Ship maintenance access door

Abstract

The invention belongs to the technical field of ship maintenance, and discloses a ship maintenance access door which comprises a door frame. The access door body is hinged to one side of the door frame; the door lock mechanism is arranged in the middle of the access door body, and a locking assembly is arranged at one end of the door lock mechanism; and the trigger assembly is arranged at the top of the overhaul access door body. According to the technical scheme, the movable ring and the driving water wheel are arranged, lubricating oil flows in the conveying groove to drive the driving water wheel to rotate, and a first bevel gear can synchronously rotate to drive a second bevel gear to rotate, so that a linkage block is driven to rotate to pull a fixed block and the movable ring to move left and right back and forth in an inner cavity of a heating cavity; when the heating cavity is full of the lubricating oil, the lubricating oil can be extruded and pushed through back-and-forth left-and-right movement of the heating cavity, so that the lubricating oil is rubbed to generate high temperature, the position of the locking block can be smoothly released from the solidification state, solidification is quickly and conveniently released, and the labor intensity of operators is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of ship maintenance, in particular to a ship maintenance passage door. Background Art

[0002] Ship maintenance access doors play a vital role in ship safety and maintenance. They are not only passages for crew members to conduct daily inspections and maintenance, but also important escape routes for crew members and passengers in emergency situations. They have strong protective properties and high structural strength to withstand possible impacts and pressures.

[0003] The existing ship maintenance passage door has a rotating wheel on the front that is exposed to the outside world. When encountering cold weather, it will solidify, causing it to get stuck and difficult to rotate. It is necessary to use a corresponding heating tool to unfreeze it. Although this can solve the problem well, it will increase the labor intensity of the operators, so it needs to be improved. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a ship maintenance passage door, which has the advantage of being easy to release the frozen locked state of the door lock.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ship maintenance channel door, comprising a door frame; a maintenance channel door body, hinged to one side of the door frame; a door lock mechanism, arranged in the middle of the maintenance channel door body, and a locking assembly is arranged at one end; a trigger assembly is arranged at the top of the maintenance channel door body and located between the locking assembly and the maintenance channel door body; a conveying assembly is arranged inside the maintenance channel door body and on one side of the triggering assembly; a heating assembly, the heating assembly comprises a heating chamber, the heating chamber is opened in the inner cavity of the maintenance channel door body and is located outside the locking assembly, a movable ring is movably installed on the left side of the inner cavity of the heating chamber, a fixed block is arranged on the top of the movable ring, and a driving assembly located between the conveying assembly and the heating chamber is arranged inside the maintenance channel door body.

[0006] Preferably, the door lock mechanism comprises a driving hand wheel, a fixed plate, a locking lever, a first power spring and a driving push plate;

[0007] The driving hand wheel is movably mounted on the middle part of the maintenance passage door body, the fixed plate is fixedly installed on the middle part of the other side of the maintenance passage door body, the locking baffle rod is movably mounted on the back side of the maintenance passage door body, and the inner end is slidably mounted on the fixed plate, the locking baffle rod is elastically connected to the fixed plate through a first power spring, and the driving push plate is fixedly mounted on the surface of the driving hand wheel and the inner side of the fixed plate.

[0008] Preferably, the locking assembly comprises a rotating rod, a locking block, a rotating shaft and a locking slot;

[0009] The rotating rod is threadedly sleeved inside one end of the driving handwheel, the locking block is movably installed in the inner cavity of the driving handwheel, the rotating shaft is fixedly installed at one end of the rotating rod and located inside the locking block, and the locking slot is opened inside the driving handwheel and located on one side of the locking block.

[0010] Preferably, the trigger assembly includes an oil storage cylinder, a rubber air bag, a movable piston block and a second power spring;

[0011] The oil storage cylinder is arranged at the top of the maintenance channel door body and is located on the inner side of the rotating rod and the maintenance channel door body. The rubber air bag is arranged at the bottom of the inner cavity of the oil storage cylinder. The movable piston block is arranged on the top of the rubber air bag. The top of the movable piston block is elastically connected to the inner wall of the oil storage cylinder through a second power spring. The middle part of the top end of the oil storage cylinder is fixedly connected to an oil guide pipe valve.

[0012] Preferably, the delivery assembly comprises a connecting pipe, a delivery groove, a one-way valve column and a first connecting spring;

[0013] The connecting pipe is fixedly connected between the oil storage cylinder and the inspection channel door body and is located at the bottom of the movable piston block. The connecting pipe is connected to the heating chamber through the conveying groove. The one-way valve column is movably installed on one side of the inner cavity of the conveying groove. The one-way valve column is elastically connected to the inner wall of the conveying groove through a first connecting spring.

[0014] Preferably, the driving assembly comprises a driving water wheel, a first bevel gear, a second bevel gear and a linkage block;

[0015] The driving water wheel is movably sleeved inside the maintenance channel door body, and one end extends to the inside of the conveying trough. The first bevel gear is fixedly sleeved on the other end surface of the driving water wheel. The second bevel gear is movably sleeved on the inner wall of the maintenance channel door body and is located on one side of the first bevel gear. The linkage block is fixedly sleeved on one end of the second bevel gear, and the protruding part of one end of the linkage block extends to the inner wall of the fixed block. The surfaces of the first bevel gear and the second bevel gear are meshed.

[0016] Preferably, a lubrication cavity between the movable ring and the driving hand wheel is provided inside the maintenance passage door body, and a blocking component located in the middle of the top end of the lubrication cavity is provided inside the maintenance passage door body.

[0017] Preferably, the blocking assembly comprises a shielding plate, a first pneumatic cylinder and a first piston rod;

[0018] The baffle is movably installed inside the maintenance channel door body and is located on both sides of the middle of the top of the lubrication cavity. The first pneumatic cylinder is fixedly installed inside the maintenance channel door body and is located outside the baffle. The first piston rod is movably installed in the inner cavity of the first pneumatic cylinder, and the inner end is fixedly connected to the baffle.

[0019] Preferably, a pneumatic assembly located outside the lubrication cavity is provided inside the maintenance passage door body, and the pneumatic assembly includes a second pneumatic cylinder, a second piston rod and a second connecting spring;

[0020] The second pneumatic cylinder is fixedly installed inside the maintenance channel door body and is located in the middle of the outer side of the lubrication cavity. The second piston rod is movably installed on the inner wall of the second pneumatic cylinder. The outer side of the second piston rod is elastically connected to the inner wall of the second pneumatic cylinder through a second connecting spring.

[0021] Preferably, the second pneumatic cylinder is connected to the first pneumatic cylinder through a ventilation channel.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The above technical solution is to set a movable ring and a driving water wheel, and the driving water wheel is driven to rotate by the flow of lubricating oil in the conveying groove, so that the first bevel gear can rotate synchronously to drive the second bevel gear to rotate, so as to drive the linkage block to rotate and pull the fixed block and the movable ring to move back and forth in the heating chamber. When the lubricating oil in the heating chamber is full, the lubricating oil can be squeezed and pushed by the heating chamber to move back and forth, so that the friction generates high temperature, and then the locking block position can be smoothly released from the solidified state, thereby achieving quick and convenient release of solidification, which greatly reduces the labor intensity of the operator.

[0024] The present invention provides a rubber air bag and a second power spring. When the gas in the rubber air bag senses the cold air, the rubber air bag will shrink as a whole. At this time, the elastic force of the second power spring will assist in pushing the movable piston block downward as a whole, so that the lubricating oil in the inner cavity at the top of the oil storage cylinder pushes the one-way valve column to move to one side through the connecting pipe, and the lubricating oil will smoothly enter the conveying groove, so as to subsequently smoothly drive the driving water wheel to rotate as a whole, thereby achieving the effect of driving the driving water wheel to operate.

[0025] The present invention provides a baffle plate and a second piston rod. When the movable ring pushes the lubricating oil in the inner cavity of the heating chamber to shake, part of the lubricating oil will be pushed into the interior of the lubricating chamber. When the lubricating oil in the lubricating chamber is full, the second piston rod will be squeezed and pushed to move in opposite directions, so as to push the gas outside the inner cavity of the second pneumatic cylinder to enter the first pneumatic cylinder through the ventilation channel, and push the two baffle plates to move towards each other, thereby blocking the top opening of the lubricating chamber, making it easier for the subsequent movable ring to squeeze and push the lubricating oil in the heating chamber to generate heat. Finally, the lubricating oil in the lubricating chamber can smoothly improve the smoothness of the overall rotation of the driving handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the back side of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the cross section of the door lock mechanism of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of the cross section of the trigger component of the present invention;

[0030] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0031] Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0032] Figure 7 It is a schematic cross-sectional view of the locking slot of the present invention;

[0033] Figure 8 It is a partial structural schematic diagram of the cross section of the driving component of the present invention;

[0034] Fig. 9 It is a cross-sectional structural schematic diagram of the pneumatic component of the present invention;

[0035] Fig.10 It is a schematic structural diagram of the plugging assembly of the present invention.

[0036] In the figure: 1, door frame; 2, maintenance channel door body; 3, door lock mechanism; 301, driving hand wheel; 302, fixed plate; 303, locking lever; 304, first power spring; 305, driving push plate; 4, locking assembly; 401, rotating rod; 402, locking block; 403, rotating shaft; 404, locking slot; 5, trigger assembly; 501, oil storage cylinder; 502, rubber air bag; 503, moving piston block; 504, second power spring; 6, oil guide pipe valve; 7, delivery assembly; 701, connecting pipe; 702, delivery trough; 703, One-way valve column; 704, first connecting spring; 8, heating component; 801, heating chamber; 802, movable ring; 803, fixed block; 9, driving component; 901, driving water wheel; 902, first bevel gear; 903, second bevel gear; 904, linkage block; 10, lubrication chamber; 11, blocking component; 1101, baffle plate; 1102, first pneumatic cylinder; 1103, first piston rod; 12, pneumatic component; 1201, second pneumatic cylinder; 1202, second piston rod; 1203, second connecting spring; 13, ventilation channel. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 10 As shown, the present invention provides a ship maintenance channel door, comprising a door frame 1; a maintenance channel door body 2, hinged on one side of the door frame 1; a door lock mechanism 3, arranged in the middle of the maintenance channel door body 2, and a locking assembly 4 is arranged at one end; a trigger assembly 5, arranged at the top of the maintenance channel door body 2, and located between the locking assembly 4 and the maintenance channel door body 2; a conveying assembly 7, arranged inside the maintenance channel door body 2 and on one side of the triggering assembly 5; a heating assembly 8, the heating assembly 8 comprises a heating chamber 801, the heating chamber 801 is opened in the inner cavity of the maintenance channel door body 2, and is located outside the locking assembly 4, a movable ring 802 is movably installed on the left side of the inner cavity of the heating chamber 801, a fixing block 803 is arranged on the top of the movable ring 802, and a driving assembly 9 located between the conveying assembly 7 and the heating chamber 801 is arranged inside the maintenance channel door body 2.

[0039] When the trigger component 5 is triggered to allow the internal lubricating oil to enter the heating chamber 801 through the conveying component 7, the driving component 9 will drive the movable ring 802 and the fixed block 803 to move back and forth as a whole. At this time, the lubricating oil inside the heating chamber 801 will be squeezed and pushed smoothly to generate heat, thereby heating the position of the locking component 4 to relieving solidification.

[0040] like Figure 3 As shown, the door lock mechanism 3 includes a driving hand wheel 301, a fixed plate 302, a locking lever 303, a first power spring 304 and a driving push plate 305;

[0041] The driving hand wheel 301 is movably mounted on the middle part of the maintenance passage door body 2, the fixed plate 302 is fixedly installed on the middle part of the other side of the maintenance passage door body 2, the locking baffle rod 303 is movably mounted on the back side of the maintenance passage door body 2, and the inner end is slidably mounted on the fixed plate 302, the locking baffle rod 303 is elastically connected to the fixed plate 302 through the first power spring 304, and the driving push plate 305 is fixedly mounted on the surface of the driving hand wheel 301 and the inner side of the fixed plate 302.

[0042] Adopt the above scheme: by setting a driving push plate 305, Figure 3 It can be seen that a plurality of inclined grooves are provided on the outer side of the driving push plate 305 , and when the inclined grooves and the inner ends of the locking blocking rods 303 are misaligned, they will be squeezed and moved outward, thereby blocking and locking the inspection channel door body 2 .

[0043] like Figure 4 As shown, the locking assembly 4 includes a rotating rod 401, a locking block 402, a rotating shaft 403 and a locking slot 404;

[0044] The rotating rod 401 is threadedly sleeved inside one end of the driving hand wheel 301, the locking block 402 is movably installed in the inner cavity of the driving hand wheel 301, the rotating shaft 403 is fixedly installed at one end of the rotating rod 401 and is located inside the locking block 402, and the locking slot 404 is opened inside the driving hand wheel 301 and is located on one side of the locking block 402.

[0045] The above scheme is adopted: by providing a locking block 402, when the operator rotates the rotating rod 401 to move to one side, the rotating shaft 403 can be rotated to push the locking block 402 to move synchronously as a whole, until the locking block 402 moves to the inside of the locking slot 404. At this time, the operator can smoothly rotate the driving hand wheel 301 to make the outer inclined groove of the fixed plate 302 and the locking baffle 303 face each other, so that the elastic force of the first power spring 304 is released to push the locking baffle 303 to move inward and retract, thereby successfully releasing the blocking and locking effect on the maintenance channel door body 2.

[0046] like Figure 4 As shown, the trigger assembly 5 includes an oil storage cylinder 501, a rubber air bag 502, a movable piston block 503 and a second power spring 504;

[0047] The oil storage cylinder 501 is arranged at the top of the maintenance channel door body 2 and is located on the inner side of the rotating rod 401 and the maintenance channel door body 2. The rubber air bag 502 is arranged at the bottom of the inner cavity of the oil storage cylinder 501. The movable piston block 503 is arranged at the top of the rubber air bag 502. The top of the movable piston block 503 is elastically connected to the inner wall of the oil storage cylinder 501 through the second power spring 504. The middle part of the top end of the oil storage cylinder 501 is fixedly connected to the oil guide pipe valve 6.

[0048] By adopting the above solution, the rubber air bag 502 is provided. When the rubber air bag 502 is contracted by the cold air, the elastic force of the second power spring 504 can be smoothly released, thereby assisting in pushing the entire movable piston block 503 downward.

[0049] like Figure 6 As shown, the delivery assembly 7 includes a connecting pipe 701, a delivery groove 702, a one-way valve column 703 and a first connecting spring 704;

[0050] The connecting pipe 701 is fixedly connected between the oil storage cylinder 501 and the maintenance channel door body 2, and is located at the bottom of the movable piston block 503. The connecting pipe 701 is connected to the heating chamber 801 through the conveying groove 702. The one-way valve column 703 is movably installed on one side of the inner cavity of the conveying groove 702. The one-way valve column 703 is elastically connected to the inner wall of the conveying groove 702 through the first connecting spring 704.

[0051] The above scheme is adopted: by providing a one-way valve column 703, when the lubricating oil at the top of the inner cavity of the oil storage cylinder 501 enters into the other side of the one-way valve column 703 through the connecting pipe 701, it will squeeze and push the one-way valve column 703 to move to one side, so that the one-way valve column 703 opens, and then the lubricating oil will flow into the inner cavity of the heating chamber 801 in one direction through the conveying groove 702.

[0052] like Figure 5 and Figure 8 As shown, the driving assembly 9 includes a driving water wheel 901, a first bevel gear 902, a second bevel gear 903 and a linkage block 904;

[0053] The driving water wheel 901 is movably sleeved inside the maintenance channel door body 2, and one end extends to the inside of the conveying trough 702, the first bevel gear 902 is fixedly sleeved on the other end surface of the driving water wheel 901, the second bevel gear 903 is movably sleeved on the inner wall of the maintenance channel door body 2, and is located on one side of the first bevel gear 902, the linkage block 904 is fixedly sleeved on one end of the second bevel gear 903, and the protruding part of one end of the linkage block 904 extends to the inner wall of the fixed block 803, and the surfaces of the first bevel gear 902 and the second bevel gear 903 are meshed.

[0054] The above scheme is adopted: by providing a linkage block 904, when the driving water wheel 901 rotates, the first bevel gear 902 drives the second bevel gear 903 to rotate, and then the linkage block 904 rotates synchronously as a whole, so that the protruding part pulls the fixed block 803 and the movable ring 802 to move back and forth left and right.

[0055] like Fig. 9 and Fig.10 As shown, a lubrication cavity 10 is opened inside the maintenance channel door body 2 between the movable ring 802 and the driving hand wheel 301 , and a blocking component 11 is arranged inside the maintenance channel door body 2 at the middle of the top end of the lubrication cavity 10 .

[0056] The above solution is adopted: through the design of the lubrication chamber 10, the lubricating oil flowing in the heating chamber 801 can flow into the lubrication chamber 10 for storage, and the contact part between the driving hand wheel 301 and the maintenance channel door body 2 can be lubricated to reduce friction and improve rotation smoothness.

[0057] like Fig. 9 and Fig.10 As shown, the blocking assembly 11 includes a shielding plate 1101, a first pneumatic cylinder 1102 and a first piston rod 1103;

[0058] The baffle plate 1101 is movably installed inside the maintenance passage door body 2 and is located on both sides of the middle of the top of the lubrication chamber 10. The first pneumatic cylinder 1102 is fixedly installed inside the maintenance passage door body 2 and is located outside the baffle plate 1101. The first piston rod 1103 is movably installed in the inner cavity of the first pneumatic cylinder 1102, and the inner end is fixedly connected to the baffle plate 1101.

[0059] By adopting the above solution: by providing a baffle plate 1101, when the air pressure outside the inner cavity of the first pneumatic cylinder 1102 increases, the baffle plate 1101 can be pushed to move toward each other, so as to block the position where the middle of the top of the lubrication cavity 10 is connected to the heating cavity 801.

[0060] like Fig. 9 and Fig.10 As shown, a pneumatic assembly 12 located outside the lubrication cavity 10 is provided inside the maintenance passage door body 2, and the pneumatic assembly 12 includes a second pneumatic cylinder 1201, a second piston rod 1202 and a second connecting spring 1203;

[0061] The second pneumatic cylinder 1201 is fixedly installed inside the maintenance passage door body 2 and is located in the middle of the outer side of the lubrication cavity 10. The second piston rod 1202 is movably installed on the inner wall of the second pneumatic cylinder 1201. The outer side of the second piston rod 1202 is elastically connected to the inner wall of the second pneumatic cylinder 1201 through the second connecting spring 1203.

[0062] By adopting the above solution, the second connecting spring 1203 is provided, and when the elastic force of the second connecting spring 1203 is released, the two second piston rods 1202 can be pushed to move toward each other.

[0063] like Fig. 9 As shown, the second pneumatic cylinder 1201 is connected to the first pneumatic cylinder 1102 through the ventilation channel 13.

[0064] By adopting the above solution, the ventilation channel 13 is provided, and when the second piston rod 1202 moves in opposite directions, the gas outside the inner cavity of the second pneumatic cylinder 1201 can be pushed into the outer inner cavity of the first pneumatic cylinder 1102 through the second connecting spring 1203 .

[0065] The working principle and use process of the present invention:

[0066] First, when the rotating rod 401 and the locking block 402 are solidified as a whole due to the cold air, the cold air will also be transmitted to the position of the rubber air bag 502 inside the oil storage cylinder 501, so that the rubber air bag 502 will shrink due to the cold air. At this time, the elastic force of the second power spring 504 will be released smoothly, so as to push the movable piston block 503 as a whole downward until the top of the inner cavity of the oil storage cylinder 501 is connected with the connecting pipe 701, and the lubricating oil in the inner cavity of the oil storage cylinder 501 will pass through the connecting pipe 701 smoothly and push the one-way valve column 703 to open, and then the lubricating oil will flow into the delivery groove 702.

[0067] Afterwards, the lubricating oil flows in the conveying groove 702, which can smoothly drive the driving water wheel 901 to rotate, and can drive the first bevel gear 902 to rotate synchronously as a whole. At this time, due to the meshing relationship between the surfaces of the first bevel gear 902 and the second bevel gear 903, the second bevel gear 903 can be driven to rotate, and then the linkage block 904 can be driven to rotate so that the protruding part at the other end can move in a circle on the inner wall of the fixed block 803, and then the fixed block 803 and the movable ring 802 can be pulled to move back and forth inside the heating chamber 801, and then some lubricating oil can be pushed into the lubrication chamber 10 for replenishment.

[0068] Then, when the lubricating oil inside the lubrication chamber 10 is full, it will push the second piston rod 1202 to move in opposite directions, and then push the gas in the inner cavity of the second pneumatic cylinder 1201 to be introduced into the first pneumatic cylinder 1102 through the ventilation channel 13. At this time, the air pressure in the inner cavity of the baffle plate 1101 can be increased to push the two baffle plates 1101 to move towards each other to block the top opening of the lubrication chamber 10, and then the heating chamber 801 can be successfully filled with lubricating oil. Finally, the movable ring 802 moves back and forth and left and right to squeeze and push the lubricating oil to generate high temperature through friction, so as to heat up the position of the locking block 402 and release the solidified state, so as to facilitate the subsequent smooth driving of the locking assembly 4 to release the fixation of the driving handwheel 301.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] 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 ship maintenance passage door, characterized in that: comprising a door frame (1); The inspection passage door body (2) is hinged to one side of the door frame (1); A door lock mechanism (3) is arranged in the middle of the inspection passage door body (2), and a locking assembly (4) is arranged at one end; A trigger assembly (5) is arranged on the top of the inspection passage door body (2) and is located between the locking assembly (4) and the inspection passage door body (2); A conveying assembly (7) is arranged inside the inspection passage door body (2) and on one side of the trigger assembly (5); A heating assembly (8), the heating assembly (8) comprising a heating chamber (801), the heating chamber (801) being opened in the inner cavity of the inspection channel door body (2) and being located outside the locking assembly (4), a movable ring (802) being movably installed on the left side of the inner cavity of the heating chamber (801), a fixing block (803) being arranged on the top of the movable ring (802), and a driving assembly (9) being arranged inside the inspection channel door body (2) and being located between the conveying assembly (7) and the heating chamber (801).

2. The ship maintenance passage door according to claim 1, characterized in that: The door lock mechanism (3) comprises a driving hand wheel (301), a fixing plate (302), a locking blocking rod (303), a first power spring (304) and a driving push plate (305); The driving hand wheel (301) is movably sleeved on the middle part of the maintenance passage door body (2); the fixed plate (302) is fixedly installed on the middle part of the other side of the maintenance passage door body (2); the locking baffle rod (303) is movably installed on the back side of the maintenance passage door body (2), and the inner end is slidably sleeved on the fixed plate (302); the locking baffle rod (303) is elastically connected to the fixed plate (302) through a first power spring (304); and the driving push plate (305) is fixedly sleeved on the surface of the driving hand wheel (301) and the inner side of the fixed plate (302).

3. The ship maintenance passage door according to claim 1, characterized in that: The locking assembly (4) comprises a rotating rod (401), a locking block (402), a rotating shaft (403) and a locking slot (404); The rotating rod (401) is threadedly sleeved inside one end of the driving hand wheel (301); the locking block (402) is movably mounted in the inner cavity of the driving hand wheel (301); the rotating shaft (403) is fixedly mounted on one end of the rotating rod (401) and is located inside the locking block (402); and the locking slot (404) is opened inside the driving hand wheel (301) and is located on one side of the locking block (402).

4. The ship maintenance passage door according to claim 1, characterized in that: The trigger assembly (5) comprises an oil storage cylinder (501), a rubber air bag (502), a movable piston block (503) and a second power spring (504); The oil storage cylinder (501) is arranged at the top of the maintenance channel door body (2) and is located on the inner side of the rotating rod (401) and the maintenance channel door body (2); the rubber air bag (502) is arranged at the bottom of the inner cavity of the oil storage cylinder (501); the movable piston block (503) is arranged at the top of the rubber air bag (502); the top of the movable piston block (503) is elastically connected to the inner wall of the oil storage cylinder (501) through a second power spring (504); and the middle part of the top end of the oil storage cylinder (501) is fixedly connected to an oil guide pipe valve (6).

5. The ship maintenance passage door according to claim 1, characterized in that: The conveying assembly (7) comprises a connecting pipe (701), a conveying groove (702), a one-way valve column (703) and a first connecting spring (704); The connecting pipe (701) is fixedly connected between the oil storage cylinder (501) and the inspection channel door body (2), and is located at the bottom of the movable piston block (503). The connecting pipe (701) is connected to the heating chamber (801) through the conveying groove (702). The one-way valve column (703) is movably installed on one side of the inner cavity of the conveying groove (702). The one-way valve column (703) is elastically connected to the inner wall of the conveying groove (702) through a first connecting spring (704).

6. The ship maintenance passage door according to claim 1, characterized in that: The driving assembly (9) comprises a driving water wheel (901), a first bevel gear (902), a second bevel gear (903) and a linkage block (904); The driving water wheel (901) is movably sleeved inside the maintenance channel door body (2), and one end of the driving water wheel (901) extends to the inside of the conveying trough (702). The first bevel gear (902) is fixedly sleeved on the other end surface of the driving water wheel (901). The second bevel gear (903) is movably sleeved on the inner wall of the maintenance channel door body (2) and is located on one side of the first bevel gear (902). The linkage block (904) is fixedly sleeved on one end of the second bevel gear (903). The protruding portion of one end of the linkage block (904) extends to the inner wall of the fixed block (803). The surfaces of the first bevel gear (902) and the second bevel gear (903) are meshed.

7. The ship maintenance passage door according to claim 1, characterized in that: A lubrication cavity (10) is provided inside the maintenance passage door body (2) between the movable ring (802) and the driving hand wheel (301), and a blocking component (11) is provided inside the maintenance passage door body (2) at the middle of the top end of the lubrication cavity (10).

8. The ship maintenance passage door according to claim 7, characterized in that: The blocking assembly (11) comprises a shielding plate (1101), a first pneumatic cylinder (1102) and a first piston rod (1103); The baffle plate (1101) is movably mounted inside the maintenance channel door body (2) and is located on both sides of the middle of the top end of the lubrication cavity (10); the first pneumatic cylinder (1102) is fixedly mounted inside the maintenance channel door body (2) and is located outside the baffle plate (1101); the first piston rod (1103) is movably mounted in the inner cavity of the first pneumatic cylinder (1102), and the inner end is fixedly connected to the baffle plate (1101).

9. The ship maintenance passage door according to claim 1, characterized in that: The interior of the inspection passage door body (2) is provided with a pneumatic assembly (12) located outside the lubrication cavity (10), and the pneumatic assembly (12) includes a second pneumatic cylinder (1201), a second piston rod (1202) and a second connecting spring (1203); The second pneumatic cylinder (1201) is fixedly installed inside the maintenance channel door body (2) and is located in the middle of the outer side of the lubrication cavity (10). The second piston rod (1202) is movably installed on the inner wall of the second pneumatic cylinder (1201). The outer side of the second piston rod (1202) is elastically connected to the inner wall of the second pneumatic cylinder (1201) via a second connecting spring (1203).

10. The ship maintenance passage door according to claim 9, characterized in that: The second pneumatic cylinder (1201) is connected to the first pneumatic cylinder (1102) via a ventilation channel (13).

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