A hook device for a marine vessel

Abstract

The utility model belongs to the field of lifting hook device, concretely relates to a lifting hook device for ship, including the lifting hook, the inside sliding sleeve of lifting hook is connected with the connecting seat, both ends of connecting seat all are fixedly connected with dovetail block, dovetail block is connected with lifting hook slidingly, the inside rotation connection of connecting seat has the pivot, the top fixed connection of pivot has the knob, the knob is connected with connecting seat rotationally, the inside of knob has the hexagon recess, the outside rotation sleeve of pivot has the fixed base, the fixed base is connected with connecting seat fixedly. The utility model discloses through design screw rod and the thread cooperation of limiting block, can realize the thread movement of limiting block when rotating knob drives pivot rotation, can make limiting block mobile insertion the inside of lifting hook through the horizontal movement of limiting block, can realize the connection fixed of lifting hook and connecting seat, through the self -locking characteristic of screw rod, can promote the connection stability of connecting seat and lifting hook.

Description

Technical Field

[0001] This utility model relates to the field of hook device technology, specifically a hook device for ships. Background Technology

[0002] Ship hooks are commonly found on ship decks, in ports, and in cargo loading and unloading areas. They are specifically designed for ship operations and can reliably lift heavy objects such as cargo, containers, ship equipment, and maintenance parts.

[0003] Utility model patent CN216613731U discloses a ship hook, relating to the field of shipbuilding technology. The hook body includes a rectangular groove in the center of its upper surface. A lifting plate is slidably connected inside the rectangular groove. A first spring is fixedly connected between the bottom surface of the lifting plate and the inner bottom wall of the rectangular groove. Sliding grooves are formed on both the left and right side walls of the rectangular groove. In this ship hook, the lifting plate moves downwards through the cooperation of a cylindrical groove, a cylindrical rod, and the first spring. The first spring acts as a buffer. The lifting plate slides within the sliding groove through a fixed fit with a baffle, allowing the baffle to release control of a second spring. The second spring then enters the slot through the cooperation of a groove and a locking block, locking the component. Pulling the handle removes the second spring from the slot, achieving a reset effect.

[0004] In the aforementioned prior art, the hook is installed and used by moving a spring-driven locking block and engaging with a slot during use. However, when the hook is subjected to shaking or vibration, the spring's movement can affect the installation stability. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a hook device for ships, which solves the problem of insufficient stability in the connection and use of hooks.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hook device for ships, comprising a hook, a connecting seat slidably sleeved inside the hook, dovetail blocks fixedly connected to both ends of the connecting seat, the dovetail blocks slidably connected to the hook, a rotating shaft rotatably connected inside the connecting seat, a knob fixedly connected to the top of the rotating shaft, the knob rotatably connected to the connecting seat, an internal hexagonal groove provided inside the knob, a fixed seat rotatably sleeved on the outer side of the rotating shaft, the fixed seat fixedly connected to the connecting seat, a connecting mechanism provided on the rotating shaft, and an anti-detachment mechanism provided on the rotating shaft.

[0007] Preferably, the hook has a dovetail groove inside, and a dovetail block is slidably connected inside the dovetail groove. By designing the dovetail groove, the dovetail block can slide inside the dovetail groove.

[0008] Preferably, the connecting mechanism includes a first bevel gear, which is fixedly connected to the lower end of the rotating shaft. A second bevel gear meshes with the outer side of the first bevel gear, and a positive and negative screw is fixedly sleeved inside the second bevel gear. The positive and negative screw is rotatably connected to the connecting seat. Two symmetrically distributed limiting blocks are threadedly connected to the outer side of the positive and negative screw. The limiting blocks are slidably connected to the connecting seat and the hook, respectively. A guide block is fixedly connected to the upper end of the limiting block, and the guide block is slidably connected to the connecting seat. By designing the connecting mechanism, the stability of the connection between the hook and the connecting seat can be improved.

[0009] Preferably, the hook has a limiting groove inside, and a limiting block is slidably connected inside the limiting groove. By designing the limiting groove, the limiting block can slide inside the limiting groove.

[0010] Preferably, the anti-detachment mechanism includes a slot, with a slot provided inside the rotating shaft. A retaining ball is movably fitted inside the slot and is movably connected to a fixed base. A slider is movably fitted outside the retaining ball and is slidably connected to the fixed base. A guide rod is slidably fitted inside the slider and is fixedly connected to the fixed base. A spring is provided on the outside of the guide rod. By designing the anti-detachment mechanism, the rotating shaft can be prevented from rotating due to vibration.

[0011] Preferably, there are multiple slots, which are arranged in a ring and evenly distributed inside the rotating shaft. By designing multiple slots, the ball can roll into the slots at different positions.

[0012] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the fixed base. The spring is designed so that its force can be applied to the slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model designs a screw and a limit block with a threaded fit. When the knob is turned to drive the rotating shaft to rotate, the limit block can move threadedly. The horizontal movement of the limit block can allow it to move and insert into the inside of the hook, thus achieving the connection and fixation between the hook and the connecting seat. The self-locking characteristic of the screw can improve the connection stability between the connecting seat and the hook.

[0015] 2. This utility model, through the design of the insertion and engagement of the ball and the internal groove of the rotating shaft, can limit and lock the rotating shaft in a stationary state, prevent the rotating shaft from rotating due to vibration, further improve the stability of the insertion and engagement of the limiting block and the limiting groove, and thus effectively improve the connection stability of the hook and the connecting seat. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This utility model Figure 2 The front sectional view of the fixed base.

[0020] In the diagram: 1. Hook; 2. Connecting seat; 3. Dovetail block; 4. Dovetail groove; 5. Shaft; 6. Knob; 7. Socket hexagonal groove; 8. Connecting mechanism; 9. Anti-detachment mechanism; 10. Fixing seat; 81. Bevel gear one; 82. Bevel gear two; 83. Positive and negative screws; 84. Limiting block; 85. Limiting groove; 86. Guide block; 91. Slot; 92. Ball catcher; 93. Slider; 94. Guide rod; 95. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2A hook device for ships includes a hook 1, a connecting seat 2 slidably connected inside the hook 1, dovetail blocks 3 fixedly connected to both ends of the connecting seat 2, the dovetail blocks 3 slidably connected to the hook 1, a dovetail groove 4 is provided inside the hook 1, the dovetail blocks 3 are slidably connected inside the dovetail groove 4, the dovetail groove 4 is designed so that the dovetail blocks 3 can slide inside the dovetail groove 4, a rotating shaft 5 is rotatably connected inside the connecting seat 2, a knob 6 is fixedly connected to the top of the rotating shaft 5, the knob 6 is rotatably connected to the connecting seat 2, an internal hexagonal groove 7 is provided inside the knob 6, a fixed seat 10 is rotatably connected to the outer side of the rotating shaft 5, the fixed seat 10 is fixedly connected to the connecting seat 2, a connecting mechanism 8 is provided on the rotating shaft 5, and an anti-detachment mechanism 9 is provided on the rotating shaft 5.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The connecting mechanism 8 includes a bevel gear 81. The lower end of the rotating shaft 5 is fixedly connected to the bevel gear 81. The outer side of the bevel gear 81 is meshed with a bevel gear 82. The inner side of the bevel gear 82 is fixedly sleeved with a positive and negative screw 83. The positive and negative screw 83 is rotatably connected to the connecting seat 2. The outer side of the positive and negative screw 83 is connected by a thread to two symmetrically distributed limiting blocks 84. The limiting blocks 84 are slidably connected to the connecting seat 2 and the hook 1 respectively. The hook 1 has a limiting groove 85 inside. The limiting block 84 is slidably connected inside the limiting groove 85. By designing the limiting groove 85, the limiting block 84 can slide inside the limiting groove 85. The upper end of the limiting block 84 is fixedly connected to a guide block 86. The guide block 86 is slidably connected to the connecting seat 2. By designing the connecting mechanism 8, the connection stability between the hook 1 and the connecting seat 2 can be improved.

[0024] Please see Figure 1 , Figure 2 , Figure 4 The anti-detachment mechanism 9 includes a slot 91. The rotating shaft 5 has a slot 91 inside, and a ball 92 is movably sleeved inside the slot 91. There are multiple slots 91, which are arranged in a ring and evenly distributed inside the rotating shaft 5. By designing multiple slots 91, the ball 92 can roll into the slots 91 at different positions. The ball 92 is movably connected to the fixed seat 10. A slider 93 is movably sleeved on the outside of the ball 92. The slider 93 is slidably connected to the fixed seat 10. A guide rod 94 is slidably sleeved inside the slider 93. The guide rod 94 is fixedly connected to the fixed seat 10. A spring 95 is provided on the outside of the guide rod 94. One end of the spring 95 is fixedly connected to the slider 93, and the other end of the spring 95 is fixedly connected to the fixed seat 10. By designing the spring 95, the force of the spring 95 can act on the slider 93. By designing the anti-detachment mechanism 9, the rotating shaft 5 can be prevented from rotating due to vibration.

[0025] The specific implementation process of this utility model is as follows: When using it, when it is necessary to connect the hook 1, first insert the connecting seat 2 into the inside of the hook 1. At the same time, the dovetail block 3 will slide into the inside of the dovetail groove 4. Then, insert the hexagonal tool into the inside of the knob 6 and rotate the knob 6. The knob 6 drives the rotating shaft 5 to rotate. The rotating shaft 5 will drive the first bevel gear 81 to rotate. The first bevel gear 81 drives the second bevel gear 82 and the positive and negative screws 83 to rotate, so that the limiting block 84 makes threaded movement. The two limiting blocks 84 will move in opposite directions. The limiting block 84 drives the guide block 86 to slide along the connecting seat 2, so that the limiting block 84 moves horizontally and inserts into the inside of the limiting groove 85. At this time, the hook 1 can be limited, and the connection and fixation between the connecting seat 2 and the hook 1 can be realized. Through the self-locking characteristic of the screw, the connection stability between the connecting seat 2 and the hook 1 can be improved.

[0026] When the rotating shaft 5 rotates, the arc surface of the groove 91 inside the rotating shaft 5 will squeeze and push the ball 92. The ball 92 will be squeezed and roll outward. The ball 92 drives the slider 93 to slide along the guide rod 94 and squeeze the spring 95, which can separate the ball 92 from the groove 91. When the limiting block 84 has moved, the rotating shaft 5 stops rotating. At this time, under the elastic action of the spring 95, a reverse thrust will be given to the slider 93, which can push the ball 92 into the groove 91 in another position. At this time, the rotating shaft 5 in the stationary state can be limited and locked, which can prevent the rotating shaft 5 from rotating due to vibration. This can further improve the stability of the insertion and cooperation between the limiting block 84 and the limiting groove 85, and thus effectively improve the connection stability between the hook 1 and the connecting seat 2.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hook device for ships, comprising a hook (1), characterized in that: The hook (1) is slidably fitted with a connecting seat (2). Dovetail blocks (3) are fixedly connected to both ends of the connecting seat (2). The dovetail blocks (3) are slidably connected to the hook (1). The connecting seat (2) is rotatably connected with a rotating shaft (5). A knob (6) is fixedly connected to the top of the rotating shaft (5). The knob (6) is rotatably connected to the connecting seat (2). The knob (6) has an internal hexagonal groove (7). A fixed seat (10) is rotatably fitted to the outside of the rotating shaft (5). The fixed seat (10) is fixedly connected to the connecting seat (2). A connecting mechanism (8) is provided on the rotating shaft (5). An anti-detachment mechanism (9) is provided on the rotating shaft (5).

2. A hook device for ships according to claim 1, characterized in that: The hook (1) has a dovetail groove (4) inside, and a dovetail block (3) is slidably connected inside the dovetail groove (4).

3. A hook device for ships according to claim 1, characterized in that: The connecting mechanism (8) includes a bevel gear one (81), the lower end of the rotating shaft (5) is fixedly connected to the bevel gear one (81), the outer side of the bevel gear one (81) is meshed with a bevel gear two (82), the inner side of the bevel gear two (82) is fixedly sleeved with a positive and negative screw (83), the positive and negative screw (83) is rotatably connected to the connecting seat (2), the outer side of the positive and negative screw (83) is connected by a thread to two symmetrically distributed limiting blocks (84), the limiting blocks (84) are slidably connected to the connecting seat (2) and the hook (1) respectively, the upper end of the limiting block (84) is fixedly connected to a guide block (86), the guide block (86) is slidably connected to the connecting seat (2).

4. A hook device for ships according to claim 3, characterized in that: The hook (1) has a limiting groove (85) inside, and a limiting block (84) is slidably connected inside the limiting groove (85).

5. A hook device for ships according to claim 1, characterized in that: The anti-detachment mechanism (9) includes a slot (91). The slot (91) is provided inside the rotating shaft (5). A ball (92) is movably sleeved inside the slot (91). The ball (92) is movably connected to the fixed seat (10). A slider (93) is movably sleeved on the outside of the ball (92). The slider (93) is slidably connected to the fixed seat (10). A guide rod (94) is slidably sleeved inside the slider (93). The guide rod (94) is fixedly connected to the fixed seat (10). A spring (95) is provided on the outside of the guide rod (94).

6. A hook device for a ship according to claim 5, characterized in that: The number of the slots (91) is multiple, and the multiple slots (91) are arranged in a ring and evenly distributed inside the rotating shaft (5).

7. A hook device for a ship according to claim 5, characterized in that: One end of the spring (95) is fixedly connected to the slider (93), and the other end of the spring (95) is fixedly connected to the fixed seat (10).

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