A pilot ladder retraction structure

Abstract

The application relates to the technical field of soft ladders, and discloses a pilot soft ladder winding and unwinding structure which comprises a deck, a handrail, a box body, a winch, an outer plate and a soft ladder. The bottom of the box body is integrally formed with a first positioning seat, the top of the deck is provided with an anti-abrasion material on one side, and the top of the deck is fixedly installed with a connecting seat on the side close to the soft ladder. In the application, the anti-abrasion material is welded on the deck through the bottom connecting seat, the bottom of the connecting seat is positioned through the first positioning seat and the second positioning seat on the bottom of the box body by bolts, the connecting stability of the two sides of the bottom of the connecting seat and the deck of the ship is improved, the inside of the arc-shaped anti-abrasion material and the connecting seat are reinforced through a plurality of welded connecting blocks and connecting blocks, the anti-abrasion material can be tightly attached to the installation position of the deck even if it is subjected to long-term extrusion when the soft ladder is wound and unwound, and the anti-abrasion material can be prevented from being deformed, so that the arc-shaped anti-abrasion material can be stably installed at the placement position of the soft ladder and can stably guide the soft ladder.

Description

Technical Field

[0001] The present invention relates to the technical field of soft ladders, in particular to a retractable and deployable structure for a pilot soft ladder. Background Art

[0002] With the rapid development of the shipping industry, ships are docking and leaving ports more and more frequently. Pilots usually have to use a pilot ladder to get on and off ships at sea. Currently, the pilot ladders used on ships are connected by pedals with ropes.

[0003] For example, the Chinese patent publication number CN215752910U states, "A novel pilot ladder relates to the technical field of ladders, comprising a housing, a rotating shaft rotatably connected to the interior of the housing, a motor fixedly mounted on the side of the housing, one end of the ladder fixedly connected to the outer wall of the rotating shaft, and a connecting plate provided at the bottom of the front of the housing; a connecting sleeve fixedly provided on one side of the ladder, a connecting hole provided inside the connecting sleeve, and a connecting rod inserted into the connecting hole."

[0004] In the above-mentioned comparative document, the soft ladder is fixed by connecting the connecting rod with the connecting hole in the connecting sleeve, reducing the problem of large swinging of the rope when climbing and stepping on the pedal, and avoiding a certain degree of danger; through the cooperation of the support plate and the connecting rod, the box has a certain installation space. During installation, the box is first fixed to one place, and the rotation of the motor drives the rotation of the rotating shaft to release the soft ladder from the opening, and then the connecting sleeve of the hanging part is connected through the connecting rod, and the threaded hole at the top of the connecting rod is connected to the threaded rod, which is convenient and quick.

[0005] However, when the pilot ladder on the above-mentioned ship is in use, the ladder collides with the anti-wear material on the deck when being retracted and extended on the deck, and the anti-wear material is subjected to friction and compression, resulting in deformation and damage at the connection between the anti-wear material and the deck. When the ladder is being retracted and extended, the gap between the ladder and the outer plate gradually increases. When the crew climbs up the ladder, the ladder is affected by wind and other factors, and the ladder sways greatly, resulting in a major safety hazard when the crew climbs. Summary of the Invention

[0006] The purpose of the present invention is to provide a pilot ladder retraction and extension structure, which can provide stable guidance for the retraction and extension of the pilot ladder, and can position the ladder between the ladder and the hull outer plate, so that the ladder can be positioned when the crew climbs the ladder.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a retractable and retractable structure for a pilot ladder, comprising a deck, a handrail, a box, a winch, an outer plate, and a ladder. A first positioning seat is integrally formed at the bottom of the box, and a wear-resistant material is provided on one side of the top of the deck. A connecting seat is fixedly installed on the top of the deck close to the ladder. Connecting blocks and connecting blocks are integrally formed at both ends and the middle of the connecting seat respectively. A lifting cylinder is fixedly installed on the side of the outer plate away from the ladder. The telescopic end of the lifting cylinder is fixedly connected to a connecting frame, and an interference clamp is fixedly connected to the end of the connecting frame away from the lifting cylinder. The ladder includes symmetrically arranged connecting rods, and the two ends of the two groups of connecting rods are respectively hinged with a first side rod and a second side rod, and positioning locking rods are provided at the adjacent ends of the first side rod and the second side rod.

[0008] Preferably, the bottom of the connecting seat is a T-shaped structure, the second positioning seat is an L-shaped structure, and one side of the first positioning seat and one side of the second positioning seat are fixedly connected to the two sides of the bottom of the connecting seat by bolts respectively.

[0009] Preferably, the arcuate surface on one side of the wear-resistant material contacts the top of the outer plate.

[0010] Preferably, the connecting block and the linking block are respectively integrally formed with the inner arc surface of the wear-resistant material.

[0011] Preferably, a guard plate is symmetrically fixedly installed on one side of the outer plate, and the guard plate is an L-shaped structure. Through grooves are opened at equal intervals on one side of the outer plate near the guard plate.

[0012] Preferably, the soft ladder is fixedly connected to the output end of the winch, and the bottom of the soft ladder extends to between the outer plate and the guard plate.

[0013] Preferably, the soft ladder conflicts with the top curved surface of the wear-resistant material.

[0014] Preferably, a guide groove is provided on the outer side of the second side rod, and positioning grooves are symmetrically provided on both sides of the inner wall of the guide groove.

[0015] Preferably, a positioning lock rod is rotatably mounted on the end of the first side rod, and the first side rod is inserted into the corresponding inner wall of the second side rod through the bottom end of the positioning lock rod.

[0016] Preferably, the positioning lock rod is a T-shaped structure, and one end of the positioning lock rod is clamped in the corresponding positioning groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, the anti-wear material is welded to the deck through the bottom connecting seat, and the two sides of the bottom of the connecting seat are positioned by bolts through the first positioning seat and the second positioning seat at the bottom of the box body, thereby increasing the stability of the connection between the two sides of the bottom of the connecting seat and the ship deck, and the inner side of the arc-shaped anti-wear material and the connecting seat are reinforced by multiple groups of welded connecting blocks and connecting blocks. In this way, when the soft ladder is retracted or extended, the anti-wear material is subjected to long-term compression and can still fit closely with the deck installation position to prevent deformation, thereby enabling the arc-shaped anti-wear material to be stably installed at the soft ladder placement position, and can play a role in stabilizing and guiding the soft ladder;

[0019] The present invention enables the first side rod of the soft ladder to slide in the guide groove provided on the front side between the positioning lock rod and the second side rod, and the positioning lock rod can be rotated to make the positioning lock rod correspondingly inserted into the corresponding positioning groove, so that the spacing between the two sides of the soft ladder can be flexibly adjusted. When the soft ladder is unrolled and climbed, the length can be positioned and the overall unwinding length of the soft ladder can be adjusted. The telescopic end of the jacking cylinder drives the connecting frame to be telescopic, so that the end of the connecting frame can contact the clamp to position the side rods on both sides of the soft ladder against the guard plate. In this way, when the crew on the soft ladder climbs, the positioning between the soft ladder and the outer plate can be ensured, which makes the climbing operation of the crew more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a side structural schematic diagram of the present invention;

[0022] Figure 3 Schematic diagram of the connection structure between the anti-wear material and the soft ladder in the present invention;

[0023] Figure 4 It is a schematic diagram of the local structure of the soft ladder in the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0025] In the figure: 1. Deck; 2. Handrail; 3. Box; 4. Winch; 5. Outer plate; 6. Anti-wear material; 7. Lifting cylinder; 8. Soft ladder; 31. First positioning seat; 51. Guard plate; 52. Through groove; 61. Connecting seat; 62. Second positioning seat; 63. Connecting block; 64. Connecting block; 71. Connecting frame; 72. Abutment chuck; 81. Connecting rod; 82. First side rod; 83. Second side rod; 831. Guide groove; 832. Positioning groove; 84. Positioning lock rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example:

[0028] This embodiment introduces a pilot ladder retractable structure. Figure 1-Figure 5 As shown, a pilot ladder retractable structure includes a deck 1, a handrail 2, a box 3, a winch 4, an outer plate 5, and a ladder 8. A first positioning seat 31 is integrally formed at the bottom of the box 3. A wear-resistant material 6 is provided on one side of the top of the deck 1. A connecting seat 61 is fixedly installed on the top of the deck 1 near the ladder 8. Connecting blocks 63 and 64 are integrally formed at both ends and the middle of the connecting seat 61 respectively.

[0029] A lifting cylinder 7 is fixedly installed on the side of the outer plate 5 away from the soft ladder 8. The telescopic end of the lifting cylinder 7 is fixedly connected to a connecting frame 71. The end of the connecting frame 71 away from the lifting cylinder 7 is fixedly connected to an abutment clamp 72. The soft ladder 8 includes symmetrically arranged connecting rods 81. The two ends of the two groups of connecting rods 81 are respectively hinged with a first side rod 82 and a second side rod 83. The adjacent ends of the first side rod 82 and the second side rod 83 are provided with a positioning lock rod 84;

[0030] The hoist 4 in the box 3 can retract and extend the soft ladder 8 wound on the outside of the output end. The soft ladder 8 can be guided downward by the top arc surface of the wear-resistant material 6 and extended to the outer plate 5. The crew can retract and extend the soft ladder 8 and climb the soft ladder 8 to carry out docking operations after sailing;

[0031] The anti-wear material 6 is welded to the deck 1 through the bottom connecting seat 61. The two sides of the bottom of the connecting seat 61 are positioned by bolts through the first positioning seat 31 and the second positioning seat 62 at the bottom of the box body 3, which increases the stability of the connection between the two sides of the bottom of the connecting seat 61 and the ship deck 1. In addition, the inner side of the arc-shaped anti-wear material 6 and the connecting seat 61 are reinforced by multiple groups of welded connecting blocks 63 and connecting blocks 64. In this way, when the soft ladder 8 is retracted or extended, the anti-wear material 6 is subjected to long-term compression and can still fit closely with the installation position of the deck 1 to prevent deformation, thereby allowing the arc-shaped anti-wear material 6 to be stably installed at the placement position of the soft ladder 8, and can play a role in stabilizing and guiding the soft ladder 8.

[0032] The first side rod 82 in the soft ladder 8 can slide in the guide groove 831 opened on the front side between the positioning lock rod 84 and the second side rod 83, and the positioning lock rod 84 can be rotated to make the positioning lock rod 84 correspondingly inserted into the corresponding positioning groove 832, so that the spacing between the two sides of the soft ladder 8 can be flexibly adjusted. When the soft ladder 8 is unrolled and climbed, the length can be positioned and the overall unwinding length of the soft ladder 8 can also be adjusted. The telescopic end of the jacking cylinder 7 drives the connecting frame 71 to be telescopic, so that the end of the connecting frame 71 can contact the clamp 72 to position the side rods on both sides of the soft ladder 8 against the guard plate 51. In this way, when the crew climbs on the soft ladder 8, it can ensure that the soft ladder 8 is positioned with the outer plate 5, which is more convenient for the crew to climb.

[0033] Among them, the bottom of the connecting seat 61 is a T-shaped structure, the second positioning seat 62 is an L-shaped structure, one side of the first positioning seat 31 and one side of the second positioning seat 62 are fixedly connected to the two sides of the bottom of the connecting seat 61 by bolts respectively, and the arc surface of one side of the anti-wear material 6 conflicts with the top of the outer plate 5, and the connecting block 63 and the connecting block 64 are respectively integrally formed with the inner arc surface of the anti-wear material 6, and the inner side of the arc-shaped anti-wear material 6 and the connecting seat 61 are reinforced by multiple groups of welded connecting blocks 63 and connecting blocks 64. In this way, when the soft ladder 8 is retracted and released, the anti-wear material 6 is subjected to long-term extrusion, and can still fit tightly with the installation position of the deck 1 to prevent deformation, so that the arc-shaped anti-wear material 6 can be stably installed at the placement position of the soft ladder 8, which can play a role in stabilizing and guiding the soft ladder 8.

[0034] Among them, a guard plate 51 is symmetrically fixed on one side of the outer plate 5, and the guard plate 51 is an L-shaped structure. A through groove 52 is opened at equal intervals on one side of the outer plate 5 near the guard plate 51. The soft ladder 8 is fixedly connected to the output end of the winch 4, and the bottom of the soft ladder 8 extends between the outer plate 5 and the guard plate 51. The soft ladder 8 conflicts with the arc-shaped surface of the top of the wear-resistant material 6. The first side rod 82 in the soft ladder 8 can slide in the guide groove 831 opened on the front side between the positioning lock rod 84 and the second side rod 83, and the positioning lock rod 84 can be rotated so that the positioning lock rod 84 is correspondingly inserted into the corresponding positioning groove 832. In this way, the spacing between the two sides of the soft ladder 8 can be flexibly adjusted. When the soft ladder 8 is unrolled and climbed, the length can be positioned and the overall unwinding length of the soft ladder 8 can be adjusted.

[0035] Among them, a guide groove 831 is provided on the outside of the second side rod 83, and positioning grooves 832 are symmetrically provided on both sides of the inner wall of the guide groove 831. A positioning lock rod 84 is rotatably installed on the end of the first side rod 82, and the first side rod 82 is inserted into the corresponding inner wall of the second side rod 83 through the bottom end of the positioning lock rod 84. The positioning lock rod 84 is a T-shaped structure, and one end of the positioning lock rod 84 is clamped in the corresponding positioning groove 832. The telescopic end of the jacking cylinder 7 drives the connecting frame 71 to be telescopic, so that the end of the connecting frame 71 can contact the clamp 72 to position the side rods on both sides of the soft ladder 8 against the guard plate 51. In this way, when the crew climbs on the soft ladder 8, it can ensure that the soft ladder 8 and the outer plate 5 are positioned, which is more convenient for the crew's climbing operation.

[0036] Working principle: When in use, the hoist 4 in the box body 3 can retract and extend the soft ladder 8 wound on the outside of the output end. The soft ladder 8 can be guided downward by the arc surface of the top of the wear-resistant material 6 and extended to the outer plate 5. The crew can retract and extend the soft ladder 8 and climb the soft ladder 8 to carry out docking operations after sailing. When the crew climbs on the soft ladder 8, the first side rod 82 in the soft ladder 8 can slide in the guide groove 831 opened on the front between the positioning lock rod 84 and the second side rod 83, and the positioning lock rod 84 can be rotated to make the positioning lock rod 84 close to the port. The jacking cylinder 7 drives the connecting frame 71 to extend and retract, so that the end of the connecting frame 71 abuts against the clamping head 72, and the side rods on both sides of the ladder 8 can be abutted and positioned with the guard plate 51. In this way, when the crew climbs on the ladder 8, the ladder 8 can be positioned with the outer plate 5, which makes the climbing operation more convenient for the crew.

[0037] The anti-wear material 6 is welded to the deck 1 through the bottom connecting seat 61, and the bottom two sides of the connecting seat 61 are positioned with bolts through the first positioning seat 31 and the second positioning seat 62 at the bottom of the box body 3, so as to increase the connection stability between the bottom two sides of the connecting seat 61 and the ship deck 1, and the inner side of the arc-shaped anti-wear material 6 and the connecting seat 61 are reinforced by multiple groups of welded connecting blocks 63 and connecting blocks 64. In this way, when the soft ladder 8 is retracted or released, the anti-wear material 6 is subjected to long-term extrusion and can still fit tightly with the installation position of the deck 1 to prevent deformation, so that the arc-shaped anti-wear material 6 can be stably installed at the placement position of the soft ladder 8, which can play a role in stabilizing and guiding the soft ladder 8.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable and retractable pilot ladder structure, comprising a deck (1), a handrail (2), a box (3), a winch (4), an outer plate (5), and a ladder (8), characterized in that: The bottom of the box (3) is integrally formed with a first positioning seat (31), a wear-resistant material (6) is provided on one side of the top of the deck (1), a connecting seat (61) is fixedly installed on the side of the top of the deck (1) close to the soft ladder (8), and connecting blocks (63) and connecting blocks (64) are integrally formed at both ends and the middle of the connecting seat (61), a lifting cylinder (7) is fixedly installed on the side of the outer plate (5) away from the soft ladder (8), the telescopic end of the lifting cylinder (7) is fixedly connected to a connecting frame (71), and the end of the connecting frame (71) away from the lifting cylinder (7) is fixedly connected to a contact clamp (72), and the soft ladder (8) includes symmetrically arranged connecting rods (81), and two groups of the connecting rods (81) are fixedly connected to the ends of the connecting rods (81). The ends are hinged with a first side rod (82) and a second side rod (83), respectively. A positioning lock rod (84) is provided at the adjacent ends of the first side rod (82) and the second side rod (83). A guide groove (831) is provided on the outside of the second side rod (83), and positioning grooves (832) are symmetrically provided on both sides of the inner wall of the guide groove (831). The end of the first side rod (82) is rotatably mounted with a positioning lock rod (84). The first side rod (82) is inserted into the corresponding inner wall of the second side rod (83) through the bottom end of the positioning lock rod (84). The positioning lock rod (84) is a T-shaped structure, and one end of the positioning lock rod (84) is clamped in the corresponding positioning groove (832).

2. The pilot ladder retractable structure according to claim 1, characterized in that: The bottom of the connecting seat (61) is a T-shaped structure, the second positioning seat (62) is an L-shaped structure, and one side of the first positioning seat (31) and one side of the second positioning seat (62) are fixedly connected to the two sides of the bottom of the connecting seat (61) by bolts respectively.

3. The pilot ladder retractable structure according to claim 2, characterized in that: The arcuate surface on one side of the wear-resistant material (6) contacts the top of the outer plate (5).

4. The pilot ladder retractable structure according to claim 3, characterized in that: The connecting block (63) and the connecting block (64) are respectively integrally formed with the inner arc surface of the anti-wear material (6).

5. The pilot ladder retractable structure according to claim 4, characterized in that: A guard plate (51) is symmetrically fixedly mounted on one side of the outer plate (5), and the guard plate (51) is an L-shaped structure. Through slots (52) are formed at equal intervals through one side of the outer plate (5) near the guard plate (51).

6. The pilot ladder retractable structure according to claim 5, characterized in that: The flexible ladder (8) is fixedly connected to the output end of the hoist (4), and the bottom of the flexible ladder (8) extends between the outer plate (5) and the guard plate (51).

7. The pilot ladder retractable structure according to claim 6, characterized in that: The soft ladder (8) is in conflict with the top arc surface of the wear-resistant material (6).

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