Marine closed cabin door

Abstract

The utility model provides a marine closed cabin door, which relates to the technical field of cabin doors and comprises a cabin body, a door frame arranged on the top surface of the cabin body, two hinges arranged on one side of the door frame, a door body arranged on the top of the cabin body, and two hooks arranged on the surface of the door body. The door body is opened and closed through movement of the door along the hinge, when the door is opened, the self-locking winch on the bottom face of the inclined ladder can be rotated, the self-locking winch can contract the chain, the chain can drive the door body to be opened upwards through the pulley, and the sealing strips are installed on the eight edge faces, connected with the door frame, of the door body. When the cabin door is closed, the door body descends to enable the door body to fall on the door frame to complete closing, the pressing lock handle can be rotated when the door body is closed, the pressing lock handle can drive the pressing pin to enable the pressing pin to abut against the inclined opening of the door frame to complete sealing when rotating, and the defects that the cabin door cannot be opened in a narrow space and the air tightness is not good are overcome.

Description

Technical Field

[0001] This utility model relates to the field of ship cabin door technology, and in particular to a ship cabin door with airtight design. Background Technology

[0002] The perimeter of the epidemic prevention functional area is connected to other medical areas on the ship by stairways, which have large openings on the deck. The stairway sealing door is normally fixed to the ladder frame and is used to seal the large opening at the perimeter when closed, meeting airtight requirements. The stairway sealing door is located at the deck opening inside the main stairway of the target ship. There are cabin stairways above and below the opening, with railings on one side and a wall on the other. Decorative panels are installed around the area and at the bottom of the stairways. The equipment should be coordinated with the surrounding environment and be safe and reliable. The stairway sealing door has two states: closed and open. When closed, it achieves airtightness with the door frame; when open, the door is reliably fixed to the stairway. Due to limited operating space at the cabin stairway opening, a sealed, fully mechanically locked cabin door is required. Based on these conditions, a cabin door suitable for limited operating space, good sealing performance, and manual opening / closing with manual mechanical locking is designed.

[0003] In summary, the technical problem to be solved by the present invention is that the existing cabin doors are too large to be opened and closed when installed in a small space. Furthermore, the existing cabin doors will have gaps when installed on the door frame, resulting in poor airtightness. As a result, viruses can easily escape from the gaps and cause infection to people outside. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability of hatches to be opened in confined spaces and poor airtightness, and to propose a new type of sealed ship hatch.

[0005] This utility model is achieved through the following technical solution:

[0006] A marine airtight cabin door includes a cabin body, a door frame on the top surface of the cabin body, two hinges on one side of the door frame, a door body on the top of the cabin body, two hooks on the surface of the door body, an inclined ladder on the top surface of the cabin body, a self-locking winch on the bottom surface of the inclined ladder, three pulleys on one side of the self-locking winch, a retainer on one side of the three pulleys, two mounting brackets inside the retainer, two return springs between the two mounting brackets, an adjusting screw between the two return springs, a locking pin on one side of each of the two adjusting screws, a handwheel screw at the bottom of the inclined ladder, two locking handles on the top surface of the door body, twelve connecting bolts on the bottom surface of the door body, eight locking pins on one side of each of the twelve connecting bolts, twelve nuts on one side of each of the eight locking pins, and eight connecting brackets at the bottom of the door body.

[0007] Optionally, two hinges are provided on the door frame and are keyed to the door frame and door body. The surface of the door frame is provided with eight sealing strips, which are evenly distributed on the edge surface of the door frame.

[0008] Optionally, the two clamping lock handles are in a parallel state, and the two hooks are in a parallel state with the two clamping lock handles. One end of the two clamping lock handles passes through the door body, and the two connecting brackets are installed on the clamping lock handles.

[0009] Optionally, two of the connecting rods are mounted on the connecting frame, eight clamping pins are set on the top of the connecting rods, eight rotating shafts are provided on the bottom surface of the door body, and clamping pins are mounted on the rotating shafts. One end of each of the twelve connecting bolts passes through the connecting frame, the connecting rods and the clamping pins, and nuts are all mounted on the connecting bolts.

[0010] Optionally, the three pulleys are mounted on the inclined ladder, and the fastener is mounted on the inclined ladder with the fastener aligned with the hook.

[0011] Optionally, one end of the handwheel screw passes through the fixture, and two mounting brackets are vertically installed in the fixture in pairs, with the top two mounting brackets mounted on the handwheel screw, and both ends of the two adjusting screws mounted on the mounting brackets.

[0012] The beneficial effects of this utility model are:

[0013] The door frame is welded or screwed to the cabin opening, and the door is hinged to the cabin. The door opens and closes by moving along the hinges. When opening, the self-locking winch at the bottom of the ramp is turned. The winch retracts the chain, which drives the door upward through pulleys. Sealing strips are installed on the eight sides where the door meets the door frame. When the winch lowers the chain, the door descends and lands on the door frame to close. When closing, the locking handle is turned. When the locking handle is turned, it drives the locking pin, which presses against the bevel of the door frame to seal. This solves the problems of the hatch not being able to open in confined spaces and the poor airtightness. Attached Figure Description

[0014] Figure 1 A schematic diagram of an isometric structure according to the present invention is shown;

[0015] Figure 2 A bottom view schematic diagram of the structure according to the present invention is shown;

[0016] Figure 3 A front view structural schematic diagram according to the present invention is shown;

[0017] Figure 4 A partial cross-sectional view of the structure according to the present invention is shown.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Door body; 2. Slanted opening; 3. Door frame; 4. Connecting bolt; 5. Nut; 6. Clamping pin; 7. Connecting bracket; 8. Connecting rod; 9. Clamping lock handle; 10. Pulley; 11. Self-locking winch; 12. Hinge; 13. Hook; 14. Handwheel screw; 15. Return spring; 16. Fixture; 17. Adjusting screw; 18. Locking movable pin; 19. Mounting bracket; 20. Cabin; 21. Rotating shaft; 22. Sealing strip; 23. Inclined ladder. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0022] Example 1: As shown in the figure, this example provides a marine sealed hatch door, including a hatch body 20. A door frame 3 is provided on the top surface of the hatch body 20. Two hinges 12 are provided on one side of the door frame 3. A door body 1 is provided on the top of the hatch body 20. Two hooks 13 are provided on the surface of the door body 1. An inclined ladder 23 is provided on the top surface of the hatch body 20. A self-locking winch 11 is provided on the bottom surface of the inclined ladder 23. Three pulleys 10 are provided on one side of the self-locking winch 11. A retainer 16 is provided on one side of each pulley 10. Two mounting brackets 19 are provided inside the retainer 16. Two return springs 1 are provided between the two mounting brackets 19. 5. An adjusting screw 17 is provided in the middle of each of the two return springs 15. A locking pin 18 is provided on one side of each adjusting screw 17. A handwheel screw 14 is provided at the bottom of the inclined ladder 23. Two clamping lock handles 9 are provided on the top surface of the door body 1. Twelve connecting bolts 4 are provided on the bottom surface of the door body 1. Eight clamping pins 6 are provided on one side of each of the twelve connecting bolts 4. Twelve nuts 5 are provided on one side of each of the eight clamping pins 6. Eight connecting brackets 7 are provided at the bottom of the door body 1. Two hinges 12 are mounted on the door frame 3 and are keyed to the door frame 3 and the door body 1. Eight sealing strips 22 are provided on the surface of the door frame 3. Seals 22 are evenly distributed on the edge of the door frame 3. Two locking handles 9 are parallel, and two hooks 13 are parallel to the two locking handles 9. One end of each locking handle 9 passes through the door body 1, and two connecting brackets 7 are installed on the locking handles 9. Two connecting rods 8 are installed on the connecting brackets 7, and eight locking pins 6 are located on the top of the connecting rods 8. The bottom surface of the door body 1 has eight rotating shafts 21, and the locking pins 6 are installed on the rotating shafts 21. One end of each of the twelve connecting bolts 4 passes through the connecting brackets 7, connecting rods 8, and locking pins 6, and nuts 5 are installed on the connecting bolts 4. Three The pulley 10 is installed on the inclined ladder 23, the fixing device 16 is installed on the inclined ladder 23, and the fixing device 16 is installed in a position aligned with the hook 13. One end of the handwheel screw 14 passes through the fixing device 16. Two mounting brackets 19 are vertically set in the fixing device 16 in pairs, and the top two mounting brackets 19 are installed on the handwheel screw 14. Both ends of the two adjusting screws 17 are installed on the mounting brackets 19. The two locking pins 18 are installed on the mounting brackets 19 on the side away from the handwheel screw 14. The surface of the door frame 3 is provided with eight bevels 2, and the position of the bevels 2 is consistent with the position of the clamping pin 6.

[0023] Usage process:

[0024] The door frame 3 is welded or screwed to the opening of the cabin 20. The door 1 is installed on the cabin 20 by hinges 12. The door 1 is opened and closed by moving along the hinges 12. When the door is opened, the self-locking winch 11 at the bottom of the inclined ladder 23 can be rotated. The self-locking winch 11 uses the power generated by the motor to convert the high-speed rotation of the motor into a low-speed rotation suitable for winding the rope through the cooperation of gears and reducers. The rotational power is transmitted to the rope or wire rope of a certain length wound on the drum. When the motor drives the drum to rotate, the rope or wire rope is wound up. Due to the end of the chain... The chain is installed on the door body 1, and the chain will drive the door body 1 to open upwards through the pulley 10. After opening, the hook 13 on the top surface of the door body 1 can be engaged into the retainer 16. The retainer 16 is installed on the bottom surface of the inclined ladder 23. When the hook 13 enters the retainer 16, the hook 13 will knock open the locking pin 18. The locking pin 18 will move inward through the adjusting screw 17 to allow the hook 13 to enter the retainer 16. After it is fully engaged, the return spring 15 will push the locking pin 18 again, so that the locking pin 18 is engaged with the hook 13 to complete the fixation. When unlocking, the handwheel screw 14 can be turned. When the screw 14 rotates, it causes the entire locking pin 18 to move to one side, disengaging the locking pin 18 from the hook 13. When the hook 13 disengages from the retainer 16, the chain can be lowered by the self-locking winch 11. As the chain falls, the door 1 also descends, landing on the door frame 3 to close the door. Since the sealing strip 22 is installed on the eight sides where the door 1 and the door frame 3 meet, the locking handle 9 can then be rotated. One end of the locking handle 9 passes through the door 1, and the bottom surfaces of both locking handles 9 are mounted on the connecting frame 7. When the locking handle 9 rotates, it drives the connecting frame 7. One end is mounted on the connecting rod 8 via connecting bolt 4, so that the connecting rod 8 will also rotate with the clamping lock handle 9. There are eight rotating shafts 21 on the bottom surface of the door body 1, and each rotating shaft 21 is equipped with a clamping pin 6. The clamping pin 6 is mounted on the connecting rod 8 via connecting bolt 4. When the connecting rod 8 rotates, it will also drive the clamping pin 6 to rotate. When the clamping pin 6 rotates, one end of the clamping pin 6 will abut against the inclined opening 2 of the door frame 3 to complete the clamping and sealing. The self-locking winch 11 adopts electric and manual dual modes. The manual mechanical operation is small in space, simple to operate, and has good reliability. It can provide secondary locking protection for the door.

[0025] Example 2: As shown in the figure, this example provides a marine airtight cabin door. A locking pin 18 can be added inside the retainer 16 to realize two locking mechanisms in the open state. When the door body 1 rises, the hook 13 will knock open the locking pin 18. When the hook 13 enters the retainer 16, the hook 13 will knock open the locking pin 18. The locking pin 18 will move inward through the adjusting screw 17 to allow the hook 13 to enter the retainer 16. When it is fully in, the return spring 15 will push the locking pin 18 again, so that the locking pin 18 is locked onto the hook 13. When unlocking, the handwheel screw 14 can be turned. When the handwheel screw 14 is turned, the entire locking pin 18 will move to one side to disengage the locking pin 18 from the hook 13. When the hook 13 is disengaged from the retainer 16.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A marine sealed hatch door, comprising a hull (20), characterized in that: The top surface of the cabin (20) is provided with a door frame (3), and two hinges (12) are provided on one side of the door frame (3). The top of the cabin (20) is provided with a door body (1), and the surface of the door body (1) is provided with two hooks (13). The top surface of the cabin (20) is provided with an inclined ladder (23), and the bottom surface of the inclined ladder (23) is provided with a self-locking winch (11). One side of the self-locking winch (11) is provided with three pulleys (10), and one side of the three pulleys (10) is provided with a fixing device (16). The inside of the fixing device (16) is provided with two mounting brackets (19). The two mounting brackets (19) are... Two return springs (15) are provided in the middle, and an adjusting screw (17) is provided in the middle of each of the two return springs (15). A locking pin (18) is provided on one side of each of the two adjusting screws (17). A handwheel screw (14) is provided at the bottom of the inclined ladder (23). Two clamping lock handles (9) are provided on the top surface of the door body (1). Twelve connecting bolts (4) are provided on the bottom surface of the door body (1). Eight clamping pins (6) are provided on one side of each of the twelve connecting bolts (4). Twelve nuts (5) are provided on one side of each of the eight clamping pins (6). Eight connecting brackets (7) are provided at the bottom of the door body (1).

2. The marine airtight cabin door according to claim 1, characterized in that: Two hinges (12) are provided on the door frame (3), and the hinges (12) are keyed to the door frame (3) and the door body (1). The surface of the door frame (3) is provided with eight sealing strips (22), and the sealing strips (22) are evenly provided on the side surface of the door frame (3).

3. A marine airtight cabin door according to claim 2, characterized in that: The two clamping handles (9) are in a parallel state, and the two hooks (13) are in a parallel state with the two clamping handles (9). One end of the two clamping handles (9) passes through the door body (1), and the two connecting brackets (7) are installed on the clamping handles (9).

4. A marine airtight cabin door according to claim 3, characterized in that: Two connecting rods (8) are installed on the connecting frame (7), eight clamping pins (6) are set on the top of the connecting rods (8), the bottom surface of the door body (1) is provided with eight rotating shafts (21), and the clamping pins (6) are installed on the rotating shafts (21). One end of the twelve connecting bolts (4) passes through the connecting frame (7), the connecting rods (8) and the clamping pins (6), and the nuts (5) are all installed on the connecting bolts (4).

5. A marine airtight cabin door according to claim 1, characterized in that: The three pulleys (10) are mounted on the inclined ladder (23), and the fastener (16) is mounted on the inclined ladder (23), with the fastener (16) positioned so that it is aligned with the hook (13).

6. A marine airtight cabin door according to claim 5, characterized in that: One end of the handwheel screw (14) is inserted into the fixture (16). Two mounting brackets (19) are vertically set in the fixture (16) in pairs. The top two mounting brackets (19) are mounted on the handwheel screw (14), and both ends of the two adjusting screws (17) are mounted on the mounting brackets (19).

7. A marine airtight cabin door according to claim 6, characterized in that: Both locking pins (18) are mounted on a mounting bracket (19) on the side away from the handwheel screw (14). The surface of the door frame (3) is provided with eight bevels (2), and the bevels (2) are positioned in the same position as the clamping pin (6).

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