Rescue boarding device for ship

Abstract

The utility model discloses a rescue boarding device for ships, which relates to the technical field of ship equipment and tools, including a single body mechanism, which is connected in series from top to bottom, and includes a hollow arm tube, which is arranged in pairs, and each pair of two hollow arm tubes are parallel to each other and symmetrical. The utility model realizes the deflection and winding of the upper and lower single bodies, as well as the two state effects of pulling down and flattening through the hollow arm tube, slider, annular groove, axial rod, slide bar, rotating joint and limit joint, and the lower pull arm. At the same time, it has the advantages that the rope ladder can be rolled up and retracted, which is easy to unfold, and the hard straight ladder is not easy to shake in multiple directions when it is telescopic, retracted and unfolded, and the pedaling force effect is good, which is easy to climb.

Description

Technical Field

[0001] The utility model relates to the technical field of ship equipment tools, in particular to a rescue boarding device for ships. Background Art

[0002] During sea rescue, a rigid vertical ladder can be used to transfer and board a large number of people between ships.

[0003] When rescuing people scattered in the ocean, rope ladders can also be used to facilitate people around the hull to quickly climb onto the deck.

[0004] Although a rigid ladder is sturdy and does not shake easily when climbing up, it has a large structure, is not easy to set up and unfold, and takes up a large storage space.

[0005] Although rope ladders are easy to roll up and down, they tend to sway in multiple directions when people climb, step on, and pull them. It is not easy for users to control their own positions, making them difficult to climb and use. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a rescue boarding device for a ship to solve the technical problem.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rescue boarding device for a ship, comprising a single body mechanism, which is connected in series from top to bottom, and comprises hollow arm tubes, which are arranged in pairs, and each pair of two hollow arm tubes are parallel to each other and symmetrical.

[0008] A sliding block is slidably arranged on the inner side of the hollow arm tube, a compression spring is fixedly sleeved on the bottom of the sliding block, and the bottom of the compression spring abuts against a bottom block fixed on the bottom of the hollow arm tube.

[0009] An annular groove is provided on the surface of the sliding block, an axial rod is rotatably arranged at the center of the annular groove, and a sliding rod is slidably arranged inside the annular groove.

[0010] The opposite surfaces of the hollow arm tubes on the left and right sides are both provided with a circular rotating joint and a rectangular limiting joint, and the rotating joint and the limiting joint are arranged to be connected with each other up and down.

[0011] The ends of the axial rod and the sliding rod pass through the rotating joint and the limit joint and extend outward, the outward ends of the axial rod and the sliding rod are fixedly connected to the lower pull arm, the bottom of the lower pull arm is fixedly connected to an integrated top block, and the top block is fixedly connected to the top of the hollow arm tube adjacent to the bottom side.

[0012] A pedal frame is rotatably arranged between the two top blocks on the left and right sides that are opposite to each other.

[0013] By adopting the above technical scheme, under normal conditions without being pulled by external forces, the single body mechanism is lifted up by the compression spring and maintained in a rotating state. At this time, the slider is located at the top position of the hollow arm tube, and the annular groove is exposed to the outside through the rotating joint. At this time, the slide bar is separated from the limit joint and is located on the inner side of the rotating joint. The lower pull arm can freely deflect with the axial rod as the center of the circle, and the slide bar can slide on the inner side of the annular groove without being blocked by the hollow arm tube, so that the single bodies connected in series above and below are bent toward each other, so that the entire boarding device can be rolled up and down like a normal rope ladder.

[0014] During rescue, when the user grasps or steps on the pedal frame, the single body mechanism is pulled and moves downward, and the distance between the two adjacent single bodies above and below increases. The lower pulling arm of the bottom single body mechanism pulls the slider of the upper adjacent single body mechanism, causing the slider of the upper single body mechanism to produce a relative downward movement inside the hollow arm tube, causing the compression spring to compress. The downward movement of the slider drives the slide bar to slide downward along the surface of the rotating joint and enter the limit joint. When the axial rod also enters the limit joint, the slide bar and the axial rod determine a straight line based on the "two points determine a straight line" so that the lower pulling arm fixed with the axial rod and the slide bar and the hollow arm tube are relatively parallel and maintained. At this time, the two adjacent single bodies above and below cannot be bent, so that the boarding device can be unfolded and used like a hard telescopic ladder.

[0015] When the slide bar and the axis rod are inside the rotating joint, the device can be rolled up and unrolled, which is convenient for placement on rescue ships and other vehicles. When the slide bar and the axis rod are inside the limit joint, the device can be straightened up and down and unfolded to maintain a stable ladder surface, so that users are not likely to shake back and forth when stepping on and climbing, which makes up for the shortcomings of the rope ladder.

[0016] The utility model is further configured that a guide groove is arranged on the inner side of the hollow arm tube, and the guide groove is a spatial structure which is vertically oriented and has a T-shaped cross section.

[0017] By adopting the above technical solution, the guide groove is used to constrain the up and down movement of the slider, and the T-shaped structure is adopted to enhance the contact area between the slider and the guide groove, while increasing the stability of the connection between the slider and the hollow arm tube.

[0018] The utility model is further configured such that the cross section of the slider is consistent with the guide groove, a positioning column head is fixedly provided at the bottom of the slider, and the top of the compression spring is sleeved on the outer surface of the positioning column head.

[0019] By adopting the above technical solution, the positioning stud is used to connect and limit the compression spring, thereby enhancing the reliability of the compression spring's expansion and contraction in its axial direction and enhancing the synchronization of the movements between the compression spring and the slider.

[0020] The utility model is further configured that a bearing component is embedded in the center position of the annular groove, and the inner ring of the bearing component and the axial rod are fixedly sleeved.

[0021] By adopting the above technical solution, a bearing is added to realize the rotation of the axis rod relative to the slider, and the friction during rotation is reduced by setting the bearing, so that when the slider is on the inner side of the rotating joint, the relative rotation between the lower pull arm and the hollow tube wall is smoother.

[0022] The utility model is further configured such that the rotating joint and the annular groove are concentric circles, and the radius of the rotating joint is greater than the distance between the axial rod and the sliding rod.

[0023] By adopting the above technical solution, the rotating joint laterally penetrates the side wall of the hollow arm tube, so that the annular groove can be exposed to the outside, and the sliding rod can slide along the annular groove when the annular groove is exposed to the outside, thereby realizing the rotation movement of the axial rod relative to the slider, and realizing the rotation movement of the lower pull arm relative to the hollow arm tube.

[0024] The utility model is further configured such that the width of the limit joint matches the diameter of the slide rod and the axial rod, the top opening of the limit joint is arranged at the bottom of the rotating joint, and the junction position between the top of the limit joint and the rotating joint is rounded.

[0025] By adopting the above technical scheme, when the sliding rod and the axial rod follow the lower pull arm to produce a downward movement relative to the hollow arm tube, the sliding rod and the axial rod enter the inner side of the limit joint, and the left and right sides of the sliding rod and the axial rod are pressed against the left and right sides of the inner wall of the limit joint to produce a sliding movement. According to the principle of "two points determine a straight line", the sliding rod and the axial rod determine and maintain the parallel state between the lower pull arm and the hollow arm tube, thereby limiting the deflection movement of the lower pull arm relative to the hollow arm tube, so that the two adjacent single mechanisms can only perform up and down telescopic movements at present, avoiding the front and rear deflection and shaking.

[0026] The utility model is further configured that the lower pull arms are arranged in pairs, and each pair of two lower pull arms corresponds one to one to the two hollow arm tubes in a pair.

[0027] A locking nut is embedded on the top of the lower pull arm, and the locking nut is threadedly connected to the outer end of the axial rod.

[0028] A limiting nut is also arranged on the top of the lower pull arm, and the limiting nut is threadedly connected to the end of the sliding rod.

[0029] By adopting the above technical solution, the locking nut and the limiting nut are used to respectively realize the mutual fixation between the axial rod and the lower pull arm and between the sliding rod and the lower pull arm. By removing the locking nut and the limiting nut, the disassembly operation between the upper and lower adjacent monomer mechanisms can be realized.

[0030] The utility model is further configured that the opposite surfaces of the two top blocks on the left and right sides are movably provided with deflection shafts, and the deflection shafts are welded to the left and right ends of the pedal frame.

[0031] By adopting the above technical solution, the deflection shaft realizes the flipping action of the pedal frame, which is convenient for the user to grasp with his hands and also convenient for the user to step on.

[0032] In summary, the utility model mainly has the following beneficial effects:

[0033] The utility model realizes the deflection and winding of the upper and lower single mechanisms, and the two state effects of pulling down and flattening through the hollow arm tube, slider, annular groove, axial rod, slide bar, rotating joint and limit joint, and the lower pull arm. At the same time, it has the advantages that the rope ladder can be rolled up and retracted, which is convenient for unfolding, and the rigid straight ladder is not easy to shake in multiple directions when it is telescopic, retracted, and unfolded, and the pedaling force effect is good, which is convenient for climbing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 It is a structural schematic diagram of a single body mechanism of the utility model;

[0036] Figure 3 It is a structural schematic diagram of the hollow arm tube and the lower pull arm of the utility model;

[0037] Figure 4 It is a schematic diagram of the positions of the axial rod and the sliding rod in the tension limit state of the utility model;

[0038] Figure 5 It is a schematic diagram of the positions of the shaft rod and the sliding rod in the rotating state of the utility model.

[0039] In the figure: 1, single body mechanism; 101, hollow arm tube; 102, slider; 103, compression spring; 104, bottom block; 105, annular groove; 106, axial rod; 107, slide bar; 108, rotating joint; 109, limit joint; 110, lower pull arm; 111, top block; 112, pedal frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0041] The following describes an embodiment of the utility model based on its overall structure.

[0042] A rescue boarding device for a ship, such as Figures 1 to 5As shown, a rescue boarding device for a ship includes a single body mechanism 1, which is connected in series from top to bottom. The single body mechanism 1 includes a hollow arm tube 101, which is arranged in pairs, and each pair of two hollow arm tubes 101 are parallel to each other and symmetrical.

[0043] A slider 102 is slidably provided on the inner side of the hollow arm tube 101 , and a compression spring 103 is fixedly sleeved on the bottom of the slider 102 . The bottom of the compression spring 103 abuts against a bottom block 104 fixed on the bottom of the hollow arm tube 101 .

[0044] The surface of the slider 102 is provided with an annular groove 105, a shaft rod 106 is rotatably arranged at the center of the annular groove 105, and a slide bar 107 is slidably arranged inside the annular groove 105. The shaft rod 106 and the slide bar 107 are arranged parallel to each other.

[0045] A circular rotating joint 108 and a rectangular limiting joint 109 are provided on opposite surfaces of the left and right hollow arm tubes 101 , and the rotating joint 108 and the limiting joint 109 are arranged to communicate with each other up and down.

[0046] The ends of the axial rod 106 and the sliding rod 107 penetrate the rotating joint 108 and the limiting joint 109 and extend outwards. The ends of the axial rod 106 and the sliding rod 107 facing outwards are fixedly connected to the lower pull arm 110. The bottom of the lower pull arm 110 is fixedly connected to an integrated top block 111. The top block 111 is fixedly connected to the top of the hollow arm tube 101 adjacent to the bottom side. The top block 111 and the stop block seal the upper and lower ends of the hollow arm tube 101 to prevent the slider 102 from falling off from the inside of the hollow arm tube 101.

[0047] A tread frame 112 is rotatably arranged between two top blocks 111 on the left and right sides. The tread frame 112 is an elliptical frame structure.

[0048] Under normal conditions without being pulled by external forces, the single body mechanism 1 is lifted up by the compression spring 103 and maintained in a rotating state. At this time, the slider 102 is located at the top position of the hollow arm tube 101, and the annular groove 105 is exposed to the outside through the rotating joint 108. At this time, the slide bar 107 is disengaged from the limit joint 109 and is located on the inner side of the rotating joint 108. The lower pull arm 110 can freely deflect with the axial rod 106 as the center of the circle, and the slide bar 107 can slide on the inner side of the annular groove 105 without being blocked by the hollow arm tube 101, so that the single body mechanisms 1 connected in series above and below are bent toward each other, so that the entire boarding device can be rolled up and down like a normal rope ladder.

[0049] During rescue, when the user grasps or steps on the pedal frame 112, the single body mechanism 1 is pulled and moves downward, and the distance between the two adjacent single bodies 1 increases. The lower pulling arm 110 of the bottom single body mechanism 1 pulls the slider 102 of the upper adjacent single body mechanism 1, causing the slider 102 of the upper single body mechanism 1 to produce a relative downward movement inside the hollow arm tube 101, causing the compression spring 103 to be compressed. The downward movement of the slider 102 drives the slide bar 107 to slide downward along the surface of the rotating joint 108 and enter the limit joint 109. When the axial rod 106 also enters the limit joint 109, the slide bar 107 and the axial rod 106 are based on the "two points determine a straight line" so that the lower pulling arm 110 fixed to the axial rod 106 and the slide bar 107 and the hollow arm tube 101 are relatively parallel and maintained. At this time, the two adjacent single bodies 1 cannot be bent, so that the boarding device can be unfolded and used like a hard telescopic ladder.

[0050] When the slide bar 107 and the shaft rod 106 are inside the rotating joint 108, the device can be rolled up and placed on a rescue ship or other vehicle. When the slide bar 107 and the shaft rod 106 are inside the limit joint 109, the device can be stretched up and down in a straight line and unfolded to maintain a stable ladder surface. It is not easy for users to sway back and forth when stepping on and climbing, which makes up for the shortcomings of the rope ladder.

[0051] Please refer to Figures 3 to 5 As shown, a guide groove is provided on the inner side of the hollow arm tube 101, and the guide groove is a vertical spatial structure with a T-shaped cross section.

[0052] The guide groove is used to constrain the upward and downward movement of the slider 102 . The T-shaped structure is adopted to enhance the contact area between the slider 102 and the guide groove, and at the same time, the stability of the connection between the slider 102 and the hollow arm tube 101 is increased.

[0053] Please refer to Figure 4 and Figure 5 As shown, the cross section of the slider 102 is consistent with the guide groove, a positioning column head is fixedly provided at the bottom of the slider 102, and the top of the compression spring 103 is sleeved on the outer surface of the positioning column head.

[0054] The positioning stud is used to connect and limit the compression spring 103 , enhance the reliability of the compression spring 103 in its axial expansion and contraction direction, and enhance the synchronization of the movement between the compression spring 103 and the slider 102 .

[0055] Please refer to Figure 3 As shown, a bearing is embedded in the center of the annular groove 105 , and the inner ring of the bearing is fixedly sleeved with the shaft rod 106 .

[0056] A bearing is added to realize the rotation of the axis rod 106 relative to the slider 102, and the friction during rotation is reduced by setting the bearing, so that when the slide bar 107 is inside the rotating joint 108, the relative rotation between the lower pull arm 110 and the hollow tube wall is smoother.

[0057] Please refer to Figure 3 and Figure 5 As shown, the rotating joint 108 and the annular groove 105 are concentric circles, and the radius of the rotating joint 108 is greater than the distance between the shaft rod 106 and the sliding rod 107 .

[0058] The rotating joint 108 laterally penetrates the side wall of the hollow arm tube 101, so that the annular groove 105 can be exposed to the outside, and the sliding rod 107 can slide along the annular groove 105 when the annular groove 105 is exposed to the outside, thereby realizing the rotation of the axial rod 106 relative to the slider 102 and the rotation of the lower pull arm 110 relative to the hollow arm tube 101.

[0059] Please refer to Figure 3 and Figure 4 As shown, the width of the limit joint 109 matches the diameter of the sliding rod 107 and the axial rod 106, the top opening of the limit joint 109 is set at the bottom of the rotating joint 108, and the junction position of the top of the limit joint 109 and the rotating joint 108 is rounded.

[0060] When the slide bar 107 and the axial rod 106 follow the lower pull arm 110 to produce a downward movement relative to the hollow arm tube 101, the slide bar 107 and the axial rod 106 enter the inner side of the limit joint 109, and the left and right sides of the slide bar 107 and the axial rod 106 are pressed against the left and right sides of the inner wall of the limit joint 109 to produce a sliding movement. According to the principle of "two points determine a straight line", the slide bar 107 and the axial rod 106 determine and maintain the parallel state between the lower pull arm 110 and the hollow arm tube 101, thereby limiting the deflection movement of the lower pull arm 110 relative to the hollow arm tube 101, so that the two adjacent single mechanisms 1 can only perform up and down telescopic movements at present, avoiding the front and rear deflection and shaking.

[0061] Please refer to Figure 1 and Figure 2 As shown, the lower pull arms 110 are arranged in pairs, and each pair of two lower pull arms 110 corresponds to the two hollow arm tubes 101 in a one-to-one manner.

[0062] A locking nut is embedded in the top of the lower pull arm 110 , and the locking nut is threadedly connected to the outer end of the axial rod 106 .

[0063] A limit nut is also provided on the top of the lower pull arm 110 , and the limit nut is threadedly connected to the end of the slide rod 107 .

[0064] The locking nut and the limiting nut are used to respectively fix the shaft rod 106 and the lower arm 110, and the sliding rod 107 and the lower arm 110. By removing the locking nut and the limiting nut, the upper and lower adjacent single bodies 1 can be separated.

[0065] Please refer to Figure 1 and Figure 2 As shown, the opposite surfaces of the two top blocks 111 on the left and right sides are movably provided with deflection shafts, and the deflection shafts are welded to the left and right ends of the pedal frame 112.

[0066] The deflection axis realizes the flipping action of the pedal frame 112, which is convenient for the user to grasp and also convenient for the user to pedal.

[0067] The utility model creatively realizes the deflection and winding of the upper and lower monomer mechanisms 1, and the two state effects of pulling down and flattening through the hollow arm tube 101, the slider 102, the annular groove 105, the axial rod 106, the slide bar 107, the rotating joint 108 and the limit joint 109, and the lower pull arm 110. At the same time, it has the advantages that the rope ladder can be rolled up and retracted, which is easy to unfold, and the rigid straight ladder is not easy to shake in multiple directions when it is telescopic, retracted, and unfolded, and the pedaling force effect is good, which is easy to climb.

[0068] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A rescue boarding device for a ship, comprising a single mechanism (1), wherein the single mechanism (1) is connected in series from top to bottom, and is characterized in that: The single body structure (1) comprises a hollow arm tube (101), wherein the hollow arm tubes (101) are arranged in pairs, and each pair of two hollow arm tubes (101) are parallel to each other and bilaterally symmetrical; A sliding block (102) is slidably provided on the inner side of the hollow arm tube (101), a compression spring (103) is fixedly sleeved on the bottom of the sliding block (102), and the bottom of the compression spring (103) abuts against a bottom block (104) fixed on the bottom of the hollow arm tube (101); The surface of the slider (102) is provided with an annular groove (105), a central axis rod (106) is rotatably arranged at the center of the annular groove (105), and a sliding rod (107) is slidably arranged inside the annular groove (105); The opposite surfaces of the hollow arm tubes (101) on the left and right sides are provided with a circular rotating joint (108) and a rectangular limiting joint (109), and the rotating joint (108) and the limiting joint (109) are arranged to communicate with each other up and down; The ends of the axial rod (106) and the sliding rod (107) penetrate the rotating joint (108) and the limiting joint (109) and extend outwards, and the outward ends of the axial rod (106) and the sliding rod (107) are fixedly connected to a lower pull arm (110), and the bottom of the lower pull arm (110) is fixedly connected to an integrated top block (111), and the top block (111) is fixedly connected to the top of the hollow arm tube (101) adjacent to the bottom side; A tread frame (112) is rotatably arranged between the two top blocks (111) on the left and right sides that are opposite to each other.

2. A rescue boarding device for a ship according to claim 1, characterized in that: A guide groove is arranged on the inner side of the hollow arm tube (101), and the guide groove is a vertical spatial structure with a T-shaped cross section.

3. A rescue boarding device for a ship according to claim 2, characterized in that: The cross section of the slider (102) is consistent with the guide groove, a positioning column head is fixedly provided at the bottom of the slider (102), and the top of the compression spring (103) is sleeved on the outer surface of the positioning column head.

4. A rescue boarding device for a ship according to claim 1, characterized in that: A bearing component is nested at the center of the annular groove (105), and the inner ring of the bearing component and the shaft rod (106) are fixedly sleeved.

5. A rescue boarding device for a ship according to claim 1, characterized in that: The rotating joint (108) and the annular groove (105) are concentric circles, and the radius of the rotating joint (108) is greater than the distance between the axial rod (106) and the sliding rod (107).

6. A rescue boarding device for a ship according to claim 1, characterized in that: The width of the limit joint (109) matches the diameter of the sliding rod (107) and the axial rod (106), the top opening of the limit joint (109) is arranged at the bottom of the rotating joint (108), and the junction position between the top of the limit joint (109) and the rotating joint (108) is rounded.

7. A rescue boarding device for a ship according to claim 1, characterized in that: The lower pull arms (110) are arranged in pairs, and each pair of two lower pull arms (110) corresponds one-to-one to the two paired hollow arm tubes (101); A locking nut is embedded in the top of the lower pull arm (110), and the locking nut is threadedly connected to the outer end of the axial rod (106); A limit nut is also provided on the top of the lower pull arm (110), and the limit nut is threadedly connected to the end of the slide rod (107).

8. A rescue boarding device for a ship according to claim 1, characterized in that: The opposite surfaces of the two top blocks (111) on the left and right sides are both movably provided with deflection shafts, and the deflection shafts are welded to the left and right ends of the pedal frame (112).

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