Hatch cover hoisting structure

Abstract

The invention relates to the technical field of hoisting, and discloses a hatch cover hoisting structure. According to the scheme, a detachable hoisting arm is arranged on a hatch cover, the hatch cover is locked at a hoisting position through a locking piece, and the hoisting arm is mounted on the hatch cover at the hoisting position, so that the hatch cover hoisting structure can be used for hoisting materials, and the materials can enter and exit from a hatch; when the hatch cover is not used, the suspension arm is taken down from the hatch cover, the hatch cover covers the upper end of the hatch, and the deck area beside the hatch cannot be additionally occupied; compared with a traditional mode that a material crane is additionally arranged beside the hatch, the integrated design of the suspension arm and the hatch cover saves deck space, enables the deck area to be neater and smoother, does not hinder normal passing of personnel or goods on the deck beside the hatch in a non-working condition state, and improves the use efficiency of the deck.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, and in particular to a hatch cover hoisting structure. Background Art

[0002] There are various types of small hatch covers on the open deck of the ship, some of which have the function of small cargo entering and exiting the cabin. In order to hoist the cargo, a small material crane is usually arranged next to the hatch cover to assist the entry and exit of small cargo. The small material crane is arranged on the deck surface, and the time for hoisting cargo is relatively limited. Under non-working conditions, it affects the normal passage of the deck surface, causing safety hazards of accidental contact between pedestrians or cargo, and affecting the appearance. Summary of the invention

[0003] The object of the present invention is to provide a hatch cover hoisting structure for solving the problem in the prior art that the material hoist arranged beside the hatch cover occupies the deck area and affects the normal traffic on the deck surface when not in working condition.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a hatch cover hoisting structure, which has two intersecting X-directions, Y-directions and Z-directions, including:

[0005] A hatch cover, the hatch cover is arranged at one end of the hatch along the Y direction, the hatch cover is rotatably installed at the hatch along the Y direction, and the rotation track of the hatch cover has a cover closing position and a hoisting position;

[0006] A locking member, used for locking the hatch cover at the hoisting position;

[0007] a boom detachably mounted on the hatch cover;

[0008] The hatch cover is in the covering position for sealing the hatch, and the hatch cover is in the hoisting position for installing the boom and performing hoisting.

[0009] In some embodiments of the present application, the locking member includes a first locking portion connected to the lower end of the hatch cover and rotatable along the Y direction, and a second locking portion provided at the hatch and rotatable along the Y direction;

[0010] A clamping portion is provided at one end of the first locking portion away from the hatch cover, and the second locking portion has a locking position in a horizontal state. When the second locking portion is in the locking position, the clamping portion is clamped to the second locking portion to lock the hatch cover in the lifting position; the first locking portion and the second locking portion are driven to rotate in a predetermined direction so that the clamping portion is disengaged from the second locking portion, thereby releasing the lock of the hatch cover.

[0011] In some embodiments of the present application, a mounting groove is provided at the hatch, and the second locking portion includes a first plate located above the mounting groove and a second plate connected to the lower end surface of the first plate, and the second plate is rotatably installed in the mounting groove along the Y direction;

[0012] In the X direction, at least one end of the first plate protrudes from the installation groove, and the second plate is rotated so that the lower end surface of the first plate is pressed against the upper end surface of the installation groove, and the first plate is in the locked position.

[0013] In some embodiments of the present application, the clamping portion includes a groove extending through the thickness direction of the first locking portion, and the groove has an opening communicating with the outside at one end away from the hatch cover, so as to form a first protrusion on one side of the groove and a second protrusion on the other side of the groove;

[0014] The first plate is in the locking position, the first plate at least partially enters the groove through the opening and abuts against the second protrusion, and the first protrusion presses against the upper end surface of the first plate to lock the hatch cover at the lifting position; the first locking portion is rotated in a predetermined direction to drive the first plate to rotate synchronously, so that the first plate exits the groove and the hatch cover is unlocked.

[0015] In some embodiments of the present application, the hatch cover hoisting structure further includes an abutment column located on one side of the rotating portion of the hatch cover, wherein the abutment column is spaced apart from the hatch cover in the Y direction, and the abutment column is fixed to the upper end surface of the hatch cover via a connecting rod;

[0016] An elastic member that presses against the abutting column is provided at the hatch, driving the hatch cover to rotate along the Y direction so that the hatch cover is in the hoisting position, and the abutting column presses against the elastic member.

[0017] In some embodiments of the present application, the suspension arm includes a first arm and a second arm connected to one end of the first arm, and a suspension ring is provided on the second arm;

[0018] The upper end surface of the hatch cover is provided with a mounting tube that cooperates with the first arm, and the first arm is provided with a stop plate; when the hatch cover is in the lifting position, the first arm is moved along the axial direction of the mounting tube so that the first arm is inserted into the mounting tube, and the stop plate abuts against the end of the mounting tube so that the lifting arm is in the working position.

[0019] In some embodiments of the present application, a fixing ring and a clamping frame are provided on the upper end surface of the hatch cover; the first arm is moved axially along the fixing ring so that the first arm is inserted into the fixing ring, and the stop plate abuts against the end of the fixing ring; the first arm is rotated along the X-direction to drive the second arm to be clamped in the clamping frame, so that the boom is in the retracted position.

[0020] In some embodiments of the present application, the clamping frame includes two clamping plates spaced apart along the Y direction, the two clamping plates are fixedly mounted on the hatch cover, and the interval between the two clamping plates forms a clamping groove for clamping the second arm.

[0021] In some embodiments of the present application, there are two first locking portions, and the two first locking portions are arranged at two ends of the hatch cover along the X direction;

[0022] There are two second locking parts, and the two second locking parts are arranged on both sides of the hatch along the X direction.

[0023] In some embodiments of the present application, the boom further includes a reinforcing plate, one end of the reinforcing plate is connected to the first arm, and the other end of the reinforcing plate is connected to the second arm.

[0024] Compared with the prior art, a hatch cover lifting structure according to an embodiment of the present invention has the following beneficial effects: a detachable lifting arm is provided on the hatch cover, and the hatch cover is locked in the lifting position by a locking member. By installing the lifting arm on the hatch cover in the lifting position, the lifting arm can be used for lifting materials, thereby realizing the entry and exit of materials into and out of the hatch; when not in use, the lifting arm is removed from the hatch cover, and the hatch cover is closed on the upper end of the hatch, and no additional deck area next to the hatch is occupied; the integrated design of the lifting arm and the hatch cover in the present solution saves deck space, makes the deck area neater and smoother, and does not hinder the normal passage of personnel on the deck next to the hatch when not in use, thereby improving the utilization efficiency of the deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the hatch cover of the present invention in the closed state;

[0026] Figure 2 It is a schematic diagram of the hatch cover of the present invention in a hoisting position;

[0027] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 4 It is a schematic diagram of the crane arm of the present invention installed on the hatch cover in the hoisting position;

[0029] Figure 5 It is a schematic diagram of the overall structure of the boom of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0031] Figure 7 It is a schematic diagram of the matching relationship between the first locking part and the second locking part of the present invention;

[0032] Figure 8 A schematic diagram of the matching relationship between the first locking portion and the second locking portion of the present invention from another viewing angle;

[0033] Fig. 9 It is a schematic diagram of the clamping state of the first locking part and the second locking part of the present invention;

[0034] Fig.10 It is a schematic diagram of the first state of the first locking part and the second locking part of the present invention;

[0035] Fig.11 It is a schematic diagram of the second state of the first locking part and the second locking part of the present invention;

[0036] Fig.12 It is a side view schematic diagram of the hatch cover of the present invention in the closed position.

[0037] In the figure, 1, hatch cover; 11, mounting tube; 112, connecting plate; 12, fixing ring; 13, clamping frame; 131, clamping plate; 132, clamping groove; 133, bolt;

[0038] 2. Locking member; 21. First locking portion; 211. Snap-on plate; 212. Groove; 213. Opening; 214. First protrusion; 215. Second protrusion; 22. Second locking portion; 221. First plate; 222. Second plate;

[0039] 3. Suspension arm; 31. First arm; 311. Stop plate; 32. Second arm; 321. Suspension ring;

[0040] 4. Abutment column; 41. Connecting rod; 5. Elastic member; 6. Reinforcement plate; 7. Enclosure plate; 71. Mounting groove. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0043] like Figure 1-Figure 12 As shown, the embodiment of the present application proposes a hatch cover hoisting structure, which has two intersecting X-directions, Y-directions and Z-directions, including a hatch cover 1, a locking member 2, and a lifting arm 3, as shown in FIG. Figure 1 , Figure 2 As shown, it also includes a coaming 7, which is arranged around the edge of the hatch and is used to enclose the hatch inside; the hatch cover 1 is arranged at one end of the coaming 7 along the Y direction, and the hatch cover 1 is rotatably installed on the coaming 7 along the Y direction, and has a covering position and a lifting position on the rotation track of the hatch cover 1; the locking member 2 is used to lock the hatch cover 1 in the lifting position; the boom 3 is detachably installed on the hatch cover 1; when the hatch cover 1 is in the covering position, the hatch cover 1 covers the upper end of the coaming 7 to cover the hatch; when the hatch cover 1 is in the lifting position, it is used to install the boom 3 and lift materials.

[0044] In the specific implementation of this embodiment, when no material is hoisted, the hatch cover 1 is in the closed position for sealing the hatch (such as Figure 1 As shown in the figure, when it is necessary to perform a material lifting task, the hatch cover 1 is opened and moved from the cover closing position to the lifting position. After moving to the lifting position, the hatch cover 1 is locked and positioned by the locking member 2, so that the hatch cover 1 is in the following position: Figure 2In the hoisting position shown in the figure, the first arm 31 is installed on the hatch cover 1, and the second arm 32 is located above the hatch, and then the material is hoisted with the help of a winch; the specific process is: first, a certain length of wire rope is released by the winch, and the wire rope is hung on the boom 3 (with the boom 3 as the fulcrum), and a hook is provided at the free end of the wire rope (for hanging materials), and the winch is controlled to release or retract the wire rope, so as to realize the hoisting of materials from the deck into the cabin below the deck, or the hoisting of materials in the cabin below the deck to the deck surface; wait for After the lifting of the materials is completed, the lifting arm 3 is removed from the hatch cover 1, and then the locking member 2 for the hatch cover 1 is released, driving the hatch cover 1 to move from the lifting position to the covering position, so as to seal the hatch. In this embodiment, a detachable lifting arm 3 is used to cooperate with the hatch cover 1 with a lifting position, thereby avoiding the traditional need to arrange an additional material crane next to the hatch, which occupies a certain deck area and reduces the deck utilization efficiency. At the same time, the traffic efficiency on the deck is also improved, ensuring the safety of personnel or cargo on the deck next to the hatch when moving.

[0045] In some embodiments of the present application, Figure 4 , Figure 7 As shown, the locking member 2 includes a first locking portion 21 connected to the lower end of the hatch cover 1 along the Y direction and a second locking portion 22 installed on the outer side wall of the coaming 7 along the Y direction; the first locking portion 21 has a clamping portion at one end away from the hatch cover 1, as shown in FIG. Figure 8 As shown, the second locking portion 22 has a locking position in a horizontal state. When the hatch cover 1 is in the lifting position, the clamping portion is clamped on the second locking portion 22 in the locking position, so as to lock and position the hatch cover 1 in the lifting position, so that the hatch cover 1 is locked in the lifting position and cooperates with the lifting arm 3 to realize the lifting of materials; when the lifting of materials is completed, the first locking portion 21 and the second locking portion 22 are driven to rotate in a predetermined direction, so that the clamping portion is disengaged from the second locking portion 22, thereby releasing the lock of the hatch cover 1, so that the hatch cover 1 can be moved from the lifting position to the covering position (sealing the hatch).

[0046] In some embodiments of the present application, Figure 2 As shown, a mounting groove 71 is installed on the outer side wall of the enclosure 7 along the Y direction (fixed on the outer side wall of the enclosure 7 by screws or rivets), as shown in FIG. Figure 7 As shown, the mounting groove 71 is a box structure, and a groove cavity is provided in the box body, and the upper end of the groove cavity is open; the second locking portion 22 includes a first plate 221 located above the mounting groove 71, and a second plate 222 connected to the lower end surface of the first plate 221. The second plate 222 can be provided in two, and the two second plates 222 are arranged at intervals along the X direction. The two second plates 222 are rotatably installed in the groove cavity of the mounting groove 71 via a rotating shaft (the two second plates 222 are coaxially arranged), so that the two second plates 222 can rotate along the Y direction; as shown in FIG. Figure 7As shown, at least one end of the first plate 221 protrudes from the mounting groove 71 along the X direction (or both ends may protrude from the mounting groove 71), so that the second plate 222 can be rotated along the Y direction to drive the first plate 221 to rotate synchronously. When the first plate 221 is rotated to a horizontal position, the lower end surface of the first plate 221 can abut against the upper end surface of the mounting groove 71, so that the first plate 221 is in a horizontal locked position.

[0047] When it is necessary to lift materials, the hatch cover 1 is first rotated from the closed position to the lifting position. During the rotation of the hatch cover 1, the angle of the first locking portion 21 and the angle of the first plate 221 are synchronously adjusted so that when the hatch cover 1 is rotated to the lifting position and the first plate 221 is rotated to the horizontal locking position, the clamping portion can be clamped with the first plate 221 in the locking position, thereby locking and positioning the hatch cover 1 rotated to the lifting position.

[0048] In some embodiments of the present application, Figure 8 As shown, the clamping portion includes a groove 212 that is arranged along the thickness direction of the first locking portion 21 (the groove 212 is arranged at the end of the first locking portion 21 away from the hatch cover 1), as shown in FIG. Fig. 9 As shown, the groove 212 has an opening 213 connected to the outside at one end away from the hatch cover 1, so as to form a first protrusion 214 on one side of the groove 212 and a second protrusion 215 on the other side of the groove 212 (the first protrusion 214 and the second protrusion 215 are both arranged as arc structures); when the first plate 221 is in the locking position, the first plate 221 at least partially enters the groove 212 through the opening 213, and the first plate 221 extends into the groove 212 The part abuts against the second protrusion 215, the first protrusion 214 presses on the upper end surface of the first plate 221, and the hatch cover 1 is locked in the hoisting position through the cooperation of the first protrusion 214, the second protrusion 215 and the first plate 221; the first locking portion 21 is rotated in a predetermined direction to drive the first plate 221 to rotate synchronously, so that the first plate 221 exits the groove 212, and the hatch cover 1 is unlocked.

[0049] like Figure 9-11 As shown, it is a diagram of the process of the hatch cover 1 changing from the locked state to the unlocked state. Fig. 9 In the state shown in FIG. 2 , at this time, part of the first plate 221 enters into the groove 212 and the first plate 221 that enters into the groove 212 abuts against the second protrusion 215, and at the same time, the first protrusion 214 presses against the upper end surface of the first plate 221, so that the hatch cover 1 is locked in the hoisting position (such as FIG. 21 ) under the cooperation of the first locking portion 21 and the first plate 221. Figure 8 When the hatch cover 1 needs to be unlocked, Fig. 9The first locking portion 21 is rotated in the direction indicated by the middle arrow. During the rotation of the first locking portion 21, the first plate 221 is synchronously driven to rotate synchronously through the second protruding portion 215. Fig.10 As shown in FIG. 1 , the first locking portion 21 is in a state where the first plate 221 is synchronously driven to rotate by the second protruding portion 215 during the rotation process. The first locking portion 21 is continuously rotated so that the first plate 221 is completely withdrawn from the groove 212 (as shown in FIG. 1 ). Fig.11 Preferably, when the hatch cover 1 is unlocked, the hatch cover 1 can be firstly rotated to a certain angle in the direction away from the hatch, and then Fig. 9 When the first locking portion 21 is rotated in the direction of the arrow shown in FIG. 2 , it is helpful for the first plate 221 to be withdrawn from the groove 212 more easily; at this time, the first locking portion 21 no longer has a locking effect, and then the hatch cover 1 is driven to rotate toward the closed position (so that the first plate 221 is rotated to the horizontal locking position again), and finally it is in the state as shown in FIG. Fig.12 In the state shown in FIG, at this time, one end of the first locking portion 21 close to the hatch cover 1 is pressed against the upper end surface of the first plate 221 and the mounting groove 71, and the above process is the process of the hatch cover 1 changing from the hanging position to the cover closing position; when the hatch cover 1 changes from the cover closing position to the hanging position, the hatch cover 1 is first rotated from the cover closing position to the hanging position by a certain angle, and then the angles of the first locking portion 21 and the first plate 221 are adjusted respectively, so that the first plate 221 changes from the horizontal locking position to the upper end surface of the first plate 221. Figure 8 The hatch cover 1 is rotated counterclockwise for a certain angle so that the first plate 221 can enter the groove 212 provided on the first locking portion 21, and then the hatch cover 1 is continued to be rotated, and the positional relationship between the first locking portion 21 and the first plate 221 is synchronously adjusted, so that when the hatch cover 1 is rotated to the lifting position, the first protrusion 214 is pressed against the upper end surface of the first plate 221, and the first plate 221 extends into the groove 212 and abuts against the second protrusion 215, thereby realizing the locking of the hatch cover 1 rotated to the lifting position.

[0050] In some embodiments of the present application, Figure 1 , Figure 2 , Figure 4As shown, the hatch cover hoisting structure also includes an abutment column 4 located on one side of the rotating part of the hatch cover 1. In the Y direction, the abutment column 4 and the hatch cover 1 are spaced apart, and the abutment column 4 is fixed to the upper end surface of the hatch cover 1 via a connecting rod 41; an elastic member 5 (which can be an elastic rubber column) is fixedly installed on the outer side wall of the coaming 7 along the Y direction, which is pressed against the abutment column 4, and drives the hatch cover 1 to rotate along the Y direction, so that when the hatch cover 1 is in the hoisting position, the abutment column 4 is pressed against the elastic member 5; in the above embodiment, only the first locking portion 21 and the first plate 221 cooperate to lock and position the hatch cover 1, but it has a certain instability. When the boom 3 is installed on the hatch cover 1 and materials are hoisted, the hatch cover 1 always has a tendency to rotate toward the cover closing position due to the gravity of the materials, and then the first locking portion 21 and the first plate 221 are locked. 21, the hatch cover 1 is locked and positioned. At this time, the angle between the lifting position of the hatch cover 1 and the cover closing position must be less than 90°, so that the hatch cover 1 can be locked and positioned in the lifting position through the clamping cooperation of the first locking portion 21 and the first plate 221; obviously, if the lifting position of the hatch cover 1 cannot be at 90°, it will affect the lifting efficiency of the material to a certain extent, because the angle between the lifting position and the cover closing position is less than 90°, that is, the hatch cover 1 is tilted toward one side of the hatch, so that part of the space directly above the hatch is occupied by the tilted hatch cover 1, thereby affecting the lifting of the material; in this embodiment, by providing the abutment column 4 and the elastic member 5 fixedly installed on the outer wall of the coaming 7, the lifting position of the hatch cover 1 can be at 90° and the hatch cover 1 can be reliably locked and positioned, as follows:

[0051] like Figure 4 As shown, the hatch cover 1 is rotated from the cover closing position to the hoisting position. When the hatch cover 1 is rotated 90 degrees, the abutting column 4 just abuts against the elastic member 5 installed on the outer side wall of the coaming 7. At this time, the hatch cover 1 is in the hoisting position. With the cooperation of the abutting column 4, the elastic member 5, the first locking portion 21 and the first plate 221, the hatch cover 1 can be stably locked in the hoisting position. At this time, the hatch cover 1 is in a vertical state and will not occupy the space directly above the hatch, so as not to affect the hoisting of materials, thereby improving the safety of materials to a certain extent. The lifting efficiency is improved; the elastic member 5 in this embodiment has a certain extrusion deformation ability, so that when the hatch cover 1 is in the lifting position, the position of the hatch cover 1 can be fine-tuned by squeezing the elastic member 5 with elasticity, so as to better adjust the position relationship between the first locking portion 21 and the first plate 221, thereby realizing the locking and positioning of the hatch cover 1; at the same time, when it is necessary to release the lock of the hatch cover 1, the hatch cover 1 is driven to continue to rotate a certain angle in the direction away from the hatch (further squeezing the rubber member), and then along Fig. 9 When the first locking portion 21 is rotated in the direction indicated by the middle arrow, it helps to make the first plate 221 easily withdraw from the groove 212 (to unlock the hatch cover 1).

[0052] In some embodiments of the present application, Figure 1 As shown, the arm 3 includes a first arm 31 and a second arm 32 connected to one end of the first arm 31. The first arm 31 is detachably mounted on the upper end surface of the hatch cover 1, and a lifting ring 321 is fixedly mounted on the second arm 32. A mounting tube 11 (the inner diameter of the mounting tube 11 matches the outer diameter of the first arm 31) is provided on the upper end surface of the hatch cover 1. Figure 6 As shown, the mounting tube 11 is fixedly mounted on the upper end surface of the hatch cover 1 through two connecting plates 112 (the connecting plates 112 are welded and fixed to the mounting tube 11 and the hatch cover 1), and a stop plate 311 is provided on the first arm 31; when the hatch cover 1 is adjusted to the hoisting position, the first arm 31 is moved along the axial direction of the mounting tube 11, so that the first arm 31 is inserted into the mounting tube 11, so that the stop plate 311 abuts against the end of the mounting tube 11, thereby realizing the installation of the suspension arm 3 on the hatch cover 1 in the hoisting position, as shown in FIG. Figure 4 As shown, the boom 3 is in the working position at this time; the wire rope released by the winch is passed through the lifting ring 321, and the lifting of the material is realized with the lifting ring 321 as the fulcrum. After the lifting of the material is completed, the first arm 31 is moved along the axial direction of the installation cylinder 11, and the first arm 31 is withdrawn from the installation cylinder 11, so that the boom 3 is removed from the hatch cover 1, and the hatch cover 1 is restored to the closed position.

[0053] In some embodiments of the present application, in order to facilitate the storage of the boom 3 and to facilitate the taking out when it is needed to be lifted, a structure for storing the boom 3 is provided in the present embodiment, which is specifically as follows: Figure 2 As shown, a fixing ring 12 and a clamping frame 13 are provided on the upper end surface of the hatch cover 1; the first arm 31 is moved along the axial direction of the fixing ring 12, so that the first arm 31 is inserted into the fixing ring 12, so that the stop plate 311 abuts against the end of the fixing ring 12; then the first arm 31 is rotated along the X direction, driving the second arm 32 to be clamped in the clamping frame 13, so that the boom 3 is in the retracted position (as shown in FIG. Figure 1 As shown in the figure, the clamping frame 13 realizes the positioning of the boom 3 along the Y direction, and the fixing ring 12 realizes the positioning of the boom 3 along the X direction, so that when there is no need to lift materials, the boom 3 can be directly fixed on the upper surface of the hatch cover 1. At this time, the boom 3 does not hinder the normal use function of the hatch cover 1. At the same time, when materials need to be lifted, the boom 3 can be taken out in time and quickly, and the boom 3 can be installed at the working position, which saves time and improves work efficiency.

[0054] In some embodiments of the present application, Figure 3As shown, the clamping frame 13 includes two clamping plates 131 spaced apart along the Y direction, the two clamping plates 131 are fixedly mounted on the hatch cover 1, and the interval between the two clamping plates 131 forms a clamping groove 132 for clamping the second arm 32. When the first arm 31 is inserted into the fixing ring 12, the first arm 31 is driven to rotate along the X direction so that the second arm 32 enters the clamping groove 132 between the two clamping plates 131, and the boom 3 is fixed to the upper end surface of the hatch cover 1 through the fixing ring 12 and the clamping groove 132; in order to further improve the fixing effect of the boom 3, a bolt 133 (for blocking the second arm 32) is threadedly installed between the two clamping plates 131 to prevent the second arm 32 from withdrawing from the clamping groove 132.

[0055] In some embodiments of the present application, there are two first locking portions 21, and the two first locking portions 21 are arranged at both ends of the hatch cover 1 along the X-direction; there are two second locking portions 22, and the two second locking portions 22 are arranged on the two outer side walls of the enclosure 7 along the X-direction; through two sets of matching first locking portions 21 and second locking portions 22, more stable locking and positioning of the hatch cover 1 can be achieved.

[0056] In some embodiments of the present application, Figure 4 As shown, the boom 3 further includes a reinforcing plate 6 , one end of the reinforcing plate 6 is connected to the first arm 31 , and the other end of the reinforcing plate 6 is connected to the second arm 32 , so as to improve the structural strength of the boom 3 .

[0057] The working process of the present invention is as follows: when the lifting of materials is not performed, the hatch cover 1 is in the closed position and the hatch is sealed; when the lifting of materials is required, the hatch cover 1 is rotated from the closed position to the lifting position, and the hatch cover 1 is locked and positioned in the lifting position by the first locking part 21 and the second locking part 22; then the boom 3 in the retracted position is taken out from the hatch cover 1, and installed in the working position, and then the lifting of materials can be achieved by cooperating with the winch; when the lifting of materials is completed, the boom 3 in the working position is first removed from the hatch cover 1, and then the lock of the hatch cover 1 is released, and the hatch cover 1 is rotated to the closed position again, and the boom 3 is fixed on the hatch cover 1 and is in the retracted position.

[0058] In summary, an embodiment of the present invention provides a hatch cover lifting structure. In this solution, a detachable lifting arm 3 is provided on the hatch cover 1, and the hatch cover 1 is locked in the lifting position by a locking member 2. By installing the lifting arm 3 on the hatch cover 1 in the lifting position, it can be used for lifting materials, thereby realizing the entry and exit of materials into and out of the hatch; when not in use, the lifting arm 3 is removed from the hatch cover 1, and the hatch cover 1 is closed on the upper end of the hatch, and will not occupy additional deck area next to the hatch; compared with the traditional method of additionally providing a material crane next to the hatch, the integrated design of the lifting arm 3 and the hatch cover 1 in this solution saves deck space, makes the deck area neater and smoother, and will not hinder the normal passage of personnel or cargo on the deck next to the hatch when not in working condition, thereby improving the utilization efficiency of the deck.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A hatch cover hoisting structure having two intersecting X, Y and Z directions, characterized in that: include: A hatch cover (1), the hatch cover (1) being arranged at one end of the hatch along the Y direction, the hatch cover (1) being rotatably mounted at the hatch along the Y direction, and the hatch cover (1) having a cover closing position and a hoisting position on a rotation track; A locking member (2) for locking the hatch cover (1) at the lifting position; A suspension arm (3) detachably mounted on the hatch cover (1); The hatch cover (1) is in the covering position for sealing the hatch, and the hatch cover (1) is in the lifting position for installing the lifting arm (3) and performing lifting.

2. The hatch cover hoisting structure according to claim 1, characterized in that: The locking member (2) comprises a first locking portion (21) connected to the lower end of the hatch cover (1) for rotation along the Y direction and a second locking portion (22) arranged at the hatch for rotation along the Y direction; A clamping portion is provided at one end of the first locking portion (21) away from the hatch cover (1); the second locking portion (22) has a locking position in a horizontal state; when the second locking portion (22) is in the locking position, the clamping portion is clamped on the second locking portion (22) to lock the hatch cover (1) at the lifting position; the first locking portion (21) and the second locking portion (22) are driven to rotate in a predetermined direction so that the clamping portion is disengaged from the second locking portion (22) to release the lock of the hatch cover (1).

3. The hatch cover hoisting structure according to claim 2, characterized in that: The hatch is provided with a mounting groove (71), the second locking portion (22) comprises a first plate (221) located above the mounting groove (71), and a second plate (222) connected to the lower end surface of the first plate (221), and the second plate (222) is rotatably mounted in the mounting groove (71) along the Y direction; In the X direction, at least one end of the first plate (221) protrudes from the mounting groove (71), and the second plate (222) is rotated so that the lower end surface of the first plate (221) is pressed against the upper end surface of the mounting groove (71), and the first plate (221) is in the locked position.

4. The hatch cover hoisting structure according to claim 3, characterized in that: The clamping portion comprises a groove (212) penetrating along the thickness direction of the first locking portion (21), and the groove (212) has an opening (213) communicating with the outside at one end away from the hatch cover (1), so as to form a first protruding portion (214) on one side of the groove (212) and a second protruding portion (215) on the other side of the groove (212); The first plate (221) is in the locking position, the first plate (221) at least partially enters the groove (212) through the opening (213) and abuts against the second protrusion (215), and the first protrusion (214) presses against the upper end surface of the first plate (221) so that the hatch cover (1) is locked at the lifting position; the first locking portion (21) is rotated in a predetermined direction to drive the first plate (221) to rotate synchronously, so that the first plate (221) exits the groove (212), thereby unlocking the hatch cover (1).

5. The hatch cover hoisting structure according to claim 1, characterized in that: The hatch cover hoisting structure further comprises an abutment column (4) located on one side of the rotating part of the hatch cover (1); in the Y direction, the abutment column (4) is spaced apart from the hatch cover (1); the abutment column (4) is fixed to the upper end surface of the hatch cover (1) via a connecting rod (41); The hatch is provided with an elastic member (5) that presses against the abutment column (4), driving the hatch cover (1) to rotate along the Y direction so that the hatch cover (1) is in the hoisting position, and the abutment column (4) presses against the elastic member (5).

6. The hatch cover hoisting structure according to claim 1, characterized in that: The suspension arm (3) comprises a first arm (31) and a second arm (32) connected to one end of the first arm (31), and a suspension ring (321) is provided on the second arm (32); The upper end surface of the hatch cover (1) is provided with a mounting tube (11) cooperating with the first arm (31), and the first arm (31) is provided with a stop plate (311); the hatch cover (1) is in the lifting position, and the first arm (31) is moved axially along the mounting tube (11) so that the first arm (31) is inserted into the mounting tube (11), and the stop plate (311) abuts against the end of the mounting tube (11), so that the lifting arm (3) is in the working position.

7. The hatch cover hoisting structure according to claim 6, characterized in that: The upper end surface of the hatch cover (1) is provided with a fixing ring (12) and a clamping frame (13); the first arm (31) is moved along the axial direction of the fixing ring (12) so that the first arm (31) is inserted into the fixing ring (12), and the stop plate (311) abuts against the end of the fixing ring (12); the first arm (31) is rotated along the X direction so that the second arm (32) is clamped in the clamping frame (13), so that the boom (3) is in the retracted position.

8. The hatch cover hoisting structure according to claim 7, characterized in that: The clamping frame (13) comprises two clamping plates (131) spaced apart along the Y direction, the two clamping plates (131) are fixedly mounted on the hatch cover (1), and the space between the two clamping plates (131) forms a clamping groove (132) for clamping the second arm (32).

9. The hatch cover hoisting structure according to claim 2, characterized in that: There are two first locking parts (21), and the two first locking parts (21) are arranged at two ends of the hatch cover (1) along the X direction; There are two second locking parts (22), and the two second locking parts (22) are arranged on both sides of the hatch along the X direction.

10. The hatch cover hoisting structure according to claim 6, characterized in that: The boom (3) further comprises a reinforcing plate (6), one end of the reinforcing plate (6) being connected to the first arm (31), and the other end of the reinforcing plate (6) being connected to the second arm (32).

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