A movable hatch cover for a large-opening cargo hold of a ship
By designing a movable hatch system for large open cargo holds in ships, the problem of the hatch changing position and size in the prior art requires crane operation, and efficient loading and unloading without cranes is achieved.
Patent Information
- Application Number
- CN202420887703.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-26
AI Technical Summary
When changing the opening position and size of the cargo holder of existing ships, the lifting cover of the large opening of the cargo holder requires crane operation, which is time-consuming and labor-intensive, and occupies dock space, affecting loading and unloading efficiency.
A movable hatch system is designed, including two sets of hatch structures and driving structures that are slidingly arranged on the hatch enclosure. The second hatch cover is moved into the receiving groove of the first hatch enclosure through the first driving structure, and then the hatch cover is driven to slide along the hatch enclosure through the second driving structure to change the opening position and size.
It realizes that the opening position and size of the cargo hold can be changed without a crane, improves the efficiency of cargo loading and unloading, reduces dock occupation, and avoids hatch cover collisions.
Smart Images
Figure CN222728198U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ship equipment and relates to a movable hatch cover for a large-opening cargo hold of a ship. Background Art
[0002] In order to meet the transportation requirements of special cargoes, some ships are designed with a whole large cargo hold in which larger cargoes can be loaded.
[0003] However, due to the large opening of the cargo hold, most of the hatch covers on the hatch coaming are designed to be lift-off hatch covers. When the position of the cargo hold opening needs to be opened or changed, the hatch cover needs to be lifted by a crane on the dock, which is time-consuming and labor-intensive, and greatly reduces the efficiency of cargo loading and unloading. In addition, the lifted hatch cover needs to be placed on the dock, occupying dock space and affecting vehicle traffic. Summary of the Invention
[0004] The purpose of the utility model is to address the above-mentioned problems in the existing technology and to propose a movable hatch cover for a large-opening cargo hold of a ship, which can change the position and size of the cargo hold opening to meet different loading and unloading requirements.
[0005] The purpose of this utility model can be achieved through the following technical solutions:
[0006] A movable hatch cover for a large-opening cargo hold of a ship, wherein the ship is provided with a large-opening cargo hold, and the large-opening cargo hold is provided with a hatch coaming, the movable hatch cover comprising two groups of hatch cover structures, both of which are slidably arranged on the hatch coaming, the hatch cover structures comprising: a first hatch cover, wherein a receiving groove is provided on a side of the first hatch cover close to the bow, and the first hatch cover is slidably arranged on the hatch coaming along the length direction; a second hatch cover, wherein the second hatch cover is slidably arranged on the hatch coaming along the length direction, and at least one position wherein the second hatch cover can slide as a whole into the receiving groove; a first driving structure, wherein the first driving structure is arranged in the first hatch cover, and the first driving structure can change the distance between the first hatch cover and the second hatch cover; and a second driving structure, wherein the second driving structure is arranged in the first hatch cover, and the second driving structure can drive the first hatch cover to slide back and forth along the length direction of the hatch coaming;
[0007] A limiting structure is provided on the hatch coaming, and the limiting structure can limit the range of movement of the two first hatch covers.
[0008] In the above-mentioned movable hatch cover for a large-opening cargo hold of a ship, a first guide rail and a second guide rail are respectively provided on both sides of the hatch enclosure along the length direction, two first grooves are respectively provided on both sides of the first hatch cover, and a plurality of first rollers are rotatably arranged in the first grooves through a plurality of first rotating shafts, and the plurality of first rollers are all rolled on the first guide rails, and two second grooves are respectively provided on both sides of the second hatch cover, and a plurality of second rollers are rotatably arranged in the second grooves through a plurality of second rotating shafts, and the plurality of second rollers are all rolled on the second guide rails.
[0009] In the above-mentioned movable hatch cover for a large-opening cargo hold of a ship, the first driving structure includes:
[0010] An installation cavity, the installation cavity being opened in the first hatch;
[0011] Several first drive components are arranged in the installation cavity, and the first drive components have: an electric winch, the electric winch is fixed in the installation cavity, and a steel wire rope is wound on the winch of the electric winch; a through hole, the through hole is opened on the side wall of the accommodating groove and is connected with the installation cavity, the free end of the steel wire rope passes through the through hole and the end is fixedly connected to the side wall of the second hatch cover.
[0012] In the above-mentioned movable hatch cover for a large-opening cargo hold of a ship, the second drive structure includes two second drive assemblies, which are respectively arranged in the first hatch cover on both sides of the accommodating groove, and the second drive assemblies include:
[0013] a cavity, the cavity being defined in the first hatch;
[0014] The first motor is fixed in the cavity, wherein one end of a first rotating shaft extends into the cavity and the end portion is transmission-connected to the first motor.
[0015] In the above-mentioned movable hatch cover for a large-opening cargo hold of a ship, the limiting structure includes:
[0016] Two first vertical rods, the two first vertical rods are respectively arranged at both ends of the hatch coaming in the longitudinal direction, a first spring is horizontally provided on the side of the first vertical rod close to the hatch coaming, a first rubber block is fixed to the outer end of the first spring, a first horizontal rod is horizontally fixed on the first vertical rod, and the first horizontal rod is located inside the first spring;
[0017] A second vertical rod, two second springs are horizontally provided on both sides of the second vertical rod, a second rubber block is fixed on the outer end of the second spring, two second horizontal rods are horizontally fixed on both sides of the second vertical rod, and the second horizontal rods are located in the corresponding second springs.
[0018] In the above-mentioned movable hatch cover for a large-opening cargo hold of a ship, a limiting rod is horizontally provided on the side wall of the accommodating groove, and a third rubber block is provided at the outer end of the limiting rod. When the second hatch cover as a whole enters the accommodating groove, the third rubber block contacts the second hatch cover.
[0019] Compared with the prior art, the utility model has the following advantages:
[0020] 1. In the initial state, both second hatch covers extend beyond their corresponding first hatch covers, covering the entire hatch enclosure with the two first hatch covers and the two second hatch covers to prevent rainwater from entering the large cargo hold opening. When cargo needs to be loaded or unloaded, the first drive structure moves the second hatch covers into the receiving slots of the first hatch covers. The second drive structure then drives the first and second hatch covers to slide along the length of the hatch enclosure, changing the position and size of the opening to meet the loading and unloading requirements of cargo of different sizes and greatly improving loading and unloading efficiency. In addition, the limiting structure can limit the range of movement of the two first hatch covers to prevent collision between the two first hatch covers.
[0021] 2. The first rollers on both sides of the first hatch cover respectively roll on the two first guide rails, and the second rollers on both sides of the second hatch cover respectively roll on the two second guide rails, ensuring that the first hatch cover and the second hatch cover can slide along the length direction of the hatch coaming, so that the second hatch cover can slide smoothly into the receiving groove of the first hatch cover, with a simple structure;
[0022] 3. Simultaneously start several electric winches, tighten the wire ropes, and pull the second hatch cover into the receiving slot. When the second hatch cover needs to be deployed, move the first hatch cover forward. Because the second hatch cover is tightened inside the first hatch cover under the action of the wire ropes, it moves with the first hatch cover. When the first hatch cover moves to the most forward position with the second hatch cover, move the first hatch cover aft and release the wire ropes on the electric winches at the same time, so that the first hatch cover moves alone and the second hatch cover remains in its current position. The first and second hatch covers are gradually deployed. The operation is simple.
[0023] 4. Start the two first motors to drive the first roller to rotate through the first rotating shaft, so that the first hatch can slide back and forth along the first guide rail. The structure is simple;
[0024] When the first hatch cover near the tail moves alone to the tail and contacts the first rubber block on the first vertical rod, the first return spring is compressed and contracts to play a buffering role. At this time, the first motor is closed, the first hatch cover stops moving, and the first horizontal rod plays the role of the last limit. When the first hatch cover near the tail moves alone to the tail and contacts the second rubber block on the second vertical rod, the second return spring is compressed and contracts to play a buffering role. At this time, the first motor is closed, the first hatch cover stops moving, and the second horizontal rod plays the role of the last limit. Similarly, when the first hatch cover near the tail moves with the second hatch cover stacked together to the head and contacts the second rubber block on the second vertical rod, the second return spring is compressed and contracts to play a buffering role. At this time, the first motor is closed, the first hatch cover stops moving, and the second horizontal rod plays the role of the last limit. When the first hatch cover near the tail moves alone to the tail and contacts the first rubber block on the first vertical rod, the first return spring is compressed and contracts to play a buffering role. At this time, the first motor is closed, the first hatch cover stops moving, and the first horizontal rod plays the role of the last limit.
[0025] 6. Start the electric winch to reel in the wire rope and pull the second hatch cover into the accommodating groove. When the second hatch cover is completely moved into the accommodating groove, the third rubber block on the limit rod contacts the side wall of the second hatch cover, limiting the second hatch cover from continuing to move and hitting the first hatch cover. At the same time, the third rubber block acts as a buffer. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a working schematic diagram of the utility model;
[0027] Figure 2 It is a structural diagram of the utility model;
[0028] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;
[0029] Figure 4 yes Figure 3 Cross-sectional view at the middle BB;
[0030] Figure 5 yes Figure 3 Cross-sectional view at point C in the middle;
[0031] Figure 6 yes Figure 4 Cross-sectional view at point D in the middle;
[0032] Figure 7 This is a diagram showing the state where the first hatch and the second hatch are fully opened.
[0033] In the figure: 1. Large opening cargo hold; 11. Hatch coaming; 111. First guide rail; 112. Second guide rail; 12. First vertical rod; 121. First horizontal rod; 122. First spring; 123. First rubber block; 13. Second vertical rod; 131. Second horizontal rod; 132. Second spring; 133. Second rubber block; 2. First hatch cover; 21. Receiving groove; 211. Perforation; 212. Limit rod; 213. Third rubber block; 22. Electric winch; 221. Wire rope; 23. First groove; 231. First rotating shaft; 232. First roller; 24. First cavity; 241. First motor; 25. Mounting cavity; 3. Second hatch cover; 31. Second groove; 311. Second rotating shaft; 312. Second roller. DETAILED DESCRIPTION
[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0035] like Figure 1-5 As shown, a movable hatch cover for a large-opening cargo hold of a ship is provided. A large-opening cargo hold 1 is provided in the ship, and a hatch coaming 11 is provided on the large-opening cargo hold 1.
[0036] The movable hatch cover comprises two groups of hatch cover structures and a limiting structure.
[0037] The two groups of hatch cover structures are both slidably arranged on the hatch coaming 11, and the hatch cover structure includes a first hatch cover 2, a second hatch cover 3, a first driving structure and a second driving structure.
[0038] A receiving groove 21 is formed on a front side of the first hatch cover 2 , and the first hatch cover 2 is slidably arranged on the hatch coaming 11 along the length direction.
[0039] The second hatch cover 3 is slidably arranged on the hatch coaming 11 along the length direction, and there is at least one position where the second hatch cover 3 can slide as a whole into the receiving groove 21.
[0040] The first driving structure is disposed in the first hatch cover 2 , and the first driving structure is capable of changing the distance between the first hatch cover 2 and the second hatch cover 3 .
[0041] The second driving structure is arranged in the first hatch cover 2, and the second driving structure can drive the first hatch cover 2 to slide back and forth along the length direction of the hatch coaming 11;
[0042] The limiting structure is provided on the hatch coaming 11 , and the limiting structure can limit the range of movement of the two first hatch covers 2 .
[0043] In the initial state, the two second hatch covers 3 are extended out of the corresponding first hatch covers 2, and the entire hatch coaming 11 is covered by the two first hatch covers 2 and the two second hatch covers 3 to prevent rainwater from entering the large-opening cargo hold 1. When cargo needs to be loaded and unloaded, the second hatch covers 3 are moved into the receiving groove 21 of the first hatch cover 2 through the first driving structure, and then the first hatch covers 2 and the second hatch covers 3 are driven by the second driving structure to slide along the length direction of the hatch coaming 11, changing the position and size of the opening to meet the loading and unloading requirements of cargo of different sizes, thereby greatly improving the loading and unloading efficiency; in addition, the limiting structure can limit the range of movement of the two first hatch covers 2 to avoid collision between the two first hatch covers 2.
[0044] Specifically, a first guide rail 111 and a second guide rail 112 are respectively provided on both sides of the hatch coaming 11 along the length direction, and two first grooves 23 are respectively provided on both sides of the first hatch cover 2. A plurality of first rollers 232 are rotatably provided in the first grooves 23 through a plurality of first rotating shafts 231, and the plurality of first rollers 232 are all rollingly provided on the first guide rail 111. Two second grooves 31 are respectively provided on both sides of the second hatch cover 3, and a plurality of second rollers 312 are rotatably provided in the second grooves 31 through a plurality of second rotating shafts 311, and the plurality of second rollers 312 are all rollingly provided on the second guide rail 112. An annular groove is provided on the wheel surface of the first roller 232 and the second roller 312, and the first roller 232 and the second roller 312 are rollingly provided on the first guide rail 111 and the second guide rail 112 through the annular groove.
[0045] The plurality of first rollers 232 on both sides of the first hatch cover 2 respectively roll on the two first guide rails 111, and the plurality of second rollers 312 on both sides of the second hatch cover 3 respectively roll on the two second guide rails 112, ensuring that the first hatch cover 2 and the second hatch cover 3 can slide along the length direction of the hatch coaming 11, so that the second hatch cover 3 can slide smoothly into the receiving groove 21 of the first hatch cover 2, with a simple structure.
[0046] Specifically, the first driving structure includes a mounting cavity 25 and a plurality of first driving components.
[0047] The installation cavity 25 is opened in the first hatch 2 .
[0048] Several first drive assemblies are disposed in the installation cavity 25 , and the first drive assemblies include an electric winch 22 and a through-hole 211 .
[0049] The electric winch 22 is fixed in the installation cavity 25 , and a steel wire rope 221 is wound around the winch of the electric winch 22 .
[0050] The through hole 211 is formed on the side wall of the receiving groove 21 and communicates with the installation cavity 25 . The free end of the steel wire rope 221 passes through the through hole 211 and the end portion is fixedly connected to the side wall of the second hatch cover 3 .
[0051] At the same time, several electric winches 22 are started, the wire ropes 221 are tightened, and the second hatch cover 3 is pulled into the accommodating groove 21. When the second hatch cover 3 needs to be unfolded, the first hatch cover 2 is moved toward the front. Since the second hatch cover 3 is tightened in the first hatch cover 2 under the action of the wire ropes 221, it moves with the first hatch cover 2. When the first hatch cover 2 moves to the front with the second hatch cover 3, the first hatch cover 2 is moved toward the rear, and the wire ropes 221 on the electric winches 22 are released at the same time, so that the first hatch cover 2 moves alone, and the second hatch cover 3 remains in the current position, and the first hatch cover 2 and the second hatch cover 3 are gradually unfolded. The operation is simple.
[0052] Specifically, the second drive structure includes two second drive assemblies, which are respectively arranged in the first hatch 2 on both sides of the accommodating groove 21 , and the second drive assembly includes a cavity 24 and a first motor 241 .
[0053] The cavity 24 is opened in the first hatch 2 .
[0054] The first motor 241 is fixed in the cavity 24 , wherein one end of a first rotating shaft 231 extends into the cavity 24 and the end portion is fixedly connected to the output shaft of the first motor 241 .
[0055] The two first motors 241 are started to drive the first roller 232 to rotate via the first rotating shaft 231 , so that the first hatch 2 can slide back and forth along the first guide rail 111 , with a simple structure.
[0056] Specifically, the limiting structure includes two first vertical rods 12 and a second vertical rod 13 .
[0057] The two first vertical rods 12 are respectively arranged at both ends of the hatch coaming 11 in the longitudinal direction. A first spring 122 is horizontally provided on the side of the first vertical rod 12 close to the hatch coaming 11. A first rubber block 123 is fixed to the outer end of the first spring 122. A first horizontal rod 121 is horizontally fixed on the first vertical rod 12, and the first horizontal rod 121 is located inside the first spring 122.
[0058] Two second springs 132 are horizontally provided on both sides of the second vertical rod 13 , and second rubber blocks 133 are fixed to the outer ends of the second springs 132 . Two second horizontal rods 131 are horizontally fixed on both sides of the second vertical rod 13 , and the second horizontal rods 131 are located in the corresponding second springs 132 .
[0059] When the first hatch cover 2 near the bow moves toward the bow with the stacked second hatch cover 3 until it contacts the first rubber block 123 on the first vertical rod 12, the first return spring 122 is compressed and contracts to play a buffering role. At this time, the first motor 241 is turned off, the first hatch cover 2 stops moving, and the first horizontal rod 121 plays the role of the final limit. When the first hatch cover 2 near the bow moves toward the tail alone to contact the second rubber block 133 on the second vertical rod 13, the second return spring 132 is compressed and contracts to play a buffering role. At this time, the first motor 241 is turned off, the first hatch cover 2 stops moving, and the second horizontal rod 131 plays the role of the final limit. Logic is that when the first hatch cover 2 near the tail moves toward the front with the stacked second hatch cover 3 and contacts the second rubber block 133 on the second vertical rod 13, the second return spring 132 is compressed and contracts to play a buffering role. At this time, the first motor 241 is turned off, the first hatch cover 2 stops moving, and the second horizontal rod 131 plays the role of the final limit. When the first hatch cover 2 near the tail moves toward the tail alone and contacts the first rubber block 123 on the first vertical rod 12, the first return spring 122 is compressed and contracts to play a buffering role. At this time, the first motor 241 is turned off, the first hatch cover 2 stops moving, and the first horizontal rod 121 plays the role of the final limit.
[0060] Specifically, a limiting rod 212 is horizontally provided on the side wall of the accommodating groove 21 , and a third rubber block 213 is provided at the outer end of the limiting rod 212 . When the second hatch 3 as a whole enters the accommodating groove 21 , the third rubber block 213 contacts the second hatch 3 .
[0061] The electric winch 22 is started to reel in the wire rope 221, pulling the second hatch cover 3 into the accommodating groove 21. When the second hatch cover 3 is completely moved into the accommodating groove 21, the third rubber block 213 on the limiting rod 212 contacts the side wall of the second hatch cover 3, limiting the second hatch cover 3 from continuing to move and hitting the first hatch cover 2. At the same time, the third rubber block 213 plays a buffering role.
Claims
1. A movable hatch cover for a large-opening cargo hold of a ship, wherein the ship is provided with a large-opening cargo hold (1), and the large-opening cargo hold (1) is provided with a hatch coaming (11), characterized in that: The movable hatch cover comprises two groups of hatch cover structures, both groups of hatch cover structures are slidably arranged on the hatch coaming (11), and the hatch cover structures comprise: a first hatch cover (2), a side of the first hatch cover (2) being provided with a receiving groove (21), and the first hatch cover (2) being slidably arranged on the hatch coaming (11) along the length direction; a second hatch cover (3), the second hatch cover (3) being slidably arranged on the hatch coaming (11) along the length direction, and at least one position, the second hatch cover (3) can slide into the receiving groove (21) as a whole; a first driving structure, the first driving structure being arranged in the first hatch cover (2), and the first driving structure can change the distance between the first hatch cover (2) and the second hatch cover (3); and a second driving structure, the second driving structure being arranged in the first hatch cover (2), and the second driving structure can drive the first hatch cover (2) to slide back and forth along the length direction of the hatch coaming (11); A limiting structure, wherein the limiting structure is arranged on the hatch coaming (11), and the limiting structure can limit the range of movement of the two first hatch covers (2).
2. The movable hatch cover for a large-opening cargo hold of a ship according to claim 1, characterized in that: A first guide rail (111) and a second guide rail (112) are respectively provided on both sides of the hatch coaming (11) along the length direction; two first grooves (23) are respectively provided on both sides of the first hatch cover (2); a plurality of first rollers (232) are rotatably arranged in the first grooves (23) via a plurality of first rotating shafts (231); the plurality of first rollers (232) are all rollingly arranged on the first guide rail (111); two second grooves (31) are respectively provided on both sides of the second hatch cover (3); a plurality of second rollers (312) are rotatably arranged in the second grooves (31) via a plurality of second rotating shafts (311); the plurality of second rollers (312) are all rollingly arranged on the second guide rail (112).
3. The movable hatch cover for a large-opening cargo hold of a ship according to claim 2, characterized in that: The first driving structure comprises: An installation cavity (25), the installation cavity (25) being opened in the first hatch (2); A plurality of first drive assemblies, each of which is arranged in the installation cavity (25), wherein the first drive assemblies comprise: an electric winch (22), the electric winch (22) being fixedly arranged in the installation cavity (25), a steel wire rope (221) being wound around the winch of the electric winch (22); and a through hole (211), the through hole (211) being formed on a side wall of the receiving groove (21) and being connected to the installation cavity (25), a free end of the steel wire rope (221) passing through the through hole (211) and an end of which is fixedly connected to the side wall of the second hatch cover (3).
4. The movable hatch cover for a large-opening cargo hold of a ship according to claim 3, characterized in that: The second drive structure comprises two second drive assemblies, the two second drive assemblies being respectively arranged in the first hatch (2) on both sides of the accommodating groove (21), and the second drive assemblies comprising: a cavity (24), the cavity (24) being opened in the first hatch cover (2); A first motor (241), the first motor (241) being fixedly disposed in the cavity (24), wherein one end of a first rotating shaft (231) extends into the cavity (24) and the end portion is drivingly connected to the first motor (241).
5. The movable hatch cover for a large-opening cargo hold of a ship according to claim 4, characterized in that: The limiting structure comprises: Two first vertical rods (12), the two first vertical rods (12) being respectively arranged at two ends of the hatch coaming (11) in a length direction, a first spring (122) being horizontally arranged on a side of the first vertical rod (12) close to the hatch coaming (11), a first rubber block (123) being fixedly arranged at an outer end of the first spring (122), a first horizontal rod (121) being horizontally fixedly arranged on the first vertical rod (12), and the first horizontal rod (121) being located inside the first spring (122); A second vertical rod (13), two second springs (132) are horizontally arranged on both sides of the second vertical rod (13), a second rubber block (133) is fixedly arranged at the outer end of the second spring (132), and two second horizontal rods (131) are horizontally fixedly arranged on both sides of the second vertical rod (13), and the second horizontal rods (131) are located inside the corresponding second springs (132).
6. The movable hatch cover for a large-opening cargo hold of a ship according to claim 5, characterized in that: A limiting rod (212) is horizontally arranged on the side wall of the containing groove (21), and a third rubber block (213) is arranged at the outer end of the limiting rod (212). When the second hatch cover (3) as a whole enters the containing groove (21), the third rubber block (213) contacts the second hatch cover (3).