Hanging ladder for ship block construction

Abstract

The invention discloses a hanging ladder for ship block construction. The hanging ladder comprises a hanging ladder main body, a hook; 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, the operating handle is installed on the side portion of the hanging ladder body, the main control rope is pulled through the operating handle, unlocking of the self-locking mechanism can be remotely controlled, and the clamping rod is driven to be away from the hook head to achieve loosening and clamping. Compared with a traditional scaffold and ladder installation mode, the hanging ladder does not need a complex erecting process, is easy and fast to install and detach, and greatly saves time and labor cost. 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, the hanging ladder is effectively prevented from shaking, and the safety risk of constructors during high-place operation is reduced.

Description

Technical Field

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

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

[0003] Currently, when dealing with high-altitude operations, the industry generally adopts the methods of erecting scaffolding and using special ladders. However, there are many drawbacks to the existing operation methods. During the installation process of fixed scaffolding and ladders, extremely high requirements are placed on professionalism and safety, and the installation must be carried out by specialized personnel. This not only requires installers to have proficient skills and rich experience to ensure the stable and safe structure of the scaffolding and ladders, but also the installation process itself is relatively complex and requires a large amount of time and effort.

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

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

[0006] To achieve the above object, the present application adopts the following technical solutions:

[0007] Provide a hanging ladder for ship block construction, including:

[0008] A hanging ladder main body;

[0009] A hook, including a hook handle, an elbow, and a hook head. The hook handle and the hook head are respectively connected to both ends of the elbow; the end of the hook handle away from the elbow is fixedly connected to the top end of the hanging ladder main body;

[0010] A clamping mechanism, including a clamping rod and a top spring. The top spring connects the clamping rod and the hook handle. The top spring releases elastic force to push the clamping rod to move towards the hook head, so that the clamping rod cooperates with the hook head to achieve a clamping function;

[0011] A self-locking mechanism, including 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 elastic force to push the self-locking part to lock the clamping rod to limit the clamping rod from loosening away from the hook head;

[0012] The unlocking control mechanism includes an operating handle and a connecting rope. The operating handle is installed on the side of the hanging ladder main body. The connecting rope includes a main control rope and two sub-control ropes respectively connected to the main control rope. The main control rope is connected to the operating handle. One of the sub-control ropes is connected to the clamping rod, and the other sub-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 remotely unlocked, and the clamping rod can be driven away from the hook head to release the clamping.

[0013] Optionally, the hook handle includes a handle main body and a mounting frame. The handle main body is connected to the elbow. The mounting frame is arranged on one side of the handle main body facing away from the hook head. The clamping rod is slidably installed on the handle main body. A shoulder is provided in the middle of the clamping rod. One end of the ejecting spring abuts against the shoulder, and the other end abuts against the mounting frame to push the clamping rod to move towards the hook head.

[0014] Optionally, a support plate is arranged on one side of the mounting frame facing away from the hook handle. A first steering wheel is installed at the end of the support plate away from the mounting frame. The sub-control rope bypasses the first steering wheel and is connected to the clamping rod. The part of the sub-control rope between the clamping rod and the first steering wheel is axially parallel to the clamping rod.

[0015] Optionally, a self-locking cooperation part for cooperating with the self-locking part is further provided on the clamping rod. The self-locking cooperation part includes a first ratchet tooth. The self-locking part includes a second ratchet tooth. Through the cooperation of the first ratchet tooth and the second ratchet tooth, the self-locking part realizes the one-way 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 sub-control rope and the rotating mounting head. The mounting rod is slidably installed on the hook handle. The ratchet is installed on the rotating mounting head in a one-way rotatable manner. The second ratchet tooth is arranged on the ratchet.

[0017] Optionally, a second steering wheel is arranged on the side of the hook handle. The sub-control rope bypasses the second steering wheel and is connected to the mounting rod. The part of the sub-control rope between the mounting rod and the second steering wheel is parallel to the axis direction of the mounting rod.

[0018] Optionally, the hanging ladder main body includes two parallel columns and a plurality of 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 a hollow tubular shape. The main control rope passes through the lumen of the column and is respectively connected to the operating handle and the sub-control rope at both ends.

[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 of the handle body is hinged to the hinge seat. By controlling the rotation of the handle body, the main control rope can be pulled to move.

[0020] Optionally, it further includes an extension ladder, and the extension ladder is provided with a threaded connector; a threaded connection sleeve is sleeved on the column, and the threaded connection sleeve can be connected to the threaded connector to connect the extension ladder to the lower end of the hanging ladder body.

[0021] Optionally, it further includes a guard ring, and the guard ring is fixedly connected to one side of the hanging ladder body, and a passage allowing a human body to pass through is formed in the guard ring.

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

[0023] 1. Improve installation efficiency: Compared with the traditional installation methods of scaffolding and ladders, this hanging ladder does not require a complex erection process, and the installation and disassembly operations are simple and fast, greatly saving time and labor costs.

[0024] 2. Enhance safety: The coordinated action of the hook, the clamping mechanism and the self-locking mechanism ensures that the hanging ladder is stable and reliable after being hung, effectively preventing the hanging ladder from shaking and reducing the safety risks of construction workers working at heights.

[0025] 3. Convenient operation: The design of the unlocking control mechanism enables construction workers to remotely control the installation and disassembly of the hanging ladder below the hanging ladder, without having to climb to a high place for complex operations, facilitating construction workers to quickly install and disassemble the hanging ladder at different positions and improving work efficiency. Importantly, users can simultaneously unlock the self-locking mechanism and loosen the clamping of the clamping mechanism through an operating handle, without complex steps, and the disassembly and assembly convenience is extremely high.

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

[0027] 5. Strong 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 steel plates of different thicknesses of the ship section, and it has good versatility and adaptability. Moreover, it can maintain a reliable clamping degree for steel plates of different thicknesses and can meet various high-altitude operation requirements during the ship section construction process. Description of the Drawings

[0028] The following further elaborates on this application in detail according to the drawings and embodiments.

[0029] Figure 1 It is a schematic structural diagram of the hanging ladder for ship section construction described in the embodiment of this application;

[0030] Figure 2 Explosion schematic diagram of the hanging ladder for ship section construction described in the embodiments of the present application;

[0031] Figure 3 Schematic diagram of the hanging ladder main body and the structures installed thereon described in the embodiments of the present application;

[0032] Figure 4 is Figure 3 Enlarged view of area A in

[0033] Figure 5 is Figure 3 Enlarged view of area B in

[0034] Figure 6 is Figure 3 Cross-sectional view of the structure shown in

[0035] Figure 7 is Figure 6 Enlarged view of area C in

[0036] In the figure:

[0037] 1. Hanging ladder main body; 11. Column; 12. Tread bar; 13. Threaded connecting sleeve; 2. Hook; 21. Hook handle; 211. Handle main body; 212. Installation frame; 213. Support plate; 22. Elbow; 23. Hook head; 3. Clamping mechanism; 31. Clamping rod; 311. First ratchet tooth; 312. Shoulder; 32. Ejecting spring; 33. First steering wheel; 4. Self-locking mechanism; 41. Self-locking part; 411. Ratchet wheel; 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 main body; 522. Hinge seat; 6. Guard ring; 7. Extension ladder. Detailed implementation manners

[0038] To make the technical problems solved by the present application, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0039] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0041] The ship section construction involves numerous section modules with different shapes, sizes, and structures. During the construction process, construction workers often need to perform various operations such as welding, assembly, and painting at positions relatively high above the ground.

[0042] Currently, when dealing with high-altitude operations, the industry generally adopts the method of erecting scaffolding and special ladders. However, there are many drawbacks to the existing operation method. During the installation process of fixed scaffolding and ladders, extremely high requirements are placed on professionalism and safety, and they must be installed by specialized personnel. This not only requires installers to have proficient skills and rich experience to ensure the stable and safe structure of the scaffolding and ladders, but also the installation process itself is relatively complex and requires a large amount of time and effort.

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

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

[0045] The hanging ladder main body 1;

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

[0047] The clamping mechanism 3 includes a clamping rod 31 and an ejecting spring 32. The ejecting spring 32 is connected to the clamping rod 31 and the hook handle 21. The ejecting spring 32 releases elastic force to push the clamping rod 31 to move towards 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 is connected to the self-locking part 41 and the hook handle 21. The self-locking spring 42 releases elastic force to push the self-locking part 41 to lock the clamping rod 31, so as to limit the clamping rod 31 from loosening away from the hook head 23.

[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 hanging ladder main body 1. 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 with the operating handle 52, the self-locking mechanism 4 can be remotely unlocked, and the clamping rod 31 can be driven to move away from the hook head 23 to achieve loosening of the clamp.

[0050] In the specific structure, the hanging ladder main body 1 is the basic part of the entire hanging ladder, providing a standing and working platform for construction workers during high-altitude operations. It has sufficient strength and stability to bear the weight of personnel and their carried tools.

[0051] In the structure of the hook 2, one end of the hook handle 21 is fixedly connected to the top end of the hanging ladder main body 1, playing a role in connecting and transmitting force, forming an integral structure between the hanging ladder main body 1 and the hook 2 part. The elbow 22 connects the hook handle 21 and the hook head 23, and its shape design enables the hook head 23 to better hook the upper edge of the ship section steel plate, providing a stable hanging point. The hook head 23 is arranged opposite to the hook handle 21, and is used to actually hook the inner wall of the upper edge of the ship section steel plate, which can increase the hanging distance and improve the anti-disconnection ability.

[0052] In the structure of the clamping mechanism 3, under the action of the ejecting spring 32, the clamping rod 31 can move towards the hook head 23 and cooperate with the hook head 23 to clamp the steel plate. The end of the clamping rod 31 can be designed with a certain shape or structure to increase the friction force with the steel plate and prevent the hanging ladder from shaking. The ejecting spring 32 provides elastic force for the clamping rod 31. When the unlocking control mechanism 5 is loosened, the ejecting spring 32 releases the elastic force and pushes the clamping rod 31 towards the hook head 23 to achieve the clamping function. The magnitude of the elastic force of the spring needs to be accurately calculated to ensure the stability of clamping without causing too much difficulty in unlocking.

[0053] In the structure of 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 hanging ladder, thus ensuring the hanging stability of the hanging 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 hanging ladder main body 1 for the convenience of construction workers to operate. It is generally set at the middle and lower position of the hanging ladder main body 1. By pulling the operating handle 52, the actions of the clamping rod 31 and the self-locking part 41 can be remotely controlled to achieve the installation and disassembly of the hanging 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 clamping rod 31 is driven away from the hook head 23 and the self-locking part 41 is unlocked through the sub-control ropes 512, thus realizing the loosening and disassembly of the hanging ladder.

[0055] When installing the hanging ladder, the construction worker first pulls the main control rope 511 through the operating handle 52. The main control rope 511 drives the clamping rod 31 away from the hook head 23 and unlocks the self-locking part 41 through the sub-control ropes 512 respectively. At this time, the distance between the clamping rod 31 and the hook head 23 expands, and the construction worker can hang the hook 2 at the top of the hanging ladder main body 1 on the upper edge of the ship section steel plate, so that the upper edge of the steel plate is clamped into the hook 2. After loosening the operating handle 52, the ejecting spring 32 releases the elastic force and pushes the clamping rod 31 towards the hook head 23. The end of the clamping rod 31 cooperates with the hook head 23 to clamp the steel plate, thus firmly hanging the hanging 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 to prevent the clamping rod 31 from loosening due to unexpected situations during the use of the hanging ladder and ensure the hanging stability of the hanging ladder. When it is necessary to disassemble the hanging ladder, pull the main control rope 511 through the operating handle 52 again to unlock the self-locking mechanism 4 and drive the clamping rod 31 away from the hook head 23, and then the hanging ladder can be easily removed from the ship section.

[0056] In summary, the hanging ladder for ship section construction provided by this embodiment has at least the following beneficial effects:

[0057] 1. Improve installation efficiency: Compared with the traditional scaffolding and ladder installation methods, this hanging ladder does not require a complex erection process. The installation and disassembly operations are simple and fast, greatly saving time and labor costs.

[0058] 2. Enhance safety: The coordinated action of the hook 2, the clamping mechanism 3 and the self-locking mechanism 4 ensures that the hanging ladder is stable and reliable after being hung, effectively preventing the hanging ladder from shaking and reducing the safety risks of construction workers during high-altitude operations.

[0059] 3. Convenient operation: The design of the unlocking control mechanism 5 enables construction workers to remotely control the installation and disassembly of the hanging ladder below the ladder, without having to climb to a high place for complex operations. It is convenient for construction workers to quickly install and disassemble the hanging ladder at different positions, improving work efficiency. Importantly, users can simultaneously unlock the self-locking mechanism 4 and loosen the clamping of the clamping mechanism 3 through an operating handle 52, without complex steps, and the disassembly and assembly convenience is extremely high.

[0060] 4. Simple structure: Only one unlocking control mechanism 5 is set to meet the function of simultaneously controlling the self-locking mechanism 4 and the clamping mechanism 3, with 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 the steel plates of the ship section. It has good versatility and adaptability, and can maintain a reliable clamping degree for steel plates of different thicknesses, and can meet various high-altitude operation requirements during the construction of ship sections.

[0062] Preferably, the sub-control rope 512 connecting the clamping rod 31 is looser than the sub-control rope 512 connecting the self-locking part 41. When the operating handle 52 pulls the main control rope 511, the self-locking mechanism 4 will be pulled to unlock first, and then the clamping rod 31 will be pulled to move, achieving the purpose of unlocking first and then separating the clamping rod 31, and avoiding the problem of difficult pulling caused by pulling the clamping rod 31 without complete unlocking.

[0063] In an embodiment, referring to Figure 4 and Figure 7 , the hook handle 21 includes a handle main body 211 and a mounting frame 212. The handle main body 211 is connected to the elbow 22, and the mounting frame 212 is arranged on the side of the handle main body 211 facing away from the hook head 23; the clamping rod 31 is slidably installed on the handle main body 211, a shoulder 312 is provided in the middle of the clamping rod 31, and one end of the ejecting spring 32 abuts against the shoulder 312, and the other end abuts against the mounting frame 212 to push the clamping rod 31 to move towards the hook head 23.

[0064] The hook handle 21 is composed 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 the actions of clamping and loosening. The shoulder 312 designed in the middle of the clamping rod 31 provides a contact point for the ejecting spring 32, enabling the ejecting spring 32 to accurately act on the clamping rod 31 and push it in the direction of the hook head 23, thereby achieving the clamping of the steel plate.

[0066] When the unlocking control mechanism 5 is triggered and the clamping rod 31 is pulled away from the hook head 23, the clamping rod 31 slides on the handle body 211, overcoming the elastic force of the ejecting spring 32, further compressing the ejecting spring 32, 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 releasing the unlocking control mechanism 5, the ejecting spring 32 releases the stored elastic potential energy, pushing the clamping rod 31 in the direction of the hook head 23, making the end of the clamping rod 31 closely cooperate with the hook head 23 to clamp the steel plate and complete the suspension and fixation of the hanging ladder.

[0067] The mounting frame 212 provides a stable installation foundation for the clamping mechanism 3. The cooperation between the shoulder 312 and the ejecting spring 32 ensures that the clamping rod 31 can accurately and stably move in the direction of the hook head 23, 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 sub-control rope 512 bypasses the first steering wheel 33 and is connected to the clamping rod 31. The part of the sub-control rope 512 between the clamping rod 31 and the first steering wheel 33 is axially parallel to 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 mounting frame 212 facing away from the hook handle 21. The support plate 213 plays a role of support and guidance, providing a foundation for the subsequent installation and turning of the sub-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 sub-control rope 512 bypasses the first steering wheel 33 and is connected to the clamping rod 31. The first steering wheel 33 can change the movement direction of the sub-control rope 512, enabling the sub-control rope 512 to be connected to the clamping rod 31 along a more appropriate direction.

[0070] The part of the sub-control rope 512 located between the clamping rod 31 and the first steering wheel 33 is axially parallel to the clamping rod 31. This layout makes the force transmission more direct and uniform when the sub-control rope 512 pulls the clamping rod 31, reduces the angular deviation between the sub-control rope 512 and the clamping rod 31, and improves the force transmission efficiency.

[0071] In this embodiment, based on the layout where the sub-control rope 512 is axially parallel to the clamping rod 31, the force transmission is more direct and uniform, improving the stability and response speed of the movement of the clamping rod 31, and ensuring the smoothness of the hanging ladder during installation and disassembly. The setting of the first steering wheel 33 changes the movement direction of the sub-control rope 512, reduces the friction between the sub-control rope 512 and other components, extends the service life of the sub-control rope 512, and also helps to reduce the operating resistance, making it easier for the construction workers to operate.

[0072] In one embodiment, a self-locking cooperation part cooperating with the self-locking part 41 is further provided on the clamping rod 31. The self-locking cooperation part includes a first ratchet tooth 311; the self-locking part 41 includes a second ratchet tooth. Through the cooperation of the first ratchet tooth 311 and the second ratchet tooth, the self-locking part 41 realizes the one-way locking of the clamping rod 31.

[0073] Among them, the self-locking cooperation part is arranged on the clamping rod 31 and includes a first ratchet tooth 311. This is the key structure for realizing self-locking cooperation. The shape and arrangement of the first ratchet tooth 311 match the second ratchet tooth of the self-locking part 41 to ensure that the two can be tightly engaged, realizing the one-way locking function of the clamping rod 31 and preventing the clamping rod 31 from loosening accidentally during the hanging process of the hanging ladder.

[0074] After the hanging ladder is installed on the ship section steel plate, the clamping rod 31 moves towards the hook head 23 under the action of the ejecting spring 32 and clamps the steel plate. At this time, the first ratchet tooth 311 and the second ratchet tooth are tightly engaged, and the self-locking part 41 performs one-way locking on the clamping rod 31. That is, during this process, the ejecting 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 abuts against the steel plate; but 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 hanging ladder, thus ensuring the hanging stability of the hanging ladder.

[0075] In this embodiment, the self-locking engaging portion and the ratchet teeth of the self-locking portion 41 are engaged, which can lock the clamping rod 31 with different extended distances, achieve the purpose of clamping steel plates with different thicknesses, effectively prevent the clamping rod 31 from accidentally loosening during the hanging process of the hanging ladder, ensure the stability and reliability of the hanging ladder, and thus improve the safety of construction workers during high-altitude operations. The one-way locking function enables the hanging ladder to maintain a stable state after being hung, reduces the shaking of the hanging ladder caused by the loosening of the clamping rod 31, and provides a more stable working platform for construction workers.

[0076] In one embodiment, the self-locking portion 41 includes a mounting rod 413, a rotating mounting head 412, and a ratchet wheel 411. The two ends of the mounting rod 413 are respectively connected to the sub-control rope 512 and the rotating mounting head 412. The mounting rod 413 is slidably mounted on the hook handle 21. The ratchet wheel 411 is rotatably mounted on the rotating mounting head 412 in a one-way manner, and the second ratchet teeth are provided on the ratchet wheel 411.

[0077] During the process of the clamping rod 31 moving along the teeth, it can push the ratchet wheel 411 to rotate forward. When the clamping rod 31 needs to move against the teeth, the reverse rotation of the ratchet wheel 411 is automatically locked (because it rotates in one direction), so the clamping rod 31 can be locked. The ratchet wheel 411 is provided in this structure and can rotate adaptively during the clamping process of the clamping rod 31, thereby ensuring that the clamping rod 31 can be locked at more precise positions. Therefore, this structure improves the clamping accuracy during hanging.

[0078] In one embodiment, a second steering wheel 43 is provided on the side of the hook handle 21. The sub-control rope 512 bypasses the second steering wheel 43 and is connected to the mounting rod. The portion of the sub-control rope 512 between the mounting rod and the second steering wheel 43 is parallel to the axis direction of the mounting rod.

[0079] The second steering wheel 43 is installed on the side of the hook handle 21, which mainly serves to change the movement direction of the sub-control rope 512, so that the sub-control rope 512 can be connected to the mounting rod 413 along a more appropriate and smoother path. Specifically, the sub-control rope 512 bypasses the second steering wheel 43 and is connected to the mounting rod. The portion of the sub-control rope 512 between the mounting rod and the second steering wheel 43 is parallel to the axis direction of the mounting rod 413. Such a layout ensures that when the sub-control rope 512 pulls the mounting rod, the force transmission direction is consistent with the movement direction of the mounting rod 413, improving the force transmission efficiency.

[0080] In this embodiment, the layout of the sub-control rope 512 parallel to the axial direction of the mounting rod 413 ensures the force transmission efficiency, enabling the mounting rod to slide more smoothly, thereby accelerating the installation and disassembly speed of the hanging ladder and improving work efficiency. The setting of the second steering wheel 43 makes the movement of the sub-control rope 512 more stable, reducing the possible swing or deviation of the sub-control rope 512 during the pulling process, thus improving the stability of the entire installation and disassembly process of the hanging ladder and reducing the risk of failures caused by unstable movement of components. The optimized layout of the sub-control rope 512 and the setting of the steering wheel make the force transmission of the operating handle 52 more direct and uniform, reducing the operation difficulty. Construction workers can more easily complete the installation and disassembly operations of the hanging ladder, reducing physical exertion during the operation process.

[0081] In one embodiment, referring to Figure 3 and Figure 6 , the hanging ladder main body 1 includes two parallelly arranged columns 11 and several tread bars 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 tubular shape, and the main control rope 511 passes through the lumen of the column 11 and is respectively connected to the operating handle 52 and the sub-control rope 512 at both ends.

[0082] The hanging ladder main body 1 includes two parallelly arranged columns 11, and the column 11 is of a hollow tubular structure. This design enables the column 11 to reduce its own weight while ensuring a certain strength, facilitating the handling and installation of the hanging ladder. Importantly, the main control rope 511 passes through the lumen of the column 11 and is respectively connected to the operating handle 52 and the sub-control rope 512 at both ends. The hollow tubular column 11 provides an internal passage for the main control rope 511, protecting the main control rope 511 from the risk of being worn, pulled, or damaged accidentally in the external environment, and also making the overall appearance of the hanging ladder more neat and orderly.

[0083] In one embodiment, the operating handle 52 includes a handle main 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 main body 521 is hinged to the hinge seat 522. By controlling the rotation of the handle main body 521, the main control rope 511 can be pulled to move.

[0084] This structure is similar to the brake structure of a bicycle handle. When in use, the operator can hold the column 11 and pinch the operating handle 52 with fingers to rotate it, thereby achieving the unlocking purpose. Therefore, in this embodiment, the articulated operating handle 52 design enables construction workers to control the installation and disassembly of the hanging ladder through a simple rotation action, without the need for complex tools or cumbersome operation steps, improving work efficiency.

[0085] In one embodiment, asFigures 1-2 It further includes an extension ladder 7, and the extension ladder 7 is provided with a threaded connector; a threaded connection sleeve 13 is sleeved on the column 11, and the threaded connection sleeve 13 can be connected to the threaded connector to realize connecting the extension ladder 7 to the lower end of the hanging ladder main body 1.

[0086] The extension ladder 7 is an extension component of the hanging ladder. A threaded connector is provided thereon, and the external thread of the threaded connector matches the internal thread of the threaded connection sleeve 13 to ensure the tightness and stability of the connection. The threaded connection sleeve 13 is sleeved on the column 11 and can be connected to the threaded connector of the extension ladder 7 to realize the connection between the extension ladder 7 and the lower end of the hanging ladder main body 1. The internal thread of the threaded connection sleeve 13 closely cooperates with the external thread of the threaded connector to ensure the firmness of the connection.

[0087] When it is necessary to increase the length of the hanging ladder to adapt to a higher working height, align the threaded connector of the extension ladder 7 with the threaded connection sleeve 13 at the lower end of the column 11, and rotate the threaded sleeve to make the threaded connector tightly screwed with the threaded connection sleeve 13, so as to firmly connect the extension ladder 7 to the lower end of the hanging ladder main body 1.

[0088] By threadedly connecting the extension ladder 7, the length of the hanging ladder can be flexibly adjusted according to the actual working height requirements, adapting to the ship section construction operations at different heights, and improving the application range and flexibility of the hanging ladder.

[0089] In one embodiment, it further includes a guard ring 6, and the guard ring 6 is fixedly connected to one side of the hanging ladder main body 1, and a passage allowing a human body to pass through is formed in the guard ring 6.

[0090] The guard ring 6 is fixedly connected to one side of the hanging ladder main body 1 to form a passage allowing a human body to pass through. Its structure is usually composed of multiple horizontal bars and vertical bars, forming a net-shaped or frame-shaped structure to ensure that personnel will not be affected by the obstruction of the guard ring 6 when passing through. The height and width of the guard ring 6 are reasonably designed to adapt to construction workers of different body types and ensure that they can pass safely when climbing and working.

[0091] The main function of the guard ring 6 is to prevent construction workers from accidentally falling when climbing or working on the hanging ladder. Since the hanging ladder is usually used for operations at higher places, once a construction worker loses balance, the guard ring 6 can play a blocking role to prevent the person from falling from the side of the hanging ladder, thus greatly improving the safety of the operation.

[0092] In the description of this article, it should be understood that the terms indicating orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0093] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0094] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 in conjunction with specific embodiments. These descriptions are only for explaining the principles of this application and should not be construed as a limitation to the protection scope of this application in any way. Based on the explanations herein, those skilled in the art can readily conceive of other specific implementation manners of this application without creative efforts, and these manners will all fall within the protection scope of this application.

Claims

1. A hanging ladder for ship section construction, characterized in that: include: Ladder body (1); The hook (2) comprises a hook handle (21), an elbow (22) and a hook head (23), wherein the hook handle (21) and the hook head (23) are respectively connected to two ends of the elbow (22); an end of the hook handle (21) away from the elbow (22) is fixedly connected to the top end of the hanging ladder body (1); The clamping mechanism (3) comprises a clamping rod (31) and an ejection spring (32), wherein the ejection spring (32) is connected to the clamping rod (31) and the hook handle (21), and the ejection spring (32) releases elastic 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 a clamping function; A self-locking mechanism (4), comprising a self-locking portion (41) and a self-locking spring (42), wherein the self-locking spring (42) is connected to the self-locking portion (41) and the hook handle (21), and the self-locking spring (42) releases elastic force to push the self-locking portion (41) to lock the clamping rod (31), so as to limit the clamping rod (31) from moving away from the hook head (23) and loosening the clamping rod; An unlocking control mechanism (5) comprises an operating handle (52) and a connecting rope (51). The operating handle (52) is installed on the side of the hanging ladder body (1). The connecting rope (51) comprises 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) by the operating handle (52), the self-locking mechanism (4) can be remotely controlled to be unlocked, and the clamping rod (31) can be driven away from the hook head (23) to achieve loosening.

2. The hanging ladder for ship segment construction according to claim 1, characterized in that: The hook handle (21) comprises a handle body (211) and a mounting frame (212), wherein the handle body (211) is connected to the elbow (22), and the mounting frame (212) is arranged on a side of the handle body (211) facing away from the hook head (23); the clamping rod (31) can be slidably mounted on the handle body (211), and a stop shoulder (312) is provided in the middle of the clamping rod (31), and one end of the ejection spring (32) abuts against the stop shoulder (312), and the other end abuts against the mounting frame (212), so as to push the clamping rod (31) to move toward the hook head (23).

3. The hanging ladder for ship segment construction according to claim 2, characterized in that: A support plate (213) is provided on the side of the installation 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 installation frame (212); the sub-control rope (512) passes around the first steering wheel (33) and is connected to the clamping rod (31); and a portion of the sub-control rope (512) located between the clamping rod (31) and the first steering wheel (33) is axially parallel to the clamping rod (31).

4. The hanging ladder for ship segment construction according to claim 1, characterized in that: The clamping rod (31) is also provided with a self-locking matching portion that cooperates with the self-locking portion (41), and the self-locking matching portion includes a first ratchet tooth (311); the self-locking portion (41) includes a second ratchet tooth, and through the cooperation between the first ratchet tooth (311) and the second ratchet tooth, the self-locking portion (41) can achieve unidirectional locking of the clamping rod (31).

5. The hanging ladder for ship segment construction according to claim 4, characterized in that: The self-locking part (41) comprises a mounting rod (413), a rotating mounting head (412) and a ratchet (411); two ends of the mounting rod (413) are respectively connected to the sub-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 rotatably mounted on the rotating mounting head (412); and the second ratchet is arranged on the ratchet (411).

6. The hanging ladder for ship segment construction according to claim 5, characterized in that: A second steering wheel (43) is provided on the side of the hook handle (21), the sub-control rope (512) passes around the second steering wheel (43) and is connected to the mounting rod (413), and the portion of the sub-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 segment construction according to claim 1, characterized in that: The hanging ladder body (1) comprises two parallel columns (11) and a plurality of pedals (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 cavity of the column (11), and the two ends are respectively connected to the operating handle (52) and the sub-control rope (512).

8. The hanging ladder for ship segment construction according to claim 7, characterized in that: The operating handle (52) comprises a handle body (521) and an articulated seat (522), wherein the articulated 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 articulated seat (522), and the main control rope (511) can be pulled to move by controlling the rotation of the handle body (521).

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

10. The hanging ladder for ship segment construction according to claim 1, characterized in that: It also comprises a guard ring (6), wherein the guard ring (6) is fixedly connected to one side of the hanging ladder body (1), and a passage is formed in the guard ring (6) to allow a human body to pass through.

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