A hatch clock docking locking device

Abstract

The application discloses a cabin clock butt joint locking device and belongs to the technical field of butt joint equipment. The device comprises butt joint pipes one and two, a butt joint mechanism and a locking mechanism. Six positioning holes one are arranged on the butt joint pipe one in a circumferential manner. The butt joint pipe two extends into the spherical cover and is fixedly connected with the spherical cover. Six positioning holes two are arranged on the butt joint pipe two in a circumferential manner. The butt joint mechanism is used for connecting the butt joint pipe one and the butt joint pipe two together. The locking mechanism is six in number and is arranged on the spherical cover in a circumferential manner. The locking mechanism is used for locking the butt joint pipe one and the butt joint pipe two after butt joint. The butt joint pipe one and the butt joint pipe two are butt jointed through the butt joint mechanism and the locking mechanism. Even if the cabin and the cabin clock are connected together, the personnel can move between the cabin and the cabin clock. The device has the advantages of simple structure and convenient use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of docking equipment, and particularly relates to a cabin clock docking and locking device. BACKGROUND

[0002] With the deepening of the development of marine resources and the promotion of underwater scientific research, the application of underwater living cabins is becoming more and more widespread. The underwater living cabin provides a relatively stable and safe underwater working base for divers or scientific researchers. The capacity of the living cabin is commonly 4 people, that is, it can provide rest for 4 divers, and the inner diameter of the cabin body is 2200mm, and the distance between the inner top points of the two ends of the head is 5500mm. During the work, how to smoothly transport personnel and materials into the living cabin has become a difficult problem to be solved.

[0003] The cabin clock is a commonly used underwater transportation tool, and its docking with the underwater living cabin is crucial. In the past technology, due to the complex underwater environment, large water pressure change and unstable water flow, the docking process of the cabin clock and the living cabin is full of challenges. The traditional docking method often cannot guarantee the stability of the docking process, and is easy to deviate or collide under the impact of water flow during docking, which not only may damage the equipment, but also threatens the safety of personnel and materials. Moreover, the locking effect after docking is not ideal, and under the action of water pressure, the connection may be loose, causing seawater leakage and affecting the normal operation of the environment and equipment in the living cabin. In view of the above problems, the application provides a cabin clock docking and locking device. SUMMARY

[0004] In view of the above technical problems, the technical problem adopted by the application is a cabin clock docking and locking device, which comprises:

[0005] The docking pipe one;

[0006] The docking pipe two extends into the spherical cover and is fixedly connected with the spherical cover, and six positioning holes two are arranged on the docking pipe two in a circle;

[0007] The docking mechanism is used for connecting the docking pipe one and the docking pipe two together;

[0008] The locking mechanism is six, and the six locking mechanisms are arranged on the spherical cover in a circle, and the locking mechanism is used for locking the docking pipe one and the docking pipe two after docking.

[0009] Further, the docking pipe one is provided with two symmetrically arranged guide grooves and six positioning holes one arranged in a circle, and a tapered table is arranged on one end of the docking pipe one close to the positioning hole one.

[0010] Further, the docking mechanism comprises two symmetrically arranged sealing doors, the sealing doors are fixedly connected with rotating shafts rotatingly installed on the spherical cover, a coil spring is arranged between the rotating shafts and the spherical cover, the sealing doors are arranged inside the spherical cover, a limiting assembly is arranged on one side of the sealing doors close to the center of the spherical cover, a circular hole is arranged on the spherical cover away from the second docking pipe, and the sealing doors are located inside the circular hole.

[0011] Further, the limiting assembly comprises two groups of symmetrically arranged limiting rods, each group of the limiting rods comprises at least one limiting rod, one end of each limiting rod is rotatably connected with a moving rod, the other end of the moving rod is rotatably connected with a moving wheel, sliding blocks are arranged on both sides of the moving wheel, the sliding blocks are in sliding fit with guide grooves, and the sliding blocks are installed on one end of the moving rod close to the moving wheel.

[0012] Further, the wall thickness of the spherical cover is not less than the length of the projection of the conical table on the central axis of the first docking pipe.

[0013] Further, the locking mechanism comprises a ball head rod in sliding fit with the spherical cover, one end of the ball head rod is located inside the spherical cover, the other end of the ball head rod is located outside the spherical cover, the ball head rod is in sliding fit with a lower horizontal plate fixedly installed on the outer side of the spherical cover, a locking rod is slidingly installed on the lower horizontal plate, the locking rod passes through the spherical cover and is in sliding fit with the spherical cover, one end of the locking rod located inside the spherical cover is in sliding fit with the second positioning hole, and the ball head rod and the screw are connected through a transmission assembly.

[0014] Further, the transmission assembly comprises a screw arranged on the ball head rod, the screw is in screw fit with a horizontal rod, the horizontal rod is fixedly installed on the lower horizontal plate, an upper horizontal plate is fixedly installed above the lower horizontal plate, a rotating disc is rotatably installed on the upper horizontal plate, the rotating disc is in spline fit with the ball head rod, a gear one is fixedly installed on the rotating disc, the gear one is in meshing fit with a gear two, the gear two is rotatably installed on the upper horizontal plate, and the gear two is provided with a through hole.

[0015] Further, two limiting blocks arranged in the axial direction of the locking rod are arranged on the locking rod, the projections of the two limiting blocks do not coincide, and a return spring is arranged between the locking rod and the lower horizontal plate.

[0016] Further, the locking mechanism further comprises six air cylinders, the air cylinders are circumferentially installed on the outer wall of the second docking pipe, one end of a driving rod is rotatably installed on the extending end of each air cylinder, and the other end of the driving rod is rotatably connected with the locking rod.

[0017] Further, a sealing cover is arranged on the outer side of the circular hole of the spherical cover, and the sealing cover is fixedly connected with the outer side of the spherical cover.

[0018] The beneficial effects of this invention compared with the prior art are: (1) This invention completes the docking of docking pipe one and docking pipe two through docking mechanism and locking mechanism, that is, connecting the cabin and the cabin bell together, which facilitates the movement of personnel between the cabin and the cabin bell. The structure is simple and easy to use; (2) During the docking process of docking pipe one and docking pipe two, docking pipe one and the conical platform drive the locking mechanism, and docking pipe one and docking pipe two are connected and locked together by the locking mechanism, which makes the docking process smooth and avoids the situation of short circuit and docking failure when using a fully automatic circuit control system, thus improving the docking efficiency; (3) By setting a limit component in the docking mechanism, water can be effectively prevented from entering the spherical cover through the sealing door when docking is not required, thus improving the sealing performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0021] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0023] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0024] Figure 6 This is a partial structural cross-sectional view of the present invention.

[0025] Figure 7 This is a partial structural diagram of the present invention. Figure 3 .

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point C.

[0027] Figure 9 This is a partial structural diagram of the present invention. Figure 4 .

[0028] Figure 10 for Figure 9 A magnified schematic diagram of the structure at point D.

[0029] Figure 11 This is a partial structural diagram of the present invention. Figure 5 .

[0030] Figure 12 This is a schematic diagram of the structure in use of the present invention.

[0031] Reference numerals: 1-Connecting pipe one; 101-Guide groove; 102-Positioning hole one; 103-Conical platform; 2-Connecting pipe two; 201-Positioning hole two; 3-Spherical cover; 301-Round hole; 4-Docking mechanism; 401-Moving rod; 402-Limiting rod; 403-Sealing door; 404-Rotating shaft; 405-Coil spring; 406-Moving wheel; 407-Slider; 5-Locking mechanism; 501-Ball head rod; 502-Lower cross plate; 503-Thread; 504-Cross bar; 505-Rotating disk; 506-Gear one; 507-Gear two; 508-Reset spring; 509-Locking rod; 510-Cylinder; 511-Through hole; 512-Limiting block; 513-Upper cross plate; 514-Drive rod; 6-Sealing cover; 7-Board; 8-Board bell. Detailed Implementation

[0032] 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.

[0033] Example: Figures 1-12 The bell docking locking device shown includes:

[0034] Takeover 1;

[0035] Connector 2 extends into the spherical cover 3 and is fixedly connected to the spherical cover 3. Six positioning holes 201 are arranged in a circle on connector 2.

[0036] The spherical cover 3 can be composed of two symmetrical parts or cast as a single piece. If it is composed of two symmetrical parts, they can be connected together by bolts, and the connection point is equipped with a sealing ring or other sealing structure, ensuring good sealing performance and preventing water leakage. A sealing cover 6 is provided on the outer side of the circular hole on the spherical cover 3, and the sealing cover 6 is fixedly connected to the outer side of the spherical cover 3.

[0037] like Figure 6 As shown, the function of the sealing cover 6 is to protect the area around the connection between the first connecting pipe 1 and the second connecting pipe 2, and at the same time provide a reference for the docking of the first connecting pipe 1 and the second connecting pipe 2, so as to facilitate docking.

[0038] The docking mechanism 4 is used to connect docking pipe 1 and docking pipe 2 together;

[0039] Locking mechanisms 5, six locking mechanisms 5 are arranged circumferentially on the spherical cover 3, and the locking mechanisms 5 are used to lock the docking pipe one 1 and the docking pipe two 2 after the docking is completed.

[0040] As shown in Figure 12 the initial state, the docking pipe one 1 is detachably or fixedly connected with the cabin clock 8, and the docking pipe one 1 is in communication with the inside of the cabin clock 8; the docking pipe two 2 is detachably or fixedly connected with the ship cabin 7, and the docking pipe two 2 is in communication with the ship cabin 7; the connection between the docking pipe one 1 and the cabin clock 8 and the connection between the docking pipe two 2 and the ship cabin 7 are all sealed connections, so that even if the ship cabin 7 and the cabin clock 8 are located underwater, water cannot enter the ship cabin 7 or the cabin clock 8 through the connections. The docking pipe one 1 and the docking pipe two 2 are docked together through the docking mechanism 4 and the locking mechanism 5, and the docking pipe one 1 and the docking pipe two 2 connected together are fixedly locked, thereby providing a stable passage between the ship cabin 7 and the cabin clock 8.

[0041] The docking pipe one 1 is provided with two symmetrically arranged guide grooves 101 and six circumferentially arranged positioning holes one 102, and the docking pipe one 1 is provided with a tapered table 103 at one end close to the positioning holes one 102.

[0042] After the docking of the ship cabin 7 and the cabin clock 8 is completed, one end of the guide groove 101 close to the ship cabin 7 does not enter the spherical cover 3, so that water cannot enter the spherical cover 3 through the guide groove 101. The cross section of the tapered table 103 is trapezoidal, that is, the diameter of one side end face of the tapered table 103 is smaller than the diameter of the other side end face. The wall thickness of the spherical cover 3 is not less than the length of the projection of the tapered table 103 on the central axis of the docking pipe one 1. Therefore, when the smaller diameter end of the tapered table 103 contacts the sealing door 403, the larger diameter side of the tapered table 103 contacts the circular hole 301 on the spherical cover 3, thereby providing a sealed environment.

[0043] The docking mechanism 4 includes two symmetrically arranged sealing doors 403, the sealing doors 403 are fixedly connected with a rotating shaft 404 rotatingly installed on the spherical cover 3, a coil spring 405 is arranged between the rotating shaft 404 and the spherical cover 3, the sealing doors 403 are arranged inside the spherical cover 3, a limiting assembly is arranged on one side of the sealing doors 403 close to the center of the spherical cover 3, a circular hole 301 is arranged on the side of the spherical cover 3 away from the docking pipe two 2, and the sealing doors 403 are located inside the circular hole 301.

[0044] As shown in Figures 2-6As shown, two sealing doors 403 are located inside the spherical cover 3, and in the initial state, the two sealing doors 403 can block the inside of the circular hole 301, and the purpose is to prevent water from entering the spherical cover 3 through the circular hole 301. The function of the limiting assembly is to block the sealing door 403 when the cabin 7 and the cabin bell 8 are not docked, so that the sealing door 403 and the rotating shaft 404 cannot rotate on the spherical cover 3 due to the impact of water, and water is prevented from entering the spherical cover 3 through the circular hole 301. When the cabin 7 and the cabin bell 8 need to be docked, the docking pipe one 1 connected to the cabin bell 8 will move towards the side close to the sealing door 403, so that the tapered table 103 on the docking pipe one 1 enters the sealing cover 6 and the tapered table 103 contacts the sealing door 403. The tapered table 103 is moved to push the sealing door 403 to rotate. In this process, the limiting assembly is driven by the docking pipe one 1 to release the limitation of the sealing door 403, and the maximum diameter of the tapered table 103 is equal to the outer diameter of the docking pipe one 1, and the maximum diameter of the tapered table 103 is equal to the diameter of the circular hole 301. The purpose of this is that when the smaller end of the tapered table 103 pushes against the sealing door 403 and starts to push the sealing door 403 to drive the rotating shaft 404 to rotate on the spherical cover 3, the end of the tapered table 103 with the maximum diameter and the docking pipe one 1 are in direct contact with the circular hole 301 (i.e. the circular hole 301 is completely sealed by the docking pipe one 1), thereby preventing water from entering the spherical cover 3.

[0045] Of course, in order to prevent water from entering the inside of the docking pipe one 1 through the positioning hole one 102, a water baffle can also be provided at the positioning hole one 102, which is located inside the docking pipe one 1 and is driven by an electric cylinder or the like. During docking, the water baffle blocks the positioning hole one 102, and when the positioning hole one 102 enters the inside of the spherical cover 3, the electric cylinder retracts the water baffle, so as not to interfere with the locking mechanism 5 locking the docking pipe one 1 and the spherical cover 3. Although not shown in the figure, this is a prior art that can be implemented by those skilled in the art.

[0046] The limiting assembly includes two sets of limiting rods 402 arranged symmetrically above and below, each set of limiting rods 402 including at least one limiting rod 402, one end of each set of limiting rods 402 being rotatably connected to a moving rod 401, the other end of the moving rod 401 being rotatably connected to a moving wheel 406, and a sliding block 407 being arranged on both sides of the moving wheel 406, the sliding block 407 being in sliding fit with a guide groove 101, and the sliding block 407 being installed on one end of the moving rod 401 close to the moving wheel 406.

[0047] As the connecting pipe 1 moves towards the side closer to the spherical cover 3, the slider 407 slides along the guide groove 101 on the connecting pipe 1, and the moving wheel 406 also moves along the rectangular groove on the connecting pipe 1. The function of the moving wheel 406 is to make the movement of the moving rod 401 more stable. The two moving rods 401 will drive the two sets of limiting rods 402 to move along the lower horizontal plate 502 in a direction away from each other, thereby making the left side of the sealing door 403 (within) Figure 3 (From the perspective of the viewpoint) no longer restricted by the limit rod 402, when the conical platform 103 pushes the sealing door 403, the sealing door 403 will drive the rotating shaft 404 to rotate on the spherical cover 3, and the connecting pipe 1 will gradually enter the interior of the spherical cover 3. During this process, the coil spring 405 will generate elastic force due to the rotation of the rotating shaft 404. The function of the coil spring 405 is to assist the resetting of the sealing door 403.

[0048] The moving rod 401 and the limiting rod 402 can be rotatably connected by a connecting shaft and then fixed by bolts, etc. The moving rod 401 can also be detachably connected to the moving wheel 406 and the slider 407 by bolts. The purpose of this is that they can be disassembled and stored separately when not in use.

[0049] The locking mechanism 5 includes a ball head rod 501 that slides with the spherical cover 3. One end of the ball head rod 501 is located inside the spherical cover 3, and the other end of the ball head rod 501 is located outside the spherical cover 3. The ball head rod 501 slides with a lower horizontal plate 502 fixedly installed on the outside of the spherical cover 3. A locking rod 509 is slidably installed on the lower horizontal plate 502. The locking rod 509 passes through the spherical cover 3 and slides with the spherical cover 3. One end of the locking rod 509 located inside the spherical cover 3 slides with a positioning hole 201. The ball head rod 501 and the thread 503 are connected by a transmission assembly.

[0050] The transmission assembly includes a thread 503 on the ball joint 501, which is threaded to the crossbar 504. The crossbar 504 is fixedly mounted on the lower crossbar 502. An upper crossbar 513 is fixedly mounted above the lower crossbar 502. A rotating disk 505 is rotatably mounted on the upper crossbar 513. The rotating disk 505 is splined to the ball joint 501. A gear 1 506 is fixedly mounted on the rotating disk 505. The gear 1 506 meshes with a gear 2 507. The gear 2 507 is rotatably mounted on the upper crossbar 513. A through hole 511 is provided on the gear 2 507.

[0051] The locking rod 509 is provided with two vertically arranged limiting blocks 512. The projections of the two limiting blocks 512 do not coincide along the axial direction of the locking rod 509. A return spring 508 is provided between the locking rod 509 and the lower horizontal plate 502.

[0052] Specifically, the meaning that the projections of the two limiting blocks 512 do not coincide is that the two limiting blocks 512 are not on the same vertical line, when one limiting block 512 slides into the through hole 511, the other limiting block 512 is not directly above the through hole 511.

[0053] The locking mechanism 5 further comprises six air cylinders 510, which are circumferentially installed on the outer wall of the second butt pipe 2, and one end of each air cylinder 510 is rotatably connected with one end of a driving rod 514, and the other end of the driving rod 514 is rotatably connected with the locking rod 509.

[0054] As shown in Figure 1 , Figure 3 , Figure 7 --- Figure 12 During the movement of the conical table 103 to the side close to the second butt pipe 2, first, the inclined surface of the conical table 103 will move relative to the ball head rod 501, so that the ball head rod 501 moves away from the central axis of the spherical cover 3, at this time, the ball head rod 501 will move along the lower cross plate 502 and the upper cross plate 513, during the movement of the ball head rod 501, the screw thread 503 on the ball head rod 501 will move relative to the cross rod 504, since the cross rod 504 is installed on the lower cross plate 502, and the cross rod 504 and the screw thread 503 form a threaded connection, so under the action of the cross rod 504, the ball head rod 501 will rotate through the guiding action of the screw thread 503, that is, the movement state of the ball head rod 501 relative to the lower cross plate 502 is sliding and rotating, in addition, since the ball head rod 501 and the rotating disc 505 form a spline connection, so the sliding of the ball head rod 501 will not be limited by the rotating disc 505, and the rotating ball head rod 501 will drive the rotating disc 505 to rotate on the upper cross plate 513, since the gear one 506 is connected with the rotating disc 505, so the gear one 506 will also rotate.

[0055] When the gear one 506 rotates, the gear two 507 engaged with the gear one 506 will rotate on the upper horizontal plate 513, when the through hole 511 on the gear two 507 rotates to contact the lower limiting block 512 on the locking rod 509, at this time the locking rod 509 is no longer restricted by the gear two 507, that is, the lower limiting block 512 on the locking rod 509 will slide along the through hole 511, so that the locking rod 509 slides along the positioning hole two 201 to the direction close to the central axis of the butt joint pipe two 2 (at this time it means that the sliding of the ball head rod 501 relative to the inclined surface of the conical table 103 ends, the ball head rod 501 contacts the smooth part on the butt joint pipe one 1, and the height of the ball head rod 501 no longer changes), therefore, in the process of sliding of the locking rod 509 relative to the positioning hole two 201, the locking rod 509 will be inserted into the positioning hole two 201, and with the continuous movement of the butt joint pipe one 1, the conical table 103 first contacts the locking rod 509, and the inclined surface of the conical table 103 makes the locking rod 509 rise, and since the through hole 511 is in contact with the limiting block 512, the movement of the locking rod 509 will not be restricted. With the movement of the butt joint pipe one 1, the positioning hole one 102 on the butt joint pipe one 1 will be below the locking rod 509, so that the locking rod 509 will fall again and enter the positioning hole one 102 through the positioning hole two 201, at this time the butt joint pipe one 1 no longer moves, the locking rod 509 connects and locks the butt joint pipe one 1 and the butt joint pipe two 2 together, and finally the uppermost limiting block 512 of the locking rod 509 will fall on the upper surface of the gear two 507 and will not be in contact with the through hole 511 on the gear two 507, so that the locking rod 509 will not continue to slide downward; in this process, the function of the reset spring 508 is to assist the reset of the locking rod 509.

[0056] In the process of butt joint of the butt joint pipe one 1 and the butt joint pipe two 2, the movement of the ball head rod 501 and the locking rod 509 is driven by the conical table 103 and the butt joint pipe one 1, without the need for other power equipment to drive, on the one hand, it ensures the coordinated movement of each structure, and on the other hand, because mechanical structure is adopted, short circuit and other situations caused by the humid underwater environment when full-automatic circuit control is adopted will not occur, which greatly ensures the stability of the process of butt joint of the cabin 7 and the cabin bell 8.

[0057] In the process of movement of the locking rod 509 to the central axis of the butt joint pipe two 2, the locking rod 509 will drive the driving rod 514 to move to the side close to the air cylinder 510, that is, the driving rod 514 will drive the extension end of the air cylinder 510 to move, it should be noted that the air cylinder 510 adopts a non-self-locking mode, that is, even if the air cylinder 510 is not started, the extension end of the air cylinder 510 can freely slide, but the extension end does not have the function of actively providing power, and can only follow the movement.

[0058] When the docking of the docking pipe one 1 and the docking pipe two 2 needs to be released, the air cylinder 510 is started, and the extending end of the air cylinder 510 is extended, at this time, the extending end has a pushing force, so that in the process of moving towards the locking rod 509, the extending end drives the locking rod 509 to move upwards through the driving rod 514, and the locking rod 509 moves upwards to the limiting block 512 below the gear two 507, and the limiting block 512 moves above the gear two 507 through the through hole 511, when the locking rod 509 leaves the positioning hole one 102, the cabin bell 8 can be pushed away from the docking pipe two 2, so that the cabin bell 8 drives the docking pipe one 1 to move away from the cabin 7, and when the conical table 103 moves to the ball head rod 501, the ball head rod 501 can be reset.

[0059] When the locking state is released, the coordination between the air cylinders 510 does not need to be ensured, and the six air cylinders 510 can be started in sequence, or the air cylinders 510 can be started at the same time. In this way, the requirements of the circuit system for starting and stopping the air cylinders 510 are greatly reduced, and even if the air cylinders 510 cannot be started at the same time due to circuit failure or system jam, the locking state can also be released by starting the air cylinders 510 individually.

[0060] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as above, which are not provided in details for simplicity; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bell docking and locking device, characterized in that, It includes: The docking pipe one (1); The docking pipe two (2) extends into the spherical cover (3) and is fixedly connected with the spherical cover (3), six positioning holes two (201) are arranged on the docking pipe two (2) in a circle; The docking mechanism (4) is used for connecting the docking pipe one (1) and the docking pipe two (2) together; Six locking mechanisms (5) are arranged on the spherical cover (3) in a circle, and the locking mechanism (5) is used for locking the docking pipe one (1) and the docking pipe two (2) after docking; The locking mechanism (5) includes a ball head rod (501) in sliding fit with the spherical cover (3), one end of the ball head rod (501) is located in the inside of the spherical cover (3), the other end of the ball head rod (501) is located outside the spherical cover (3), and the ball head rod (501) is in sliding fit with the lower horizontal plate (502) fixedly installed on the outside of the spherical cover (3), the lower horizontal plate (502) is slidably installed with a locking rod (509), the locking rod (509) passes through the spherical cover (3) and is in sliding fit with the spherical cover (3), one end of the locking rod (509) located in the inside of the spherical cover (3) is in sliding fit with the positioning hole two (201), a thread (503) is arranged on the ball head rod (501), the thread (503) is in threaded fit with a horizontal rod (504), the horizontal rod (504) is fixedly installed on the lower horizontal plate (502), an upper horizontal plate (513) is fixedly installed above the lower horizontal plate (502), a rotating disc (505) is rotatably installed on the upper horizontal plate (513), the rotating disc (505) is in spline fit with the ball head rod (501), a gear one (506) is fixedly installed on the rotating disc (505), the gear one (506) is in meshing fit with a gear two (507), the gear two (507) is rotatably installed on the upper horizontal plate (513), a through hole (511) is arranged on the gear two (507), two upper and lower arranged limit blocks (512) are arranged on the locking rod (509), the projections of the two limit blocks (512) do not coincide in the axial direction of the locking rod (509), a return spring (508) is arranged between the locking rod (509) and the lower horizontal plate (502), when one limit block (512) slides into the through hole (511), the other limit block (512) is not directly above the through hole (511); Six positioning holes one (102) are arranged on the docking pipe one (1) in a circle, a tapered table (103) is arranged on one end of the docking pipe one (1) close to the positioning hole one (102), the locking rod (509) falls into the positioning hole one (102) through the positioning hole two (201), and the locking rod (509) connects and locks the docking pipe one (1) and the docking pipe two (2) together.

2. A hatchway interface locking device as claimed in claim 1, wherein, The docking mechanism (4) comprises two symmetrically arranged sealing doors (403), the sealing doors (403) are fixedly connected with rotating shafts (404) rotatingly installed on the spherical cover (3), the rotating shafts (404) and the spherical cover (3) are provided with coil springs (405), the sealing doors (403) are arranged inside the spherical cover (3), the sealing doors (403) are provided with limiting assemblies on sides close to the center of the spherical cover (3), the spherical cover (3) is provided with a circular hole (301) on a side away from the docking pipe two (2), and the sealing doors (403) are located inside the circular hole (301).

3. A hatchway interface locking device as claimed in claim 2, wherein, The docking pipe one (1) is provided with two symmetrically arranged guide grooves (101), the limiting assembly comprises two symmetrically arranged limiting rods (402), each of the limiting rods (402) comprises at least one limiting rod (402), one end of a moving rod (401) is rotationally connected to each of the limiting rods (402), the other end of the moving rod (401) is rotationally connected with a moving wheel (406), the moving wheel (406) is provided with sliding blocks (407) on both sides, the sliding blocks (407) are in sliding fit with the guide grooves (101), and the sliding blocks (407) are installed on one end of the moving rod (401) close to the moving wheel (406).

4. A hatchway interface locking device as claimed in claim 3, wherein, The wall thickness of the spherical cover (3) is not less than the length of the projection of the conical table (103) on the central axis of the docking pipe one (1).

5. A hatchway interface locking device as defined in claim 1, wherein, The locking mechanism (5) further comprises six air cylinders (510), the air cylinders (510) are circumferentially installed on the outer wall of the docking pipe two (2), one end of a driving rod (514) is rotationally installed on the extending end of each of the air cylinders (510), and the other end of the driving rod (514) is rotationally connected with a locking rod (509).

6. A hatchway interface locking device as claimed in any one of claims 1 to 5, wherein, The spherical cover (3) is provided with a sealing cover (6) outside the circular hole, and the sealing cover (6) is fixedly connected with the outer side of the spherical cover (3).

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