A ship corner access door

Abstract

This invention belongs to the field of ship maintenance technology and discloses a ship's internal corner maintenance door, including a maintenance door body and a ship hull. A baffle is rotatably connected to the top of the maintenance door body, a locking assembly is provided at the top of the maintenance door body, a locking assembly is slidably connected inside the maintenance door body, a pressing assembly is movably connected inside the maintenance door body, and a sealing assembly is fixedly connected to the bottom of the pressing assembly. This invention facilitates the quick locking or opening of the maintenance door by setting the locking assembly and locking block and other structures. By pulling the handle, the handle moves the sliding push plate, which in turn pushes the first and second moving frames to move and unfold through the rotating push rod. By setting the pressing assembly and sealing assembly and other structures, the connection between the maintenance door body and the ship hull is easily sealed. The main airbag is compressed downward by the pressing support plate and the pressing rod.

Description

Technical Field

[0001] This invention belongs to the field of ship maintenance technology, specifically a ship's internal corner inspection door. Background Technology

[0002] In ship structures, corner access doors are installed in areas that are complex, prone to water or dirt accumulation, and may require special inspection and maintenance. These doors facilitate access to areas that are difficult to directly reach for inspection, repair, or maintenance. Since these areas are generally small, the access doors need to be easy to open and lock, and therefore need to have a certain degree of sealing.

[0003] Traditional inspection doors are generally either flip-type or sliding type. In this location, due to insufficient space, these inspection doors are difficult to open. Separate inspection doors that are fixed with bolts are also very troublesome to open and close. Therefore, a new type of ship's internal corner inspection door is proposed. Summary of the Invention

[0004] To address the problem mentioned in the background art that traditional inspection doors are difficult and cumbersome to open at inside corners, this invention provides a ship inside corner inspection door.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ship's inner corner inspection door, comprising an inspection door body and a ship hull, wherein a baffle is rotatably connected to the top of the inspection door body, a latch assembly is provided at the top of the inspection door body, a locking assembly is slidably connected inside the inspection door body, a pressing assembly is movably connected inside the inspection door body, a sealing assembly is fixedly connected to the bottom of the pressing assembly, a bottom plate is fixedly connected to the bottom of the inspection door body, and a fixing groove and a sealing groove are provided inside the ship hull;

[0006] The locking assembly includes a locking block and a limiting groove. A spring piece is fixedly connected to the side of the locking block, and an actuating groove is formed inside the locking block.

[0007] Preferably, the limiting groove is formed on the top of the inspection door, the latch block is engaged with the baffle, the spring piece is fixedly connected to the inspection door, the latch block is slidably connected inside the limiting groove, and the top shape of the latch block matches the limiting groove.

[0008] Preferably, the locking assembly includes a sliding push plate, a handle is fixedly connected to the top of the sliding push plate, a pair of rotating push rods are rotatably connected to one end of the sliding push plate, a first movable frame and a second movable frame are rotatably connected to the ends of the rotating push rods that are far apart from each other, a pair of locking blocks are fixedly connected to the sides of the first movable frame and the second movable frame that are far apart from each other, and a pressing slope is formed in the middle of the pair of locking blocks.

[0009] Preferably, the inspection door has an internal cavity, a pair of fixing holes in the middle of the inspection door are connected to the cavity, the side cross-section of the inspection door is T-shaped, the inspection door is slidably connected to the hull, the fixing groove is on the same horizontal plane as the first moving frame and the second moving frame, and the sealing groove is on the same horizontal plane as the sealing assembly.

[0010] Preferably, the sliding push plate is located in the central cavity of the inspection door body, the sliding push plate is slidably connected to the inspection door body, the handle is located on the lower side of the baffle, the handle is slidably connected to the inspection door body, and the handle and the rotating push rod are respectively located at both ends of the sliding push plate.

[0011] Preferably, the first movable frame and the second movable frame are slidably connected, both of which abut against the sliding push plate. The first movable frame and the second movable frame are slidably connected inside the inspection door body. The ends of the first movable frame and the second movable frame away from the rotating push rod are respectively engaged with the fixing hole in the middle of the inspection door body. The locking block is slidably connected inside the fixing groove.

[0012] Preferably, the pressing assembly includes a pressing support plate, pressing rods are linearly distributed in the middle of the pressing support plate, pressing protrusions are fixedly connected to both ends of the pressing support plate, and springs are linearly distributed at the bottom of the pressing protrusions.

[0013] Preferably, the lower pressure support plate is slidably connected to the lower end of the inspection door body, the lower pressure support plate is perpendicular to the first moving frame and the second moving frame, the lower pressure protrusion is slidably connected to the inspection door body and extends into the middle cavity of the inspection door body, the top of the lower pressure protrusion is provided with an inclined surface that matches the extrusion inclined surface, the top of the lower pressure protrusion abuts against the first moving frame and the second moving frame respectively, and the bottom of the spring is fixedly connected to the inspection door body.

[0014] Preferably, the sealing assembly includes a main airbag, with inflatable airbags fixedly connected to both ends of the main airbag, and an elastic sealing strip fixedly connected to the outside of the inflatable airbag;

[0015] The upper middle part of the main airbag is fixedly connected to the lower pressure support plate, the lower end of the main airbag is fixedly connected to the base plate, and the inflatable airbag and the elastic sealing strip are snapped into the inside of the sealing groove.

[0016] Preferably, the handle drives the sliding push plate to move, so that the sliding push plate pushes the first and second moving frames to move and unfold through the rotating push rod, so that the locking block engages with the fixing groove. At the same time, the squeezing inclined surface squeezes the pressing protrusion and the pressing support plate to move downward, so that the pressing support plate and the pressing rod squeeze the main airbag to contract, so that the expanding airbag expands and pushes the elastic sealing strip to move and unfold to engage with the sealing groove. At the same time, the elastic sealing strip presses downward to push the maintenance door body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] This invention facilitates the quick locking or unlocking of the inspection door by setting up locking components and locking blocks, etc. By pulling the handle, the handle moves the sliding push plate, which in turn pushes the first and second moving frames to unfold by rotating the push rod, so that the locking block engages with the fixing groove, thereby quickly fixing the inspection door to the hull. When it needs to be opened, it can be pulled in the opposite direction.

[0019] This invention facilitates the sealing of the connection between the inspection door and the hull by setting up a combination of structures such as a pressure component and a sealing component. The main airbag is compressed downward by the pressure support plate and the pressure rod, causing the main airbag to contract. This allows air inside the main airbag to be delivered into the expansion airbag, which in turn pushes the elastic sealing strip out from inside the inspection door and into the sealing groove. The elastic sealing strip seals the connection between the inspection door and the hull, thereby preventing water or dirt from entering.

[0020] This invention facilitates the stability of the connection between the inspection door and the hull by setting up locking components and sealing components. At the same time, the elastic sealing strip pushes the inspection door downward, causing the inspection door to move further into the hull. This causes the locking block to be pressed downward by the inspection door, thereby making the connection between the inspection door and the hull more secure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a cross-sectional view of the inspection door body of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall locking component of the present invention;

[0024] Figure 4 This is an enlarged cross-sectional view of the locking assembly of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a cross-sectional view of the connection between the inspection door and the hull of the present invention;

[0027] Figure 7 This is a side sectional view of the inspection door body of the present invention;

[0028] Figure 8 This is a side sectional view of the pressing component of the present invention;

[0029] Figure 9 This is a schematic diagram of the overall disassembly of the present invention.

[0030] In the diagram: 1. Inspection door; 2. Baffle; 3. Locking assembly; 31. Locking block; 32. Spring; 33. Actuating groove; 34. Limiting groove; 4. Locking assembly; 41. Sliding push plate; 42. Handle; 43. Rotating push rod; 44. First moving frame; 45. Second moving frame; 46. Locking block; 47. Extrusion slope; 5. Pressing assembly; 51. Pressing support plate; 52. Pressing rod; 53. Pressing protrusion; 54. Spring; 6. Sealing assembly; 61. Main airbag; 62. Inflatable airbag; 63. Elastic sealing strip; 7. Base plate; 8. Hull; 9. Fixing groove; 10. Sealing groove. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 9 As shown, the present invention provides a ship's inner corner inspection door, including an inspection door body 1 and a ship hull 8. A baffle 2 is rotatably connected to the top of the inspection door body 1, a latch assembly 3 is provided at the top of the inspection door body 1, a locking assembly 4 is slidably connected inside the inspection door body 1, a pressing assembly 5 is movably connected inside the inspection door body 1, a sealing assembly 6 is fixedly connected to the bottom of the pressing assembly 5, a bottom plate 7 is fixedly connected to the bottom of the inspection door body 1, and a fixing groove 9 and a sealing groove 10 are provided inside the ship hull 8.

[0033] The locking assembly 3 includes a locking block 31 and a limiting groove 34. A spring piece 32 is fixedly connected to the side of the locking block 31, and a toggle groove 33 is opened inside the locking block 31.

[0034] The above solution is adopted as follows: by pulling the handle 42, the handle 42 moves the sliding push plate 41, which in turn pushes the first moving frame 44 and the second moving frame 45 to move and unfold through the rotating push rod 43, so that the locking block 46 engages with the fixing groove 9. At the same time, the pressing slope 47 abuts against the pressing protrusion 53, pressing the pressing protrusion 53 downward, which pushes the pressing support plate 51 downward. The pressing support plate 51 and the pressing rod 52 press the main airbag 61 downward, causing the main airbag 61 to contract. This allows the air inside the main airbag 61 to be transported into the inflatable airbag 62, which pushes the elastic sealing strip 63 to extend from the inside of the inspection door 1 and into the sealing groove 10. The elastic sealing strip 63 seals the connection between the inspection door 1 and the hull 8, thus completing the fixing and sealing of the inspection door 1. In this way, the inspection door 1 and the hull 8 can be fixed and sealed at the same time.

[0035] like Figure 2 , Figure 5 and Figure 6 As shown, the limiting groove 34 is opened on the top of the inspection door 1, the locking block 31 is engaged with the baffle 2, the spring piece 32 is fixedly connected to the inspection door 1, the locking block 31 is slidably connected inside the limiting groove 34, and the top shape of the locking block 31 matches the limiting groove 34.

[0036] The above solution is adopted as follows: by setting a locking assembly 3, the locking block 31 is engaged with the baffle 2 to fix the baffle 2. By setting a spring piece 32, the spring piece 32 pushes the locking block 31, so that the locking block 31 is always located on the side close to the baffle 2. The actuating groove 33 opened in the middle of the locking block 31 is slidably connected to the inside of the limiting groove 34. The operator can use a tool or a flathead screwdriver to insert into the actuating groove 33 to move the locking block 31 and release it from the baffle 2, so that the baffle 2 can be quickly engaged and fixed.

[0037] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the inspection door 1 has a cavity inside, and a pair of fixing holes are provided in the middle of the inspection door 1 and are connected to the cavity. The side cross-section of the inspection door 1 is T-shaped. The inspection door 1 is slidably connected to the hull 8. The fixing groove 9 is on the same horizontal plane as the first moving frame 44 and the second moving frame 45. The sealing groove 10 is on the same horizontal plane as the sealing assembly 6.

[0038] The above solution is adopted as follows: by opening a cavity inside the inspection door 1, the locking component 4 can slide easily in the middle of the inspection door 1. The fixing hole opened in the middle of the inspection door 1 is used to limit the first moving frame 44 and the second moving frame 45. By setting the inspection door 1 to slide with the hull 8, it is easy to take out and put in the inspection door 1. The fixing groove 9 and the sealing groove 10 are set to fix the inspection door 1 to the hull 8.

[0039] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the locking assembly 4 includes a sliding push plate 41, a handle 42 fixedly connected to the top of the sliding push plate 41, a pair of rotating push rods 43 rotatably connected to one end of the sliding push plate 41, a first moving frame 44 and a second moving frame 45 rotatably connected to the ends of the rotating push rods 43 that are far apart from each other, and a pair of locking blocks 46 fixedly connected to the sides of the first moving frame 44 and the second moving frame 45 that are far apart from each other, and a pressing slope 47 is provided in the middle of the pair of locking blocks 46.

[0040] Using the above solution: By setting the locking component 4, the handle 42 drives the sliding push plate 41 to move. At this time, one end of the first moving frame 44 and the second moving frame 45 is located inside the fixing hole in the middle of the inspection door body 1. Therefore, the sliding push plate 41 first pushes the first moving frame 44 and the second moving frame 45 to move by rotating the push rod 43. Then, the end of the first moving frame 44 and the second moving frame 45 near the rotating push rod 43 abuts against the vertical inner wall of the inspection door body 1. At this time, the sliding push plate 41 continues to move, which can push the rotating push rod 43 to flip and unfold to both sides. The rotating push rod 43 pushes the first moving frame 44 and the second moving frame 45 to extend to both sides, so that the locking block 46 is engaged with the fixing groove 9.

[0041] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the sliding push plate 41 is located in the cavity in the middle of the inspection door body 1. The sliding push plate 41 is slidably connected to the inspection door body 1. The handle 42 is located on the lower side of the baffle 2. The handle 42 is slidably connected to the inspection door body 1. The handle 42 and the rotating push rod 43 are located at the two ends of the sliding push plate 41, respectively. The first moving frame 44 and the second moving frame 45 are slidably connected. The first moving frame 44 and the second moving frame 45 both abut against the sliding push plate 41. The first moving frame 44 and the second moving frame 45 are slidably connected inside the inspection door body 1. The ends of the first moving frame 44 and the second moving frame 45 away from the rotating push rod 43 are respectively engaged with the fixing hole in the middle of the inspection door body 1. The locking block 46 is slidably connected inside the fixing groove 9.

[0042] The above solution is adopted as follows: By setting a sliding push plate 41 and a handle 42, the handle 42 can be pulled to move the sliding push plate 41, thereby controlling the opening and closing of the first moving frame 44 and the second moving frame 45. Setting the handle 42 and the rotating push rod 43 at both ends of the sliding push plate 41 can reduce the distance that the handle 42 needs to be pulled. By setting the first moving frame 44 and the second moving frame 45, the first moving frame 44 and the second moving frame 45 can drive the locking block 46 to move, so as to complete the locking block 46 and the fixing groove 9, or to release the locking block 46 and the fixing groove 9. The extrusion slope 47 set in the middle of the pair of locking blocks 46 can abut against the pressing protrusion 53 when the first moving frame 44 and the second moving frame 45 move, and press the pressing protrusion 53 downward.

[0043] like Figure 7 , Figure 8 and Figure 9As shown, the pressing assembly 5 includes a pressing support plate 51, with pressing rods 52 linearly distributed in the middle of the pressing support plate 51. Pressing protrusions 53 are fixedly connected to both ends of the pressing support plate 51. Springs 54 are linearly distributed at the bottom of the pressing protrusions 53. The pressing support plate 51 is slidably connected to the lower end of the inspection door 1. The pressing support plate 51 is perpendicular to the first moving frame 44 and the second moving frame 45. The pressing protrusions 53 are slidably connected to the inspection door 1 and extend into the middle cavity of the inspection door 1. The top of the pressing protrusions 53 has an inclined surface that matches the extrusion inclined surface 47. The top of the pressing protrusions 53 abuts against the first moving frame 44 and the second moving frame 45 respectively. The bottom of the springs 54 is fixedly connected to the inspection door 1.

[0044] The above scheme is adopted as follows: By setting the pressing component 5, the pressing support plate 51 and the pressing rod 52 press down on the main airbag 61 to make the main airbag 61 contract, and the pressing protrusion 53 is slidably connected to the inspection door 1 and extends into the middle cavity of the inspection door 1, so that the pressing slope 47 can press the pressing protrusion 53 downward. The pressing support plate 51, the first moving frame 44 and the second moving frame 45 are set to be perpendicular to each other, so that when the first moving frame 44 and the second moving frame 45 move, the pressing protrusion 53 is pressed by the pressing slope 47. By opening a slope on the top of the pressing protrusion 53 that matches the pressing slope 47, the pressing protrusion 53 can be pressed down by the pressing slope 47, and then the pressing protrusion 53 presses the pressing support plate 51 and the pressing rod 52 to move downward. By setting the spring 54, it is easy to push the pressing protrusion 53 into the middle cavity of the inspection door 1.

[0045] like Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the sealing assembly 6 includes a main airbag 61, with an inflatable airbag 62 fixedly connected to both ends of the main airbag 61, and an elastic sealing strip 63 fixedly connected to the outside of the inflatable airbag 62.

[0046] The upper middle part of the main airbag 61 is fixedly connected to the lower pressure support plate 51, the lower end of the main airbag 61 is fixedly connected to the base plate 7, and the inflatable airbag 62 and the elastic sealing strip 63 are snapped into the inside of the sealing groove 10.

[0047] The above solution is adopted: by setting the sealing component 6, the connection between the inspection door 1 and the hull 8 can be sealed and fixed. The main airbag 61 is compressed and contracted by the pressure plate 51 and the pressure rod 52, so that the air inside the main airbag 61 is transported into the inflatable airbag 62. Then, the inflatable airbag 62 pushes the elastic sealing strip 63 out from the inside of the inspection door 1 and into the inside of the sealing groove 10, so that the elastic sealing strip 63 seals the connection between the inspection door 1 and the hull 8. At the same time, the inflatable airbag 62 and the elastic sealing strip 63 can press the inspection door 1 downward, so that the inspection door 1 and the hull 8 are more tightly engaged.

[0048] like Figures 1 to 9 As shown, the handle 42 drives the sliding push plate 41 to move, so that the sliding push plate 41 pushes the first moving frame 44 and the second moving frame 45 to move and unfold through the rotating push rod 43, so that the locking block 46 engages with the fixing groove 9. At the same time, the squeezing inclined surface 47 squeezes the pressing protrusion 53 and the pressing support plate 51 to move downward, so that the pressing support plate 51 and the pressing rod 52 squeeze the main airbag 61 to contract, so that the inflating airbag 62 expands and pushes the elastic sealing strip 63 to move and unfold and engage with the sealing groove 10. At the same time, the elastic sealing strip 63 pushes the inspection door 1 downward.

[0049] The above scheme is adopted as follows: the staff pulls the handle 42 to move the sliding push plate 41, and then the sliding push plate 41 pushes the first moving frame 44 and the second moving frame 45 to move by rotating the push rod 43. Then, the push rod 43 is rotated to unfold to both sides, so that the first moving frame 44 and the second moving frame 45 push the locking block 46 to move to both sides, so that the locking block 46 engages with the fixing groove 9. At the same time, the squeezing inclined surface 47 squeezes the pressing protrusion 53 and the pressing support plate 51 to move downward, so that the pressing support plate 51 and the pressing rod 52 squeeze the main airbag 61 to contract, so that the air inside the main airbag 61 is delivered into the inflatable airbag 62, so that the inflatable airbag 62 expands and pushes the elastic sealing strip 63 to move and unfold to engage with the sealing groove 10. At the same time, the elastic sealing strip 63 pushes the inspection door 1 downward.

[0050] The working principle and usage process of this invention are as follows: When locking is required, a worker first uses a tool or a flathead screwdriver to insert into the actuating groove 33 to move the locking block 31, disengaging it from the baffle 2. Then, the baffle 2 is opened outwards, and the inspection door 1 is placed inside the hull 8. Then, the handle 42 is pulled, causing the handle 42 to move the sliding push plate 41. The sliding push plate 41 first pushes the first moving frame 44 and the second moving frame 45 to move through the rotating push rod 43, so that the ends of the first moving frame 44 and the second moving frame 45 closest to the rotating push rod 43 abut against the vertical inner wall of the inspection door 1. Then, the sliding push plate 41 continues to move, pushing the rotating push rod 43 to flip and unfold to both sides, and the rotating push rod 43 pushes the first moving frame 44 and the second moving frame 45 to move through the rotating push rod 43. The first movable frame 44 and the second movable frame 45 extend to both sides, so that the locking block 46 engages with the fixing groove 9. When the first movable frame 44 and the second movable frame 45 move, the pressing inclined surface 47 abuts against the pressing protrusion 53, pressing the pressing protrusion 53 downward, so that the pressing protrusion 53 pushes the pressing support plate 51 downward. The pressing support plate 51 and the pressing rod 52 press the main airbag 61 downward, so that the main airbag 61 contracts, so that the air inside the main airbag 61 is delivered into the inflatable airbag 62, so that the inflatable airbag 62 pushes the elastic sealing strip 63 to extend from the inside of the inspection door 1 into the inside of the sealing groove 10. The elastic sealing strip 63 seals the connection between the inspection door 1 and the hull 8, thereby completing the fixing and sealing of the inspection door 1.

[0051] When it is necessary to open the inspection door 1, first open the baffle 2, and then pull the handle 42 in the opposite direction to reverse the above steps and disconnect the inspection door 1 from the hull 8.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ship's inner corner inspection door, comprising an inspection door body (1) and a ship hull (8), characterized in that: The inspection door (1) is rotatably connected to the top of a baffle (2), the inspection door (1) is provided with a latch assembly (3) at the top, the inspection door (1) is slidably connected to a locking assembly (4) inside, the inspection door (1) is movably connected to a pressing assembly (5) inside, the pressing assembly (5) is fixedly connected to a sealing assembly (6) at the bottom, the inspection door (1) is fixedly connected to a bottom plate (7), and the hull (8) is provided with a fixing groove (9) and a sealing groove (10) inside. The locking assembly (3) includes a locking block (31) and a limiting groove (34). A spring piece (32) is fixedly connected to the side of the locking block (31), and a toggle groove (33) is opened inside the locking block (31). The locking assembly (4) includes a sliding push plate (41), a handle (42) is fixedly connected to the top of the sliding push plate (41), a pair of rotating push rods (43) are rotatably connected to one end of the sliding push plate (41), a first moving frame (44) and a second moving frame (45) are rotatably connected to the ends of the rotating push rods (43) that are far apart from each other, and a pair of locking blocks (46) are fixedly connected to the sides of the first moving frame (44) and the second moving frame (45) that are far apart from each other, and a pressing slope (47) is provided in the middle of the pair of locking blocks (46). The pressing assembly (5) includes a pressing support plate (51), a pressing rod (52) is linearly distributed in the middle of the pressing support plate (51), a pressing protrusion (53) is fixedly connected to both ends of the pressing support plate (51), and a spring (54) is linearly distributed at the bottom of the pressing protrusion (53). The sealing assembly (6) includes a main airbag (61), with an inflatable airbag (62) fixedly connected to both ends of the main airbag (61), and an elastic sealing strip (63) fixedly connected to the outside of the inflatable airbag (62). The upper middle part of the main airbag (61) is fixedly connected to the lower pressure support plate (51), the lower end of the main airbag (61) is fixedly connected to the bottom plate (7), and the inflatable airbag (62) and the elastic sealing strip (63) are snapped into the inside of the sealing groove (10). The handle (42) drives the sliding push plate (41) to move, so that the sliding push plate (41) pushes the first moving frame (44) and the second moving frame (45) to move and unfold by rotating the push rod (43), so that the locking block (46) engages with the fixing groove (9), and at the same time, the squeezing slope (47) squeezes the pressing protrusion (53) and the pressing support plate (51) to move downward, so that the pressing support plate (51) and the pressing rod (52) squeeze the main airbag (61) to contract, so that the inflatable airbag (62) expands and pushes the elastic sealing strip (63) to move and unfold and engage with the sealing groove (10), while the elastic sealing strip (63) pushes the inspection door body (1) downward.

2. The ship's internal corner inspection door according to claim 1, characterized in that: The limiting groove (34) is opened on the top of the inspection door (1), the locking block (31) is engaged with the baffle (2), the spring piece (32) is fixedly connected to the inspection door (1), the locking block (31) is slidably connected inside the limiting groove (34), and the top shape of the locking block (31) matches the limiting groove (34).

3. The ship's internal corner inspection door according to claim 1, characterized in that: The inspection door (1) has an internal cavity. The inspection door (1) has a pair of fixing holes in the middle that are connected to the cavity. The inspection door (1) has a T-shaped cross-section on its side. The inspection door (1) is slidably connected to the hull (8). The fixing groove (9) is on the same horizontal plane as the first moving frame (44) and the second moving frame (45). The sealing groove (10) is on the same horizontal plane as the sealing assembly (6).

4. The ship's internal corner inspection door according to claim 1, characterized in that: The sliding push plate (41) is located in the middle cavity of the inspection door body (1). The sliding push plate (41) is slidably connected to the inspection door body (1). The handle (42) is located on the lower side of the baffle (2). The handle (42) is slidably connected to the inspection door body (1). The handle (42) and the rotating push rod (43) are located at the two ends of the sliding push plate (41) respectively.

5. The ship's internal corner inspection door according to claim 3, characterized in that: The first movable frame (44) and the second movable frame (45) are slidably connected. Both the first movable frame (44) and the second movable frame (45) abut against the sliding push plate (41). The first movable frame (44) and the second movable frame (45) are slidably connected inside the inspection door body (1). The ends of the first movable frame (44) and the second movable frame (45) away from the rotating push rod (43) are respectively engaged with the fixing hole in the middle of the inspection door body (1). The locking block (46) is slidably connected inside the fixing groove (9).

6. The ship's internal corner inspection door according to claim 1, characterized in that: The lower pressure support plate (51) is slidably connected to the lower end of the inspection door (1). The lower pressure support plate (51) is perpendicular to the first moving frame (44) and the second moving frame (45). The lower pressure protrusion (53) is slidably connected to the inspection door (1) and extends into the middle cavity of the inspection door (1). The top of the lower pressure protrusion (53) is provided with an inclined surface that matches the extrusion inclined surface (47). The top of the lower pressure protrusion (53) abuts against the first moving frame (44) and the second moving frame (45) respectively. The bottom of the spring (54) is fixedly connected to the inspection door (1).

Images