A modular automatic hatch

Abstract

The present invention discloses a modular automatic hatch, comprising a hatch cover module, a cabin frame module, a linkage module and a drainage module; the hatch cover module comprises a cover plate, a reinforcing rib, a side plate and a hinged seat; the cabin frame module comprises a door frame, a fixing platform, a watertight strip and a sealing belt; the linkage module comprises an active arm, a driven arm, a main fixed seat, a slave fixed seat, a hydraulic cylinder, a synchronous valve, a hydraulic pipe, a limit switch, an angle sensor and a processor; the cabin frame module is installed at the entrance of a hull cabin, the hatch cover module is connected to the cabin frame module through a linkage module, and when the linkage module is actuated, the hatch cover module is driven to actuate to realize automatic opening or closing of the hatch door; the drainage module comprises a water pump, a drainage pipe and a float switch, which is mounted on one side of the cabin frame module, and can timely drain the accumulated water in the hull cabin. The present invention has a simple structure, can block waves from entering the cabin when closed, can timely drain the accumulated water, and is suitable for protecting the hull waterfront cabin.

Description

Technical Field

[0001] The invention relates to the field of mechanical equipment, in particular to a modular automatic hatch which is suitable for watertight protection of the wave-facing surface of a hull cabin in water areas. Background Art

[0002] Floating platforms in water, whether traditional ships or intelligent unmanned ships, are easily affected by waves and will experience six degrees of freedom shaking, including sway, surge, bow pitch, roll, pitch and heave. At the same time, the repeated shaking during the movement of the ship has a great impact on the hatch equipment installed on the ship, especially affecting the watertight characteristics of the entire hull.

[0003] Traditional hatches use inward swing doors, flat doors or revolving doors, which need to be opened or closed manually. They have low intelligence, low closing accuracy, poor self-adjustment ability, and poor blocking effect on the wave-facing water body. Specifically, traditional hatches are installed by mounting door pins, with low sealing degree and easy deformation. They need to be corrected and adjusted regularly and even replaced, which greatly affects the maintenance of the equipment in the cabin. Even if the hatch is closed, a large amount of water mist and waves will penetrate into the cabin; especially on the wave-facing surface of unmanned ships, when running at high speed, the waves outside the ship are easy to splash into the open cabin, soaking the equipment in the cabin, and it is difficult to automatically discharge the water that has penetrated into the ship.

[0004] In view of this, overcoming the defects of the above-mentioned prior art is an urgent problem to be solved in the field of this technology. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the traditional hatches of the hull platform in the water area are difficult to seal and close automatically, resulting in the backflow of seawater or water mist into the cabin, especially the problem that the wavefront cabin will continue to be flooded after the hatch is opened.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a modular automatic hatch, including a hatch cover module, a cabin frame module and a linkage module; the cabin frame module can be installed at the entrance of the hull cabin, and the hatch cover module can be connected to the cabin frame module through the linkage module. When the linkage module is actuated, it drives the hatch cover module to realize automatic opening or closing of the hatch door.

[0007] Furthermore, the hatch cover module includes an upper cover plate, a lower cover plate, a side plate and a hinge seat; the side plates are welded around the upper cover plate and the lower cover plate to form a sealed rectangular parallelepiped, wherein the upper cover plate and the lower cover plate have the same size; two hinge seats are respectively arranged at both ends of the bottom surface of the lower cover plate, wherein the inner side is the first hinge seat, and the outer side is the second hinge seat, and the first hinge seat and the second hinge seat are of the same model and are arranged in parallel with each other.

[0008] The cabin frame module includes a door frame and a fixing platform; the outer frame size of the door frame is the same as the frame size of the lower cover plate, so that the cabin cover module can be matched with the door frame; the fixing platform is arranged at both ends of the door frame, and the door frame can be fixed at the entrance of the hull cabin through the fixing platform, specifically, the door frame is first placed in a designated position, and then the fixing platform is connected to the hull by bolts.

[0009] The linkage module includes an active arm, a passive arm, a main fixed seat, a slave fixed seat, a hydraulic cylinder, a synchronization valve, a hydraulic pipe, a limit switch, an angle sensor and a processor; a group of main fixed seats and slave fixed seats are respectively arranged at both ends of the bottom of the cabin frame module, and a hydraulic cylinder is arranged on each main fixed seat, for a total of two hydraulic cylinders, one end of the active arm is connected to the output shaft of the hydraulic cylinder, and the other end is connected to the first hinge seat, one end of the passive arm is connected to the slave fixed seat, and the other end is connected to the second hinge seat; specifically, the spacing between the main fixed seat and the slave fixed seat is the same as the spacing between the first hinge seat and the second hinge seat; the action lengths of the active arm and the slave fixed arm are the same, and a parallelogram linkage body is formed between the active arm and the passive arm.

[0010] The synchronization valve is installed at the middle part of the lower end of the door beam on one side of the door frame, and the hydraulic pipe includes an inlet pipe and an outlet pipe, wherein the inlet pipe is arranged at the inlet of the synchronization valve, one end of the outlet pipe is connected to the outlet of the synchronization valve, and the other end is connected to the inlet of the hydraulic cylinder; specifically, the inlet pipe introduces high-pressure oil into the synchronization valve, and the synchronization valve sends the high-pressure oil to the hydraulic cylinders on both sides through the outlet pipe in a balanced manner, so as to realize synchronous and equal-intensity movements of the hydraulic cylinders on both sides.

[0011] The limit switch is installed on the inner side of the door frame corresponding to the position of the active arm, and can monitor whether the active arm has reached the allowed limit position; the angle sensor is hoisted under the door beam of the door frame, and its monitoring end is connected to the output shaft of the hydraulic cylinder, and can monitor the rotation angle of the hydraulic cylinder.

[0012] The processor is connected to the synchronization valve, limit switch and angle sensor, and monitors the working condition information of the synchronization valve, limit switch and angle sensor. Specifically, the processor controls the action of the synchronization valve according to the third-party instruction to realize the rotation of the hydraulic cylinder at the specified angle, direction and speed; when the active arm presses the limit switch, the information is fed back to the processor, the processor closes the synchronization valve, and the hydraulic cylinder is self-holding; the angle sensor monitors the rotation condition of the hydraulic cylinder output shaft and transmits the monitoring data to the processor.

[0013] Furthermore, the hatch cover module also includes reinforcing ribs, which are welded between the upper cover plate and the lower cover plate to form an internally reinforced hatch cover module, thereby preventing the hatch cover module from being flattened or deformed.

[0014] Furthermore, the structure of the reinforcing rib is a cross-shaped structure, which can effectively increase the supporting area.

[0015] Furthermore, the cabin frame module also includes a sealing belt and a watertight strip; the sealing belt is arranged on the outer side of the door frame and the bottom end of the fixed platform, so as to facilitate external sealing when the cabin frame module is embedded in the entrance of the hull cabin, thereby preventing water from entering the hull cabin from the edge of the cabin frame module; the watertight strip is arranged on the top surface of the door frame beam, and the lower cover plate is provided with a corresponding receiving groove. When the hatch cover module is closed on the door frame, the watertight strip is inserted into the receiving groove to achieve contact surface sealing, which can effectively prevent water mist from entering the hull cabin.

[0016] Furthermore, the hatch cover module also includes a drainage module; the drainage module includes a water pump, a drainage pipe and a float switch; the water pump is installed on one side of the fixed platform, and the drainage pipe is matched with the water pump; the water inlet end of the drainage pipe vertically downward contacts the bottom water collection point of the hull cabin, and the water outlet end of the drainage pipe passes through the fixed platform and extends out of the hull, so that the accumulated water at the bottom of the hull cabin can be discharged from the hull, which can promptly solve the problem of water accumulation after water enters the cabin when the hatch cover module is opened.

[0017] Furthermore, the hatch cover module, door frame, fixing platform, active arm, passive arm, main fixed seat, passive fixed seat and reinforcing ribs are all made of aluminum alloy.

[0018] Furthermore, the sealing belt and the watertight strip are made of rubber material.

[0019] Furthermore, the processor receives third-party control instructions through a CAN port or a COM port.

[0020] Furthermore, a solenoid valve connected to the processor is provided at the outlet of the synchronization valve, and a plurality of pressure sensors connected to the processor are provided. The pressure sensors are evenly distributed and installed in the receiving groove to monitor the sealing pressure of the watertight strip on the receiving groove on the hatch cover module. When the sealing pressure of the watertight strip on the single-end receiving groove on the hatch cover module is lower than a specified threshold, it is defined as an abnormal end. The solenoid valve at the abnormal end is opened and the solenoid valve at the normal end is closed, thereby driving the hydraulic cylinder at the abnormal end to operate and restore the sealing pressure of the watertight strip on the receiving groove to a normal level.

[0021] Compared with the prior art, the present invention has the following advantages.

[0022] 1. The hatch cover module can be automatically opened or closed by setting a swing cylinder. The opening and closing positions can be precisely controlled so that the hatch cover module maintains the sealing strength of the door frame.

[0023] 2. By setting up solenoid valves and pressure sensors, the sealing pressure of the watertight strip on the receiving groove on the hatch cover module is monitored. When the sealing pressure of the watertight strip on the single-end receiving groove on the hatch cover module is lower than the specified threshold, the solenoid valve on the abnormal end is opened and the solenoid valve on the normal end is closed, thereby driving the hydraulic cylinder on the abnormal end to operate and automatically restore the sealing pressure of the watertight strip on the receiving groove to a normal level.

[0024] 3. The door frame is sealed by setting watertight strips. When the door is closed, it can effectively isolate seawater splashing or water mist from invading the cabin.

[0025] 4. Improve mechanical strength by setting reinforcing ribs in the middle of the hatch cover module.

[0026] 5. When the hatch cover module is opened, water can easily flow into the cabin from the wave-facing surface. The water in the cabin can be removed in time by setting up a drainage module.

[0027] 6. The synchronous valve is set to control the synchronous and coordinated movement of the two side hydraulic cylinders, and the active arm and the driven arm form a parallel four-bar linkage to ensure that the door is evenly stressed during movement, reduce deformation, and increase the service life of the door.

[0028] 7. The modular design method of separating the hatch and the hull is adopted to ensure that the hatch will not be affected during the welding process of the hull, avoid the risk of welding deformation, and facilitate debugging, installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a top perspective view of the hatch cover module in the open state in an embodiment of the present invention.

[0031] Figure 2 This is a diagram of the equipment structure of the module components in an embodiment of the present invention.

[0032] Figure 3 This is a bottom-up stereoscopic view of the hatch cover module in the open state according to an embodiment of the present invention.

[0033] Figure 4 It is a bottom perspective view of a hatch cover module in an embodiment of the present invention.

[0034] Figure 5 This is an exploded view of a hatch cover module in an embodiment of the present invention.

[0035] Figure 6 It is a top perspective view of the hatch cover module in the closed state in an embodiment of the present invention.

[0036] Figure 7 This is an exploded top view of a cabin frame module in an embodiment of the present invention.

[0037] Figure 8 It is a stereoscopic diagram of the synchronization valve and the hydraulic pipe in the embodiment of the present invention.

[0038] Fig. 9 It is a stereoscopic diagram of the synchronization valve and the hydraulic pipe in the embodiment of the present invention.

[0039] In the figure: 1-hatch cover module; 2-cabin frame module; 3-linkage module; 4-drainage module; 101-upper cover plate; 102-lower cover plate; 103-side plate; 104-hinge seat; 105-reinforcement rib; 106-accommodation groove; 201-door frame; 202-fixed platform; 203-sealing belt; 204-watertight strip; 301-active arm; 302-active arm; 303-active fixed seat; 304-active fixed seat; 305-hydraulic cylinder; 306-synchronous valve; 307-hydraulic pipe; 308-limit switch; 309-angle sensor; 310-processor; 311-inlet pipe; 312-outlet pipe; 401-water pump; 402-drainage pipe; 403-float switch. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0042] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0043] like Figure 1-9 As shown, a modular automatic hatch comprises a hatch cover module 1, a cabin frame module 2 and a linkage module 3; the cabin frame module 2 is installed at the entrance of the hull cabin, and the hatch cover module 1 is connected to the cabin frame module 2 through the linkage module 3. When the linkage module 3 is actuated, the hatch cover module 1 is driven to actuate to realize automatic opening or closing of the hatch door.

[0044] In this embodiment, the hatch cover module 1 includes an upper cover plate 101, a lower cover plate 102, a side plate 103 and a hinge seat 104; the side plates 103 are welded around the upper cover plate 101 and the lower cover plate 102 to form a sealed rectangular parallelepiped, wherein the upper cover plate 101 and the lower cover plate 102 have the same size, 110 cm long, 60 cm wide, and 1 cm thick, and the outer size of the side plate 103 is 110 cm long, 60 cm wide, and 3 cm thick; two hinge seats 104 are respectively arranged at both ends of the bottom surface of the lower cover plate 102, wherein the inner side is the first hinge seat 104, and the outer side is the second hinge seat 104, and the first hinge seat 104 and the second hinge seat 104 are of the same model and are arranged in parallel with each other.

[0045] The cabin frame module 2 includes a door frame 201 and a fixing platform 202; the outer frame size of the door frame 201 is the same as the frame size of the lower cover plate 102, which is 110 cm long and 60 cm wide, so that the hatch cover module 1 can be matched with the door frame 201; the fixing platform 202 is arranged at both ends of the door frame 201, and the door frame 201 can be fixed at the entrance of the hull cabin through the fixing platform 202. The fixing platform 202 has a length of 60 cm, a width of 10 cm, and a thickness of 10 cm. When the hatch cover module 1 is completely covered on the door frame 201, the top surface of the upper cover plate 101 is flush with the top surface of the fixing platform 202; specifically, the door frame 201 is first placed in a designated position, and then the fixing platform 202 is connected to the hull by six bolts.

[0046] The linkage module 3 includes an active arm 301 , a passive arm 302 , a primary fixed seat 303 , a secondary fixed seat 304 , a hydraulic cylinder 305 , a synchronous valve 306 , a hydraulic pipe 307 , a limit switch 308 , an angle sensor 309 and a processor 310 .

[0047] A group of main fixed seats 303 and slave fixed seats 304 are respectively arranged at both ends of the bottom of the cabin frame module 2, and a DES140-99 hydraulic cylinder 305 is arranged on each main fixed seat 303, with a total of two rotatable hydraulic cylinders 305, one end of the active arm 301 is connected to the output shaft of the hydraulic cylinder 305, and the other end is connected to the first hinge seat 104, one end of the driven arm 302 is connected to the slave fixed seat 304, and the other end is connected to the second hinge seat 104; specifically, the spacing between the main fixed seat 303 and the slave fixed seat 304 is 10 cm, and the spacing between the first hinge seat and the second hinge seat is 10 cm; the action lengths of the active arm 301 and the slave fixed arm are the same, both of which are 30 cm, and a parallelogram linkage body is formed between the active arm 301 and the driven arm 302.

[0048] The synchronization valve 306 is installed at the middle part of the lower end of the door beam on one side of the door frame 201, and the hydraulic pipe 307 includes an inlet pipe 311 and an outlet pipe 312, wherein the inlet pipe 311 is arranged at the inlet of the synchronization valve 306, one end of the outlet pipe 312 is connected to the outlet of the synchronization valve 306, and the other end is connected to the inlet of the hydraulic cylinder 305; specifically, the inlet pipe 311 introduces the high-pressure oil output by the oil pump in the hull into the synchronization valve 306, and the synchronization valve 306 sends the high-pressure oil to the hydraulic cylinders 305 on both sides through the outlet pipe 312 in a balanced manner, so as to realize the synchronous and equal-intensity movement of the hydraulic cylinders 305 on both sides, and ensure that the hydraulic cylinders 305 move the hatch cover module 1 smoothly and in parallel, wherein the inner diameter of the hydraulic cylinder 305 is 1 cm.

[0049] The limit switch 308 is installed on the inner side of the door frame 201 corresponding to the position of the active arm 301, and can monitor whether the active arm 301 has reached the allowed limit position; the angle sensor 309 is a DWQT type ±10V voltage output angle sensor 309, which is hoisted under the door beam of the door frame 201, and its monitoring end is connected to the output shaft of the hydraulic cylinder 305, and can monitor the rotation angle of the hydraulic cylinder 305.

[0050] The processor 310 is a control box composed of a SIM32F series CPU processor 310 as the core, which is connected to the synchronization valve 306, the limit switch 308 and the angle sensor 309 to monitor the working condition information of the synchronization valve 306, the limit switch 308 and the angle sensor 309. Specifically, the processor 310 controls the action of the synchronization valve 306 according to the third-party instruction to realize the rotation of the hydraulic cylinder 305 at a specified angle, direction and speed; when the active arm 301 translates the hatch cover module 1 by 55 cm and the hatch cover module 1 is completely moved to the side of the door frame 201 in the horizontal direction, the active arm 301 touches the limit switch 308, and the limit switch 308 feeds back the pressure information to the processor 310, and the processor 310 closes the synchronization valve 306, the hydraulic cylinder 305 is self-retained, and the hatch cover module 1 stops further translation; the angle sensor 309 monitors the rotation condition of the output shaft of the hydraulic cylinder 305, and transmits the monitoring data to the processor 310, so as to determine the real-time state of the hatch module being opened or closed.

[0051] In this embodiment, the hatch cover module 1 also includes a cross-shaped reinforcement rib 105, and the reinforcement rib 105 is welded between the upper cover plate 101 and the lower cover plate 102 to form an internally reinforced hatch cover module 1, which can prevent the hatch cover module 1 from being flattened or deformed. In particular, the use of the cross-shaped reinforcement rib 105 can effectively increase the support area.

[0052] In this embodiment, the cabin frame module 2 also includes a sealing belt 203 and a watertight strip 204, which are made of rubber material; the sealing belt 203 is 4 cm high and 3 mm thick, and is arranged on the outer side of the bottom end of the door frame 201 and the fixing platform 202, so as to facilitate external sealing when the cabin frame module 2 is embedded in the entrance of the hull cabin, and prevent water from entering the cabin of the hull from the edge of the cabin frame module 2; the watertight strip 204 includes a trapezoidal bottom and an arc-shaped top, wherein the trapezoidal bottom is embedded in the top surface of the door beam of the door frame 201, and the arc-shaped top protrudes upward by 6 mm; the lower cover plate 102 is provided with a corresponding receiving groove 106, and the depth of the receiving groove 106 is 4 mm, which is less than the protruding height of the arc-shaped top. When the hatch cover module 1 is closed on the door frame 201, the watertight strip 2042 mm can be squeezed downward to ensure that after the watertight strip 204 is inserted into the receiving groove 106, all contact surfaces are sealed, which can effectively prevent water mist from entering the hull cabin.

[0053] In this embodiment, the hatch cover module 1 also includes a drainage module 4; the drainage module 4 includes a water pump 401, a drainage pipe 402 and a float switch 403; the water pump 401 is installed on one side of the fixed platform 202, and the drainage pipe 402 is matched with the water pump 401; the water inlet end of the drainage pipe 402 vertically downward contacts the bottom water collection point of the hull cabin, and the water outlet end of the drainage pipe 402 passes through the fixed platform 202 and extends out of the hull, so that the accumulated water at the bottom of the hull cabin can be discharged from the hull, which can promptly solve the problem of water accumulation after water enters the cabin when the hatch cover module 1 is opened.

[0054] In this embodiment, the hatch cover module 1, the door frame 201, the fixing platform 202, the active arm 301, the passive arm 302, the active seat 303, the passive seat 304 and the reinforcing ribs 105 are all made of aluminum alloy.

[0055] In this embodiment, the processor 310 receives third-party control instructions through a CAN port or a COM port.

[0056] In this embodiment, a solenoid valve connected to the processor 310 is provided at the outlet of the synchronization valve 306, and four pressure sensors connected to the processor 310 are provided. The pressure sensors are installed at the vertices in the receiving groove 106 to monitor the sealing pressure of the watertight strip 204 on the receiving groove 106 on the hatch cover module 1. When the sealing pressure of the watertight strip 204 on the single-end receiving groove 106 on the hatch cover module 1 is lower than the specified threshold value of 200 Newtons, it is defined as an abnormal end. The abnormal end solenoid valve is started to close the normal end solenoid valve, thereby driving the abnormal end hydraulic cylinder 305 to operate, so that the sealing pressure of the watertight strip 204 on the receiving groove 106 is restored to a normal level, wherein the normal level is 200 Newtons to 1000 Newtons. Specifically, when the sealing pressure at one end of the hatch cover module 1 is abnormal, only the corresponding end hydraulic cylinder 305 is driven to operate. When the sealing pressure on one side is abnormal, the hydraulic cylinders 305 at both ends are driven to operate at the same time to maintain the normal sealing pressure of the entire watertight strip 204 on the receiving groove 106.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular automatic door, characterized in that: It comprises a hatch cover module (1), a cabin frame module (2) and a linkage module (3); the cabin frame module (2) is installed at the entrance of a hull cabin, the hatch cover module (1) is connected to the cabin frame module (2) via the linkage module (3), and when the linkage module (3) is actuated, the hatch cover module (1) is driven to actuate, thereby realizing automatic opening or closing of the hatch door; The hatch cover module (1) comprises an upper cover plate (101), a lower cover plate (102), a side plate (103) and a hinge seat (104); the side plate (103) is welded around the upper cover plate (101) and the lower cover plate (102) to form a sealed rectangular parallelepiped, wherein the upper cover plate (101) and the lower cover plate (102) have the same size; two hinge seats (104) are respectively arranged at both ends of the bottom surface of the lower cover plate (102), wherein the inner side is a first hinge seat and the outer side is a second hinge seat; the cabin frame module (2) comprises a door frame (201) and a fixing platform (202); the door frame (201) The outer frame size of the lower cover plate (102) is the same as the frame size of the lower cover plate (102); the fixing platform (202) is arranged at both ends of the door frame (201); the linkage module (3) comprises an active arm (301), a passive arm (302), a main fixed seat (303), a secondary fixed seat (304), a hydraulic cylinder (305), a synchronous valve (306), a hydraulic pipe (307), a limit switch (308), an angle sensor (309) and a processor (310); a group of main fixed seats (303) and secondary fixed seats (304) are respectively arranged at both ends of the bottom of the cabin frame module (2), and a hydraulic cylinder ( 305), one end of the active arm (301) is connected to the output shaft of the hydraulic cylinder (305), and the other end is connected to the first hinge seat; one end of the driven arm (302) is connected to the slave seat (304), and the other end is connected to the second hinge seat; a parallelogram linkage is formed between the active arm (301) and the driven arm (302); the synchronous valve (306) is installed at the middle part of the lower end of the door beam on one side of the door frame (201); the hydraulic pipe (307) includes an inlet pipe (311) and an outlet pipe (312), wherein the inlet pipe (311) is arranged at the inlet of the synchronous valve (306), One end of the outlet pipe (312) is connected to the outlet of the synchronization valve (306), and the other end is connected to the inlet of the hydraulic cylinder (305); the limit switch (308) is installed on the inner side of the door frame (201) corresponding to the position of the active arm (301); the angle sensor (309) is hoisted under the door beam of the door frame (201), and its monitoring end is connected to the output shaft of the hydraulic cylinder (305); the processor (310) is connected to the synchronization valve (306), the limit switch (308) and the angle sensor (309), and monitors the working condition information of the synchronization valve (306), the limit switch (308) and the angle sensor (309); The cabin frame module (2) further comprises a sealing strip (203) and a watertight strip (204); the sealing strip (203) is arranged on the outer sides of the bottom ends of the door frame (201) and the fixing platform (202); the watertight strip (204) is arranged on the top surface of the door beam of the door frame (201), and the lower cover plate (102) is provided with a corresponding receiving groove (106); The hatch cover module (1) further comprises a drainage module (4); the drainage module (4) comprises a water pump (401), a drainage pipe (402) and a float switch (403); the water pump (401) is installed on one side of the fixing platform (202), and the drainage pipe (402) is matched with the water pump (401); the water inlet end of the drainage pipe (402) vertically downward contacts the bottom water collection point of the hull cabin, and the water outlet end of the drainage pipe (402) passes through the fixing platform (202) and extends out of the hull, so as to discharge the accumulated water at the bottom of the hull cabin out of the hull; A solenoid valve connected to a processor (310) is arranged at the outlet of the synchronization valve (306), and a plurality of pressure sensors connected to the processor (310) are arranged. The pressure sensors are evenly distributed and installed in the receiving groove (106) to monitor the sealing pressure of the watertight strip (204) on the receiving groove (106) on the hatch cover module (1). When the sealing pressure of the watertight strip (204) on the single-end receiving groove (106) on the hatch cover module (1) is lower than a specified threshold value 2, it is defined as an abnormal end. The abnormal end solenoid valve is started to close the normal end solenoid valve, thereby driving the abnormal end hydraulic cylinder (305) to operate, so that the sealing pressure of the watertight strip (204) on the receiving groove (106) is restored to a normal level.

2. The automatic hatch according to claim 1, characterized in that: The hatch cover module (1) further comprises a reinforcing rib (105), wherein the reinforcing rib (105) is welded between the upper cover plate (101) and the lower cover plate (102).

3. The automatic hatch according to claim 2, characterized in that: The reinforcing rib (105) has a structure of a cross.

4. The automatic hatch according to claim 3, characterized in that: The hatch cover module (1), the door frame (201), the fixing platform (202), the active arm (301), the passive arm (302), the active seat (303), the passive seat (304) and the reinforcing ribs (105) are all made of aluminum alloy material.

5. The automatic hatch according to claim 4, characterized in that: The sealing strip (203) and the watertight strip (204) are made of rubber material.

6. The automatic hatch according to claim 5, characterized in that: The processor (310) receives a third-party control instruction via a CAN port or a COM port.

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