Ship inclined ladder capable of avoiding stress damage and abrasion

Abstract

The invention discloses a ship inclined ladder capable of avoiding stress damage and abrasion, belongs to the technical field of ship inclined ladders, and aims to solve the problem that an existing inclined ladder is rigidly connected with a main deck or a module structure, so that the inclined ladder and a connecting part of the inclined ladder bear overlarge stress, and then potential safety hazards are caused. The lower end of the inclined ladder body and the connecting base are connected in a non-welding mode, and compared with rigid connection through welding, non-welding can be regarded as non-rigid connection, so that the stress problem is solved, and the stability and safety of the inclined ladder are ensured; the stainless steel base plate at the upper end of the connecting seat is in direct contact with the stainless steel base plate at the lower end of the inclined ladder body through the second balls, sliding friction is converted into rolling friction through the second balls, friction force is reduced, and it is avoided that the inclined ladder body is in direct contact with a main deck or a module structure and the anti-corrosion effect is affected by paint damage; meanwhile, when the lower end of the inclined ladder body generates relative displacement and collides with the limiting plate, the damping assembly is used for buffering and energy absorption.

Description

Technical Field

[0001] The present invention relates to the technical field of ship inclined ladders, and in particular to a ship inclined ladder capable of avoiding stress damage and wear. Background Art

[0002] The FPSO project has modules with various functions. The main deck and modules, as well as different modules, are connected by inclined ladders and platforms. Considering that different modules are usually relatively independent, different modules will have slight relative displacement under working conditions. Although the relative displacement is small, it will produce greater stress on the outfitting parts rigidly connected between the two modules.

[0003] Chinese patent document CN221068396U discloses a ship inclined ladder, including two side panels, a plurality of step plates are arranged between the two side panels, a protective plate is fixedly installed on the upper surface of the two side panels, a plurality of fixing components for fixing the corresponding step plates are arranged between the two side panels, the fixing components include a bottom plate, the bottom plate is fixedly installed between the two protective plates, support plates are fixedly installed on both sides of the upper surface of the bottom plate, and limiting grooves are provided through the surfaces of the opposite sides of the two support plates, and the two limiting grooves are interlaced with the corresponding step plates. Although the device completes the installation detection of the inclined ladder, it has limitations. The inclined ladder and the main deck or module structure are all welded integrated settings. This rigid connection will cause the inclined ladder and its connecting parts to bear excessive stress, thereby causing safety hazards.

[0004] Therefore, in order to solve such problems, we propose a ship inclined ladder which can avoid stress damage and wear. Summary of the invention

[0005] The object of the present invention is to provide a ship inclined ladder that can avoid stress damage and wear, aiming to solve the problem in the above-mentioned background technology that rigid connection will cause the inclined ladder and its connecting parts to bear excessive stress, thereby causing safety hazards.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ship inclined ladder that can avoid stress damage and wear, comprising an inclined ladder body and a base movably overlapped at the lower end of the inclined ladder body, the base is movably connected with a connecting seat inside, four first sliding grooves are evenly arranged on the upper end of the connecting seat, a first threaded column is movably connected inside the first sliding groove, one end of the first threaded column passes through the side wall of the connecting seat, a slider is threadedly connected to the side wall of the first threaded column, the slider is slidably connected to the inner wall of the first sliding groove, the upper end of the slider is fixedly connected to a limiting plate, the upper end of the connecting seat is fixedly connected to a stainless steel pad, a plurality of sixth installation grooves are evenly arranged on the upper end of the stainless steel pad, and the inner wall of the sixth installation groove is movably connected to a second roller The cam is provided with a second ball bearing, and the cam is provided with a second spring which is movably connected to the side wall of the connecting seat. The second spring is used to movably connect the side wall of the connecting seat and the second spring. The two ends of the cam are fixedly connected to the first mounting plate and the second mounting plate.

[0007] Preferably, the side wall of the limiting plate is provided with a third mounting groove, the inside of the limiting plate is provided with a fourth mounting groove, the third mounting groove is communicated with the fourth mounting groove, a second threaded column is movably connected inside the fourth mounting groove, one end of the second threaded column passes through the upper surface of the limiting plate, the side wall of the second threaded column is threadedly connected with a push block, the push block is slidably connected to the inner wall of the fourth mounting groove, push plates are abutted on both side walls of the push block, the push plates are slidably connected to the inner wall of the third mounting groove, an end of the push plate away from the push block is fixedly connected with an extension plate, and the extension plate is slidably connected to the side wall of the limiting plate.

[0008] Preferably, a plurality of first installation grooves are evenly formed on the inner bottom wall of the base, the inner walls of the first installation grooves are movably connected with first balls, and the lower end of the connecting seat abuts against the first balls.

[0009] Preferably, a plurality of second mounting grooves are evenly formed on the upper end of the connecting seat, and the second balls are movably connected to the second mounting grooves.

[0010] Preferably, the limiting plate and the side wall of the extension plate are both fixedly connected with rubber plates, and the rubber plates of the limiting plate and the side wall of the extension plate are both located in the same vertical plane.

[0011] Preferably, a fifth mounting groove is provided on the top wall and the bottom wall of the third mounting groove, a block is fixedly connected to the side wall of the push plate, the block is slidably connected to the inner wall of the fifth mounting groove, a first spring is fixedly connected to the side wall of the block, and one end of the first spring away from the block is fixedly connected to the inner wall of the fifth mounting groove.

[0012] Preferably, eight second slide grooves are opened at the upper end of the connecting seat, and every two second slide grooves are respectively located on both sides of the first slide groove, and the inner wall of the second slide groove is slidably connected to a limiting block, and the upper end of the limiting block is fixedly connected to the limiting plate.

[0013] Preferably, the edges of the stainless steel pad are located directly above the second chute and the first chute.

[0014] Preferably, the lower ends of the push block on both sides are respectively provided with inclined surfaces, and the ends of the two push plates close to the push block are provided with inclined surfaces.

[0015] Preferably, a gap is left between the stainless steel pad at the lower end of the inclined ladder body and the limiting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a ship inclined ladder that can avoid stress damage and wear. The lower end of the inclined ladder body and the connecting seat are connected in a non-welding manner. Compared with a rigid connection such as welding, non-welding can be regarded as a non-rigid connection, which solves the stress problem and ensures the stability and safety of the inclined ladder. The stainless steel pad at the upper end of the connecting seat is directly in contact with the stainless steel pad at the lower end of the inclined ladder body through a plurality of second balls, and the second balls are used to convert sliding friction into rolling friction, thereby reducing friction and avoiding direct contact between the inclined ladder body and the main deck or module structure and paint damage affecting the anti-corrosion effect. At the same time, when the lower end of the inclined ladder body undergoes relative displacement and hits the limit plate, the shock-absorbing assembly is used to buffer and absorb energy, which can not only reduce the noise and vibration generated by the impact, but also effectively protect the inclined ladder and connecting components from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional enlarged view of point A of the present invention; Figure 3 It is a three-dimensional exploded schematic diagram of the base in the present invention; Figure 4 It is a three-dimensional exploded schematic diagram of the connecting seat in the present invention; Figure 5 It is a three-dimensional exploded schematic diagram of the limiting plate in the present invention; Figure 6 It is a three-dimensional exploded schematic diagram of the first shock absorbing assembly in the present invention; Figure 7 It is a three-dimensional cross-sectional view of the limiting plate in the present invention; Figure 8 It is a three-dimensional schematic diagram of the stainless steel pad in the present invention.

[0018] Legend: 1. inclined ladder body; 2. base; 201. first mounting groove; 202. first ball bearing; 21. connecting seat; 211. first slide groove; 212. second slide groove; 213. second mounting groove; 22. first threaded column; 221. slider; 222. limit block; 23. limit plate; 231. third mounting groove; 232. fourth mounting groove; 233. fifth mounting groove; 234. second threaded column; 235. push block; 236. push plate; 237. extension plate; 238. stop block; 239. first spring; 24. rubber plate; 25. stainless steel pad; 251. sixth mounting groove; 26. second ball bearing; 27. shock absorbing assembly; 271. first mounting plate; 272. telescopic rod; 273. second mounting plate; 274. second spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to solve the problem that the existing rigid connection between the inclined ladder and the main deck or module structure easily causes the inclined ladder and its connecting parts to be subjected to excessive stress, thus causing safety hazards, please refer to Figure 1-Figure 4 , providing the following preferred technical solutions.

[0021] An embodiment of the present invention is a ship inclined ladder that can avoid stress damage and wear, comprising an inclined ladder body 1 and a base 2 movably overlapped at the lower end of the inclined ladder body 1, wherein a connecting seat 21 is movably connected inside the base 2, and four first slide grooves 211 are evenly arranged on the upper end of the connecting seat 21, and a first threaded column 22 is movably connected inside the first slide groove 211, and one end of the first threaded column 22 passes through the side wall of the connecting seat 21, and a slider 221 is threadedly connected to the side wall of the first threaded column 22, and the slider 221 is slidably connected to the inner wall of the first slide groove 211, and the upper end of the slider 221 is fixedly connected to a limiting plate 23, and the upper end of the connecting seat 21 is fixedly connected to a stainless steel pad 25, and a plurality of sixth mounting grooves 251 are evenly arranged on the upper end of the stainless steel pad 25, and the inner wall of the sixth mounting groove 251 is movably connected to a second ball bearing 26, and the lower end of the inclined ladder body 1 is fixedly connected to There is another stainless steel pad 25, the stainless steel pad 25 at the lower end of the inclined ladder body 1 is movably connected to the stainless steel pad 25 at the upper end of the connecting seat 21 through the second ball 26, the limiting plate 23 limits the stainless steel pad 25 at the lower end of the inclined ladder body 1, and the inner side walls of the base 2 are respectively provided with shock-absorbing components 27, and the shock-absorbing components 27 include a first mounting plate 271, the first mounting plate 271 is fixedly connected to the inner wall of the base 2, and a plurality of telescopic rods 272 are evenly fixedly connected to the upper end of the first mounting plate 271, and the end of the telescopic rod 272 away from the first mounting plate 271 is fixedly connected to the second mounting plate 273, and the second mounting plate 273 is fixedly connected to the side wall of the connecting seat 21, and the side wall of the telescopic rod 272 is movably sleeved with a second spring 274, and the two ends of the second spring 274 are respectively fixedly connected to the first mounting plate 271 and the second mounting plate 273.

[0022] Specifically, the surface of the stainless steel pad 25 at the lower end of the inclined ladder body 1 is not grooved, the base 2 is welded and fixed to the main deck or module structure at the lower end of the inclined ladder body 1, and the lower end of the inclined ladder body 1 and the connecting seat 21 are connected without welding. Compared with the rigid connection such as welding, non-welding can be regarded as a non-rigid connection, which solves the problem of stress. Secondly, the stainless steel pad 25 at the upper end of the connecting seat 21 is directly in contact with the stainless steel pad 25 at the lower end of the inclined ladder body 1 through a plurality of second balls 26, and the sliding friction is converted into rolling friction by the second balls 26 to reduce the friction force, thereby avoiding direct contact between the inclined ladder body 1 and the main deck or module structure and damage to the paint to affect the anti-corrosion effect. At the same time, when the lower end of the inclined ladder body 1 undergoes relative displacement and hits the limit plate 23, the limit plate 23 is connected The seat 21 squeezes the shock-absorbing component 27, and then uses the shock-absorbing component 27 for buffering and energy absorption. Secondly, according to the amplitude of the relative displacement of the lower end of the inclined ladder body 1, and without affecting the limiting plate 23 of the stainless steel pad 25 at the lower end of the inclined ladder body 1, the first threaded column 22 can be rotated, so that the first threaded column 22 drives the slider 221 to slide on the inner wall of the first slide groove 211, so that the slider 221 drives the limiting plate 23 to adjust the position, thereby reducing the impact of the inclined ladder body 1 on the limiting plate 23. When the lower end of the inclined ladder body 1 undergoes relative displacement and hits the limiting plate 23, the second mounting plate 273 is squeezed by the connecting seat 21, so that the second mounting plate 273 squeezes the telescopic rod 272 and the second spring 274, so that the second spring 274 undergoes elastic deformation, thereby performing shock absorption and energy absorption.

[0023] A third mounting groove 231 is provided on the side wall of the limiting plate 23, and a fourth mounting groove 232 is provided inside the limiting plate 23. The third mounting groove 231 is communicated with the fourth mounting groove 232, and a second threaded column 234 is movably connected inside the fourth mounting groove 232. One end of the second threaded column 234 passes through the upper surface of the limiting plate 23, and a push block 235 is threadedly connected to the side wall of the second threaded column 234. The push block 235 is slidably connected to the inner wall of the fourth mounting groove 232. Push plates 236 are abutted on both side walls of the push block 235. The push plate 236 is slidably connected to the inner wall of the third mounting groove 231, and an extension plate 237 is fixedly connected to the end of the push plate 236 away from the push block 235, and the extension plate 237 is slidably connected to the side wall of the limiting plate 23.

[0024] Specifically, it is used to rotate the second threaded column 234 so that the second threaded column 234 drives the push block 235 to slide on the inner wall of the fourth mounting groove 232, so that the push block 235 simultaneously pushes the two push plates 236 to slide on the inner wall of the third mounting groove 231, so that the push plate 236 drives the extension plate 237 to slide on the side wall of the limit plate 23, thereby adjusting the length of the limit plate 23 and the extension plate 237, so as to avoid the limit plate 23 and the extension plate 237 conflicting with each other in the X-axis and Y-axis directions when the position of the limit plate 23 is adjusted, and the position of the limit plate 23 cannot be adjusted.

[0025] Furthermore, in order to enhance the stability of the device, Figure 5-Figure 8 As shown, the following preferred technical solutions are provided.

[0026] A plurality of first installation grooves 201 are evenly formed on the inner bottom wall of the base 2. The inner walls of the first installation grooves 201 are movably connected with first balls 202. The lower end of the connecting seat 21 abuts against the first balls 202 to convert sliding friction into rolling friction using the first balls 202 to reduce friction.

[0027] A plurality of second mounting grooves 213 are evenly formed at the upper end of the connecting seat 21, and the second balls 26 are movably connected to the second mounting grooves 213 for positioning the second balls 26 to prevent the second balls 26 from rolling when the second balls 26 and the stainless steel pad 25 are installed, thereby increasing installation convenience.

[0028] The side walls of the limiting plate 23 and the extension plate 237 are fixedly connected with rubber plates 24, and the rubber plates 24 on the side walls of the limiting plate 23 and the extension plate 237 are located in the same vertical plane. The rubber plates 24 are used to cushion the relative displacement of the lower end of the inclined ladder body 1 and the collision with the limiting plate 23, thereby reducing the wear between the limiting plate 23 and the inclined ladder body 1.

[0029] A fifth mounting groove 233 is provided on the top wall and the bottom wall of the third mounting groove 231, and a block 238 is fixedly connected to the side wall of the push plate 236, and the block 238 is slidably connected to the inner wall of the fifth mounting groove 233. A first spring 239 is fixedly connected to the side wall of the block 238, and one end of the first spring 239 away from the block 238 is fixedly connected to the inner wall of the fifth mounting groove 233, and is used to utilize the elastic force of the first spring 239 so that the first spring 239 pushes the push plate 236 to slide on the inner wall of the third mounting groove 231 through the block 238, thereby driving the end of the push plate 236 close to the extension plate 237 to gradually slide into the third mounting groove 231, thereby reducing the length of the limiting plate 23 and the extension plate 237.

[0030] Eight second slide grooves 212 are opened at the upper end of the connecting seat 21, and every two second slide grooves 212 are respectively located on both sides of the first slide groove 211, and the inner wall of the second slide groove 212 is slidably connected to the limiting block 222, and the upper end of the limiting block 222 is fixedly connected to the limiting plate 23, which is used to limit the limiting plate 23 by using the limiting block 222, thereby increasing the stability of the limiting plate 23 sliding on the upper surface of the connecting seat 21.

[0031] The edges of the stainless steel pad 25 are located directly above the second slide groove 212 and the first slide groove 211 , so as to avoid the stainless steel pad 25 and the limiting plate 23 from sliding and colliding with each other on the upper surface of the connecting seat 21 .

[0032] The lower ends of the push block 235 on both sides are respectively provided with inclined surfaces, and the two push plates 236 are respectively provided with inclined surfaces at one end close to the push block 235, so as to realize that when the second threaded column 234 is rotated to drive the push block 235 to slide downward on the inner wall of the fourth installation groove 232, the push block 235 pushes the two push plates 236 to slide respectively on the inner wall of the third installation groove 231.

[0033] There is a gap between the stainless steel pad 25 at the lower end of the inclined ladder body 1 and the limit plate 23 to reserve a distance for the inclined ladder body 1 to drive the stainless steel pad 25 to move when the hull shakes, thereby reducing the impact of the stainless steel pad 25 on the limit plate 23.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship inclined ladder capable of avoiding stress damage and wear, comprising an inclined ladder body (1) and a base (2) movably overlapped at the lower end of the inclined ladder body (1), characterized in that: The base (2) is movably connected to a connecting seat (21) inside, and four first sliding grooves (211) are evenly arranged on the upper end of the connecting seat (21). A first threaded column (22) is movably connected inside the first sliding groove (211). One end of the first threaded column (22) passes through the side wall of the connecting seat (21). The side wall of the first threaded column (22) is threadedly connected to a slider (221). The slider (221) is slidably connected to the inner wall of the first sliding groove (211). The upper end of the slider (221) is fixedly connected to a limiting plate (23). The upper end of the connecting seat (21) is fixedly connected to a stainless steel pad (25). The upper end of the stainless steel pad (25) is evenly arranged with a plurality of sixth mounting grooves (251). The inner wall of the sixth mounting groove (251) is movably connected to a second ball bearing (26). The lower end of the inclined ladder body (1) is fixedly connected to another stainless steel pad (25). The stainless steel pad (25) at the lower end of the inclined ladder body (1) ) is movably connected to a stainless steel pad (25) at the upper end of a connecting seat (21) through a second ball bearing (26); a limiting plate (23) limits the stainless steel pad (25) at the lower end of the inclined ladder body (1); inner side walls of the base (2) are respectively provided with shock absorbing components (27); the shock absorbing components (27) include a first mounting plate (271); the first mounting plate (271) is fixedly connected to the inner wall of the base (2); a plurality of telescopic rods (272) are evenly fixedly connected to the upper end of the first mounting plate (271); one end of the telescopic rod (272) away from the first mounting plate (271) is fixedly connected to a second mounting plate (273); the second mounting plate (273) is fixedly connected to the side wall of the connecting seat (21); a second spring (274) is movably sleeved on the side wall of the telescopic rod (272); two ends of the second spring (274) are respectively fixedly connected to the first mounting plate (271) and the second mounting plate (273).

2. A ship inclined ladder capable of avoiding stress damage and wear according to claim 1, characterized in that: The side wall of the limiting plate (23) is provided with a third mounting groove (231), and the inside of the limiting plate (23) is provided with a fourth mounting groove (232). The third mounting groove (231) is communicated with the fourth mounting groove (232). A second threaded column (234) is movably connected inside the fourth mounting groove (232). One end of the second threaded column (234) passes through the upper surface of the limiting plate (23). A push block (235) is threadedly connected to the side wall of the second threaded column (234). The push block (235) is slidably connected to the inner wall of the fourth mounting groove (232). Push plates (236) are abutted against the two side walls of the push block (235). The push plates (236) are slidably connected to the inner wall of the third mounting groove (231). An extension plate (237) is fixedly connected to one end of the push plate (236) away from the push block (235). The extension plate (237) is slidably connected to the side wall of the limiting plate (23).

3. A ship inclined ladder capable of avoiding stress damage and wear according to claim 1, characterized in that: The inner bottom wall of the base (2) is evenly provided with a plurality of first installation grooves (201), the inner walls of the first installation grooves (201) are movably connected with first rolling balls (202), and the lower end of the connecting seat (21) is in contact with the first rolling balls (202).

4. A ship inclined ladder capable of avoiding stress damage and wear according to claim 1, characterized in that: A plurality of second mounting grooves (213) are evenly formed on the upper end of the connection seat (21), and the second balls (26) are movably connected to the second mounting grooves (213).

5. A ship inclined ladder capable of avoiding stress damage and wear according to claim 3, characterized in that: The side walls of the limiting plate (23) and the extension plate (237) are both fixedly connected with rubber plates (24), and the rubber plates (24) on the side walls of the limiting plate (23) and the extension plate (237) are both located in the same vertical plane.

6. A ship inclined ladder capable of avoiding stress damage and wear according to claim 2, characterized in that: A fifth mounting groove (233) is formed on the inner top wall and the inner bottom wall of the third mounting groove (231); a stopper (238) is fixedly connected to the side wall of the push plate (236); the stopper (238) is slidably connected to the inner wall of the fifth mounting groove (233); a first spring (239) is fixedly connected to the side wall of the stopper (238); and one end of the first spring (239) away from the stopper (238) is fixedly connected to the inner wall of the fifth mounting groove (233).

7. A ship inclined ladder capable of avoiding stress damage and wear according to claim 1, characterized in that: Eight second slide grooves (212) are provided at the upper end of the connection seat (21), and each two second slide grooves (212) are respectively located on both sides of the first slide groove (211), and the inner wall of the second slide groove (212) is slidably connected to a limit block (222), and the upper end of the limit block (222) is fixedly connected to the limit plate (23).

8. A ship inclined ladder capable of avoiding stress damage and wear according to claim 7, characterized in that: The edges of the stainless steel pad (25) are located directly above the second slide groove (212) and the first slide groove (211).

9. A ship inclined ladder capable of avoiding stress damage and wear according to claim 2, characterized in that: The lower ends of the push block (235) on both sides are respectively provided with inclined surfaces, and the ends of the two push plates (236) close to the push block (235) are also provided with inclined surfaces.

10. The ship inclined ladder capable of avoiding stress damage and wear according to claim 1, characterized in that: A gap is left between the stainless steel pad (25) at the lower end of the inclined ladder body (1) and the limit plate (23).

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