A special-purpose barge transfer trolley for lifeboat maintenance and its operation method

Abstract

The present application relates to the technical field of ship transfer, in particular to a special barge trolley for lifeboat maintenance and its operation method, which comprises a trolley frame, a traction arm on one side of the trolley frame for connecting external vehicles, a plurality of groups of bearing frames fixedly installed inside the trolley frame, a supporting arm movably connected to the top end of each bearing frame, an adjusting mechanism arranged between the supporting arm and the bearing frame, a plurality of groups of telescopic supporting rods arranged at the top center of the trolley frame, a displacement sensor arranged inside each telescopic supporting rod, a plurality of groups of side frames fixedly installed on the trolley frame, and a locking device arranged at the top end of each side frame. The crane hoists the lifeboat onto the whole trolley frame, adjusts the inclination angle of the supporting arm through the adjusting mechanism, disperses the weight of the lifeboat, and the displacement sensor of the telescopic supporting rod is subjected to displacement during the hoisting process, which drives the locking device to rotate until the locking frame is engaged with the outside of the lifeboat and locked, thereby solving the problems of poor stability, low operation efficiency and high safety hazards.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship transfer, in particular to a special barge trolley for lifeboat maintenance and its operation method. BACKGROUND

[0002] The lifeboat is an emergency lifesaving device arranged on a ship, a marine facility or a shore base, and its main purpose is to provide a tool for passengers to evacuate, seek refuge and wait for rescue in an emergency. When the lifeboat is transported from the manufacturing plant, warehouse or maintenance workshop to the deployment site, it needs to be hoisted to a special barge trolley, and then transported through the barge trolley, so as to ensure safe and efficient transportation and movement on land.

[0003] In the prior art, a patent with publication number CN101691134B discloses a special device for lifeboat transfer and repair, which is composed of a traction mechanism, a front steering wheel, a rack, a detachable cross beam, a rear wheel, an adjustable boat support mechanism, a control box, a nitrogen cylinder, a cylinder lifting mechanism and a front cross beam. The traction mechanism is connected with the front steering wheel to control the steering, and is connected with the front cross beam and drives the rack through the hinge.

[0004] The above structure can adapt to different specifications of lifeboats through the adjustable boat support mechanism, but after the lifeboat is hoisted to the barge trolley, it is prone to poor stability and safety hazards during transportation on turning and bumpy roads. SUMMARY

[0005] Therefore, the present application aims to provide a special barge trolley for lifeboat maintenance and its operation method to solve the above problems.

[0006] In order to achieve the above purpose, the present application provides a special barge trolley for lifeboat maintenance and its operation method, which comprises a frame and a traction arm on one side of the frame for connecting an external vehicle. The bottom of the frame is provided with wheels. The inside of the frame is respectively fixedly provided with a plurality of groups of bearing frames corresponding to the front, middle and rear parts of the lifeboat. The top end of the bearing frame is movably connected with a supporting arm. An adjusting mechanism is arranged between the supporting arm and the bearing frame, and is used for adjusting the inclination angle of the supporting arm.

[0007] A plurality of groups of telescopic supporting rods are arranged at the top center of the frame. Memory rubber is arranged on the top of the telescopic supporting rod and the supporting arm. A displacement sensor is arranged in the telescopic supporting rod. A plurality of groups of side frames are fixedly arranged on the frame. A locking device is arranged at the top end of the side frame, and is used for limiting the top of the lifeboat. A driving structure is arranged on one side of the locking device. The displacement sensor and the driving structure are electrically connected.

[0008] Preferably, the adjusting mechanism comprises a screw rod rotatably mounted on one side of the supporting arm, the outer part of the screw rod is sleeved with a moving seat, the outer part of the moving seat is movably connected with a connecting rod, one side of the supporting arm is fixedly provided with a bottom block, and the top end of the connecting rod is movably connected with the bottom block.

[0009] Preferably, the inner part of the moving seat is movably provided with a nut seat corresponding to the screw rod, and the inner part of the bottom block is provided with an adjusting hole corresponding to the connecting rod.

[0010] Preferably, the driving structure comprises a gear rotatably mounted in the inner part of the side frame, one side of the gear is engaged with a toothed plate, and the end of the toothed plate is slidably mounted on the inner wall of the side frame.

[0011] The inner part of the side frame is provided with an electromagnet, the electromagnet is electrically connected with the displacement sensor, and the inner part of the toothed plate is provided with a magnetic block corresponding to the electromagnet.

[0012] Preferably, the magnetic field generated by the electromagnet has the same magnetic pole as the magnetic pole of the magnetic block, and the toothed plate and the side frame are fixedly connected with a spring.

[0013] Preferably, the locking device comprises a rotating shaft fixedly mounted at the center of the gear, the rotating shaft penetrates one side of the side frame, the outer part of the rotating shaft is sleeved with a fixed block, the end of the rotating shaft is fixedly provided with a swing rod, the outer part of the swing rod is sleeved with a sleeve rod, the outer part of the sleeve rod is sleeved with a locking frame, and the locking frame is slidably mounted on the outer part of the fixed block.

[0014] Preferably, the inner part of the locking frame is provided with an arc-shaped groove corresponding to the fixed block, and the end of the locking frame is connected with a connecting chain.

[0015] An operation method of a special barge transfer trolley for lifeboat maintenance is applied to the special barge transfer trolley for lifeboat maintenance, and comprises the following steps:

[0016] S101, when lifting a small open lifeboat, first use the crane to stably lift the lifeboat, move to one side of the frame, ensure that the lifeboat corresponds to the bottom frame up and down, make the memory rubber at the top of the telescopic supporting rod contact the top of the lifeboat, shorten the side frame, and then stably put the lifeboat;

[0017] S102, after lifting to the whole frame, ensure that the boat body is completely placed on all telescopic supporting rods, move the moving seat by rotating the outer screw rod, pull down the bottom block at the bottom of the supporting arm through the combination of the moving seat and the connecting rod, thereby adjusting the inclination angle of the supporting arm, until the memory rubber on one side of the supporting arm is matched with the curved surface of the lifeboat, the load of the lifeboat is dispersed, and whether all supporting points are in good contact is checked, and the inclination angle of the supporting arm is adjusted if necessary.

[0018] S103, when the displacement sensor of the telescopic support rod is subjected to displacement during the lifting process, the displacement sensor connects the driving structure at the top end of the side frame, connects the current of the electromagnet, the magnetic field generated by the electromagnet pushes the gear plate, the gear plate moves to drive the gear to rotate, after the gear and the rotating shaft rotate, the locking device is driven to rotate, the rotating shaft in the locking device drives the swing rod to rotate, the swing rod drives the sleeve rod to rotate to pull the locking frame to rotate, until the locking frame is engaged with the outside of the lifeboat and is locked;

[0019] S104, when lifting the large closed lifeboat, repeat the above steps, when the driving structure drives the locking frame in the locking device to rotate, contact the outside of the lifeboat, until the lifeboat is lifted to the whole frame, and the rotation of the locking frame stops;

[0020] S105, one end of the connecting chain is firmly connected in the arc-shaped groove in the locking frame, the other end is wound around or passed through the reinforced point of the lifeboat and connected to the other set of symmetrical locking frames, and each connecting chain is symmetrically and uniformly tensioned, after lifting is completed, the lifeboat is pushed by hand to check whether there is obvious displacement or shaking.

[0021] The beneficial effects of the present application are:

[0022] The crane stably lifts the lifeboat and moves to one side of the frame, ensures that the lifeboat corresponds to the bottom frame up and down, makes the memory rubber at the top end of the telescopic support rod contact the top end of the lifeboat, shortens the side frame, stably lifts the lifeboat again, and after lifting to the whole frame, ensures that the boat body is completely placed on all telescopic support rods, adjusts the inclination angle of the supporting arm through the adjusting mechanism, until the memory rubber on one side of the supporting arm is adapted to the curved surface of the lifeboat, and the lifeboat is loaded and the weight is dispersed;

[0023] Meanwhile, when the displacement sensor of the telescopic support rod is subjected to displacement during the lifting process, the displacement sensor connects the driving structure at the top end of the side frame, pulls the locking device to rotate, until the locking frame is engaged with the outside of the lifeboat and is locked, the whole can adapt to lifeboats of different specifications, has the function of free adjustment, and solves the problems of poor stability, low operation efficiency and large safety hidden danger. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only illustrate the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0026] Figure 2This is a front view of the overall structure of the present invention;

[0027] Figure 3 This is a top view of the overall structure of the invention;

[0028] Figure 4 This is a rear view schematic diagram of the overall structure of the present invention;

[0029] Figure 5 In this invention Figure 4 A schematic diagram of the three-dimensional structure;

[0030] Figure 6 This is a schematic diagram of the planar structure of the internal drive structure of the side frame in this invention.

[0031] The components in the diagram are labeled as follows: 1. Traction arm; 2. Frame; 3. Wheel; 4. Bearing frame; 5. Support arm; 6. Adjustment mechanism; 61. Screw; 62. Moving seat; 63. Connecting rod; 64. Base block; 65. Adjustment hole; 7. Telescopic support rod; 8. Displacement sensor; 9. Locking device; 91. Shaft; 92. Fixing block; 93. Locking frame; 94. Swing rod; 95. Sleeve rod; 96. Arc groove; 97. Connecting chain; 10. Side frame; 11. Memory rubber; 12. Drive structure; 13. Gear; 14. Tooth plate; 15. Electromagnet; 16. Magnetic block. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a special barge for lifeboat maintenance includes a frame 2 and a towing arm 1 on one side of the frame 2 for connecting to an external vehicle. The bottom of the frame 2 is provided with wheels 3. Multiple sets of support frames 4 corresponding to the front, middle and rear parts of the lifeboat are fixedly installed inside the frame 2. The top of the support frame 4 is movably connected to a support arm 5. An adjustment mechanism 6 is provided between the support arm 5 and the support frame 4. The adjustment mechanism 6 is used to adjust the tilt angle of the support arm 5.

[0034] Multiple sets of telescopic support rods 7 are also provided at the top center of the frame 2. The top of the telescopic support rods 7 and the support arm 5 are both provided with memory rubber 11. The telescopic support rods 7 are provided with displacement sensors 8. Multiple sets of side frames 10 are fixedly installed on the frame 2. The top of the side frame 10 is provided with a locking device 9. The locking device 9 is used to restrict the top of the lifeboat. A drive structure 12 is provided on one side of the locking device 9. The displacement sensor 8 is electrically connected to the drive structure 12.

[0035] In this embodiment, the crane stably lifts the lifeboat, moves to one side of the frame 2, ensures that the lifeboat corresponds to the bottom frame 2 up and down, makes the memory rubber 11 at the top of the telescopic support rod 7 contact the top of the lifeboat, shortens the side frame 10, and then stably lifts and releases the lifeboat. After lifting and releasing the lifeboat on the entire frame 2, it is ensured that the boat body is completely seated on all telescopic support rods 7. The inclination angle of the supporting arm 5 is adjusted through the adjusting mechanism 6 until the memory rubber 11 on one side of the supporting arm 5 is adapted to the curved surface of the lifeboat, and the load of the lifeboat is dispersed.

[0036] At the same time, the displacement sensor 8 of the telescopic support rod 7 is displaced, the displacement sensor 8 connects the driving structure 12 at the top of the side frame 10, pulls the locking device 9 to rotate, until the locking frame 93 is engaged with the outside of the lifeboat and locked, thereby solving the problems of poor stability, low operation efficiency, and large safety hazards.

[0037] As an embodiment, as shown in Figure 2 , Figure 3 , Figure 4 The adjusting mechanism 6 comprises a screw rod 61 rotatably installed on one side of the supporting arm 5. The outside of the screw rod 61 is sleeved with a moving seat 62. The outside of the moving seat 62 is movably connected with a connecting rod 63. One side of the supporting arm 5 is fixedly installed with a bottom block 64. The top end of the connecting rod 63 is movably connected with the bottom block 64.

[0038] In this embodiment, the moving seat 62 is moved by rotating the screw rod 61 from the outside. The bottom block 64 at the bottom of the supporting arm 5 is moved up and down by the combination of the moving seat 62 and the connecting rod 63, thereby adjusting the inclination angle of the supporting arm 5.

[0039] At the same time, the supporting arm 5 and the memory rubber 11 can completely fit the curved surface of the bottom of the lifeboat. At least six sets of supporting arms 5 are used throughout the vehicle to tightly fit the front, middle and rear of the lifeboat, ensuring that the weight is evenly distributed, avoiding damage to the boat body due to stress concentration during transportation, and adapting to the barge transportation needs of lifeboats of different specifications.

[0040] As an embodiment, as shown in Figure 4 The inside of the moving seat 62 is movably installed with a nut seat corresponding to the screw rod 61. The inside of the bottom block 64 is provided with an adjusting hole 65 corresponding to the connecting rod 63.

[0041] In this embodiment, the inclination angle of the supporting arm 5 can be changed by the maximum angle by connecting the top end of the connecting rod 63 with different adjusting holes 65, which can adapt to the uneven curved surface at the bottom of the lifeboat.

[0042] As an embodiment, as shown in Figure 4 , Figure 5 and Figure 6As shown, the driving structure 12 includes a gear 13 rotatably mounted inside the side frame 10, one side of the gear 13 engages with a toothed plate 14, the end of the toothed plate 14 is slidingly mounted on the inner wall of the side frame 10;

[0043] The inside of the side frame 10 is provided with an electromagnet 15 electrically connected between the displacement sensor 8, and the inside of the toothed plate 14 is provided with a magnetic block 16 corresponding to the electromagnet 15.

[0044] Wherein, the magnetic field generated by the electromagnet 15 has the same magnetic pole as the magnetic block 16, and the spring is fixedly connected between the toothed plate 14 and the side frame 10.

[0045] In this embodiment, the side frame 10 is provided with a telescopic structure, when the displacement sensor 8 of the telescopic support rod 7 is displaced during the lifting process, the displacement sensor 8 connects the driving structure 12 at the top end of the side frame 10, and the current of the electromagnet 15 is connected, the magnetic field generated by the electromagnet 15 pushes the toothed plate 14, and the toothed plate 14 drives the gear 13 to rotate when moving, the gear 13 rotates with the rotating shaft 91, and drives the locking device 9 to operate.

[0046] As an embodiment, as shown in Figure 4 、 Figure 5 and Figure 6 , the locking device 9 includes a rotating shaft 91 fixedly installed at the center of the gear 13, the rotating shaft 91 penetrates one side of the side frame 10, and the outside of the rotating shaft 91 is sleeved with a fixed block 92, the end of the rotating shaft 91 is fixedly installed with a swing rod 94, the outside of the swing rod 94 is sleeved with a sleeve rod 95, the outside of the sleeve rod 95 is sleeved with a locking frame 93, and the locking frame 93 is slidingly installed on the outside of the fixed block 92.

[0047] Wherein, the inside of the locking frame 93 is provided with an arc-shaped groove 96 corresponding to the fixed block 92, and the end of the locking frame 93 is connected with a connecting chain 97.

[0048] In this embodiment, a plurality of locking frames 93 can be connected to each other through the connecting chain 97, the driving structure 12 drives the locking device 9 to operate, the rotating shaft 91 in the locking device 9 drives the swing rod 94 to rotate, and the swing rod 94 drives the sleeve rod 95 to rotate when pulling the locking frame 93 to rotate, until the locking frame 93 is engaged with the outside of the lifeboat and locked, and for large lifeboats, the combination of binding, supporting and locking is adopted.

[0049] The embodiment also provides an operation method of the above-mentioned lifeboat maintenance special-purpose barge trolley, further comprising the following steps,

[0050] S101, when lifting a small open lifeboat, first use the crane to lift the lifeboat smoothly, move to the side of the frame 2, ensure that the lifeboat corresponds to the bottom frame 2, make the memory rubber 11 on the top of the telescopic support rod 7 contact the top of the lifeboat, shorten the side frame 10, and then stably lift the lifeboat;

[0051] S102, after lifting onto the whole frame 2, ensure that the boat body is completely seated on all telescopic support rods 7, move the moving seat 62 by rotating the external screw rod 61, pull down the bottom block 64 at the bottom of the supporting arm 5 to move up and down, thereby adjusting the inclination angle of the supporting arm 5, until the memory rubber 11 on one side of the supporting arm 5 matches the curved surface of the lifeboat, disperses the weight of the lifeboat, and checks whether all support points are in good contact, if necessary, adjust the inclination angle of the supporting arm 5;

[0052] S102, when lifting the process, the displacement sensor 8 of the telescopic support rod 7 is displaced, the displacement sensor 8 connects the driving structure 12 at the top of the side frame 10, connects the current of the electromagnet 15, the magnetic field generated by the electromagnet 15 pushes the gear plate 14, when the gear plate 14 moves, the gear plate 14 drives the gear 13 to rotate, after the gear 13 rotates with the rotating shaft 91, the locking device 9 is driven to rotate, the rotating shaft 91 in the locking device 9 drives the swing rod 94 to rotate, when the swing rod 94 drives the sleeve rod 95 to rotate, the locking frame 93 is pulled to rotate, until the locking frame 93 is clamped with the outside of the lifeboat and locked;

[0053] S104, when lifting a large closed lifeboat, repeat the above steps, when the driving structure 12 drives the locking frame 93 in the locking device 9 to rotate, contact the outside of the lifeboat, until the locking frame 93 stops rotating after the lifeboat is lifted onto the whole frame 2;

[0054] S105, firmly connect one end of the connecting chain 97 in the arc-shaped groove 96 in the locking frame 93, connect the other end around or through the reinforced point of the lifeboat, connect it to the other set of symmetrical locking frames 93, and symmetrically and uniformly tighten each connecting chain 97, after lifting, push the lifeboat with your hand, check whether there is obvious displacement or shaking.

[0055] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to limit the scope (including claims) of the present application to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in detail.

[0056] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A special-purpose barge trolley for lifeboat maintenance, comprising a frame (2) and a towing arm (1) on one side of the frame (2) for connecting to an external vehicle, the bottom of the frame (2) being provided with wheels (3), characterised in that, The vehicle frame (2) is fixedly installed with multiple sets of support frames (4) corresponding to the front, middle and rear parts of the lifeboat. The top of the support frame (4) is movably connected to the support arm (5). An adjustment mechanism (6) is provided between the support arm (5) and the support frame (4). The adjustment mechanism (6) is used to adjust the tilt angle of the support arm (5). The adjustment mechanism (6) includes a screw (61) rotatably mounted on one side of the support arm (5), a movable seat (62) sleeved on the outside of the screw (61), a connecting rod (63) movably connected to the outside of the movable seat (62), a base block (64) fixedly mounted on one side of the support arm (5), and the top end of the connecting rod (63) movably connected to the base block (64). Multiple sets of telescopic support rods (7) are provided at the top center of the frame (2). Memory rubber (11) is provided at the top of both the telescopic support rods (7) and the support arm (5). Displacement sensors (8) are provided inside the telescopic support rods (7). Multiple sets of side frames (10) are fixedly installed on the frame (2). A locking device (9) is provided at the top of the side frame (10). The locking device (9) is used to restrict the top of the lifeboat. A drive structure (12) is provided on one side of the locking device (9). The displacement sensor (8) is electrically connected to the drive structure (12). The drive structure (12) includes a gear (13) rotatably mounted inside the side frame (10), a toothed plate (14) meshing on one side of the gear (13), the end of the toothed plate (14) being slidably mounted on the inner wall of the side frame (10), an electromagnet (15) being provided inside the side frame (10), the electromagnet (15) being electrically connected to the displacement sensor (8), and a magnetic block (16) corresponding to the electromagnet (15) being provided inside the toothed plate (14). The locking device (9) includes a rotating shaft (91) fixedly installed at the center of the gear (13). The rotating shaft (91) passes through one side of the side frame (10), and a fixing block (92) is sleeved on the outside of the rotating shaft (91). A rocker arm (94) is fixedly installed at the end of the rotating shaft (91). A sleeve rod (95) is sleeved on the outside of the rocker arm (94). A locking frame (93) is sleeved on the outside of the sleeve rod (95). The locking frame (93) is slidably installed on the outside of the fixing block (92).

2. A special-purpose landing dolly for lifeboat maintenance according to claim 1, characterized in that, The movable seat (62) is movably installed with a nut seat corresponding to the screw (61), and the bottom block (64) is provided with an adjustment hole (65) corresponding to the connecting rod (63).

3. The special-purpose davit cart for lifeboat maintenance according to claim 1, characterized in that, The magnetic field poles generated by the electromagnet (15) are the same as those of the magnetic block (16), and a spring is fixedly connected between the toothed plate (14) and the side frame (10).

4. The special-purpose davit cart of claim 1, wherein, The locking frame (93) has an arc-shaped groove (96) inside that corresponds to the fixing block (92), and a connecting chain (97) is connected to the end of the locking frame (93).

5. A method of operating a rescue boat maintenance dedicated transfer trolley applied to the rescue boat maintenance dedicated transfer trolley according to claim 1, characterized by, Includes the following steps: S101, when lifting small open lifeboat, first use the crane to lift the lifeboat smoothly, move to the side of the frame (2), ensure the lifeboat and the bottom frame (2) corresponding up and down, the top memory rubber (11) of telescopic support rod (7) contact the top of lifeboat, shorten the side frame (10), and then put the lifeboat steadily; S102, after lifting to the whole frame (2), ensure that the boat body is completely placed on all telescopic support rods (7), move the moving seat (62) by rotating the screw rod (61) outside, pull down the bottom block (64) at the bottom of the supporting arm (5) through the combination of the moving seat (62) and the connecting rod (63), and then adjust the inclination angle of the supporting arm (5), until the memory rubber (11) on one side of the supporting arm (5) is matched with the curved surface of the lifeboat, the weight is dispersed, and whether all supporting points are in good contact is checked, and the inclination angle of the supporting arm (5) is adjusted if necessary; S103, when the displacement sensor (8) of the telescopic support rod (7) is displaced during lifting, the displacement sensor (8) connects the driving structure (12) at the top of the side frame (10), connects the current of the electromagnet (15), the magnetic field generated by the electromagnet (15) pushes the tooth plate (14), the tooth plate (14) moves to drive the gear (13) to rotate, the gear (13) rotates the shaft (91), drives the locking device (9) to rotate, the shaft (91) in the locking device (9) drives the swing rod (94) to rotate, the swing rod (94) drives the sleeve rod (95) to rotate and pulls the locking frame (93) to rotate, until the locking frame (93) is clamped with the outside of the lifeboat and locked; S104, when lifting large closed lifeboat, repeat the above steps, when the driving structure (12) drives the locking frame (93) in the locking device (9) to rotate and contacts the outside of the lifeboat, until the lifeboat is lifted to the whole frame (2), the locking frame (93) stops rotating; S105, firmly connect one end of the connecting chain (97) in the arc slot (96) in the locking frame (93), wrap or pass the other end through the reinforcing point of the lifeboat, connect it to the other group of symmetrical locking frames (93), and symmetrically and uniformly pull every connecting chain (97), after lifting, push the lifeboat with your hand, check whether there is obvious displacement or shaking.

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