Marine-stabilized watertight hydraulic door

Abstract

The present invention relates to the technical field of watertight doors, specifically a marine stable watertight hydraulic door, which includes a door panel and a door frame hinged to one end of the door panel. A square tube frame is fixed on one side of the door panel. After the door is closed, the square tube frame and the door frame are in sealing contact, and a plurality of bolt fixtures are connected between the door frame and the square tube frame. The bolt fixtures are arranged on the square tube frame and elastically snap into the grooves opened on the door frame. A bolt rack is in contact with the side of the door frame facing away from the square tube frame. The watertight door of the present invention has a normal mode, a watertight mode, and a fireproof mode. In the fireproof mode, the watertight door cannot be easily opened, and the crew cannot push the handle L bar without knowing the fire situation. In this way, the crew can know that there is a fire on the other side of the door and avoid the safety problem of the fire spreading outward after opening the door.

Description

Technical Field

[0001] The present invention relates to the technical field of watertight doors, and specifically to a marine stable watertight hydraulic door. Background Art

[0002] A watertight door is a door with watertightness installed on a watertight bulkhead. Commonly used are two types: hinged watertight doors and sliding watertight doors, generally metal doors. The former has a light structure and is easy to open and close. The latter is used in places with requirements for water pressure resistance and limited space. It has a firm structure but requires a control system. Regarding the grade, installation location, quantity, tightness requirements, transmission mechanism control method, and usage conditions of watertight doors, there are corresponding regulations in shipbuilding codes and relevant international conventions. For the hinged fire watertight doors in the prior art, how to improve and develop them to further enhance their fire safety performance is a technical problem. After the watertight door is closed, the crew cannot know the fire situation on the other side of the watertight door. Once the watertight door is opened when the fire is severe, the fire will spread outward through the watertight door. Based on such considerations, the present invention provides a marine stable watertight hydraulic door. Summary of the Invention

[0003] The purpose of the present invention is to provide a marine stable watertight hydraulic door to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A marine stable watertight hydraulic door includes a door panel and a door frame hinged to one end of the door panel. A square tube frame is fixed on one side of the door panel. After the door is closed, the square tube frame and the door frame are in sealed contact, and a plurality of door bolt clamps are connected between the door frame and the square tube frame. The door bolt clamps are arranged on the square tube frame and elastically snap into grooves opened on the door frame. On the side of the door frame opposite to the square tube frame, there is a door bolt holder in contact, and the door bolt holder is fixedly connected to the door panel through a plurality of thick shafts arranged thereon. The door bolt holder and the square tube frame cooperate to clamp the door frame. A first shaft passes through the middle of the door bolt holder. One end of the first shaft is fixed with a handle disc, and the other end is in contact with and drives a fire prevention member for fire braking. A gear disc is fixedly sleeved on the first shaft. A handle L rod is arranged on the door panel. The shaft rod on the handle L rod is movably sleeved in a through hole opened on the door panel, and a swing plate is fixed at one end of the shaft rod of the handle L rod. An arc-shaped rack is arranged on the swing plate and is in meshing transmission connection with the gear disc.

[0005] Preferably, the fire prevention member includes a temperature measuring part for fire detection, a force generating part, and a force concentrating part for collecting swing power. The temperature measuring part and the force generating part are in contact transmission, and the force concentrating part and the force generating part are in transmission connection. When a fire occurs, the force generating part drives the first shaft.

[0006] Preferably, the temperature measuring part includes a binding ring, a T-shaped plate, and a deformation rod that expands and contracts due to heat. One end of the T-shaped plate is fixed to the door panel, and a row of binding rings is fixed on the T-shaped plate. The deformation rod passes through the binding rings. One end of the deformation rod contacts and drives the force applying part, and the other end of the deformation rod is supported by an L-shaped hook column arranged on the T-shaped plate.

[0007] Preferably, the force applying part includes an integrated frame, a shaft group, a stopper, a spring winding disc, and a brake head. One end of the shaft group is in transmission connection with the force concentrating part, and the other end is in transmission connection with the spring winding disc. A brake head is in transmission connection with one side of the middle part of the spring winding disc. The stopper controls the brake head by means of clamping.

[0008] Preferably, the stopper includes an L-shaped middle control plate, a straight cylinder, and a pulling-back elastic sheet. One end of the integrated frame is fixed to the door panel, the straight cylinder is fixed to the integrated frame, the L-shaped middle control plate slides through the inner hole of the straight cylinder. One end of the L-shaped middle control plate contacts the end of the deformation rod, the other end of the L-shaped middle control plate clamps the brake head, one end of the pulling-back elastic sheet is fixed to the straight cylinder, and the other end is fixed to the L-shaped middle control plate.

[0009] Preferably, the shaft group includes a worm, a unit elastic sheet, a unit L-shaped column, and a bottom shaft. A worm is arranged at one end of the bottom shaft. A plurality of unit L-shaped columns are evenly arranged in a ring between the bottom shaft and the worm. A unit elastic sheet is fixed on each unit L-shaped column. The unit elastic sheet is clamped into a plurality of arc-shaped grooves evenly arranged on the outer side wall of the worm. One end of the unit L-shaped column is fixed to the bottom shaft. The worm and the bottom shaft are respectively movably sleeved in two through holes opened on the integrated frame.

[0010] Preferably, the force concentrating part includes a sector-shaped heavy plate, a one-way bearing, and a cross shaft. One end of the cross shaft is in meshing transmission connection with a bevel gear fixed to the bottom end of the bottom shaft through a fixed bevel gear. A one-way bearing is fixedly sleeved on the outside of the cross shaft. The one-way bearing is fixedly embedded in a through hole opened on the sector-shaped heavy plate. The cross shaft is movably sleeved in a bottom hole opened on the integrated frame.

[0011] Preferably, the spring winding disc includes an outer gear ring, unit arc plates, a rail cylinder, and a spring. The spring is connected between the outer gear ring and the brake head. A plurality of unit arc plates are evenly and fixedly arranged in a ring on one side of the outer gear ring. The unit arc plates are distributed in the rail cylinder. The rail cylinder slides through arc-shaped column grooves opened on the unit arc plates. The rail cylinder is fixed to the integrated frame. The spiral teeth on the worm are in meshing transmission connection with the outer gear ring.

[0012] Preferably, the brake head includes a mandrel, a lapping group, a position control gear, and an arc plate rack. The inner end of the spring is fixed on the mandrel, and the outer end is fixed on the external gear ring. One end of the L-shaped middle control plate is slidably inserted into the plate hole opened on the mandrel, and the lapping group is positioned on the L-shaped middle control plate by fixing an L-shaped short column. There is a lapping group drivingly connected between the mandrel and the position control gear. One side of the position control gear is meshingly connected with an arc plate rack, and the arc plate rack slidably passes through the inner hole of the arc flat cylinder fixed on the integrated frame. When a fire occurs, the arc plate rack slides and pushes the inclined plate fixed on the first shaft.

[0013] Preferably, the lapping group includes a sub-shaft, a sub-disk, an L-shaped rod, a multi-control body, a spring, and a fixed ring body. The multi-control body includes a disk body and a frustum fixed on one side of the disk body. One end of the mandrel slidably passes through two through holes opened on the multi-control body by fixing two symmetrically distributed small half-columns. Fixed ring bodies are arranged on both sides of the multi-control body, and the fixed ring bodies are fixedly sleeved on the mandrel. A spring contacts one side of the frustum of the multi-control body, and the other side of the multi-control body contacts the L-shaped short column on the L-shaped middle control plate. The L-shaped short column on the L-shaped middle control plate contacts and supports the outer inclined wall of the frustum of the multi-control body. The spring is sleeved on the mandrel and is supported between the multi-control body and a fixed ring body. A plurality of L-shaped rods are uniformly and fixedly arranged around the outer part of the disk body of the multi-control body. One end of the sub-shaft is fixedly connected with the position control gear, and the other end of the sub-shaft is fixed with a sub-disk. The sub-shaft is movably sleeved in the circular hole opened on the integrated frame. A plurality of through holes for inserting the L-shaped rods are uniformly arranged around the sub-disk.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The watertight door of the present invention has a normal mode, a watertight mode, and a fireproof mode. The watertight door in the fireproof mode cannot be easily opened. Crew members cannot push the handle L rod without knowing the fire situation, so that the crew can know that there is a fire on the other side of the door and avoid the safety problem of the fire spreading outwards after opening the door.

[0016] 2. After the watertight door intercepts the fire, when the fire is over, the fireproof mode of the watertight door is automatically released, and the fireproof component loses the driving force on the first shaft. In this way, the crew can directly push the handle L rod to release the locking state of the door bolt frame, and then easily open the watertight door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the position of the door bolt frame.

[0019] Figure 3 It is a schematic structural diagram of the square tube frame.

[0020] Figure 4 It is a schematic diagram of the position of the first shaft.

[0021] Figure 5 It is a schematic diagram of the door frame structure.

[0022] Figure 6 It is a schematic diagram of the gear disc structure.

[0023] Figure 7 It is a schematic diagram of the fire prevention component structure.

[0024] Figure 8 It is a schematic diagram of the swing plate structure.

[0025] Figure 9 It is a schematic diagram of the position limiter structure.

[0026] Figure 10 It is Figure 9 The schematic diagram of the structure at position A in

[0027] Figure 11 It is a schematic diagram of the spring winding disc structure.

[0028] Figure 12 It is a schematic diagram of the brake head structure.

[0029] Figure 13 It is a schematic diagram of the lapping group structure.

[0030] Figure 14 It is a schematic diagram of the arc plate rack structure.

[0031] In the figure: door panel 1, door frame 2, square tube frame 3, door bolt fixture 4, door bolt frame 5, first shaft 6, handle disc 7, fire prevention component 8, gear disc 9, handle L rod 10, swing plate 11, temperature measurement part 12, force application part 13, force concentration part 14, restraint ring 15, T plate 16, deformation rod 17, integrated frame 18, shaft group 19, position limiter 20, spring winding disc 21, brake head 22, L-shaped central control board 23, straight square tube 24, pull-back elastic piece 25, worm 26, unit elastic piece 27, unit L column 28, bottom shaft 29, sector heavy plate 30, one-way bearing 31, horizontal shaft 32, external gear ring 33, unit arc plate 34, rail cylinder 35, spring 36, core shaft 37, lapping group 38, position control gear 39, arc plate rack 40, sub-shaft 41, sub-disc 42, L-shaped small rod 43, multi-control body 44, spring 45, fixed ring body 46. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 to 14The present invention provides a technical solution: a stable watertight hydraulic door for a ship, comprising a door panel 1 and a door frame 2 hinged at one end of the door panel 1, a square tube frame 3 is fixed on one side of the door panel 1, the square tube frame 3 and the door frame 2 are in sealing contact after the door is closed, and a plurality of bolt clamps 4 are connected between the door frame 2 and the square tube frame 3, the bolt clamps 4 are arranged on the square tube frame 3, and the bolt clamps 4 are elastically clamped into the grooves provided on the door frame 2, a bolt frame 5 is in contact with the side of the door frame 2 facing away from the square tube frame 3, and the bolt frame 5 is fixedly connected to the door panel 1 by arranging a plurality of thick shafts, and the bolt frame 5 Cooperating with the square tube frame 3 to clamp the door frame 2, a first shaft 6 passes through the middle of the bolt frame 5, a handle plate 7 is fixed to one end of the first shaft 6, and a fireproof part 8 for fireproof braking is contacted and transmitted at the other end. A gear plate 9 is fixedly sleeved on the first shaft 6, and a handle L rod 10 is arranged on the door panel 1. The shaft rod on the handle L rod 10 is movably sleeved in a through hole opened on the door panel 1, and a swing plate 11 is fixed to one end of the shaft rod of the handle L rod 10. The swing plate 11 is connected to the gear plate 9 by meshing transmission through an arc-shaped rack. The bolt fixture 4 and the bolt frame 5 are both existing technical devices.

[0034] The watertight door of the present invention has multiple working modes. One is a conventional mode, in which only the bolt clamp 4 is connected between the door frame 2 and the square tube frame 3. The crew directly manually closes the door panel 1 on the door frame 2. After it is completely closed, the bolt clamp 4 fixed on the square tube frame 3 elastically clamps the door frame 2. The elastic clamping force of the bolt clamp 4 is small, and the crew can easily pull open the door panel 1 when opening the door.

[0035] The second is the watertight mode. After the crew closes the door panel 1 on the door frame 2, the bolt fixture 4 completes the elastic locking. Then the crew swings the handle L rod 10, and the handle L rod 10 rotates to drive the swing plate 11, causing the gear plate 9 to rotate, and then drives the bolt frame 5 through the first shaft 6. The branch clamps on the bolt frame 5 swing and get stuck on the door frame 2, that is, Figure 2 In the state shown, with such a strong sealing method, the watertight door can withstand high pressure. In addition, the crew can also drive the first shaft 6 to rotate by turning the handle plate 7, thereby controlling the operation of the bolt frame 5.

[0036] The third mode is the fire prevention mode. After the door panel 1 is completely closed on the door frame 2, the bolt clamp 4 plays an elastic locking function. At this time, the branches on the bolt frame 5 are not stuck on the outer wall of the door frame 2. When a fire occurs, the room temperature in the cabin on the side where the fireproof component 8 is located rises due to the fire, and the fireproof component 8 will automatically work to drive the first shaft 6 to rotate, thereby making the bolt frame 5 work and be stuck on the door frame 2. The strong driving force provided by the fireproof component 8 ensures that the bolt frame 5 is firmly stuck on the door frame 2, so that the crew cannot easily open the door panel 1 without the help of tools, because after the crew opens the door panel 1 without knowing it, the fire originally intercepted in the cabin will continue to spread to other cabins after passing through the watertight door. The fire prevention mode of the present invention can remind the crew that once the door panel 1 cannot be opened, a serious fire may occur on the other side of the door.

[0037] Finally, when the fire is extinguished, the fire prevention component 8 automatically stops driving the first shaft 6, so that the crew can swing the handle L rod 10 to contract the bolt rack 5 in the deployed state. The bolt rack 5 no longer catches the door frame 2, so that the crew can directly pull open the door panel 1 and open the watertight door.

[0038] Reference Figure 7 Understand that the fire prevention component 8 includes a temperature measuring part 12 for fire detection, a power generating part 13, and a power concentrating part 14 for collecting swing power. The temperature measuring part 12 and the power generating part 13 are in contact transmission, and the power concentrating part 14 and the power generating part 13 are in transmission connection. When a fire occurs, the power generating part 13 drives the first shaft 6.

[0039] Reference Figure 7 Understand that the temperature measuring part 12 includes a restraint ring 15, a T plate 16, and a deformation rod 17 that expands and contracts due to heat. One end of the T plate 16 is fixed on the door panel 1, and a row of restraint rings 15 is fixed on the T plate 16. The deformation rod 17 passes through the restraint rings 15. One end of the deformation rod 17 is in contact transmission with the power generating part 13, and the other end of the deformation rod 17 is supported by an L-shaped hook column arranged on the T plate 16.

[0040] Reference Figure 9 Understand that the power generating part 13 includes an integrated frame 18, a shaft group 19, a limit device 20, a spring winding disc 21, and a brake head 22. One end of the shaft group 19 is in transmission connection with the power concentrating part 14, and the other end is in transmission connection with the spring winding disc 21. One side of the middle part of the spring winding disc 21 is in transmission connection with the brake head 22, and the limit device 20 positions and controls the brake head 22.

[0041] Reference Figure 9 Understand that the limit device 20 includes an L-shaped central control plate 23, a straight cylinder 24, and a pulling-back elastic piece 25. One end of the integrated frame 18 is fixed on the door panel 1, the straight cylinder 24 is fixed on the integrated frame 18, the L-shaped central control plate 23 slides through the inner hole of the straight cylinder 24. One end of the L-shaped central control plate 23 contacts the end of the deformation rod 17, the other end of the L-shaped central control plate 23 positions the brake head 22, and one end of the pulling-back elastic piece 25 is fixed on the straight cylinder 24, and the other end is fixed on the L-shaped central control plate 23.

[0042] Reference Figure 10 Understand that the shaft group 19 includes a worm 26, a unit elastic piece 27, a unit L column 28, and a bottom shaft 29. One end of the bottom shaft 29 is provided with a worm 26. A plurality of unit L columns 28 are evenly arranged in a ring between the bottom shaft 29 and the worm 26. A unit elastic piece 27 is fixed on each unit L column 28. The unit elastic piece 27 is stuck into a plurality of arc-shaped grooves evenly arranged on the outer side wall of the worm 26. One end of the unit L column 28 is fixed on the bottom shaft 29, and the worm 26 and the bottom shaft 29 are respectively movably sleeved in two through holes opened on the integrated frame 18.

[0043] Reference Figure 11It is understood that the force - gathering part 14 includes a sector - shaped heavy plate 30, a one - way bearing 31, and a cross - shaft 32. One end of the cross - shaft 32 is in meshing transmission connection with the bevel gear fixed at the bottom end of the bottom shaft 29 through a fixed bevel gear. A one - way bearing 31 is fixedly sleeved outside the cross - shaft 32, and the one - way bearing 31 is fixedly embedded in a through - hole opened on the sector - shaped heavy plate 30. The cross - shaft 32 is movably sleeved in a bottom hole opened on the integrated frame 18.

[0044] Reference Figure 11 It is understood that the spring - winding disc 21 includes an outer gear ring 33, unit arc plates 34, a rail cylinder 35, and a spring 36. The spring 36 is connected between the outer gear ring 33 and the brake head 22. A plurality of unit arc plates 34 are evenly and fixedly arranged in a ring on one side of the outer gear ring 33, and the unit arc plates 34 are distributed in the rail cylinder 35. The rail cylinder 35 slides through an arc - column groove opened on the unit arc plate 34, and the rail cylinder 35 is fixed on the integrated frame 18. The helical teeth on the worm 26 are in meshing transmission connection with the outer gear ring 33.

[0045] Reference Figure 12 It is understood that the brake head 22 includes a core shaft 37, a lapping group 38, a position - controlling gear 39, and an arc - plate rack 40. The inner end of the spring 36 is fixed on the core shaft 37, and the outer end is fixed on the outer gear ring 33. One end of the L - shaped middle control plate 23 slides into a plate hole opened on the core shaft 37, and the lapping group 38 is positioned by fixing an L - shaped short column on the L - shaped middle control plate 23. There is a lapping group 38 for transmission connection between the core shaft 37 and the position - controlling gear 39. An arc - plate rack 40 is meshed and connected to one side of the position - controlling gear 39. The arc - plate rack 40 slides through the inner hole of an arc - shaped flat cylinder fixed on the integrated frame 18. When a fire occurs, the arc - plate rack 40 slides and pushes a bevel plate fixed on the first shaft 6.

[0046] Reference Figure 13 It is understood that the lapping group 38 includes a sub - shaft 41, a sub - disc 42, an L - shaped small rod 43, a multi - control body 44, a spring 45, and a fixed - ring body 46. The multi - control body 44 includes a disc body and a frustum fixed on one side of the disc body. One end of the core shaft 37 slides through two through - holes opened on the multi - control body 44 by fixing two symmetrically distributed small semi - columns. Fixed - ring bodies 46 are arranged on both sides of the multi - control body 44, and the fixed - ring bodies 46 are fixedly sleeved on the core shaft 37. A spring 45 contacts one side of the frustum of the multi - control body 44, and the other side of the multi - control body 44 contacts an L - shaped short column on the L - shaped middle control plate 23. The L - shaped short column on the L - shaped middle control plate 23 contacts and supports the outer inclined wall of the frustum of the multi - control body 44. The spring 45 is sleeved on the core shaft 37 and is supported between the multi - control body 44 and a fixed - ring body 46. A plurality of L - shaped small rods 43 are evenly and fixedly arranged in a ring outside the disc body of the multi - control body 44. One end of the sub - shaft 41 is fixedly connected to the position - controlling gear 39, and a sub - disc 42 is fixed at the other end of the sub - shaft 41. The sub - shaft 41 is movably sleeved in a circular hole opened on the integrated frame 18. A plurality of through - holes for inserting the L - shaped small rods 43 are evenly arranged in a ring on the sub - disc 42.

[0047] Whether the ship is moving or stationary at sea, it will be affected by the water flow and sway. During the sway of the ship, the watertight door sways accordingly. The force concentrating part 14 utilizes the power generated by the ship's sway. The sector-shaped heavy plate 30 always maintains a vertical state under the influence of gravity, that is, the sector-shaped heavy plate 30 swings relative to the door body. Figure 11 During the swing of the sector-shaped heavy plate 30 in Figure 11 , the one-way bearing 31 drives the horizontal shaft 32 to rotate in a fixed direction. The horizontal shaft 32 drives the bottom shaft 29, and then drives the worm 26 to rotate through the unit L column 28 and the unit elastic piece 27. The elastic clamping position of the unit elastic piece 27 can achieve the function of disconnecting the transmission under overpressure. The spring 36 is tightened to the maximum extent and cannot be tightened further, thus breaking the clamping state of the unit elastic piece 27, that is, the rotation of the bottom shaft 29 will not drive the worm 26. During the process of the spring 36 being tightened and storing energy, the bottom shaft 29 and the worm 26 rotate synchronously. The worm 26 drives the external gear ring 33, and the rotation of the external gear ring 33 tightens the rail cylinder 35. Here, the core shaft 37 fixed at the inner end of the rail cylinder 35 is intercepted and fixed by the L-shaped central control plate 23 and does not move. Therefore, when the outer end of the spring 36 rotates along with the rail cylinder 35, the spring 36 will continue to contract to the maximum extent.

[0048] The specific principle of the fire prevention mode is as follows: The high temperature in the cabin causes the deformation rod 17 to expand and deform thermally. The deformation rod 17 elongates and supports the L-shaped central control plate 23. The L-shaped central control plate 23 moves and is pulled out from the core shaft 37. Refer to Figure 12 and Figure 13 for understanding. The L-shaped short column on the L-shaped central control plate 23 first separates from the multi-control body 44, so that the spring 45 pushes the multi-control body 44 to move axially. Figure 13 The multi-control body 44 in Figure 13 slides to the left, driving the L-shaped small rod 43 to insert into the dividing plate 42, thus establishing synchronous rotation between the core shaft 37 and the dividing shaft 41. Next, the end of the L-shaped central control plate 23 is pulled out from the plate hole of the core shaft 37. In this way, only the core shaft 37 driven by the spring 36 rotates. The core shaft 37 drives the multi-control body 44 to rotate synchronously, and then drives the dividing plate 42 to rotate through the L-shaped small rod 43. Here, even if the L-shaped small rod 43 does not initially insert into the through hole of the dividing plate 42, it will insert during subsequent rotation because the L-shaped small rod 43 is pushed by the elastic force of the spring 45 and abuts against the dividing plate 42. The circumferentially moving L-shaped small rod 43 will insert into the through hole on the dividing plate 42 when it encounters it. Therefore, the core shaft 37 and the dividing shaft 41 will rotate synchronously. The dividing shaft 41 drives the control position gear 39, and the control position gear 39 moves and supports the inclined plate on the first shaft 6, causing the first shaft 6 to rotate. In this way, the rotation of the first shaft 6 drives the door bolt frame 5 to work and expand, and the door bolt frame 5 firmly clamps the door frame 2.

[0049] After the fire is over, the deformation rod 17 is deformed and shortened, and the pull-back spring piece 25 is deformed and pulled back to the L-shaped center control plate 23. The end of the L-shaped center control plate 23 is re-inserted into the plate hole of the core shaft 37. Even if it cannot be inserted, it does not matter, because the shaking of the hull will cause the focusing part 14 to supply energy. As mentioned earlier, the power provided by the focusing part 14 will cause the core shaft 37 to rotate. The plate hole on the core shaft 37 encounters the end of the L-shaped center control plate 23 during rotation. The end of the L-shaped center control plate 23 will be inserted smoothly, so that the core shaft 37 cannot continue to rotate, and the outer end of the spring 36 rotates, while the inner end does not move, so that the spring 36 automatically starts a new round of power storage. In addition, the L-shaped short column on the L-shaped center control plate 23 supports the multi-control body 44. After the multi-control body 44 is reset, the L-shaped small rod 43 is pulled out from the through hole of the sub-disk 42, that is, Figure 13 The core shaft 37 and the branch shaft 41 no longer rotate synchronously, the core shaft 37 is fixed, and the position control gear 39 can rotate freely. The arc plate rack 40 controlled by the position control gear 39 can slide freely, and the arc plate rack 40 no longer supports the inclined plate on the first shaft 6. In this way, the fireproof part 8 automatically loses control of the first shaft 6, and the fireproof mode of the watertight door is automatically ended. The crew can directly swing the handle L rod 10 to open the watertight door.

[0050] Even if the fire protection mode is triggered, if the crew wants to force open the door panel 1, they need to use tools to increase the strength, such as swinging the handle L rod 10 or turning the handle plate 7, because the force to be resisted is the pressure released after the spring 36 in the fire protection part 8 is fully charged. If the force is sufficient, the watertight door in the fire protection mode can be forcibly opened.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable watertight hydraulic door for a ship, comprising a door panel (1) and a door frame (2) hinged at one end of the door panel (1), characterized in that: A square tube frame (3) is fixed to one side of the door panel (1); the square tube frame (3) and the door frame (2) are in sealing contact after the door is closed; a plurality of bolt clamps (4) are connected between the door frame (2) and the square tube frame (3); the bolt clamps (4) are arranged on the square tube frame (3), and the bolt clamps (4) are elastically clamped into grooves provided on the door frame (2); a bolt frame (5) is in contact with the side of the door frame (2) facing away from the square tube frame (3); the bolt frame (5) is fixedly connected to the door panel (1) by arranging a plurality of thick shafts on the bolt frame (5); the bolt frame (5) and the square tube frame (3) cooperate to clamp the door frame (2) 2), a first shaft (6) passes through the middle of the bolt frame (5), a handle plate (7) is fixed to one end of the first shaft (6), and a fireproof member (8) for fireproof braking is contact-driven at the other end, a gear plate (9) is fixedly sleeved on the first shaft (6), a handle L rod (10) is provided on the door panel (1), a shaft on the handle L rod (10) is movably sleeved in a through hole provided on the door panel (1), and a swing plate (11) is fixed to one end of the shaft of the handle L rod (10), and the swing plate (11) is meshingly connected to the gear plate (9) by providing an arc-shaped rack on the swing plate (11); The fire prevention component (8) comprises a temperature measuring part (12) for fire prevention detection, a force generating part (13) and a force gathering part (14) for collecting swinging power, the temperature measuring part (12) and the force generating part (13) are in contact transmission, and the force gathering part (14) and the force generating part (13) are in transmission connection, and when a fire occurs, the force generating part (13) drives the first shaft (6).

2. The stable watertight hydraulic door for ships according to claim 1, characterized in that: The temperature measuring part (12) comprises a restraining ring (15), a T-plate (16) and a deformable rod (17) that expands and contracts with heat and contracts. One end of the T-plate (16) is fixed on the door panel (1), and a row of restraining rings (15) is fixed on the T-plate (16). The deformable rod (17) passes through the restraining rings (15). One end of the deformable rod (17) contacts and transmits with the force generating part (13), and the other end of the deformable rod (17) is supported by an L-shaped hook column arranged on the T-plate (16).

3. The stable watertight hydraulic door for ships according to claim 2, characterized in that: The force generating portion (13) comprises an integrated frame (18), an axis group (19), a stopper (20), a spring disc (21) and a brake head (22); one end of the axis group (19) is transmission-connected to the force gathering portion (14), and the other end is transmission-connected to the spring disc (21); one side of the middle of the spring disc (21) is transmission-connected to the brake head (22); and the stopper (20) controls the position of the brake head (22).

4. The stable watertight hydraulic door for ships according to claim 3, characterized in that: The stopper (20) comprises an L-shaped central control plate (23), a rectangular tube (24) and a pull-back spring sheet (25); one end of the integrated frame (18) is fixed to the door panel (1); the rectangular tube (24) is fixed to the integrated frame (18); the L-shaped central control plate (23) slides through the inner hole of the rectangular tube (24); one end of the L-shaped central control plate (23) contacts the end of the deformable rod (17); the other end of the L-shaped central control plate (23) engages the brake head (22); one end of the pull-back spring sheet (25) is fixed to the rectangular tube (24) and the other end is fixed to the L-shaped central control plate (23).

5. The stable watertight hydraulic door for ships according to claim 4, characterized in that: The shaft assembly (19) comprises a worm (26), a unit spring sheet (27), a unit L-column (28) and a bottom shaft (29); a worm (26) is arranged at one end of the bottom shaft (29); a plurality of unit L-columns (28) are evenly arranged between the bottom shaft (29) and the worm (26); a unit spring sheet (27) is fixed to each unit L-column (28); the unit spring sheet (27) is inserted into a plurality of arc surface grooves evenly arranged on the outer wall of the worm (26); one end of the unit L-column (28) is fixed to the bottom shaft (29); and the worm (26) and the bottom shaft (29) are respectively movably sleeved in two through holes provided on the integrated frame (18).

6. The stable watertight hydraulic door for ships according to claim 5, characterized in that: The force focusing part (14) comprises a sector-shaped heavy plate (30), a one-way bearing (31) and a transverse shaft (32); one end of the transverse shaft (32) is meshed and transmission-connected with a fixed bevel gear and a bevel gear fixed at the bottom end of the bottom shaft (29); a one-way bearing (31) is fixedly sleeved on the outside of the transverse shaft (32); the one-way bearing (31) is fixedly embedded in a through hole opened on the sector-shaped heavy plate (30); and the transverse shaft (32) is movably sleeved in a bottom hole opened on the integrated frame (18).

7. The stable watertight hydraulic door for ships according to claim 5, characterized in that: The spring disc (21) comprises an outer gear ring (33), a unit arc plate (34), a rail barrel (35) and a spring (36); the spring (36) is connected between the outer gear ring (33) and the brake head (22); a plurality of unit arc plates (34) are evenly fixedly arranged on one side of the outer gear ring (33); the unit arc plates (34) are distributed in the rail barrel (35); the rail barrel (35) slides through an arc column groove provided on the unit arc plate (34); the rail barrel (35) is fixed on the integrated frame (18); and the spiral teeth on the worm (26) are meshed and transmission-connected with the outer gear ring (33).

8. The stable watertight hydraulic door for ships according to claim 7, characterized in that: The brake head (22) comprises a core shaft (37), an overlap group (38), a position control gear (39) and an arc plate rack (40); the inner end of the clockwork spring (36) is fixed on the core shaft (37), and the outer end is fixed on the outer gear ring (33); one end of the L-shaped central control plate (23) is slidably inserted into a plate hole opened on the core shaft (37), and the overlap group (38) is clamped on the L-shaped central control plate (23) by fixing an L-shaped short column; the overlap group (38) is transmission-connected between the core shaft (37) and the position control gear (39); one side of the position control gear (39) is meshingly connected with the arc plate rack (40); the arc plate rack (40) slides through the inner hole of the arc flat cylinder fixed on the integrated frame (18); when a fire occurs, the arc plate rack (40) slides to push the inclined plate fixed on the first shaft (6).

9. The stable watertight hydraulic door for ships according to claim 8, characterized in that: The overlap group (38) comprises a split shaft (41), a split disk (42), an L-shaped small rod (43), a multi-control body (44), a spring (45) and a fixed ring body (46); the multi-control body (44) comprises a disk body and a truncated table fixed on one side of the disk body; one end of the core shaft (37) slides through two through holes opened on the multi-control body (44) by fixing two symmetrically distributed small semi-columns; both sides of the multi-control body (44) are provided with a fixed ring body (46); the fixed ring body (46) is fixedly sleeved on the core shaft (37); one side of the truncated table of the multi-control body (44) contacts the spring (45); and the other side of the multi-control body (44) and the L-shaped central control plate (23) are in contact with each other. The L-shaped short column contacts the outer inclined wall of the truncated cone on the L-shaped central control plate (23) and supports the multi-control body (44). The spring (45) is sleeved on the core shaft (37), and the spring (45) is supported between the multi-control body (44) and a fixed ring body (46). A plurality of L-shaped small rods (43) are evenly fixedly arranged on the outside of the disk body of the multi-control body (44). One end of the split shaft (41) is fixedly connected to the position control gear (39), and a split disk (42) is fixedly arranged on the other end of the split shaft (41). The split shaft (41) is movably sleeved in a circular hole opened on the integrated frame (18), and a plurality of through holes for inserting the L-shaped small rods (43) are evenly arranged on the split disk (42).

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