Chained hatch cover of bulk cargo ship

Abstract

The utility model relates to the field of bulk cargo ships, and discloses a bulk cargo ship chained hatch cover which comprises a supporting frame and two guide rails, the two guide rails are installed on the two sides of the supporting frame respectively, a sealing assembly is installed on the top of the supporting frame, and supporting assemblies are installed on the outer sides of the guide rails. The sealing assembly comprises a first cover plate, a second cover plate and a sealing groove, the sealing groove is formed in the top of the supporting frame, hinges are connected and installed between the first cover plate and the supporting frame and between the second cover plate and the supporting frame, and the included angle between the first cover plate and the second cover plate is sealed through a sealing strip. Through the two cover plates, the sealing grooves and the clamping strips, opening and closing of the cabin body are facilitated, sealing between the two cover plates and the supporting frame is improved, and rainwater and seawater entering the cabin body are reduced; and through stretching and retracting of the telescopic rods, the joint of the two cover plates can be automatically bounced when the cabin body is opened, guiding folding is facilitated, and use of a hydraulic cylinder is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bulk carriers, specifically a chain-type hatch cover for bulk carriers. Background Technology

[0002] Bulk carriers are ships specifically designed to transport large quantities of bulk cargo, such as coal, ore, and grain. By covering the hull with hatches, rainwater, seawater, and debris can be effectively prevented from entering the cargo hold, protecting the cargo from damage.

[0003] The publication number CN212354302U discloses a chain-type large hatch cover, which includes a set of symmetrically arranged frames, hatch cover components, hatch enclosures, drive components and a set of locking components, with several slide rails fixed side by side on the top surface of the frames.

[0004] When the hatch covers are opened and closed, they unfold or stack with each other as they slide, which solves the problems of long operating time and large space occupation of existing hatch covers. However, when opening and closing, they require the area of ​​at least one cover plate, and the sealing of the joint after covering is poor, which makes it easy for rainwater or seawater to enter the cabin. Utility Model Content

[0005] The purpose of this utility model is to provide a chain-type hatch cover for bulk carriers to solve the technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A chain-type hatch cover for bulk carriers includes a support frame and two guide rails, which are respectively installed on both sides of the support frame. A sealing assembly is installed on the top of the support frame, and a support assembly is installed on the outer side of the guide rails. The sealing assembly includes a first cover plate, a second cover plate, and a sealing groove. The sealing groove is located on the top of the support frame. Hinges are installed between the first cover plate, the second cover plate, and the support frame. The angle between the first cover plate and the second cover plate is sealed by a sealing strip. A connecting rod sleeve is installed at the rear of the second cover plate. A gearbox is installed at one end of the connecting rod sleeve, and a motor is installed at the input end of the gearbox. Rollers are installed at both ends of the shaft inside the connecting rod sleeve. A sealing gasket is movably installed inside the support frame and within the sealing groove. Several first springs are installed at the bottom of the sealing gasket. Limit grooves are opened on the bottom of the first cover plate and the second cover plate near both sides and the front and rear ends. A retaining strip is installed inside the limit groove.

[0008] Preferably, the first cover plate and the second cover plate are movably connected, and the output shaft end of the gearbox is connected to the shaft inside the connecting rod sleeve.

[0009] Preferably, the rotating roller is located at the top of the guide rail and rotates, and the cross-section of the sealing gasket is arranged in an inverted "T" shape.

[0010] Preferably, the top of the support frame is snapped into the limiting groove, and the locking strip is snapped into the sealing groove.

[0011] Preferably, baffles are fixedly installed on both sides of the first cover plate near the rear end. The support assembly includes a fixed sleeve, which is fixedly installed on the outside of the guide rail. A telescopic rod is movably installed through the top of the fixed sleeve, and a second spring is installed at the bottom of the telescopic rod inside the fixed sleeve.

[0012] Preferably, the outer side of the baffle is perpendicular to the telescopic rod, and the top end of the telescopic rod is circular.

[0013] Preferably, the diameter of the base at the bottom of the telescopic rod is larger than the diameter at the top, and the telescopic rod is located inside the fixed sleeve and is arranged to slide up and down.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) The hatch cover, by setting a sealing component, connects the first cover plate and the second cover plate through a hinge, which facilitates the opening and closing of the hatch. The top of the support frame is engaged with the limiting groove, and the locking strip is engaged with the sealing groove, which improves the seal between the two cover plates and the support frame and reduces the entry of rainwater and seawater into the hatch.

[0016] 2) The hatch cover, by setting a support assembly, has a telescopic rod that extends and retracts inside the fixed sleeve, so that the first cover plate automatically retracts when it is covered. The telescopic rod slides upward through the second spring, so that the connection between the two cover plates can automatically pop up when the hatch is opened, which facilitates the guiding folding and reduces the use of hydraulic cylinders. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a chain hatch cover for a bulk carrier in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of the sealing assembly in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the support frame in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the support component in an embodiment of this utility model.

[0021] In the diagram: 1. Support frame; 2. Guide rail; 3. Sealing assembly; 4. Support assembly; 5. First cover plate; 6. Second cover plate; 7. Hinge; 8. Sealing strip; 9. Linkage sleeve; 10. Gearbox; 11. Motor; 12. Rotating roller; 13. Sealing groove; 14. Sealing gasket; 15. First spring; 16. Limiting groove; 17. Locking strip; 18. Baffle; 19. Fixing sleeve; 20. Telescopic rod; 21. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-4 A chain-type hatch cover for bulk carriers includes a support frame 1 and two guide rails 2, which are respectively installed on both sides of the support frame 1. A sealing assembly 3 is installed on the top of the support frame 1, and a support assembly 4 is installed on the outside of the guide rails 2.

[0025] See Figure 2 and Figure 3 Furthermore, the sealing assembly 3 includes a first cover plate 5, a second cover plate 6, and a sealing groove 13. The sealing groove 13 is located on the top of the support frame 1. Hinges 7 are installed between the first cover plate 5, the second cover plate 6, and the support frame 1. The angle between the first cover plate 5 and the second cover plate 6 is sealed by a sealing strip 8. A connecting rod sleeve 9 is installed at the rear of the second cover plate 6. A reduction gearbox 10 is installed at one end of the connecting rod sleeve 9. A motor 11 is installed at the input end of the reduction gearbox 10. Rollers 12 are installed at both ends of the shaft inside the connecting rod sleeve 9. A sealing gasket 14 is movably installed inside the support frame 1 and located within the sealing groove 13. Several first springs 15 are installed at the bottom of the sealing gasket 14. Limiting grooves 16 are opened at the bottom of the first cover plate 5 and the second cover plate 6 on both sides and at the front and rear ends. A retaining strip 17 is installed inside the limiting groove 16. The support frame 1 is used to install on the top of the cabin.

[0026] The first cover plate 5 and the second cover plate 6 are movably connected. The output shaft end of the gearbox 10 is connected to the shaft in the connecting rod sleeve 9. The first cover plate 5 and the support frame 1 are connected by a hinge 7 to rotate, so that the first cover plate 5 and the second cover plate 6 can be folded and unfolded.

[0027] The rotating roller 12 is located on top of the guide rail 2 and rotates. The sealing gasket 14 has an inverted "T" shaped cross-section. The rotating roller 12 is used to rotate on top of the guide rail 2 and slide back and forth.

[0028] The top of the support frame 1 is snapped into the limiting groove 16, and the locking strip 17 is snapped into the sealing groove 13. The locking strip 17 and the sealing gasket 14 improve the sealing between the first cover plate 5, the second cover plate 6 and the support frame 1.

[0029] Specifically, the output shaft of the motor 11 is connected to the shaft in the connecting rod sleeve 9 through the reduction gearbox 10, so that the roller 12 rotates and moves on the top of the guide rail 2, thereby causing the first cover plate 5 and the second cover plate 6 to fold and unfold, so as to facilitate the opening and covering of the internal compartment of the support frame 1.

[0030] Example 2

[0031] See Figure 4 Furthermore, based on Embodiment 1, baffles 18 are fixedly installed on both sides of the rear end of the first cover plate 5, and the support assembly 4 includes a fixing sleeve 19. The fixing sleeve 19 is fixedly installed on the outside of the guide rail 2. A telescopic rod 20 is movably installed through the top of the fixing sleeve 19, and a second spring 21 is installed at the bottom of the telescopic rod 20 and inside the fixing sleeve 19.

[0032] The outer side of the baffle 18 is perpendicular to the telescopic rod 20. The top of the telescopic rod 20 is circular. The telescopic rod 20 lifts the baffle 18 and causes the connection between the first cover plate 5 and the second cover plate 6 to spring upward.

[0033] The diameter of the base at the bottom of the telescopic rod 20 is larger than the diameter at the top. The telescopic rod 20 is located inside the fixed sleeve 19 and is arranged to slide up and down, so as to facilitate lifting and retraction.

[0034] Specifically, when the first cover plate 5 and the second cover plate 6 are unfolded to cover the cabin, the baffle 18 contacts the telescopic rod 20 and retracts. Through the rotation of the roller 12, the telescopic rod 20 automatically pushes the connection between the first cover plate 5 and the second cover plate 6 upward under the action of the second spring 21, so that the first cover plate 5 and the second cover plate 6 can be folded.

[0035] In actual operation, the support frame 1 is used to be installed on the top of the cabin, and the top of the cabin is covered, sealed and opened by the first cover plate 5 and the second cover plate 6;

[0036] When folding, opening, and sealing, the output shaft of motor 11 drives the shaft in the connecting rod sleeve 9 to rotate through the reduction gearbox 10, thereby causing the two rollers 12 to move at the top of the guide rail 2, folding the first cover plate 5 and the second cover plate 6 and opening the cabin. The sealing gasket 14 automatically slides upward under the action of the first spring 15, automatically expelling the dust in the sealing groove 13. The first cover plate 5 and the second cover plate 6 are unfolded to cover the cabin. At the same time, the top of the support frame 1 is inserted into the limiting groove 16, and the locking strip 17 is inserted into the sealing groove 13, causing the sealing gasket 14 to slide downward. At the same time, under the action of the first spring 15, the sealing gasket 14 and the locking strip 17 are tightly fitted, sealing the support frame 1 with the first cover plate 5 and the second cover plate 6.

[0037] When providing support, the first cover plate 5 covers the top of the support frame 1, and the baffle 18 contacts the top of the telescopic rod 20, causing the telescopic rod 20 to retract into the fixed sleeve 19. When the cabin is opened, the telescopic rod 20 slides upward automatically under the action of the second spring 21, lifting the connection between the first cover plate 5 and the second cover plate 6, so that the first cover plate 5 and the second cover plate 6 can be guided and folded.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain-type hatch cover for a bulk carrier, comprising a support frame (1) and two guide rails (2), wherein the two guide rails (2) are respectively installed on both sides of the support frame (1), characterized in that: A sealing assembly (3) is installed on the top of the support frame (1), and a support assembly (4) is installed on the outside of the guide rail (2). The sealing assembly (3) includes a first cover plate (5), a second cover plate (6), and a sealing groove (13). The sealing groove (13) is opened on the top of the support frame (1). Hinges (7) are installed between the first cover plate (5), the second cover plate (6), and the support frame (1). The angle between the first cover plate (5) and the second cover plate (6) is sealed by a sealing strip (8). A connecting rod sleeve (9) is installed at the rear of the second cover plate (6). A gearbox (10) is installed at one end of the connecting rod sleeve (9). The input end of the gearbox (10) is equipped with a motor (11), and both ends of the shaft in the connecting rod sleeve (9) are equipped with rollers (12). The support frame (1) is movably installed with a sealing gasket (14) inside the sealing groove (13). Several first springs (15) are installed at the bottom of the sealing gasket (14). The bottom of the first cover plate (5) and the second cover plate (6) are provided with limit grooves (16) on both sides and at the front and rear ends. The limit grooves (16) are equipped with locking strips (17).

2. A chain-type hatch cover for a bulk carrier according to claim 1, characterized in that: The first cover plate (5) and the second cover plate (6) are movably connected, and the output shaft end of the gearbox (10) is connected to the shaft in the connecting rod sleeve (9).

3. A chain-type hatch cover for a bulk carrier according to claim 1, characterized in that: The roller (12) is located on top of the guide rail (2) and rotates. The cross-section of the sealing gasket (14) is set in an inverted "T" shape.

4. A chain-type hatch cover for a bulk carrier according to claim 1, characterized in that: The top of the support frame (1) is snapped into the limiting groove (16), and the locking strip (17) is snapped into the sealing groove (13).

5. A chain-type hatch cover for a bulk carrier according to claim 1, characterized in that: Both sides of the first cover plate (5) are fixedly installed with baffles (18) near the rear end. The support assembly (4) includes a fixed sleeve (19). The fixed sleeve (19) is fixedly installed on the outside of the guide rail (2). A telescopic rod (20) is movably installed through the top of the fixed sleeve (19). A second spring (21) is installed at the bottom end of the telescopic rod (20) and inside the fixed sleeve (19).

6. A chain-type hatch cover for a bulk carrier according to claim 5, characterized in that: The outer side of the baffle (18) is perpendicular to the telescopic rod (20), and the top of the telescopic rod (20) is circular.

7. A chain-type hatch cover for a bulk carrier according to claim 5, characterized in that: The diameter of the base plate at the bottom of the telescopic rod (20) is larger than the diameter at the top, and the telescopic rod (20) is located inside the fixed sleeve (19) and is arranged to slide up and down.

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