A hatch cover hoisting structure

Abstract

The application relates to a hoisting technology field and discloses a hatch cover hoisting structure. The hatch cover hoisting structure is characterized in that a detachable hoisting arm is arranged on the hatch cover, the hatch cover is locked in a hoisting position through a locking piece, the hoisting arm is installed on the hatch cover in the hoisting position, the hoisting arm can be used for hoisting materials, and the materials can enter or exit the hatch cover. When the hoisting arm is not used, the hoisting arm is removed from the hatch cover, and the hatch cover is covered on the upper end of the hatch, so that the deck area beside the hatch is not occupied additionally. The integrated design of the hoisting arm and the hatch cover saves the deck space compared with the traditional mode of additionally arranging a material hoist beside the hatch, the deck area is more neat and smooth, the normal passing of personnel or goods on the deck beside the hatch is not affected in a non-working condition, and the use efficiency of the deck is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the hoisting technology field, in particular to a hatch cover hoisting structure. BACKGROUND

[0002] Various types of small hatch covers are arranged on the open deck of a ship, some of which have the function of loading and unloading small cargos. In order to hoist the cargos, a small material hoist is usually arranged beside the hatch cover to assist the loading and unloading of small cargos. The small material hoist is arranged on the deck surface, and the time for hoisting cargos is limited. In non-working conditions, it affects the normal passage of the deck surface, causing safety hazards of accidental contact of passing pedestrians or cargos, and affecting the appearance. SUMMARY

[0003] The present application relates to the hoisting technology field, in particular to a hatch cover hoisting structure.

[0004] In order to achieve the above-mentioned purpose, the present application provides a hatch cover hoisting structure with X, Y and Z directions intersecting with each other, comprising:

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

[0006] A locking member is used to lock the hatch cover in the hoisting position.

[0007] A hoist arm is detachably installed on the hatch cover.

[0008] The hatch cover is in the covering position to cover the hatch, and the hatch cover is in the hoisting position to install the hoist arm and hoist.

[0009] In some embodiments of the present application, the locking member includes a first locking part rotatably connected to the lower end of the hatch cover along the Y direction, and a second locking part rotatably arranged at the hatch along the Y direction.

[0010] The first locking part is provided with a clamping part away from one end of the hatch cover, and the second locking part has a locking position in a horizontal state. When the second locking part is in the locking position, the clamping part is clamped on the second locking part to lock the hatch cover in the hoisting position. Driving the first locking part and the second locking part to rotate in a predetermined direction makes the clamping part and the second locking part disengage, and the hatch cover is unlocked.

[0011] In some embodiments of the present application, the hatch opening is provided with a mounting groove, the second locking part comprises 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 mounted in the mounting groove along the Y direction;

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

[0013] In some embodiments of the present application, the clamping part comprises a groove penetrating through the first locking part along the thickness direction of the first locking part, the groove is provided with an opening communicating with the outside at one end away from the hatch cover, so as to form a first protruding part at one side of the groove and a second protruding part at the other side of the groove;

[0014] When the first plate is in the locked position, the first plate enters the groove at least partially through the opening and abuts against the second protruding part, and the first protruding part abuts against the upper end surface of the first plate, so as to lock the hatch cover in the lifting position; the first locking part 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 lifting structure further comprises an abutting column located at one side of the rotating part of the hatch cover, and in the Y direction, the abutting column is spaced apart from the hatch cover, and the abutting column is fixed to the upper end surface of the hatch cover through a connecting rod;

[0016] The hatch opening is provided with an elastic member abutting against the abutting column, the hatch cover is driven to rotate along the Y direction, so that the hatch cover is in the lifting position, and the abutting column abuts against the elastic member.

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

[0018] The upper end surface of the hatch cover is provided with a mounting cylinder matched 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 cylinder so as to be inserted into the mounting cylinder, and the stop plate abuts against the end portion of the mounting cylinder, so that the lifting arm is in the working position.

[0019] In some embodiments of the present application, the upper end surface of the hatch cover is provided with a fixing ring and a clamping frame; the first arm is moved along the axial direction of the fixing ring, so that the first arm is arranged in the fixing ring, and the stop plate abuts against the end of the fixing ring; the first arm is rotated along the X direction, so that the second arm is clamped in the clamping frame, and the lifting arm is in the stowed position.

[0020] In some embodiments of the present application, the clamping frame comprises two clamping plates arranged along the Y direction; the two clamping plates are fixedly installed 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, the first locking part has two first locking parts arranged at the two ends of the hatch cover along the X direction.

[0022] The second locking part has two second locking parts arranged at the two sides of the hatch cover along the X direction.

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

[0024] Compared with the prior art, the hatch cover lifting structure of the embodiment of the present application has the following beneficial effects: in the present scheme, the detachable lifting arm is arranged on the hatch cover, the hatch cover is locked in the lifting position by the locking part, the lifting arm is installed on the hatch cover in the lifting position, and the lifting arm is used for lifting the material, so that the material can enter or exit 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, so that the deck area beside the hatch is not occupied additionally; in the present scheme, the lifting arm and the hatch cover are integrated, compared with the traditional method of additionally arranging the material lifting device beside the hatch, the deck space is saved, the deck area is more tidy and smooth, in the non-working condition, the normal passing of the personnel on the deck beside the hatch is not affected, and the use efficiency of the deck is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic view of the hatch cover in the closed position according to the present application;

[0026] Figure 2 It is a schematic view of the hatch cover in the lifting position according to the present application;

[0027] Figure 3 It is a schematic view of the hatch cover in the lifting position according to the present application; Figure 2 It is an enlarged schematic view of the structure at A in the present application;

[0028] Figure 4 It is a schematic view of the lifting arm installed on the hatch cover in the lifting position according to the present application;

[0029] Figure 5 Fig. 1 is a schematic diagram of the overall structure of the invention;

[0030] Figure 6 Fig. 2 is a schematic diagram of the structure of the invention; Figure 5 Fig. 3 is a schematic diagram of the structure of the invention;

[0031] Figure 7 Fig. 4 is a schematic diagram of the cooperation between the first locking part and the second locking part of the invention;

[0032] Figure 8 Fig. 5 is a schematic diagram of the cooperation between the first locking part and the second locking part of the invention from another perspective;

[0033] Figure 9 Fig. 6 is a schematic diagram of the clamping state of the first locking part and the second locking part of the invention;

[0034] Figure 10 Fig. 7 is a schematic diagram of the first state of the first locking part and the second locking part of the invention;

[0035] Figure 11 Fig. 8 is a schematic diagram of the second state of the first locking part and the second locking part of the invention;

[0036] Figure 12 Fig. 9 is a schematic diagram of the hatch cover of the invention in the closed position from the side.

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

[0038] 2, locking part; 21, first locking part; 211, clamping plate; 212, groove; 213, opening; 214, first protruding part; 215, second protruding part; 22, second locking part; 221, first plate; 222, second plate;

[0039] 3, boom; 31, first arm; 311, stop plate; 32, second arm; 321, lifting ring;

[0040] 4, abutting column; 41, connecting rod; 5, elastic part; 6, reinforcing plate; 7, coaming; 71, mounting groove. DETAILED DESCRIPTION

[0041] The specific embodiments of the invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the invention, but are not used to limit the scope of the invention.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be understood that the terms "first", "second" and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0043] As shown in Figures 1-12 , the present application embodiment proposes a hatch cover hoisting structure with X, Y and Z directions intersecting with each other, comprising a hatch cover 1, a locking member 2, a hoist arm 3, as shown in Figure 1 、 Figure 2 , further comprising a coaming 7, the coaming 7 is arranged around the edge of the hatch, for enclosing the hatch inside; the hatch cover 1 is arranged at one end of the coaming 7 along the Y direction, the hatch cover 1 is rotatably installed on the coaming 7 along the Y direction, and has a covering position and a hoisting position on the rotation track of the hatch cover 1; the locking member 2 is used to lock the hatch cover 1 at the hoisting position; the hoist arm 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, for sealing the hatch; when the hatch cover 1 is in the hoisting position, the hoist arm 3 is installed and the hoisting of materials is carried out.

[0044] In the specific implementation of the present embodiment, when the hoisting of materials is not performed, the hatch cover 1 is in the covering position for sealing the hatch (as shown in Figure 1 ), when the hoisting of materials needs to be performed, the hatch cover 1 is opened and moved from the covering position to the hoisting position, and after moving to the hoisting position, the hatch cover 1 is locked and positioned by the locking member 2, so that the hatch cover 1 is in the hoisting position as shown in Figure 2The first arm 31 is installed on the hatch cover 1, and the second arm 32 is in the upper position of the hatch cover, and then the hoisting of the material is completed by means of the winch; the specific process is as follows: first, a certain length of steel wire rope is released by the winch, and the steel wire rope is hung on the hoisting arm 3 (taking the hoisting arm 3 as a fulcrum), and the free end of the steel wire rope is provided with a hook (for hanging the material), the winch is controlled to release or retract the steel wire rope, so as to realize the hoisting of the material from the deck into the cabin below the deck, or the hoisting of the material in the cabin below the deck to the deck surface; after the hoisting of the material is completed, the hoisting arm 3 is detached from the hatch cover 1, and then the locking of the locking member 2 to the hatch cover 1 is released, the hatch cover 1 is driven to move from the hoisting position to the covering position, and the hatch cover is used for covering the hatch; in the embodiment, the detachable hoisting arm 3 cooperates with the hatch cover 1 having the hoisting position to work together, which avoids the traditional need to additionally arrange the material hoist beside the hatch, occupies a certain deck area, and reduces the utilization efficiency of the deck, and also improves the passing efficiency on the deck, and ensures the safety of personnel or goods moving beside the hatch.

[0045] In some embodiments of the present application, as shown in Figure 4 , Figure 7 The locking member 2 comprises a first locking part 21 rotatably connected to the lower end of the hatch cover 1 along the Y direction and a second locking part 22 rotatably installed on the outer side wall of the coaming 7 along the Y direction; the end of the first locking part 21 away from the hatch cover 1 is provided with a clamping part, as shown in Figure 8 The second locking part 22 has a locking position in a horizontal state, when the hatch cover 1 is in the hoisting position, the clamping part is clamped to the second locking part 22 in the locking position, which is used for locking and positioning the hatch cover 1 in the hoisting position, so that the hatch cover 1 is locked in the hoisting position, and the hoisting of the material is realized in cooperation with the hoisting arm 3; after the hoisting of the material is completed, the first locking part 21 and the second locking part 22 are driven to rotate in a predetermined direction, so that the clamping part is separated from the second locking part 22, thereby releasing the locking of the hatch cover 1, so that the hatch cover 1 can move from the hoisting position to the covering position (covering the hatch).

[0046] In some embodiments of the present application, as shown in Figure 2 The coaming 7 is provided with a mounting groove 71 on the outer side wall along the Y direction (which is fixedly installed on the outer side wall of the coaming 7 by screws or rivets), as shown in Figure 7 The mounting groove 71 has a box structure, and the box has a groove cavity with an open upper end; the second locking part 22 comprises a first plate 221 above the mounting groove 71, a second plate 222 connected to the lower end face of the first plate 221, and the second plate 222 can be provided as two, which are spaced apart along the X direction, and the two second plates 222 are rotatably installed in the groove cavity of the mounting groove 71 through 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 Figure 7As shown, the first plate 221 protrudes at least one end of the installation groove 71 along the X direction (both ends can also protrude from the installation groove 71), so that the second plate 222 is rotated along the Y direction, and the first plate 221 is synchronously rotated, when the first plate 221 is rotated to the horizontal position, the lower end surface of the first plate 221 can abut against the upper end surface of the installation groove 71, so that the first plate 221 is in the horizontal locking position.

[0047] When the material needs to be hoisted, first, the hatch cover 1 is rotated from the closing position to the hoisting position, and in the process of rotating the hatch cover 1, the angle of the first locking part 21 and the angle of the first plate 221 are adjusted synchronously, so that when the hatch cover 1 is rotated to the hoisting position and the first plate 221 is rotated to the horizontal locking position, the clamping part can be clamped with the first plate 221 in the locking position, thereby achieving the locking and positioning of the hatch cover 1 rotated to the hoisting position.

[0048] In some embodiments of the present application, as shown in Figure 8 As shown, the clamping part includes a groove 212 penetrating along the thickness direction of the first locking part 21 (the groove 212 is arranged at the end of the first locking part 21 away from the hatch cover 1), as shown in Figure 9 As shown, the end of the groove 212 away from the hatch cover 1 has an opening 213 communicating with the outside, so as to form a first protruding part 214 on one side of the groove 212 and a second protruding part 215 on the other side of the groove 212 (the first protruding part 214 and the second protruding part 215 are both arranged in an arc structure); 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 part of the first plate 221 extending into the groove 212 abuts against the second protruding part 215, and the first protruding part 214 abuts against the upper end surface of the first plate 221, and through the cooperation of the first protruding part 214, the second protruding part 215 and the first plate 221, the hatch cover 1 is locked in the hoisting position; rotating the first locking part 21 along a predetermined direction to synchronously rotate the first plate 221, so that the first plate 221 exits the groove 212, and the hatch cover 1 is unlocked.

[0049] As shown in Figures 9-11 As shown, the process of changing the hatch cover 1 from the locking state to the unlocking state, when in the state shown in Figure 9 At this time, part of the first plate 221 enters the groove 212, and the part of the first plate 221 entering the groove 212 abuts against the second protruding part 215, and the first protruding part 214 abuts against the upper end surface of the first plate 221, so that the hatch cover 1 is locked in the hoisting position (as shown in Figure 8 When the locking of the hatch cover 1 needs to be released, the first locking part 21 is rotated along Figure 9Rotate the first locking part 21 in the direction indicated by the middle arrow. During the rotation of the first locking part 21, the second protrusion 215 synchronously drives the first plate 221 to rotate synchronously. Figure 10 As shown, the first locking part 21 rotates while the second protrusion 215 synchronously drives the first plate 221 to rotate. Continuing to rotate the first locking part 21, the first plate 221 is completely disengaged from the groove 212 (as shown). Figure 11 (As shown); Preferably, when releasing the lock on hatch cover 1, hatch cover 1 can first be rotated a certain angle away from the hatch, and then... Figure 9 When the first locking part 21 is rotated in the direction of the arrow shown, it helps the first plate 221 to exit more easily from the groove 212; at this time, the first locking part 21 no longer has a locking effect, and then drives the hatch cover 1 to rotate toward the closed position (so that the first plate 221 rotates back to the horizontal locking position), finally reaching the position as shown. Figure 12 In the state shown, the end of the first locking part 21 near the hatch cover 1 is pressed against the upper surface of the first plate 221 and the mounting groove 71. The above process is the process of the hatch cover 1 changing from the lifting position to the closed position. When the hatch cover 1 changes from the closed position to the lifting position, the hatch cover 1 is first rotated from the closed position to the lifting position by a certain angle. Then, the angles of the first locking part 21 and the first plate 221 are adjusted respectively, so that the first plate 221 changes from the horizontal locking position to the vertical position. Figure 8 The hatch cover 1 is rotated counterclockwise by a certain angle so that the first plate 221 can enter the groove 212 provided on the first locking part 21. Then, the hatch cover 1 is rotated and the positional relationship between the first locking part 21 and the first plate 221 is adjusted simultaneously so that when the hatch cover 1 is rotated to the hoisting position, the first protrusion 214 presses against the upper end surface of the first plate 221, and the part of the first plate 221 that extends into the groove 212 abuts against the second protrusion 215, thereby locking the hatch cover 1 that has been rotated to the hoisting position.

[0050] In some embodiments of this application, such as Figure 1 , Figure 2 , Figure 4As shown, the hatch cover hoisting structure also includes an abutment post 4 located on one side of the rotating part of the hatch cover 1. In the Y direction, the abutment post 4 and the hatch cover 1 are spaced apart, and the abutment post 4 is fixed to the upper end face of the hatch cover 1 via a connecting rod 41. An elastic element 5 (which can be an elastic rubber post) is fixedly installed on the outer side wall of the cofferdam 7 along the Y direction to press against the abutment post 4, driving the hatch cover 1 to rotate in the Y direction, so that when the hatch cover 1 is in the hoisting position, the abutment post 4 presses against the elastic element 5. In the above embodiment, although the hatch cover 1 can be locked and positioned by the cooperation of the first locking part 21 and the first plate 221, it has a certain degree of instability. When the boom 3 is installed on the hatch cover 1 and materials are hoisted, the hatch cover 1 always tends to rotate towards the closed position due to the gravity of the materials, and thus the first locking part 21 and the first plate 221... With the snap-fit ​​of 21, the hatch cover 1 is locked and positioned. At this time, the angle between the lifting position and the closed position of the hatch cover 1 must be less than 90° so that the hatch cover 1 can be locked and positioned in the lifting position through the snap-fit ​​of the first locking part 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 closed position is less than 90°, that is, the hatch cover 1 is tilted towards the hatch side, so that part of the space directly above the hatch is occupied by the tilted hatch cover 1, thus affecting the lifting of the material. In this embodiment, by setting the abutment post 4 and the elastic element 5 fixedly installed on the outer wall of the cofferdam 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 closed position to the lifting position. When the hatch cover 1 is rotated 90°, the abutment post 4 abuts against the elastic element 5 installed on the outer wall of the bulkhead 7. At this time, the hatch cover 1 is in the lifting position. With the coordinated cooperation of the abutment post 4, the elastic element 5, the first locking part 21, and the first plate 221, the hatch cover 1 can be stably locked in the lifting position. At this time, the hatch cover 1 is in a vertical state and will not encroach on the space directly above the hatch, thus not affecting the lifting of materials and improving the handling of materials to a certain extent. The lifting efficiency is improved. In this embodiment, the elastic element 5 has a certain compressive deformation capability, allowing the hatch cover 1 to be finely adjusted in position when it is in the lifting position by compressing the elastic element 5. This facilitates better adjustment of the positional relationship between the first locking part 21 and the first plate 221, thereby achieving locking and positioning of the hatch cover 1. Simultaneously, when it is necessary to release the lock on the hatch cover 1, it drives the hatch cover 1 to continue rotating a certain angle away from the hatch (further compressing the rubber element), subsequently along... Figure 9 When the first locking part 21 is rotated in the direction indicated by the middle arrow, it helps the first plate 221 to easily exit from the groove 212 (in order to unlock the hatch cover 1).

[0052] As shown in some embodiments of the present application, Figure 1 The hanger arm 3 comprises 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 the second arm 32 is fixedly mounted with a lifting ring 321; the upper end surface of the hatch cover 1 is provided with a mounting cylinder 11 matched with the first arm 31 (the inner diameter of the mounting cylinder 11 matches the outer diameter of the first arm 31), as shown in Figure 6 The mounting cylinder 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 between the mounting cylinder 11 and the hatch cover 1), and the first arm 31 is provided with a stop plate 311; when the hatch cover 1 is adjusted to the hoisting position, the first arm 31 is moved along the axial direction of the mounting cylinder 11, the first arm 31 is inserted into the mounting cylinder 11, so that the stop plate 311 abuts against the end of the mounting cylinder 11, thereby realizing the installation of the hanger arm 3 on the hatch cover 1 in the hoisting position, as shown in Figure 4 The hanger arm 3 is in the working position at this time; the steel wire rope released by the winch passes through the lifting ring 321, and the lifting ring 321 is used as a fulcrum to realize the hoisting of the material. After the hoisting of the material is completed, the first arm 31 is moved along the axial direction of the mounting cylinder 11, and the first arm 31 is withdrawn from the mounting cylinder 11, thereby realizing the dismounting of the hanger arm 3 from the hatch cover 1, and the hatch cover 1 returns to the closed position.

[0053] In some embodiments of the present application, in order to facilitate the storage of the hanger arm 3 and the taking when hoisting is needed, a structure for storing the hanger arm 3 is provided, which is as follows: as shown in Figure 2 The upper end surface of the hatch cover 1 is provided with a fixed ring 12 and a clamping frame 13; the first arm 31 is moved along the axial direction of the fixed ring 12, and the first arm 31 is inserted into the fixed ring 12, so that the stop plate 311 abuts against the end of the fixed ring 12; then the first arm 31 is rotated along the X direction, and the second arm 32 is clamped in the clamping frame 13, so that the hanger arm 3 is in the stowed position (as shown in Figure 1 The clamping frame 13 realizes the positioning of the hanger arm 3 along the Y direction, and the fixed ring 12 realizes the positioning of the hanger arm 3 along the X direction, thereby realizing the direct fixing of the hanger arm 3 on the upper surface of the hatch cover 1 when the hoisting of the material is not needed, and the hanger arm 3 does not hinder the normal use function of the hatch cover 1 at this time. At the same time, when the hoisting of the material is needed, the hanger arm 3 can be taken in time and quickly, and the hanger arm 3 can be installed in the working position, thereby saving time and improving work efficiency.

[0054] As shown 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 installed 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. After the first arm 31 is arranged in the fixed 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 fixed ring 12 and the clamping groove 132 are used to fix the lifting arm 3 on the upper end surface of the hatch cover 1; in order to further improve the fixing effect of the lifting arm 3, a bolt 133 (used to block the second arm 32) is threadedly installed between the two clamping plates 131, so that the second arm 32 is prevented from exiting from the clamping groove 132.

[0055] In some embodiments of the present application, the first locking part 21 has two, and the two first locking parts 21 are arranged at the two ends of the hatch cover 1 along the X direction; the second locking part 22 has two, and the two second locking parts 22 are arranged on the two outer side walls of the coaming 7 along the X direction; through the cooperation of the two groups of first locking parts 21 and second locking parts 22, the hatch cover 1 can be more stably locked and positioned.

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

[0057] The working process of the present application is as follows: when the lifting of the material is not performed, the hatch cover 1 is in the closed position and realizes the capping of the hatch; when the lifting of the material is needed, the hatch cover 1 is rotated from the closed position to the lifting position, and the first locking part 21 and the second locking part 22 are used to lock and position the hatch cover 1 in the lifting position; then the lifting arm 3 in the folding position is taken out from the hatch cover 1 and is installed in the working position, and then the lifting of the material can be realized through cooperation with the winch; after the lifting of the material is completed, the lifting arm 3 in the working position is first taken off from the hatch cover 1, then the locking of the hatch cover 1 is released, and the hatch cover 1 is rotated to the closed position again, the lifting arm 3 is fixed on the hatch cover 1 and is in the folding position.

[0058] In summary, the embodiment of the present application provides a hatch cover hoisting structure, the scheme is characterized in that: a detachable lifting arm 3 is arranged on the hatch cover 1, and the hatch cover 1 is locked in the hoisting position by the locking piece 2, the lifting arm 3 is installed on the hatch cover 1 in the hoisting position, and the lifting arm 3 is used for hoisting the material, so that the material can enter and exit the hatch; when not in use, the lifting arm 3 is removed from the hatch cover 1, and the hatch cover 1 is covered on the upper end of the hatch, and the deck area beside the hatch is not additionally occupied; in the scheme, the integrated design of the lifting arm 3 and the hatch cover 1, compared with the traditional way of additionally arranging the material lifting device beside the hatch, saves the deck space, makes the deck area more neat and smooth, and does not hinder the normal passing of personnel or goods on the deck beside the hatch in the non-working condition, and improves the use efficiency of the deck.

[0059] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A hatch cover hoisting structure having X, Y and Z directions intersecting two by two, characterized in that, The utility model provides a hatch cover locking device, comprising: a hatch cover (1) arranged at one end of a hatch along the Y direction, the hatch cover (1) being rotatably arranged at the hatch along the Y direction, the hatch cover (1) having a cover closing position and a lifting position on the rotation track thereof; a locking member (2) for locking the hatch cover (1) at the lifting position; a lifting arm (3) detachably arranged at the hatch cover (1); the hatch cover (1) being at the cover closing position for closing the hatch, and the hatch cover (1) being at the lifting position for arranging the lifting arm (3) and lifting; the locking member (2) comprising a first locking part (21) rotatably connected to the lower end of the hatch cover (1) along the Y direction and a second locking part (22) rotatably arranged at the hatch along the Y direction; the first locking part (21) being provided with a clamping part away from one end of the hatch cover (1), the second locking part (22) having a locking position in a horizontal state, the second locking part (22) being at the locking position to make the clamping part clamped to the second locking part (22) and lock the hatch cover (1) at the lifting position, and the first locking part (21) and the second locking part (22) being driven to rotate in a predetermined direction to make the clamping part disengage from the second locking part (22) and release the hatch cover (1) from being locked; the hatch being provided with a mounting groove (71), the second locking part (22) comprising a first plate (221) above the mounting groove (71) and a second plate (222) connected to the lower end face of the first plate (221), the second plate (222) being rotatably arranged 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), the second plate (222) is rotated to make the lower end face of the first plate (221) abut against the upper end face of the mounting groove (71), and the first plate (221) is at the locking position; the clamping part comprising a groove (212) penetratingly arranged along the thickness direction of the first locking part (21), the groove (212) being provided with an opening (213) away from one end of the hatch cover (1) and communicating with the outside to form a first protruding part (214) on one side of the groove (212) and a second protruding part (215) on the other side of the groove (212); when the first plate (221) is at the locking position, the first plate (221) at least partially enters the groove (212) through the opening (213) and abuts against the second protruding part (215), the first protruding part (214) abutting against the upper end face of the first plate (221) to lock the hatch cover (1) at the lifting position, and the first locking part (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 releases the hatch cover (1) from being locked.

2. The hatch cover hoisting structure according to claim 1, characterized in that The hatch cover hoisting structure further comprises an abutting column (4) located at one side of the rotating part of the hatch cover (1), which is arranged in the Y direction and spaced from the hatch cover (1), and is fixed to the upper end surface of the hatch cover (1) through a connecting rod (41); An elastic member (5) is arranged at the hatch cover to abut against the abutting column (4) and drive the hatch cover (1) to rotate in the Y direction, so that the hatch cover (1) is in the hoisting position, and the abutting column (4) abuts against the elastic member (5).

3. The hatch hoisting structure according to claim 1, characterized in that The lifting arm (3) comprises a first arm (31) and a second arm (32) connected to one end of the first arm (31), and a lifting ring (321) is arranged on the second arm (32); An installation cylinder (11) is arranged on the upper end surface of the hatch cover (1) to cooperate with the first arm (31), and a stop plate (311) is arranged on the first arm (31); when the hatch cover (1) is in the hoisting position, the first arm (31) is moved along the axial direction of the installation cylinder (11) to be inserted into the installation cylinder (11), and the stop plate (311) abuts against the end of the installation cylinder (11), so that the lifting arm (3) is in the working position.

4. The hatch cover hoisting structure according to claim 3, characterized in that A fixing ring (12) and a clamping frame (13) are arranged 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) to be 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 in the X direction to drive the second arm (32) to be clamped in the clamping frame (13), so that the lifting arm (3) is in the stowed position.

5. The hatch hoisting structure according to claim 4, wherein The clamping frame (13) comprises two clamping plates (131) arranged in the Y direction, and the two clamping plates (131) are fixedly installed on the hatch cover (1); the interval between the two clamping plates (131) forms a clamping groove (132) for clamping the second arm (32).

6. The hatch hoisting structure according to claim 1, wherein The first locking part (21) has two, and the two first locking parts (21) are arranged at the two ends of the hatch cover (1) in the X direction; The second locking part (22) has two, and the two second locking parts (22) are arranged at the two sides of the hatch cover in the X direction.

7. The hatch hoisting structure according to claim 3, wherein The lifting arm (3) further comprises a reinforcing plate (6), one end of which is connected to the first arm (31), and the other end of which is connected to the second arm (32).

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