Lifting hook assembly for lifeboat

Abstract

The utility model provides a lifting hook assembly for a lifeboat, which comprises a mounting plate, two hanging bracket plates are arranged at the top of the mounting plate side by side, and a cavity is formed between the two hanging bracket plates; movable lifting hooks are rotationally connected to the tops of the two hanging bracket plates, cable stopping frames are arranged on the front sides of the two hanging bracket plates, brake blocks are rotationally connected to the rear sides of the two hanging bracket plates, and brake grooves are formed in the tops of the brake blocks; the bottoms of the two hanging bracket plates are rotationally connected with half shafts, when the cambered surfaces of the half shafts abut against the brake blocks, the lower ends of the movable hanging hooks are clamped into the brake grooves, and when the planes of the half shafts abut against the brake blocks, the lower ends of the movable hanging hooks rotate out of the brake grooves; a mounting hole is formed in the mounting plate in a penetrating mode and located in the outer side of the cavity, a driving mechanism is arranged in the mounting hole and connected with the half shaft, a blocking cover is arranged between the mounting plate and the hanging bracket plate, the blocking cover surrounds the mounting hole and covers the driving mechanism, and the hole opening of the mounting hole can be effectively sealed; and the sealing performance and the reliability of the lifeboat are not easily influenced.

Description

Technical Field

[0001] The utility model relates to lifeboat accessories, in particular to a hook assembly for a lifeboat. Background Art

[0002] At present, a Chinese patent with the announcement number CN214029055U discloses a lifeboat hook device, which includes a hook, a hanger plate, a stopper frame, a limit plate, a stopper block and a push-pull rod. The hook is vertically rotatably arranged between the two hanger plates, the stopper is fixedly arranged between the two hanger plates at the front side of the hook, the stopper is rotatably arranged between the two hanger plates at the lower end of the hook, the rear end of the stopper is connected to the push-pull rod, the front end of the stopper is located at the lower rear end of the hook, and is used to drive the hook to rotate, the limit plate is rotatably arranged on the inner side of one of the hanger plates, the limit plate is located directly above the stopper, a first swinging rod and a second swinging rod are arranged at the upper end of the limit plate, a protrusion is arranged on the hook, the protrusion is located between the first swinging rod and the second swinging rod, the first swinging rod is used to drive the limiter plate to release the rotation restriction of the stopper through the protrusion when the hook is closed, and the second swinging rod is used to drive the limiter plate through the protrusion to realize the rotation restriction of the stopper when the hook is opened. However, when the above-mentioned hook device is installed on the top of the lifeboat, a through hole needs to be added on the top of the lifeboat for the push-pull rod to pass through. The push-pull rod is located between the two hanger plates, and the space between the two hanger plates is small, so it is difficult for operators to insert tools between the two hanger plates and effectively seal the opening of the through hole, which affects the sealing and reliability of the lifeboat. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a hook assembly for a lifeboat, which has the advantage of not easily affecting the sealing and reliability of the lifeboat.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a hook assembly for a lifeboat, comprising a mounting plate, two hanger plates are arranged side by side on the top of the mounting plate, and a cavity is formed between the two hanger plates; a movable hook is rotatably connected to the top of the two hanger plates, a stopper frame is arranged on the front side of the two hanger plates, and a brake block is rotatably connected to the rear side of the two hanger plates, a brake groove is provided on the top of the brake block, and when the lower end of the movable hook is stuck in the brake groove, the upper end of the movable hook contacts the stopper frame; the bottom of the two hanger plates rotates A half shaft is connected, when the outer ring arc surface of the half shaft conflicts with the brake block, the lower end of the movable hook is stuck in the brake groove, and when the outer ring plane of the half shaft conflicts with the brake block, the lower end of the movable hook rotates out of the brake groove; the mounting plate is penetrated by a mounting hole, the mounting hole is located on the outside of the cavity, a driving mechanism is arranged in the mounting hole, the driving mechanism is connected to the half shaft, and is used to drive the half shaft to rotate, a shield is arranged between the mounting plate and the hanger plate, the shield surrounds the mounting hole and covers the driving mechanism.

[0005] Through the above technical solution, when the lifeboat equipped with the above hook assembly is in a hoisting state, the outer arc surface of the half shaft conflicts with the brake block, and the lower end of the hook is stuck in the brake groove. When the lifeboat equipped with the above hook assembly needs to be released, the half shaft is controlled to rotate through the driving mechanism so that the outer plane of the half shaft gradually approaches the brake block. When the outer plane of the half shaft rotates to the bottom of the brake block, the outer end of the brake block rotates downward and conflicts with the outer plane of the half shaft, and the lower end of the movable hook rotates away from the brake groove. The mounting hole is located outside the cavity, so that the drive mechanism can be disassembled and maintained more conveniently. The shield surrounds the mounting hole and covers the drive mechanism, which can effectively seal the opening of the mounting hole, so that the sealing and reliability of the lifeboat are not easily affected.

[0006] Preferably, the driving mechanism includes a hydraulic cylinder and an extension plate, the cylinder body of the hydraulic cylinder is arranged in the mounting hole, the piston rod of the hydraulic cylinder extends upward from the mounting hole, one end of the extension plate is fixedly connected to the half-shaft, and the other end is hinged to the piston rod of the hydraulic cylinder.

[0007] Through the above technical solution, the piston rod of the hydraulic cylinder can drive the half shaft to rotate through the extension piece when it moves.

[0008] Preferably, a hook shaft is passed through the top of the two hanger plates, both ends of the hook shaft are threadedly connected with hook nuts, and the two hook nuts are respectively tightly pressed against the two hanger plates, and a bushing is provided on the movable hook, and the bushing is rotatably sleeved on the outside of the hook shaft.

[0009] Through the above technical solution, a bushing is arranged on the movable hook to protect the movable hook, so that the movable hook is not easy to wear. The hook shaft is connected to the two hanger plates through two hook nuts, so that the movable hook has the advantage of convenient disassembly and assembly.

[0010] Preferably, a brake shaft is passed through the rear side of the two hanger plates, both ends of the brake shaft are threadedly connected with brake nuts, and the two brake nuts are respectively tightly pressed against the two hanger plates, and the brake block is rotatably sleeved on the outside of the brake shaft.

[0011] Through the above technical solution, the brake shaft is connected to the two hanger plates through two brake nuts, so that the brake block has the advantage of convenient disassembly and assembly.

[0012] Preferably, a safety pin is passed through the middle of the two hanger plates, and when the lower end of the movable hook is inserted into the brake groove, the safety pin conflicts with the front side of the movable hook.

[0013] Through the above technical solution, the safety pin conflicts with the front side of the movable hook to further restrict the movable hook, thereby improving the safety of the hook assembly and avoiding the lifeboat from falling.

[0014] Preferably, one end of the safety pin is fixedly connected to a fixed stop block, and the fixed stop block is used to interfere with one of the hanger plates. The other end of the safety pin is provided with a movable opening, and a movable stop block is rotatably connected in the movable opening. When the movable stop block is rotated to be misaligned with the safety pin, the movable stop block is used to interfere with the other hanger plate.

[0015] Through the above technical solution, after controlling the safety pin to pass through the two hanger plates, the movable stop block is rotated so that the central axis of the movable stop block is staggered with the central axis of the safety pin. At this time, the fixed stop block and the movable stop block cooperate with each other to position the safety pin, so that the safety pin cannot be detached from the two hanger plates.

[0016] Preferably, a rubber sleeve is provided at the end of the safety pin near the movable stopper, and the two ends of the rubber sleeve respectively press against the hanger plate and the movable stopper so that the movable stopper remains perpendicular to the safety pin, and an installation opening is provided at the side wall of the rubber sleeve, and the installation opening is used for the safety pin to be inserted into the inner cavity of the rubber sleeve.

[0017] Through the above technical solution, the rubber sleeve is arranged on the outside of the safety pin and contacts the hanger plate and the movable stopper. It can not only be used to limit the movable stopper to ensure that the movable stopper can always remain perpendicular to the safety pin, but also can be used to limit the safety pin so that the limit pin cannot move axially, thereby avoiding the safety pin from detaching from the two hanger plates.

[0018] Preferably, a torsion spring is provided between the safety pin and the movable stopper, and when the torsion spring is in a force balance state, the movable stopper is perpendicular to the safety pin.

[0019] Through the above technical solution, when the movable stopper is controlled to pass through the two hanger plates along with the safety pin, the movable stopper can be rotated to be perpendicular to the safety pin under the action of the torsion spring, and the operation is more convenient. Furthermore, the torsion spring can keep the movable stopper perpendicular to the safety pin through elastic force, so that the safety pin is not easy to be separated from the two hanger plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of an embodiment;

[0021] Figure 2 is a side view schematic diagram of an embodiment;

[0022] Figure 3 is a cross-sectional schematic diagram of an embodiment;

[0023] Figure 4 It is a schematic diagram of the structure of the safety pin.

[0024] Figure numerals: 1. Mounting plate; 2. Hanger plate; 3. Movable hook; 4. Stop rope rack; 5. Brake block; 6. Brake groove; 7. Half shaft; 8. Mounting hole; 9. Driving mechanism; 91. Hydraulic cylinder; 92. Extension plate; 10. Block cover; 11. Hook shaft; 12. Hook nut; 13. Bushing; 14. Brake shaft; 15. Brake nut; 16. Safety pin; 17. Fixed block; 18. Movable opening; 19. Movable block; 20. Rubber sleeve; 21. Mounting opening; 22. Torsion spring. Implementation

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] A lifeboat hook assembly, such as Figures 1 to 4 As shown, it comprises a mounting plate 1, which is fixed on the lifeboat by bolts. Two hanger plates 2 are arranged side by side on the top of the mounting plate 1, and a cavity is formed between the two hanger plates 2.

[0027] The tops of the two hanger plates 2 are rotatably connected with movable hooks 3, the front sides of the two hanger plates 2 are provided with stopper frames 4, the rear sides of the two hanger plates 2 are rotatably connected with brake blocks 5, the tops of the brake blocks 5 are provided with brake grooves 6, when the lower ends of the movable hooks 3 are inserted into the brake grooves 6, the upper ends of the movable hooks 3 abut against the stopper frames 4.

[0028] The bottom of the two hanger plates 2 is rotatably connected with a half shaft 7. When the outer ring arc surface of the half shaft 7 conflicts with the brake block 5, the lower end of the movable hook 3 is stuck in the brake groove 6. When the outer ring plane of the half shaft 7 conflicts with the brake block 5, the lower end of the movable hook 3 rotates out of the brake groove 6.

[0029] The mounting plate 1 is provided with a mounting hole 8, which is located outside the cavity. A driving mechanism 9 is provided in the mounting hole 8, and the driving mechanism 9 is connected to the half shaft 7 to drive the half shaft 7 to rotate. A shield 10 is provided between the mounting plate 1 and the hanger plate 2, and the shield 10 surrounds the mounting hole 8 and covers the driving mechanism 9. The edge of the shield 10 is sealed by glue, which further improves the sealing performance of the above-mentioned hook assembly.

[0030] The driving mechanism 9 includes a hydraulic cylinder 91 and an extension piece 92. The cylinder body of the hydraulic cylinder 91 is arranged in the mounting hole 8, and the piston rod of the hydraulic cylinder 91 extends upward from the mounting hole 8. One end of the extension piece 92 is fixedly connected to the half shaft 7, and the other end is hinged to the piston rod of the hydraulic cylinder 91.

[0031] A hook shaft 11 is provided on the top of the two hanger plates 2, and hook nuts 12 are threadedly connected to both ends of the hook shaft 11, and the two hook nuts 12 are respectively tightly pressed against the two hanger plates 2. A bushing 13 is provided on the movable hook 3, and the bushing 13 is rotatably sleeved on the outside of the hook shaft 11.

[0032] A brake shaft 14 is passed through the rear side of the two hanger plates 2 , and brake nuts 15 are threadedly connected to both ends of the brake shaft 14 , and the two brake nuts 15 are respectively tightly pressed against the two hanger plates 2 , and the brake block 5 is rotatably sleeved on the outside of the brake shaft 14 .

[0033] A safety pin 16 is provided through the middle of the two hanger plates 2 . When the lower end of the movable hook 3 is inserted into the brake groove 6 , the safety pin 16 abuts against the front side of the movable hook 3 .

[0034] One end of the safety pin 16 is fixedly connected to a fixed stopper 17, which is used to interfere with one of the hanger plates 2. The other end of the safety pin 16 is provided with a movable opening 18, in which a movable stopper 19 is rotatably connected. When the movable stopper 19 is rotated to be misaligned with the safety pin 16, the movable stopper 19 is used to interfere with the other hanger plate 2.

[0035] A rubber sleeve 20 is sleeved on the end of the safety pin 16 near the movable stopper 19. The two ends of the rubber sleeve 20 respectively press against the hanger plate 2 and the movable stopper 19 so that the movable stopper 19 remains perpendicular to the safety pin 16. An installation opening 21 is opened on the side wall of the rubber sleeve 20, and the installation opening 21 is used for the safety pin 16 to be inserted into the inner cavity of the rubber sleeve 20.

[0036] A torsion spring 22 is provided between the safety pin 16 and the movable stopper 19 . When the torsion spring 22 is in a force-balanced state, the movable stopper 19 is perpendicular to the safety pin 16 .

[0037] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A hook assembly for a lifeboat, characterized by: The invention comprises a mounting plate (1), wherein two hanger plates (2) are arranged side by side on the top of the mounting plate (1), and a cavity is formed between the two hanger plates (2); a movable hook (3) is rotatably connected to the top of the two hanger plates (2), a stopper frame (4) is arranged on the front side of the two hanger plates (2), and a brake block (5) is rotatably connected to the rear side of the two hanger plates (2), and a brake groove (6) is provided on the top of the brake block (5), and when the lower end of the movable hook (3) is inserted into the brake groove (6), the upper end of the movable hook (3) contacts the stopper frame (4); a half shaft (7) is rotatably connected to the bottom of the two hanger plates (2), and when the outer arc surface of the half shaft (7) contacts the brake block (5), the brake block (5) is rotatably connected to the bottom of the two hanger plates (2). When the half shaft (7) and the half shaft (5) come into conflict with each other, the lower end of the movable hook (3) is inserted into the brake groove (6); when the outer ring plane of the half shaft (7) comes into conflict with the brake block (5), the lower end of the movable hook (3) turns out of the brake groove (6); the mounting plate (1) is provided with a mounting hole (8) through it, the mounting hole (8) is located on the outside of the cavity, a driving mechanism (9) is provided in the mounting hole (8), the driving mechanism (9) is connected to the half shaft (7) and is used to drive the half shaft (7) to rotate; a shield (10) is provided between the mounting plate (1) and the hanger plate (2), the shield (10) surrounds the mounting hole (8) and covers the driving mechanism (9).

2. A lifeboat hook assembly according to claim 1, characterized in that: The driving mechanism (9) comprises a hydraulic cylinder (91) and an extension plate (92); the cylinder body of the hydraulic cylinder (91) is arranged in the mounting hole (8); the piston rod of the hydraulic cylinder (91) extends upwardly out of the mounting hole (8); one end of the extension plate (92) is fixedly connected to the half shaft (7), and the other end is hinged to the piston rod of the hydraulic cylinder (91).

3. A lifeboat hook assembly according to claim 1, characterized in that: A hook shaft (11) is passed through the top of the two hanger plates (2), and hook nuts (12) are threadedly connected to both ends of the hook shaft (11), and the two hook nuts (12) are respectively tightly pressed against the two hanger plates (2), and a bushing (13) is provided on the movable hook (3), and the bushing (13) is rotatably sleeved on the outside of the hook shaft (11).

4. A lifeboat hook assembly according to claim 1, characterized in that: A brake shaft (14) is passed through the rear side of the two hanger plates (2), and brake nuts (15) are threadedly connected to both ends of the brake shaft (14), and the two brake nuts (15) are respectively tightly abutted against the two hanger plates (2), and the brake block (5) is rotatably sleeved on the outside of the brake shaft (14).

5. A lifeboat hook assembly according to claim 1, characterized in that: A safety pin (16) is provided in the middle of the two hanger plates (2). When the lower end of the movable hook (3) is inserted into the brake groove (6), the safety pin (16) abuts against the front side of the movable hook (3).

6. A lifeboat hook assembly according to claim 5, characterized in that: One end of the safety pin (16) is fixedly connected to a fixed stopper (17), and the fixed stopper (17) is used to abut against one of the hanger plates (2). The other end of the safety pin (16) is provided with a movable opening (18), and a movable stopper (19) is rotatably connected to the movable opening (18). When the movable stopper (19) is rotated to be misaligned with the safety pin (16), the movable stopper (19) is used to abut against the other hanger plate (2).

7. A lifeboat hook assembly according to claim 6, characterized in that: The end of the safety pin (16) close to the movable stopper (19) is sleeved with a rubber sleeve (20), and the two ends of the rubber sleeve (20) are respectively pressed against the hanger plate (2) and the movable stopper (19), so that the movable stopper (19) remains perpendicular to the safety pin (16), and a mounting opening (21) is opened on the side wall of the rubber sleeve (20), and the mounting opening (21) is used for the safety pin (16) to be inserted into the inner cavity of the rubber sleeve (20).

8. A lifeboat hook assembly according to claim 6, characterized in that: A torsion spring (22) is provided between the safety pin (16) and the movable stopper (19); when the torsion spring (22) is in a force-balanced state, the movable stopper (19) is perpendicular to the safety pin (16).

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