Hatch cover lifting appliance

Abstract

The utility model relates to the technical field of cargo lifting, and discloses a hatch cover lifting appliance which comprises a lifting appliance body, the lifting appliance body comprises an eye plate, a connecting plate is arranged on the eye plate, a hook foot is arranged on the connecting plate, and the eye plate, the connecting plate and the hook foot are integrally designed. A positioning plate is arranged on the outer surface of the hook foot, the positioning plate is attached to the connecting plate, a limiting block is arranged in the positioning plate, a lifting appliance steel wire rope is arranged on the limiting block, a limiting pin is arranged at the end, away from the limiting block, of the lifting appliance steel wire rope, the limiting block and the limiting pin are connected into a whole through the lifting appliance steel wire rope, and the lifting appliance steel wire rope is connected with the lifting appliance steel wire rope. A groove is formed in the positioning plate, and an inner cavity of the groove is movably connected with the outer surface of the limiting block in a clamped mode. And the boss on the positioning plate and the hook foot can generate relative rotation, so that locking and unlocking of the lifting appliance are realized. The device is simple in structure, light in weight, convenient to install, less in maintenance and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo hoisting, in particular to a hatch cover hoisting device. Background Art

[0002] Ship hatch covers refer to the covers at the cargo hold openings on the open deck of a ship, which are used to ensure the tightness of the cargo hold openings. Common types include folding type, side opening type, and lift-off type. The functions of hatch covers are to protect cargo from loss, ensure the watertightness of the hull, enhance the overall structural strength and rigidity of the ship, and increase the cargo transportation capacity of the ship.

[0003] At present, most of the hatch covers of ships are made of steel and are heavy. For the detachable hatch covers, the hatch covers need to be lifted away when loading and unloading cargo in the cabin, and then lifted onto the ship when needed. The hatch covers are welded with hanging seats, which are usually arranged at the position of the center distance of the corner holes of 20ft containers and 40ft containers (5853×2259 and 11985×2259). Figure 5 As shown, currently the hatch cover is hoisted by a hanger, which matches the hanger seat on the hatch cover. When in use, the lifting points on the hanger match the hanger seat, and after locking, the hatch cover is lifted off by a crane. However, the hanger is large in size and complex in structure, and requires a special crane to cooperate with it, which is costly. Some docks or yards do not have this equipment and are not capable of hoisting the hatch cover in this way. At the same time, the hatch cover is difficult to hoist. Therefore, we propose a hatch cover hoist. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a hatch cover hoisting device, which has the advantages of simple structure, light weight, convenient installation, less maintenance, low cost, etc., and solves the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: a hatch cover sling, comprising a sling, the sling comprising an eye plate, a connecting plate is provided on the eye plate, a hook foot is provided on the connecting plate, and the eye plate, the connecting plate and the hook foot are of an integrated design;

[0008] A positioning plate is provided on the outer surface of the hook foot, and the positioning plate is fitted with the connecting plate. A limit block is provided in the positioning plate, and a sling wire rope is provided on the limit block. A limit pin is provided at one end of the sling wire rope away from the limit block, and the limit block and the limit pin are connected as a whole through the sling wire rope.

[0009] As a preferred technical solution of the utility model, a groove is provided on the positioning plate, and an inner cavity of the groove is movably engaged with an outer surface of the limit block;

[0010] The boss on the positioning plate and the hook foot can rotate relative to each other to achieve locking and opening of the sling.

[0011] As a preferred technical solution of the utility model, the sling is connected to a sling by a rotational clamping method, and a hatch cover is fixedly mounted on the bottom end of the sling.

[0012] As a preferred technical solution of the utility model, the hook foot on the sling is connected to the hanging seat hole on the hanging seat by means of rotational clamping.

[0013] As a preferred technical solution of the utility model, the diagonal angle of the outer hanging seat on the hatch cover is α, the diagonal angle of the inner hanging seat on the hatch cover is β, and β is greater than α;

[0014] The eye plate on the sling can be rotated and adjusted, and is always on the diagonal line of angle α or angle β during operation.

[0015] As a preferred technical solution of the utility model, a shackle is provided on the eye plate on the sling, a rigging wire rope is provided on the shackle, a lifting ring is provided at one end of the rigging wire rope away from the shackle, and the lifting ring is connected to an external crane.

[0016] As a preferred technical solution of the utility model, the slings, shackles, rigging wire ropes and lifting rings can be combined into rigging, and a set of rigging consists of four slings, four shackles, four rigging wire ropes and two lifting rings.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a hatch cover lifting device, which has the following beneficial effects:

[0019] 1. The hatch cover hoist, by taking out the limit pin, pulling the limit block upwards, and rotating the positioning plate, so that the side surface of the hook foot is flush with the side surface of the boss on the positioning plate, and then aligning the hook foot with the hanging seat hole on the inner hanging seat on the hatch cover or aligning the hook foot with the hanging seat hole on the outer hanging seat on the hatch cover, and inserting the hook foot into the hanging seat hole on the hanging seat, and rotating the eye plate ninety degrees at the same time, the limit block falls into the groove on the positioning plate, and the hook foot is locked in the hanging seat hole on the hanging seat and cannot be taken out, and then the limit pin is rotated upwards, and the limit pin is inserted into the limit block, and the limit pin is laid down at the same time, at this time the limit block cannot move upwards, and further locks the hook foot in the hanging seat hole on the hanging seat, and the eye plate can only rotate horizontally at this time, so that it is convenient to assemble the hoist to the hanging seat on the hatch cover. At the same time, the hoist has a simple structure, light weight, convenient installation, less maintenance, and low cost, so as to facilitate the hoisting of the hatch cover.

[0020] 2. The hatch cover lifting device is convenient for lifting the hatch cover by buckling a set of shackles on the rigging on the eye plate on the lifting device, and then combining and connecting a set of lifting rings on the rigging with an external crane, and then using the external crane to lift the hatch cover, thereby facilitating the lifting of the hatch cover, and the operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model sling;

[0022] Figure 2 This is a schematic diagram of the explosion structure of the utility model hanger;

[0023] Figure 3 This is a schematic diagram of a rigging structure of the utility model;

[0024] Figure 4 This is a schematic diagram of adjusting different angles of the eye plate of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the existing hatch cover of the utility model;

[0026] Figure 6 This is a schematic diagram of the top view of the existing hatch cover of the utility model;

[0027] Figure 7 This is a schematic diagram of the hoisting structure of the four inner suspension seats of the utility model;

[0028] Figure 8 It is a schematic diagram of the hoisting structure of four outer suspension seats of the utility model.

[0029] In the figure: 1. sling; 11. eye plate; 12. connecting plate; 13. positioning plate; 131. groove; 14. hook foot; 15. sling wire rope; 16. limit block; 17. limit pin; 2. sling seat; 3. hatch cover; 4. shackle; 5. rigging wire rope; 6. lifting ring. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1-8 , a hatch cover lifting device is provided, including a lifting device 1, the lifting device 1 includes an eye plate 11, a connecting plate 12 is provided on the eye plate 11, a hook foot 14 is provided on the connecting plate 12, and the eye plate 11, the connecting plate 12 and the hook foot 14 are of an integrated design;

[0032] A positioning plate 13 is provided on the outer surface of the hook foot 14, and the positioning plate 13 is fitted with the connecting plate 12. A limit block 16 is provided inside the positioning plate 13, and a sling wire rope 15 is provided on the limit block 16. A limit pin 17 is provided at the end of the sling wire rope 15 away from the limit block 16, and the limit block 16 and the limit pin 17 are connected as a whole through the sling wire rope 15.

[0033] A groove 131 is formed on the positioning plate 13, and the inner cavity of the groove 131 is movably engaged with the outer surface of the limiting block 16;

[0034] The boss on the positioning plate 13 and the hook foot 14 can rotate relative to each other to achieve the locking and opening of the sling.

[0035] The sling 1 is connected to the sling 2 by means of a rotational clamping connection, and a hatch cover 3 is fixedly mounted on the bottom end of the sling 2 so as to lock the sling 1 on the sling 2 by means of a rotational clamping connection.

[0036] The hook foot 14 on the sling 1 is connected to the base hole on the base 2 by means of rotational clamping, so that the hook foot 14 on the sling 1 can be locked in the base hole on the base 2 by means of rotational clamping.

[0037] The diagonal angle of the outer hanging seat 2 on the hatch cover 3 is α, and the diagonal angle of the inner hanging seat 2 on the hatch cover 3 is β, and β is greater than α. Figure 6 As shown;

[0038] The eye plate 11 on the sling 1 can be rotated and adjusted, and is always on the diagonal line of angle α or angle β during operation. When in use, the eye plate 11 on the sling 1 can be automatically adjusted, and is always on the diagonal line of angle α or angle β, and can meet the lifting requirements of different angles, such as Figure 4 shown.

[0039] A shackle 4 is provided on the eye plate 11 on the sling 1, a rigging wire rope 5 is provided on the shackle 4, and a lifting ring 6 is provided at one end of the rigging wire rope 5 away from the shackle 4, and the lifting ring 6 is connected to an external crane.

[0040] The sling 1, the shackle 4, the rigging wire rope 5 and the lifting ring 6 can be combined into a rigging, and a set of rigging is composed of four slings 1, four shackles 4, four rigging wire ropes 5 and two lifting rings 6, such as Figure 3 shown.

[0041] Working principle: By removing the limit pin 17, pulling up the limit block 16, and rotating the positioning plate 13, the side of the hook foot 14 is flush with the side of the boss on the positioning plate 13, and then aligning the hook foot 14 with the hanger hole on the inner hanger 2 on the hatch cover 3 (such as Figure 7 or align the hook foot 14 with the hanger hole on the outer hanger 2 on the hatch cover 3 (as shown in Figure 8As shown), the hook foot 14 is inserted into the seat hole on the seat 2, and the eye plate 11 is rotated ninety degrees at the same time. At this time, the limit block 16 falls into the groove 131 on the positioning plate 13, and the hook foot 14 is locked in the seat hole on the seat 2 and cannot be taken out. Then the limit pin 17 is rotated upward, and the limit pin 17 is inserted into the limit block 16, and the limit pin 17 is laid down at the same time. At this time, the limit block 16 cannot move upward, and the hook foot 14 is further locked in the seat hole on the seat 2, and the eye plate 11 can only rotate horizontally at this time, so that it is convenient to assemble the sling 1 to the seat 2 on the hatch cover 3. At the same time, the sling 1 has a simple structure, light weight, easy installation, less maintenance, and low cost, which makes it convenient to hoist the hatch cover 3;

[0042] Then, a shackle 4 on a set of rigging is buckled on the eye plate 11 on the sling 1, and then a lifting ring 6 on a set of rigging is combined and connected with an external crane, and then the hatch cover 3 is lifted by the external crane, thereby facilitating the lifting of the hatch cover 3, and the operation is simple and quick. The device is not only simple in structure, light in weight, and easy to install, but also requires little maintenance and has low cost.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A hatch cover lifting device, characterized in that: The sling comprises a lifting device (1), wherein the lifting device (1) comprises an eye plate (11), a connecting plate (12) is provided on the eye plate (11), a hook foot (14) is provided on the connecting plate (12), and the eye plate (11), the connecting plate (12) and the hook foot (14) are of an integrated design; The outer surface of the hook foot (14) is provided with a positioning plate (13), the positioning plate (13) is fitted with the connecting plate (12), a limiting block (16) is provided inside the positioning plate (13), a sling wire rope (15) is provided on the limiting block (16), a limiting pin (17) is provided at one end of the sling wire rope (15) away from the limiting block (16), and the limiting block (16) and the limiting pin (17) are connected as a whole through the sling wire rope (15).

2. A hatch cover lifting device according to claim 1, characterized in that: The positioning plate (13) is provided with a groove (131), and the inner cavity of the groove (131) is movably engaged with the outer surface of the limiting block (16); The boss on the positioning plate (13) and the hook foot (14) can rotate relative to each other to achieve locking and opening of the sling.

3. A hatch cover lifting device according to claim 1, characterized in that: The sling (1) is connected to a sling seat (2) by means of a rotational clamping connection, and a hatch cover (3) is fixedly mounted on the bottom end of the sling seat (2).

4. A hatch cover lifting device according to claim 3, characterized in that: The hook foot (14) on the sling (1) is connected to the sling hole on the sling (2) by means of rotational clamping.

5. A hatch cover lifting device according to claim 4, characterized in that: The diagonal angle of the outer hanging seat (2) on the hatch cover (3) is α, the diagonal angle of the inner hanging seat (2) on the hatch cover (3) is β, and β is greater than α; The eye plate (11) on the sling (1) can be rotated and adjusted, and is always on the diagonal line of angle α or angle β during operation.

6. A hatch cover lifting device according to claim 1, characterized in that: A shackle (4) is provided on the eye plate (11) on the sling (1), a rigging wire rope (5) is provided on the shackle (4), a lifting ring (6) is provided at one end of the rigging wire rope (5) away from the shackle (4), and the lifting ring (6) is connected to an external crane.

7. A hatch cover lifting device according to claim 6, characterized in that: The sling (1), shackle (4), rigging wire rope (5) and lifting ring (6) can be combined into a rigging, and a set of rigging consists of four slings (1), four shackles (4), four rigging wire ropes (5) and two lifting rings (6).

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