Escape and rescue ladder for offshore wind platform

Abstract

The utility model discloses an escape and rescue ladder for offshore wind power platform belongs to escape and rescue ladder technical field, including symmetry vertical shaft, a plurality of horizontal shaft and clamping unit, the vertical shaft upper end is equipped with the hook, opposite side is equipped with multiple sets of clamping groove, and the first connecting shaft and second connecting shaft are fixed in the groove, the horizontal shaft is articulated by left connecting plate and right connecting plate through the hinging shaft and is composed, and one end is connected with the first connecting shaft through the connecting hole, and the lower end is connected with the sliding block sliding groove and is articulated with the support shaft, and the other end of support shaft is connected with the second connecting shaft, the vertical shaft is sealed through the sealing groove and the protruding direction and is inlayed and sealed, and the horizontal shaft upper surface is equipped with the antiskid pad of protruding line and drainage groove, the clamping unit is locked vertical shaft positioning hole through L shape limit board and fixed peg staggered. The scheme realizes that the ladder body is compressed and folded along the vertical shaft, and the storage volume is greatly reduced, when unfolding, the horizontal shaft is automatically positioned horizontally, the support shaft is self -adaptation leveling tread through the sliding block, cooperates antiskid drainage and sealed anticorrosion design, and the safety and reliability of offshore emergency escape are improved obviously.

Description

Technical Field

[0001] This utility model belongs to the field of escape and rescue ladder technology, specifically relating to an escape and rescue ladder for offshore wind power platforms. Background Technology

[0002] Offshore wind power platforms, due to their remote location and harsh environment, require escape and rescue equipment that meets three core requirements: rapid deployment, strong corrosion resistance, and stability against wind and waves. Traditional rescue ladders often use rigid welded frames or rope structures, which have significant drawbacks: storage problems: the bulky, integrated ladder frame is difficult to fit into the narrow spaces of the platform; poor environmental adaptability: metal joints are susceptible to salt spray corrosion, and slippery surfaces increase the risk of falls; insufficient dynamic stability: when wind and waves cause the platform to tilt, the ladder lacks the ability to self-adjust and level, making it easy for personnel to lose balance while descending.

[0003] Existing improvements, such as folding ladders, reduce storage volume, but their hinge structures are complex, unfolding is time-consuming, and they lack anti-lateral sway design; the anti-slip treads are mostly simple textures, and seawater can still cause slipping. In addition, seawater can easily seep into the vertical joint, accelerating corrosion and shortening the service life.

[0004] Therefore, there is an urgent need for an escape and rescue ladder specifically designed for offshore wind power platforms. This ladder should have a modular folding mechanism to compress its volume, be combined with a dynamic stabilization system to resist the swaying of wind and waves, and integrate a highly efficient anti-slip and anti-corrosion design to improve the success rate of emergency escape and the durability of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide an escape and rescue ladder for offshore wind power platforms to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an escape and rescue ladder for offshore wind power platforms, comprising symmetrical vertical shafts, several horizontal shafts, and several snap-fit ​​units. Hooks are fixedly connected to the upper ends of each of the symmetrical vertical shafts, and several sets of slots are provided on opposite sides of each symmetrical vertical shaft. A first connecting shaft and a second connecting shaft are fixedly connected within each slot. Each of the several horizontal shafts includes a left connecting plate and a right connecting plate. The outer surface of each first connecting shaft is sleeved onto a connecting hole provided at one end of the left and right connecting plates, and the outer surface of each second connecting shaft is sleeved onto one end of a support shaft. A first connecting head or a second connecting head is fixedly connected to opposite sides of the left and right connecting plates, and they are mutually fixedly connected via hinge shafts.

[0007] It should be noted in the solution that the number of the aforementioned snap-fit ​​units is at least three, and they are respectively staggered and hinged on one side of the symmetrical vertical axis. Each snap-fit ​​unit includes an L-shaped limiting plate. The vertical axis on the other side of the snap-fit ​​unit is provided with a positioning hole and is fixedly connected to the other end of the L-shaped limiting plate by a fixing bolt.

[0008] It is worth noting that the vertical axis is provided with symmetrical sealing grooves or symmetrical protruding guides on opposite sides, and the sealing grooves can be slidably connected to the corresponding protruding guides.

[0009] It should be further noted that the first connecting shaft is located at the upper end of the slot, and the second connecting shaft is located in the middle of the slot.

[0010] In a preferred embodiment, anti-slip pads are fixedly connected to the upper ends of both the left and right connecting plates, and the surface of the anti-slip pads has staggered raised patterns and drainage grooves.

[0011] In a preferred embodiment, the lower middle part of the left connecting plate and the right connecting plate is provided with a sliding groove, and the axial middle part of the sliding groove is fixedly connected with a limit post and slidably connected with a sliding block. The lower end of the sliding block is hinged to one end of the support shaft.

[0012] In a preferred embodiment, both the sliding groove and the sliding block have rectangular cross-sections.

[0013] Compared with the prior art, the escape and rescue ladder for offshore wind power platforms provided by this utility model has at least the following beneficial effects:

[0014] (1) The core innovation of this rescue ladder lies in its unique folding horizontal axis structure and modular connection design. The horizontal axis adopts a hinged combination of left and right connecting plates, giving it axial folding capability. At the same time, the horizontal and vertical axes cooperate through separable slots and connecting shafts to form quick assembly and disassembly nodes. Meanwhile, through staggered snap-fit ​​units, L-shaped limiting plates, and fixing bolts, the symmetrical horizontal axes fit together. The sealing grooves and raised guide designs between the vertical axes ensure a tight connection of the ladder body, preventing structural misalignment and corrosion. This design allows the entire ladder body to be compressed and folded along the vertical axis, significantly reducing storage volume and making it particularly suitable for the limited storage space on offshore platforms. In case of emergency escape, simply unfold the ladder body and fix the hooks to the edge of the platform, and each horizontal axis will automatically unfold into a stepping surface, achieving "one-click" rapid deployment and buying valuable time for personnel evacuation.

[0015] (2) For offshore working conditions characterized by high humidity, high salt spray, and easy swaying, this ladder achieves reliable support through multiple structural optimizations. The raised texture on the surface of the anti-slip mat and the drainage channels form a dual-effect anti-slip mechanism, effectively draining seawater and enhancing the friction of the shoe soles. In addition, the sealing grooves and raised guide designs between the vertical shafts ensure a tight connection of the ladder, preventing seawater from entering and causing corrosion. Furthermore, the support shafts adaptively adjust their angle through sliding blocks, ensuring that the horizontal shaft always maintains a horizontal stepping surface, guaranteeing the safe descent of personnel even when the platform is tilted. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the vertical axis structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the horizontal axis structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the support shaft structure of this utility model.

[0020] In the diagram: 1. Vertical axis; 101. Positioning hole; 102. Slot; 103. First connecting shaft; 104. Second connecting shaft; 105. Sealing groove; 106. Protruding guide; 2. Hook; 3. Horizontal axis; 301. Left connecting plate; 3011. First connector; 302. Right connecting plate; 3021. Second connector; 303. Hinge shaft; 304. Connecting hole; 305. Anti-slip pad; 306. Sliding groove; 307. Limiting post; 308. Sliding block; 309. Support shaft; 4. Snap-fit ​​unit; 401. Limiting plate; 402. Fixing bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Please see Figure 1-4 This utility model provides an escape and rescue ladder for offshore wind power platforms, comprising: symmetrical vertical shafts 1, several horizontal shafts 3, and several snap-fit ​​units 4. Each of the symmetrical vertical shafts 1 has a hook 2 fixedly connected to its upper end, and several sets of slots 102 are provided on opposite sides of each symmetrical vertical shaft 1. Each slot 102 has a first connecting shaft 103 and a second connecting shaft 104 fixedly connected to it. Each of the several horizontal shafts 3 includes a left connecting plate 301 and a right connecting plate 302. The outer surface of the first connecting shaft 103 is sleeved on the connecting hole 304 provided at one end of the left connecting plate 301 and the right connecting plate 302, and the outer surface of the second connecting shaft 104 is sleeved on one end of the support shaft 309. Each of the left connecting plate 301 and the right connecting plate 302 has a first connecting head 3011 or a second connecting head 3021 fixedly connected to its opposite sides, and they are fixedly connected to each other by hinge shafts 303.

[0023] Further as Figure 1As shown, it is worth noting that there are at least three snap-fit ​​units 4, which are staggered and hinged to one side of the symmetrical vertical axis 1. Each snap-fit ​​unit 4 includes an L-shaped limiting plate 401. The vertical axis 1 is located on the other side of the snap-fit ​​unit 4 and is provided with a positioning hole 101. It is fixedly connected to the other end of the L-shaped limiting plate 401 by a fixing bolt 402. By using at least three staggered snap-fit ​​units 4 in conjunction with the L-shaped limiting plate 401 and the fixing bolt 402, the symmetrical vertical axis 1 is horizontally locked to form a wind and wave resistant triangular stable structure. When folded for storage: the L-shaped limiting plate 401 releases the fixing bolt 402, allowing the vertical axis 1 to be compressed together. When unfolded for use: the fixing bolt 402 is inserted into the positioning hole 101 and locked to resist the lateral swing of the ladder and ensure the safety of personnel descending.

[0024] Further as Figure 2 As shown, it is worth noting that symmetrical sealing grooves 105 or symmetrical raised guides 106 are respectively provided on opposite sides of the symmetrical vertical axis 1. The sealing grooves 105 can be slidably connected to the corresponding raised guides 106. The fitting design of the sealing grooves 105 and the raised guides 106 achieves a dual function: precise guidance and alignment when folded to avoid structural misalignment; and tight fitting to form a sealing barrier after unfolding, preventing seawater from seeping into the connection nodes (such as the slots 102 and the connecting shafts 103 / 104), significantly reducing the risk of salt spray corrosion.

[0025] Further as Figure 2 As shown, it is worth noting that the first connecting shaft 103 is located at the upper end of the slot 102, and the second connecting shaft 104 is located in the middle of the slot 102. The first connecting shaft 103 at the upper end of the slot 102 supports the horizontal shaft 3, and the second connecting shaft 104 in the middle connects to the support shaft 309, forming a graded force-bearing mechanism: the upper connecting shaft 103 bears the load of people stepping on it; the middle connecting shaft 104 provides oblique support force through the support shaft 309, dispersing the load of the vertical shaft 1 and improving the overall structural strength.

[0026] This solution includes the following work process:

[0027] 1. Folding and storage and emergency deployment

[0028] When the ladder is folded up, the symmetrical vertical shaft 1 is aligned with the raised guide 106 via the sealing groove 105, compressing the overall height. The left and right connecting plates 301 and 302 of the horizontal shaft 3 fold inward via the hinge shaft 303, causing the support shaft 309 to disengage from the second connecting shaft 104; at the same time, the L-shaped limiting plate 401 of the locking unit 4 loosens the fixing bolt 402, releasing the lock between the vertical shafts 1. In case of emergency, the hook 2 is fixed to the edge of the platform, and the ladder is pulled down to separate and unfold the vertical shaft 1. At this time, the left and right connecting plates 301 and 302 of the horizontal shaft 3 unfold around the hinge shaft 303 under the action of gravity to form a horizontal tread surface, the lower end of the support shaft 309 automatically fits into the second connecting shaft 104, and the upper end slides in the sliding groove 306 via the sliding block 308 to adjust the angle, forming a stable triangular support.

[0029] 2. Dynamic stability and anti-slip / corrosion properties

[0030] When personnel descend, the raised texture and drainage channels on the surface of the 305 anti-slip mat quickly drain seawater, enhancing the friction of the shoe soles. When the platform is subjected to wind and waves:

[0031] The staggered snap-fit ​​units 4 lock the positioning holes 101 of the vertical shaft 1 through the L-shaped limiting plate 401, forming a transverse anti-torsion structure.

[0032] The support shaft 309 pushes the sliding block 308 to move along the sliding groove 306 with a rectangular cross section, and the stroke is constrained by the limit post 307 to adaptively adjust the horizontality of the horizontal axis 3;

[0033] The sealing groove 105 between the vertical shafts 1 fits tightly with the raised guide 106 to prevent seawater from seeping into the connection node and reduce the risk of corrosion.

[0034] 2. Modular maintenance

[0035] The sleeve design of the first connecting shaft 103 and the connecting hole 304, as well as the detachable structure of the snap-fit ​​unit 4, support the quick replacement of damaged parts (such as anti-slip pad 305 or sliding block 308), ensuring long-term reliability for marine use.

[0036] Based on the above working process, it can be seen that: through at least three staggered snap-fit ​​units 4, in conjunction with L-shaped limiting plates 401 and fixing bolts 402, the symmetrical vertical axis 1 is horizontally locked, forming a wind and wave resistant triangular stable structure; when folded for storage: L-shaped limiting plates 401 loosen fixing bolts 402, allowing the vertical axis 1 to be compressed together; when unfolded for use: fixing bolts 402 are inserted into positioning holes 101 and locked, resisting the lateral swaying of the ladder and ensuring the safety of personnel descending. The interlocking design of sealing grooves 105 and protruding guides 106 achieves a dual function: precise guidance during folding. Alignment prevents structural misalignment; after unfolding, the tight fit forms a sealed barrier, preventing seawater from seeping into the connecting nodes (such as the slot 102 and connecting shafts 103 / 104), significantly reducing the risk of salt spray corrosion. The first connecting shaft 103, located at the upper end of the slot 102, supports the horizontal shaft 3, while the second connecting shaft 104, located in the middle, connects to the support shaft 309, forming a graded force-bearing mechanism: the upper connecting shaft 103 bears the load of people stepping on it; the middle connecting shaft 104 provides diagonal support through the support shaft 309, dispersing the load of the vertical shaft 1 and improving the overall structural strength.

[0037] Further as Figure 3 and Figure 4 As shown, it is worth noting that anti-slip pads 305 are fixedly connected to the upper ends of both the left connecting plate 301 and the right connecting plate 302. The surface of the anti-slip pads 305 has staggered raised patterns and drainage grooves. The raised patterns and drainage grooves on the surface of the anti-slip pads 305 form a dual-effect anti-slip system: the raised patterns increase the friction of the sole; the drainage grooves quickly drain seawater from the sole, preventing slippage due to water accumulation, which is especially suitable for wet and slippery sea conditions.

[0038] Further as Figure 3 and Figure 4 As shown, it is worth noting that the lower middle part of the left connecting plate 301 and the right connecting plate 302 is provided with a sliding groove 306. The sliding groove 306 is fixedly connected to the axial middle part of a limit post 307 and is slidably connected to a sliding block 308. The lower end of the sliding block 308 is hinged to one end of the support shaft 309.

[0039] Further as Figure 3 and Figure 4 As shown, it is worth noting that both the sliding groove 306 and the sliding block 308 have rectangular cross sections. The sliding block 308 moves within the rectangular sliding groove 306, and the stroke is constrained by the limiting post 307 to achieve the adaptive leveling function: the support shaft 309 pushes the sliding block 308 to move as the platform tilts, automatically adjusting the horizontal axis angle; the rectangular cross section prevents rotational loosening, ensuring that the tread surface is always horizontal and guaranteeing the safety of stepping under tilted conditions.

[0040] In summary: The raised texture and drainage channels on the surface of the anti-slip mat 305 constitute a dual-effect anti-slip system: the raised texture increases the friction of the sole; the drainage channels quickly drain seawater from the sole, preventing slippage due to water accumulation, which is especially suitable for wet and slippery sea conditions. The sliding block 308 moves within the rectangular sliding groove 306, and the stroke is constrained by the limit post 307 to achieve an adaptive leveling function: the support shaft 309 pushes the sliding block 308 to move as the platform tilts, automatically adjusting the angle of the horizontal axis 3; the rectangular cross section prevents rotational loosening, ensuring that the tread surface is always level and guaranteeing safety when stepping on an inclined surface.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of escape and rescue ladder for offshore wind power platform, including symmetric vertical shaft (1), several horizontal shafts (3) and several clamping units (4), it is characterized in that: Hooks (2) are fixedly connected to the upper ends of the symmetrical vertical shafts (1), and several sets of slots (102) are provided on opposite sides of the symmetrical vertical shafts (1). A first connecting shaft (103) and a second connecting shaft (104) are fixedly connected in the slots (102). The several horizontal shafts (3) include a left connecting plate (301) and a right connecting plate (302). The outer surface of the first connecting shaft (103) is sleeved in the connecting hole (304) provided at one end of the left connecting plate (301) and the right connecting plate (302). The outer surface of the second connecting shaft (104) is sleeved in one end of the support shaft (309). A first connecting head (3011) or a second connecting head (3021) is fixedly connected to the opposite sides of the left connecting plate (301) and the right connecting plate (302), and they are fixedly connected to each other through the hinge shaft (303).

2. An escape and rescue ladder for an offshore wind platform according to claim 1, characterized in that: The number of the snap-fit ​​units (4) is at least three, and they are respectively staggered and hinged on one side of the symmetrical vertical axis (1). Each snap-fit ​​unit (4) includes an L-shaped limiting plate (401). The vertical axis (1) is located on the other side of the snap-fit ​​unit (4) and is provided with a positioning hole (101), and is fixedly connected to the other end of the L-shaped limiting plate (401) by a fixing bolt (402).

3. The escape and rescue ladder for an offshore wind power platform according to claim 1, characterized in that: The vertical axis (1) is provided with symmetrical sealing grooves (105) or symmetrical protruding guides (106) on opposite sides. The sealing grooves (105) can be slidably connected to the corresponding protruding guides (106).

4. The escape and rescue ladder for an offshore wind power platform according to claim 1, characterized in that: The first connecting shaft (103) is located at the upper end of the slot (102), and the second connecting shaft (104) is located in the middle of the slot (102).

5. The escape and rescue ladder for an offshore wind power platform according to claim 1, characterized in that: The upper ends of the left connecting plate (301) and the right connecting plate (302) are both fixedly connected with anti-slip pads (305), and the surface of the anti-slip pads (305) has staggered raised patterns and drainage grooves.

6. The escape and rescue ladder for an offshore wind power platform according to claim 1, characterized in that: The lower middle part of the left connecting plate (301) and the right connecting plate (302) is provided with a sliding groove (306). The sliding groove (306) is fixedly connected to the middle part of the axis of the sliding groove (306) and is slidably connected with a sliding block (308). The lower end of the sliding block (308) is hinged to one end of the support shaft (309).

7. An escape and rescue ladder for an offshore wind power platform according to claim 6, characterized in that: Both the sliding groove (306) and the sliding block (308) have rectangular cross-sections.

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