and reliability of the hanging ladder suspension.

[0068] In one embodiment, a support plate 213 is provided on the side of the mounting frame 212 facing away from the hook handle 21. A first steering wheel 33 is installed at the end of the support plate 213 away from the mounting frame 212. The control rope 512 passes around the first steering wheel 33 and is connected to the clamping rod 31. The portion of the control rope 512 located between the clamping rod 31 and the first steering wheel 33 is parallel to the axial direction of the clamping rod 31.

[0069] Specifically, the mounting frame 212 is located on the side of the handle body 211 facing away from the hook head 23. A support plate 213 is provided on the side of the frame facing away from the hook handle 21. The support plate 213 serves as support and guide, providing a foundation for the subsequent installation and steering of the control rope 512. A first steering wheel 33 is installed at the end of the support plate 213 away from the mounting frame 212. The control rope 512 passes around the first steering wheel 33 and connects to the clamping rod 31. The first steering wheel 33 can change the direction of movement of the control rope 512, allowing it to connect to the clamping rod 31 in a more suitable direction.

[0070] The portion of the control rope 512 located between the clamping rod 31 and the first steering wheel 33 is parallel to the axial direction of the clamping rod 31. This arrangement makes the force transmission of the control rope 512 more direct and uniform when pulling the clamping rod 31, reduces the angular deviation between the control rope 512 and the clamping rod 31, and improves the force transmission efficiency.

[0071] In this embodiment, the parallel axial arrangement of the control rope 512 and the clamping rod 31 makes force transmission more direct and uniform, improving the stability and response speed of the clamping rod 31's movement and ensuring smooth installation and disassembly of the ladder. The first steering wheel 33 changes the direction of movement of the control rope 512, reducing friction between the control rope 512 and other components, extending the service life of the control rope 512, and also helping to reduce operating resistance, making it easier for construction workers to operate.

[0072] In one embodiment, the clamping rod 31 is further provided with a self-locking engagement part that cooperates with the self-locking part 41. The self-locking engagement part includes a first ratchet 311; the self-locking part 41 includes a second ratchet. Through the cooperation of the first ratchet 311 and the second ratchet, the self-locking part 41 can achieve one-way locking of the clamping rod 31.

[0073] The self-locking engagement part is provided on the clamping rod 31 and includes a first ratchet 311, which is the key structure for realizing the self-locking engagement. The shape and arrangement of the first ratchet 311 match the second ratchet of the self-locking part 41 to ensure that the two can mesh tightly and realize the one-way locking function of the clamping rod 31, preventing the clamping rod 31 from accidentally loosening during the suspension of the ladder.

[0074] After the ladder is installed on the steel plate of the ship section, the clamping rod 31 moves toward the hook head 23 and clamps the steel plate under the action of the ejector spring 32. At this time, the first ratchet 311 and the second ratchet are tightly engaged, and the self-locking part 41 locks the clamping rod 31 in one direction. That is, during this process, the ejector spring 32 can still push the clamping rod 31 to move, so that the clamping rod 31 continues to approach the hook head 23 until it touches the steel plate; however, the direction of the clamping rod 31 away from the hook head 23 is locked to prevent the clamping rod 31 from moving away from the hook head 23 due to external factors (such as vibration, personnel activities, etc.) during the use of the ladder, thereby ensuring the suspension stability of the ladder.

[0075] In this embodiment, the ratchet engagement between the self-locking part and the self-locking part 41 enables locking of the clamping rods 31 at different extension distances, ensuring clamping of steel plates of varying thicknesses. This effectively prevents the clamping rods 31 from accidentally loosening during ladder suspension, ensuring the stability and reliability of the ladder and improving the safety of construction workers working at heights. The one-way locking function allows the ladder to remain stable after suspension, reducing ladder swaying caused by loosening of the clamping rods 31 and providing a more stable working platform for construction workers.

[0076] In one embodiment, the self-locking part 41 includes a mounting rod 413, a rotating mounting head 412, and a ratchet 411. The two ends of the mounting rod 413 are respectively connected to the control rope 512 and the rotating mounting head 412. The mounting rod 413 is slidably mounted on the hook handle 21. The ratchet 411 is unidirectionally rotatably mounted on the rotating mounting head 412, and the second ratchet tooth is disposed on the ratchet 411.

[0077] During the forward movement of the clamping rod 31, it drives the ratchet 411 to rotate in the forward direction. When the clamping rod 31 needs to move in the reverse direction, the reverse rotation of the ratchet 411 automatically locks (because it rotates in one direction), thus locking the clamping rod 31. This structure incorporates a ratchet 411 that can adaptively rotate during the clamping process of the clamping rod 31, thereby ensuring that the clamping rod 31 can be locked in more precise positions. Therefore, this structure improves the clamping accuracy during mounting.

[0078] In one embodiment, a second steering wheel 43 is provided on the side of the hook handle 21, the control rope 512 passes around the second steering wheel 43 and is connected to the mounting rod, and the portion of the control rope 512 located between the mounting rod and the second steering wheel 43 is parallel to the axial direction of the mounting rod.

[0079] A second steering wheel 43 is installed on the side of the hook handle 21. Its main function is to change the direction of movement of the control rope 512, allowing it to connect to the mounting rod 413 along a more suitable and smoother path. Specifically, the control rope 512 connects to the mounting rod after passing over the second steering wheel 43, and the portion of the control rope 512 between the mounting rod and the second steering wheel 43 is parallel to the axis of the mounting rod 413. This arrangement ensures that when the control rope 512 pulls the mounting rod, the direction of force transmission is consistent with the direction of movement of the mounting rod 413, thus improving force transmission efficiency.

[0080] In this embodiment, the parallel arrangement of the control rope 512 and the mounting rod 413 along their axes ensures efficient force transmission, allowing the mounting rod to slide more smoothly and thus accelerating the installation and dismantling of the ladder, improving work efficiency. The second steering wheel 43 further stabilizes the movement of the control rope 512, reducing potential swaying or deviation during pulling, thereby improving the stability of the entire ladder installation and dismantling process and reducing the risk of malfunctions due to unstable component movement. The optimized layout of the control rope 512 and the steering wheel design make the force transmission of the operating handle 52 more direct and uniform, reducing operational difficulty and allowing construction workers to more easily complete the installation and dismantling of the ladder, reducing physical exertion during operation.

[0081] In one embodiment, reference is made to Figure 3 and Figure 6 The main body 1 of the ladder includes two parallel columns 11 and several treads 12 vertically connected between the two columns 11. A hook 2 is installed at the top of each column 11 and an operating handle 52 is installed on the side wall of each column 11. The column 11 is a hollow tube. The main control rope 511 passes through the tube of the column 11 and its two ends are respectively connected to the operating handle 52 and the sub-control rope 512.

[0082] The main body 1 of the ladder includes two parallel uprights 11. The uprights 11 are hollow tubular structures. This design allows the uprights 11 to maintain a certain strength while reducing their own weight, making it easier to transport and install the ladder. Importantly, the main control rope 511 passes through the cavity of the upright 11, and its two ends are connected to the operating handle 52 and the sub-control rope 512, respectively. The hollow tubular uprights 11 provide an internal channel for the main control rope 511, protecting it from the risk of wear, pulling, or other accidental damage in the external environment. It also makes the overall appearance of the ladder neater and more orderly.

[0083] In one embodiment, the operating handle 52 includes a handle body 521 and a hinge seat 522. The hinge seat 522 is fixed to the side wall of the column 11, and the middle part of the handle body 521 is hinged to the hinge seat 522. The main control rope 511 can be pulled by controlling the rotation of the handle body 521.

[0084] This structure is similar to the brake mechanism of a bicycle handlebar. When in use, the operator can hold the upright post 11 while simultaneously pinching the operating handle 52 with their fingers to rotate it, thereby unlocking the ladder. Therefore, in this embodiment, the hinged operating handle 52 design allows construction workers to control the installation and dismantling of the ladder with a simple rotational motion, eliminating the need for complex tools or cumbersome procedures and improving work efficiency.

[0085] In one embodiment, such as Figure 1-2 It also includes an extension ladder 7, which is provided with a threaded connector; the column 11 is fitted with a threaded connector sleeve 13, which can be connected to the threaded connector to connect the extension ladder 7 to the lower end of the hanging ladder body 1.

[0086] The extension ladder 7 is an extension component of the hanging ladder, equipped with a threaded connector. The external thread of the threaded connector matches the internal thread of the threaded connecting sleeve 13, ensuring a tight and stable connection. The threaded connecting sleeve 13 is fitted onto the upright 11 and can connect with the threaded connector of the extension ladder 7, thus connecting the extension ladder 7 to the lower end of the hanging ladder body 1. The internal thread of the threaded connecting sleeve 13 and the external thread of the threaded connector fit tightly together, ensuring a secure connection.

[0087] When it is necessary to increase the length of the hanging ladder to accommodate a higher working height, align the threaded connector of the extension ladder 7 with the threaded connecting sleeve 13 at the lower end of the column 11, rotate the threaded sleeve to make the threaded connector tightly engage with the threaded connecting sleeve 13, thereby firmly connecting the extension ladder 7 to the lower end of the hanging ladder body 1.

[0088] By using the threaded connection to extend the ladder 7, the length of the ladder can be flexibly adjusted according to the actual working height requirements, adapting to ship section construction operations at different heights, thus improving the applicability and flexibility of the ladder.

[0089] In one embodiment, a protective ring 6 is also included, which is fixedly connected to one side of the main body 1 of the ladder, and a passage is formed in the protective ring 6 to allow a human body to pass through.

[0090] The safety ring 6 is fixedly connected to one side of the main body 1 of the ladder, forming a passageway that allows people to pass through. Its structure typically consists of multiple horizontal and vertical bars, forming a mesh or frame-like structure to ensure that personnel are not hindered by the safety ring 6 during passage. The height and width of the safety ring 6 are rationally designed to accommodate construction workers of different body types, ensuring their safe passage during climbing and work.

[0091] The main function of the guard ring 6 is to prevent construction workers from accidentally falling while climbing or working on the hanging ladder. Since hanging ladders are usually used for work at heights, if a construction worker loses their balance, the guard ring 6 can act as a stop, preventing the person from falling from the side of the hanging ladder, thereby greatly improving the safety of the operation.

[0092] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0093] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0094] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and 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.

[0095] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A hanging ladder for ship section construction, characterized in that, include: The main body of the hanging ladder (1); The hook (2) includes a hook handle (21), a bend (22) and a hook head (23), wherein the hook handle (21) and the hook head (23) are respectively connected to the two ends of the bend (22); the end of the hook handle (21) away from the bend (22) is fixedly connected to the top end of the ladder body (1); The clamping mechanism (3) includes a clamping rod (31) and an ejector spring (32). The ejector spring (32) connects the clamping rod (31) and the hook handle (21). The ejector spring (32) releases a spring force to push the clamping rod (31) toward the hook head (23) so that the clamping rod (31) cooperates with the hook head (23) to achieve the clamping function. The self-locking mechanism (4) includes a self-locking part (41) and a self-locking spring (42). The self-locking spring (42) connects the self-locking part (41) and the hook handle (21). The self-locking spring (42) releases its elastic force to push the self-locking part (41) to lock the clamping rod (31) to prevent the clamping rod (31) from moving away from the hook head (23) and loosening its clamp. The unlocking control mechanism (5) includes an operating handle (52) and a connecting rope (51). The operating handle (52) is installed on the side of the main body (1) of the hanging ladder. The connecting rope (51) includes a main control rope (511) and two sub-control ropes (512) respectively connected to the main control rope (511). The main control rope (511) is connected to the operating handle (52). One of the sub-control ropes (512) is connected to the clamping rod (31), and the other sub-control rope (512) is connected to the self-locking part (41). By pulling the main control rope (511) through the operating handle (52), the self-locking mechanism (4) can be unlocked remotely, and the clamping rod (31) can be moved away from the hook (23) to achieve loosening.

2. The hanging ladder for ship section construction according to claim 1, characterized in that, The hook handle (21) includes a handle body (211) and a mounting frame (212). The handle body (211) is connected to the elbow (22). The mounting frame (212) is located on the side of the handle body (211) facing away from the hook head (23). The clamping rod (31) is slidably mounted on the handle body (211). The clamping rod (31) has a shoulder (312) in the middle. One end of the push-out spring (32) abuts against the shoulder (312) and the other end abuts against the mounting frame (212) to push the clamping rod (31) toward the hook head (23).

3. The hanging ladder for ship section construction according to claim 2, characterized in that, A support plate (213) is provided on the side of the mounting frame (212) facing away from the hook handle (21). A first steering wheel (33) is installed on the end of the support plate (213) away from the mounting frame (212). The control rope (512) passes around the first steering wheel (33) and is connected to the clamping rod (31). The portion of the control rope (512) located between the clamping rod (31) and the first steering wheel (33) is parallel to the axial direction of the clamping rod (31).

4. The hanging ladder for ship section construction according to claim 1, characterized in that, The clamping rod (31) is also provided with a self-locking engagement part that cooperates with the self-locking part (41). The self-locking engagement part includes a first ratchet (311); the self-locking part (41) includes a second ratchet. Through the cooperation of the first ratchet (311) and the second ratchet, the self-locking part (41) can achieve one-way locking of the clamping rod (31).

5. The hanging ladder for ship section construction according to claim 4, characterized in that, The self-locking part (41) includes a mounting rod (413), a rotating mounting head (412), and a ratchet (411). The two ends of the mounting rod (413) are respectively connected to the control rope (512) and the rotating mounting head (412). The mounting rod (413) can be slidably mounted on the hook handle (21). The ratchet (411) can be unidirectionally rotated and mounted on the rotating mounting head (412). The second ratchet tooth is provided on the ratchet (411).

6. The hanging ladder for ship section construction according to claim 5, characterized in that, The hook handle (21) is provided with a second steering wheel (43) on its side. The control rope (512) passes around the second steering wheel (43) and is connected to the mounting rod (413). The portion of the control rope (512) located between the mounting rod (413) and the second steering wheel (43) is parallel to the axial direction of the mounting rod (413).

7. The hanging ladder for ship section construction according to claim 1, characterized in that, The main body (1) of the ladder includes two parallel columns (11) and several treads (12) vertically connected between the two columns (11). A hook (2) is installed at the top of each column (11), and an operating handle (52) is installed on the side wall of each column (11). The column (11) is a hollow tube. The main control rope (511) passes through the tube of the column (11) and its two ends are respectively connected to the operating handle (52) and the sub-control rope (512).

8. The hanging ladder for ship section construction according to claim 7, characterized in that, The operating handle (52) includes a handle body (521) and a hinge seat (522). The hinge seat (522) is fixed to the side wall of the column (11). The middle part of the handle body (521) is hinged to the hinge seat (522). The main control rope (511) can be pulled by controlling the rotation of the handle body (521).

9. The hanging ladder for ship section construction according to claim 7, characterized in that, It also includes an extension ladder (7), which is provided with a threaded connector; the column (11) is fitted with a threaded connector sleeve (13), which can be connected to the threaded connector to connect the extension ladder (7) to the lower end of the hanging ladder body (1).

10. The hanging ladder for ship section construction according to claim 1, characterized in that, It also includes a protective ring (6), which is fixedly connected to one side of the main body of the ladder (1), and a passage is formed in the protective ring (6) that allows a human body to pass through.

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