A hatch cover turning device, turning method and ship

Abstract

The application discloses a hatch cover turnover device, a turnover method and a ship, and belongs to the technical field of ships. The hatch cover turnover device comprises a turnover mechanism, the turnover mechanism comprises a turnover block, a fixed pulley and a traction rope, the turnover block comprises a supporting plate, the supporting plate is rotationally connected to a wall plate of a cargo hold of the ship, the fixed pulley is arranged on a main deck of the ship, the traction rope passes through the fixed pulley, one end of the traction rope is connected to the turnover block, and the other end of the traction rope can be fixed to the main deck; the traction rope can pull the turnover block to make the supporting plate be in a working state, so as to support a hatch cover; and the traction rope can pull the turnover block to make the supporting plate be in a recovery state. The hatch cover turnover device, the turnover method and the ship are convenient to construct and improve construction safety.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a hatch cover flipping device, flipping method, and ship. Background Technology

[0002] Container ships, heavy-lift vessels, and similar vessels are equipped with multiple independent hatch covers, which are laid out side by side and supported by flip-up blocks on the cargo hold bulkheads. Each hatch cover is supported by flip-up blocks on both sides. When in use, personnel use long poles such as bamboo poles to pull the flip-up blocks open and lay them flat, with the hatch cover supported on the flip-up blocks, or to push the flip-up blocks up, retrieve, and remove the hatch cover. The construction is complex, and the construction environment is uncontrolled (affected by cargo type, toxic gases, etc.), which is not conducive to personnel safety. Summary of the Invention

[0003] The purpose of this invention is to provide a hatch cover flipping device, flipping method, and vessel that are easy to construct and improve construction safety.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A hatch flipping device includes a flipping mechanism, the flipping mechanism comprising:

[0006] A tilting block, the tilting block including a support plate, the support plate being rotatably connected to the bulkhead of the ship's cargo hold;

[0007] A fixed pulley, wherein the fixed pulley is located on the main deck of the ship;

[0008] A traction rope, which passes over the fixed pulley, has one end connected to the tilting block and the other end fixed to the main deck;

[0009] The traction rope can pull the tilting block to put the support plate into a working state for supporting the hatch cover; the traction rope can also pull the tilting block to put the support plate into a retracted state.

[0010] In some embodiments, the wall panel is provided with a recessed groove, and when the support plate is in the working state, it is located outside the recessed groove and perpendicular to the wall panel; when the support plate is in the retracted state, the support plate is located inside the recessed groove.

[0011] In some embodiments, the flipping mechanism further includes a housing disposed within the recessed groove. The housing includes an upper plate and a lower plate arranged in a vertical direction, two vertical plates arranged in a first direction, and a front plate and a rear plate arranged in a second direction, wherein the first direction and the second direction are perpendicular to each other. A first opening is provided between the front plate and the upper plate, and a second opening is provided between the rear plate and the lower plate. The support plate can be flipped out of the housing through the first opening to be in a working state, and the traction rope passes through the second opening to be connected to the flipping block.

[0012] In some embodiments, the support plate is rotatably connected to two vertical plates via a pivot shaft, and the pivot shaft is located inside the front plate, so that the support plate can be retracted to a position parallel to the front plate and located in a recessed groove.

[0013] In some embodiments, the support plate includes a first plate portion and a second plate portion, and the pivot is connected between the first plate portion and the second plate portion. The first plate portion is used to support the hatch cover. A first counterweight is installed on the first plate portion, and when the support plate is in the working state, the first counterweight is located at the bottom of the first plate portion. A second counterweight is installed on the second plate portion, and the second counterweight is perpendicular to the second plate portion. When the support plate is in the working state, the second counterweight is located above the second plate portion. The weight of the second counterweight is greater than the weight of the first counterweight.

[0014] In some embodiments, along the second direction, the front panel is recessed into the wall panel to increase the space of the cargo compartment.

[0015] In some embodiments, at least two of the tilting mechanisms are arranged at intervals along the direction from the bow to the stern of the vessel, and the tilting blocks of adjacent tilting mechanisms are connected by a linkage.

[0016] In some embodiments, at least two hatches are provided vertically inside the cargo hold, and at least two tilting mechanisms are arranged vertically on the wall panel. The tilting blocks of the tilting mechanisms are used to support the hatches. At least two locking structures are provided on the main deck, and the locking structures are used to lock the towing ropes of the tilting mechanisms.

[0017] A hatch cover flipping method employs a hatch cover flipping device as described in any of the preceding claims. At least two hatch covers are vertically arranged inside the cargo hold. At least two flipping blocks are vertically arranged on the bulkhead of the cargo hold, each flipping block supporting one of the hatch covers. At least two flipping blocks and at least two towing ropes are correspondingly arranged. At least two locking structures are provided on the main deck, each locking structure correspondingly locking the towing ropes. The hatch cover flipping method includes:

[0018] When the lower hatch is hoisted in, the upper flipping block is in a retracted state;

[0019] The lower flipping block is pulled by the traction rope corresponding to the lower flipping block, so that the lower flipping block is in working state;

[0020] The lower hatch is hoisted in to support the lower tilting block.

[0021] A vessel including a hatch cover tilting device as described in any of the preceding claims.

[0022] The beneficial effects of this invention are:

[0023] This invention provides a hatch cover flipping device, flipping method, and vessel. A traction rope pulls the flipping block to flip it into a working state, i.e., a flat position, where the hatch cover can be supported. At this point, the traction rope is fixed to the main deck, ensuring stable installation of the hatch cover. The traction rope can also pull the flipping block to flip it into a retracted state, without affecting the lifting or lowering of hatch covers on other decks. The traction rope pulls the flipping block to switch between the working and retracted states. A movable pulley guides the traction rope, the end of which is located on the main deck, allowing operation from there. The movable pulley changes the direction of force applied to the traction rope, allowing the force originally applied vertically to be applied horizontally, improving the stability of the traction process, preventing rope deviation or jamming, reducing construction difficulty, making construction more convenient, and improving construction safety. Attached Figure Description

[0024] Figure 1 This is a longitudinal sectional view of a ship provided in a specific embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional schematic diagram of a ship provided in a specific embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the flipping mechanism provided in a specific embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the flipping block and the traction rope provided in a specific embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the flipping mechanism in the recycling state provided in a specific embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the flipping mechanism provided in a specific embodiment of the present invention during the rotation process;

[0030] Figure 7This is a schematic diagram of the flipping mechanism in working state according to a specific embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of multiple locking structures provided in a specific embodiment of the present invention;

[0032] Figure 9 This is a flowchart of a hatch flipping method provided in a specific embodiment of the present invention.

[0033] In the picture:

[0034] 100. Tilting block; 110. Support plate; 120. Rotating shaft; 130. First plate section; 140. Second plate section; 150. First counterweight; 160. Second counterweight; 170. Lifting hole;

[0035] 200. Fixed pulley;

[0036] 300. Tow rope; 310. Pull ring;

[0037] 400. Box body; 410. Top plate; 420. Bottom plate; 430. Vertical plate; 440. Front plate; 450. Rear plate; 460. First opening; 470. Second opening; 480. Stop block;

[0038] 500, connecting rod;

[0039] 600. Tilting mechanism;

[0040] 1100, Cargo hold; 1200, Bulkhead; 1300, Main deck; 1400, Recessed groove; 1500, Hatch cover; 1600, Locking structure; 1700, Bow; 1800, Stern. Detailed Implementation

[0041] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] like Figures 1-8 As shown, this embodiment provides a ship, including a main deck 1300, a cargo hold 1100 and a hatch cover 1500. The cargo hold 1100 is located between the bow 1700 and the stern 1800 of the ship, and the hatch cover 1500 is used to cover the hatch opening of the cargo hold 1100. This embodiment also provides a hatch cover flipping device, including a flipping mechanism 600. The flipping mechanism 600 includes a flipping block 100, a fixed pulley 200, and a traction rope 300. The flipping block 100 includes a support plate 110, which is rotatably connected to the bulkhead 1200 of the cargo hold 1100 of the ship. The fixed pulley 200 is located on the main deck 1300 of the ship. The traction rope 300 passes around the fixed pulley 200, with one end connected to the flipping block 100 and the other end fixed to the main deck 1300. The traction rope 300 can pull the flipping block 100 to put the support plate 110 into a working state to support the hatch cover 1500. The traction rope 300 can also pull the flipping block 100 to put the support plate 110 into a retracted state.

[0045] In one embodiment, two hatch cover flipping devices are provided along a first direction. When the flipping blocks 100 of the two hatch cover flipping devices are in working state at the same time, they are used to support the hatch cover 1500.

[0046] The towing rope 300 pulls the flipping block 100 to flip it so that the support plate 110 is in the working state, that is, the support plate 110 is in the flat state, and the hatch cover 1500 can be supported on the support plate 110. At this time, the towing rope 300 is fixed on the main deck 1300 to ensure the stable installation of the hatch cover 1500. The towing rope 300 pulls the flipping block 100 to flip it so that the support plate 110 is in the retraction state, which does not affect the lifting or lowering of hatch covers 1500 on other decks. The traction rope 300 pulls the tilting block 100 to switch between the working state and the recovery state. A movable pulley is set to guide the traction rope 300. The end of the traction rope 300 is located on the main deck 1300, so it can be operated on the main deck 1300. The movable pulley changes the direction of force applied by the traction rope 300, so that the force originally in the vertical direction can be applied in the horizontal direction, which improves the stability of the traction process, avoids the traction rope 300 from deviating or getting stuck, reduces the difficulty of construction, makes construction more convenient, and improves construction safety.

[0047] Optionally, the wall panel 1200 is provided with a recessed groove 1400. When the support plate 110 is in the working state, it is located outside the recessed groove 1400 and perpendicular to the wall panel 1200. When the support plate 110 is in the retracted state, it is located inside the recessed groove 1400, further freeing up space to prevent interference with the lifting or lowering of other layer hatch covers 1500.

[0048] The tilting mechanism 600 also includes a housing 400 disposed within a recessed groove 1400. The housing 400 includes an upper plate 410 and a lower plate 420 arranged vertically, two vertical plates 430 arranged in a first direction, and a front plate 440 and a rear plate 450 arranged in a second direction, which are perpendicular to each other. A first opening 460 is provided between the front plate 440 and the upper plate 410, and a second opening 470 is provided between the rear plate 450 and the lower plate 420. The support plate 110 can be tilted out of the housing 400 through the first opening 460 to be in a working state, and the traction rope 300 passes through the second opening 470 to connect with the tilting block 100. In the second direction, the front plate 440 is recessed in the wall panel 1200 to increase the space of the cargo hold 1100 and further prevent the tilting block 100 from interfering with the lifting or lowering of other hatch covers 1500.

[0049] The support plate 110 is rotatably connected to the two vertical plates 430 via a pivot 120, and the pivot 120 is located inside the front plate 440, so that the support plate 110 can be retracted to be in the recessed groove 1400 when it is parallel to the front plate 440. For example, the two ends of the pivot 120 are rotatably connected to the two vertical plates 430 respectively via bearings.

[0050] The support plate 110 includes a first plate portion 130 and a second plate portion 140. A rotating shaft 120 is connected between the first plate portion 130 and the second plate portion 140. The first plate portion 130 is used to support the hatch 1500. A first counterweight 150 is installed on the first plate portion 130. When the support plate 110 is in the working state, the first counterweight 150 is located at the bottom of the first plate portion 130. A second counterweight 160 is installed on the second plate portion 140. The second counterweight 160 is perpendicular to the second plate portion 140. When the support plate 110 is in the working state, the second counterweight 160 is located above the second plate portion 140. The weight of the second counterweight 160 is greater than the weight of the first counterweight 150. When the traction rope 300 is not pulled up, the second counterweight 160 uses gravity to flip the tilting block 100 to the retracted state. When the traction force is greater than the weight difference between the second counterweight 160 and the first counterweight 150, the second counterweight 160 rises while the first counterweight 150 tilts downwards. Gravity easily assists the tilting block 100 to reach the working position. Utilizing the principle of similar weight between the upper and lower counterweights, a gravity-balanced tilting mechanism is achieved, further reducing construction difficulty. Optionally, the second counterweight 160 is 0.5kg to 2kg heavier than the first counterweight 150, such as 0.5kg, 1kg, 1.5kg, or 2kg.

[0051] Optionally, the second counterweight 160 is provided with a lifting hole 170, and the traction rope 300 is connected to the lifting hole 170.

[0052] Optionally, the housing 400 is also provided with a stop block 480. When the flip block 100 is in the retracted state, the support plate 110, i.e. the first plate portion 130, abuts against the stop block 480 on the side away from the first counterweight block 150.

[0053] The cargo hold 1100 has at least two hatch covers 1500 arranged vertically. At least two tilting mechanisms 600 are arranged vertically on the bulkhead 1200. The tilting blocks 100 of the tilting mechanisms 600 support the hatch covers 1500. The main deck 1300 has at least two locking structures 1600, which lock the towing ropes 300 of the tilting mechanisms 600. The locking structures 1600, tilting mechanisms 600, and hatch covers 1500 are correspondingly arranged. The tilting mechanisms 600 support the hatch covers 1500, and the locking structures 1600 fix the towing ropes 300. The working and recovery states of the different tilting mechanisms 600 do not affect each other, thus ensuring good independence when different hatch covers 1500 are lifted or lowered.

[0054] Optionally, the locking structure 1600 is a perforated plate, and the traction rope 300 is equipped with a pull ring 310. Bolts are used to lock the pull ring 310 of the traction rope 300 through and to the perforated plate. Multiple locking structures 1600 are arranged along the second direction on the main deck 1300 to fix the corresponding traction ropes 300, preventing them from colliding. Multiple fixed pulleys 200 are provided, enabling multi-dimensional steering regardless of the installation position, thus meeting the operational position layout requirements.

[0055] Along the direction from bow 1700 to stern 1800, at least two tilting mechanisms 600 are arranged at intervals, and the tilting blocks 100 of adjacent tilting mechanisms 600 are connected by connecting rods 500. In one embodiment, the hatch cover 1500 is supported by the tilting blocks 100 of four tilting mechanisms 600, with two tilting mechanisms 600 on each side. The tilting blocks 100 of the two tilting mechanisms 600 on each side are connected by connecting rods 500. The connecting rods 500 are used to connect the tilting blocks 100 at the same height, and a traction rope 300 is used for control to realize the linkage and retraction operation of the tilting mechanisms 600 corresponding to the same hatch cover 1500, thereby achieving efficient operation. In one embodiment, at least two hatches 1500 are provided along the direction from bow 1700 to stern 1800. The flipping mechanisms 600 supporting the different hatches 1500 are connected by a connecting rod 500 and controlled by a traction rope 300, so as to realize the linkage of the flipping mechanisms 600 corresponding to multiple hatches 1500, thereby further improving the efficiency.

[0056] like Figure 9 As shown, this embodiment also provides a hatch cover flipping method, employing the hatch cover flipping device described above. At least two hatch covers 1500 are vertically arranged inside the cargo hold 1100. At least two flipping blocks 100 are vertically arranged on the bulkhead 1200 of the cargo hold 1100, each flipping block 100 correspondingly supporting a hatch cover 1500. At least two flipping blocks 100 and at least two towing ropes 300 are correspondingly arranged. At least two locking structures 1600 are provided on the main deck 1300, each locking structure 1600 correspondingly locking the towing ropes 300. The upper hatch cover 1500 and the lower hatch cover 1500 are relative concepts, with the upper hatch cover 1500 located above the lower hatch cover 1500. The hatch cover flipping method includes:

[0057] S100 When the lower hatch cover 1500 is hoisted in, the upper flip block 100 is put in the retracted state to prevent interference between the lower hatch cover 1500 and the upper flip block 100.

[0058] S200: The lower flip block 100 is pulled by the traction rope 300 corresponding to the lower flip block 100, so that the lower flip block 100 is in working state.

[0059] S300, the hatch cover 1500 is hoisted into the lower layer to be supported by the tilting block 100 on the lower layer.

[0060] When three or more hatch covers 1500 are provided, the following example is taken with three hatch covers 1500, which are the first hatch cover, the second hatch cover and the third hatch cover from top to bottom.

[0061] When the third hatch is hoisted in, the tilting mechanisms 600 corresponding to the first and second hatches are in the retracted state; the tilting block 100 of the corresponding tilting mechanism 600 is pulled by the traction rope 300 corresponding to the third hatch to make it in the working state, and then the third hatch is hoisted in to be supported on the tilting block 100.

[0062] The support plate 110 includes a first plate portion 130 and a second plate portion 140. A rotating shaft 120 is connected between the first plate portion 130 and the second plate portion 140. The first plate portion 130 is used to support the hatch 1500. A first counterweight 150 is installed on the first plate portion 130. When the support plate 110 is in the working state, the first counterweight 150 is located at the bottom of the first plate portion 130. A second counterweight 160 is installed on the second plate portion 140. The second counterweight 160 is perpendicular to the second plate portion 140. When the support plate 110 is in the working state, the second counterweight 160 is located above the second plate portion 140. The weight of the second counterweight 160 is greater than the weight of the first counterweight 150. When the traction rope 300 is not pulled up, the second counterweight 160 uses gravity to flip the flipping block 100 and flip it to the retraction state. When the traction force is greater than the weight difference between the second counterweight 160 and the first counterweight 150, the second counterweight 160 rises and the first counterweight 150 tilts downward. Gravity can easily assist the flipping block 100 to reach the working position.

[0063] Optionally, after the upper hatch cover 1500 is lifted off the ground, the towing rope 300 is released, separating it from the locking structure 1600. The tilting block 100 is then lowered to its retraction state and retrieved into the recessed groove 1400, thus ensuring that the lifting or lowering of the lower hatch cover 1500 is unaffected by the upper tilting block 100. Before lowering the hatch cover 1500, the towing rope 300 is pulled up and secured to the locking structure 1600, and the tilting block 100 is pulled up to its working state.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A hatch flipping device, characterized in that, Includes a flipping mechanism (600), said flipping mechanism (600) comprising: A tilting block (100) includes a support plate (110) which is rotatably connected to the bulkhead (1200) of the cargo hold (1100) of the ship; A fixed pulley (200) is provided on the main deck (1300) of the ship; A traction rope (300) passes around the fixed pulley (200), with one end connected to the tilting block (100) and the other end fixed to the main deck (1300); The traction rope (300) can pull the flipping block (100) to put the support plate (110) into a working state to support the hatch cover (1500); the traction rope (300) can pull the flipping block (100) to put the support plate (110) into a retracted state. The wall panel (1200) is provided with a recessed groove (1400). When the support plate (110) is in the working state, it is located outside the recessed groove (1400) and perpendicular to the wall panel (1200); when the support plate (110) is in the retracted state, it is located inside the recessed groove (1400). The flipping mechanism (600) further includes a housing (400) disposed in the recessed groove (1400). The housing (400) includes an upper plate (410) and a lower plate (420) arranged in a vertical direction, two vertical plates (430) arranged in a first direction, and a front plate (440) and a rear plate (450) arranged in a second direction, the first direction and the second direction being perpendicular to each other. A first opening (460) is provided between the front plate (440) and the upper plate (410), and a second opening (470) is provided between the rear plate (450) and the lower plate (420). The support plate (110) can be flipped out of the housing (400) through the first opening (460) to be in the working state, and the traction rope (300) passes through the second opening (470) to be connected to the flipping block (100). The support plate (110) is rotatably connected to two vertical plates (430) via a pivot (120), and the pivot (120) is located inside the front plate (440) so that the support plate (110) can be retracted to be in the recessed groove (1400) when it is parallel to the front plate (440).

2. The hatch flipping device according to claim 1, characterized in that, The support plate (110) includes a first plate portion (130) and a second plate portion (140). The rotating shaft (120) is connected between the first plate portion (130) and the second plate portion (140). The first plate portion (130) is used to support the hatch (1500). A first counterweight (150) is installed on the first plate portion (130). When the support plate (110) is in the working state, the first counterweight (150) is located at the bottom of the first plate portion (130). A second counterweight (160) is installed on the second plate portion (140). The second counterweight (160) is perpendicular to the second plate portion (140). When the support plate (110) is in the working state, the second counterweight (160) is located above the second plate portion (140). The weight of the second counterweight (160) is greater than the weight of the first counterweight (150).

3. The hatch flipping device according to claim 1, characterized in that, Along the second direction, the front panel (440) is recessed on the wall panel (1200) to increase the space of the cargo compartment (1100).

4. The hatch flipping device according to claim 1, characterized in that, At least two of the tilting mechanisms (600) are arranged at intervals along the direction from the bow (1700) to the stern (1800) of the ship, and the tilting blocks (100) of adjacent tilting mechanisms (600) are connected by a connecting rod (500).

5. The hatch tilting device according to any one of claims 1-4, characterized in that, The cargo hold (1100) is provided with at least two hatch covers (1500) in the vertical direction. At least two tilting mechanisms (600) are arranged in the vertical direction on the wall panel (1200). The tilting block (100) of the tilting mechanism (600) is used to support the hatch cover (1500). The main deck (1300) is provided with at least two locking structures (1600). The locking structures (1600) are used to lock the towing rope (300) of the tilting mechanism (600).

6. A method for flipping a hatch, characterized in that, Using the hatch cover flipping device as described in any one of claims 1-5, at least two hatch covers (1500) are provided vertically inside the cargo hold (1100), at least two flipping blocks (100) are arranged vertically on the wall panel (1200) of the cargo hold (1100), the flipping blocks (100) are used to support the hatch covers (1500), at least two flipping blocks (100) and at least two towing ropes (300) are correspondingly arranged, at least two locking structures (1600) are provided on the main deck (1300), the locking structures (1600) are used to lock the towing ropes (300); the hatch cover flipping method includes: When the lower hatch cover (1500) is hoisted in, the upper flip block (100) is placed in the recovery state; The lower flip block (100) is pulled by the traction rope (300) corresponding to the lower flip block (100) so that the lower flip block (100) is in the working state; The lower hatch cover (1500) is hoisted in to support the lower tilting block (100).

7. A ship, characterized in that, Includes the hatch flipping device as described in any one of claims 1-5.

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