An inboard elevator

Abstract

The present invention provides an inboard elevator, which includes a hydraulic system for controlling the inboard elevator and an anti-falling mechanism for preventing the elevator from falling; the elevator includes a platform assembly, a lifting drive mechanism for driving the platform assembly to lift, and a flap disposed in the gap between the hatch on the ship's deck and the hull, and the flap is used to fill the gap between the hatch and the deck; the anti-falling mechanism includes a locking pin mechanism and a detection device; the elevator of the present invention has the advantages of being safe, stable and having an anti-falling function.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting platforms, and particularly to an inboard elevator. Background Art

[0002] For large ships with the function of transporting or loading goods, due to the need for handling, a lifting platform is generally provided on the hull. The lifting platform mainly used for cargo transportation is generally a jib-type platform. There are few inboard elevators for aircraft berthing and transfer on large ships. In current large ships with aircraft berthing, the aircraft is usually berthed on the deck of the hull. Since the area of the deck is limited and the risk of berthing exposure is relatively high, it is necessary to consider storing the aircraft inside the ship. In the prior art, the inboard elevator generally adopts four-point hoisting; the elevator only has two access directions; and the two directions are on the same straight line; when the aircraft needs to enter the elevator, it needs to move to the front or rear of the elevator; at the same time, the fuselage of the aircraft needs to be aligned with the access passage; and then drive into the elevator; in this way, the aircraft occupies a large space when entering and leaving the elevator; at the same time, the elevator adopts four-point hoisting, and when the aircraft enters and leaves the lifting platform, it is necessary to avoid collision with the hoisting device; the speed needs to be slowed down; and thus the working efficiency of the elevator will be reduced. Summary of the Invention

[0003] The present invention provides an inboard elevator, and with the structure of the present invention, the elevator is safe and stable and has a function of preventing falling.

[0004] To achieve the above object, the technical solution of the present invention is: an inboard elevator, including a hydraulic system for controlling the inboard elevator and a falling prevention mechanism for preventing the elevator from falling; the elevator includes a platform assembly, a lifting drive mechanism for driving the platform assembly to lift, and a flap provided at the gap between the hatch on the hull deck and the hull, and the flap is used to fill the gap between the hatch and the deck; the falling prevention mechanism includes a locking pin mechanism and a detection device.

[0005] The platform assembly includes a lifting platform and a platform support; the lifting platform is connected to the platform support; the platform support includes more than two rope winding wheel mounting parts and more than two rope winding connection parts; the two rope winding wheel mounting parts and the two rope winding connection parts are symmetrically arranged on the platform support; the two rope winding wheel mounting parts are close to one side of the platform support; the two rope winding connection parts are close to the other side of the platform support, and the rope winding connection parts are located above the rope winding wheel mounting parts; the lifting platform is provided for driving the aircraft to lift; the platform support is provided for supporting the lifting platform.

[0006] The lifting drive mechanism includes a lifting drive device, a rope winding wheel set, and a lifting rope. The two end portions of the lifting rope are respectively connected to the platform assembly; there are two lifting ropes in total, and the two lifting ropes are wound around the rope winding wheel set and the lifting drive device at intervals. The lifting drive device is used to drive the lifting rope to move on the rope winding wheel set, so as to drive the lifting platform to lift.

[0007] The detection device is arranged on one side of the lifting rope. The detection device includes two first travel switches and two second travel switches. The two first travel switches are arranged on one side of the platform assembly, and each of the two first travel switches is in contact with a corresponding lifting rope. The two second travel switches are arranged on the other side of the platform assembly opposite to the first travel switches, and each of the two second travel switches is in contact with a corresponding lifting rope. When a lifting rope is disconnected, the corresponding first travel switch or second travel switch in contact will perform contact action to output a signal for alarm.

[0008] The locking pin mechanism includes a locking pin oil cylinder, a locking pin, a locking pin guide and a locking member. At each flat floor where the lift stops, and on the edge near the lift on one side, locking pin oil cylinders are respectively provided. The locking pin guide is arranged on one side of the locking pin oil cylinder. The locking pin guide is provided with a through groove arranged along its axis. The locking pin is movably arranged in the through groove of the locking pin guide. The output end of the locking pin oil cylinder is fixedly connected to one end of the locking pin. The locking members are respectively arranged at the edges on the lower side of the lifting platform. The locking members are provided with through holes that cooperate with the locking pins. By driving the locking pins to insert into the through holes of the locking members through the extension of the locking pin oil cylinders, the locking of the lifting platform is achieved.

[0009] The hydraulic system includes a hydraulic pump station, a platform assembly drive system, a hatch system, a vehicle garage flat floor locking pin system, a hangar flat floor locking pin system, a flap system, an accumulator, a proportional speed control valve and a multi-way valve. The P ports of the proportional speed control valve and the multi-way valve are respectively connected to the P port of the hydraulic pump station. The T ports of the proportional speed control valve and the multi-way valve are respectively connected to the T port of the hydraulic pump station. The L ports of the proportional speed control valve and the multi-way valve are respectively connected to the L port of the hydraulic pump station. The inlet and outlet ports of the platform assembly drive system are respectively connected to the proportional speed control valve. The inlet and outlet ports of the hatch system are respectively connected to the multi-way valve. The inlet and outlet ports of the hangar flat floor locking pin system are respectively connected to the multi-way valve. The inlet and outlet ports of the garage flat floor locking pin system are respectively connected to the multi-way valve. The inlet and outlet ports of the flap system are respectively connected to the multi-way valve.

[0010] The oil drain port of the accumulator is connected to the multi-way valve. The outlet ports of the multi-way valve are respectively connected to the inlet and outlet ports of the platform assembly drive system. The P port of the accumulator is respectively connected to the P ports of the proportional speed control valve and the multi-way valve. The T port of the accumulator is respectively connected to the T ports of the proportional speed control valve and the multi-way valve. The hatch system, the vehicle garage flat floor locking pin system, the hangar flat floor locking pin system and the flap system are respectively controlled by controlling the multi-way valve.

[0011] With the above settings, since the two lifting ropes are wound around the rope winding wheel set and the lifting drive device at intervals, when one of the lifting ropes breaks, the corresponding first travel switch or second travel switch that abuts will perform contact action to output an alarm signal, and the platform assembly will be driven by the lifting drive device to descend to the lowest position; when the lifting drive mechanism drives the lifting platform to transfer from the current flat floor to another flat floor for loading or unloading equipment, goods, etc., the locking pin cylinder drives the locking pin to slide within the locking pin guide and insert into the locking member, so that the lifting platform is fixedly connected to the current flat floor where it is located. The locking pin mechanism can distribute part of the pressure received by the lifting platform to the current flat floor where it is located, thereby reducing the impact force on the lifting drive mechanism during equipment and goods loading, and at the same time can also reduce the load on the lifting drive mechanism; when the loading or unloading action is completed, the locking pin cylinder contracts, driving the locking pin to disengage from the locking member, thereby releasing the fixed connection between the lifting platform and the current flat floor where it is located; then the lifting drive mechanism drives the lifting platform to another flat floor; in this way, the stability of the lifting platform during loading can be improved through the locking pin mechanism, the impact on the lifting drive mechanism during loading is reduced, and thus the working life of the lifting drive mechanism and the safety of the elevator are extended; in addition, the lifting ropes can also be detected by the first travel switch or the second travel switch. When the lifting ropes are disconnected, an alarm can be issued in time, further improving the safety.

[0012] When it is necessary to control the lifting action of the platform component, by controlling the flow direction of the hydraulic oil of the proportional speed control valve, the platform component can be driven to lift; when the platform component reaches the hangar floor or the garage floor, the multi-way valve adjusts the hydraulic oil output from the oil outlet to the locking pin system corresponding to the current floor where the platform component is located according to the current floor position of the platform component, so that the locking pin system of the current floor locks the platform component, thereby improving the safety of the platform component; when the platform component completes loading on the current floor, the multi-way valve controls the locking pin system of the current floor to release the lock on the platform component, and then drives the platform component to the next target floor through the proportional speed control valve, so that the platform component safely completes the loading of goods; when the platform component needs to rise to the deck for operation, the multi-way valve controls the hatch system to open the hatch, and then the multi-way valve adjusts the oil outlet to make the flap system get oil and drive the flap to open. The platform component is controlled to rise only outside the hatch through the proportional speed control valve. At this time, the multi-way valve controls the locking pin system of the hangar floor to lock the platform component; when the platform component completes the operation on the deck, the multi-way valve controls the locking pin system of the hangar floor to release the lock on the platform component, controls the platform component to descend through the proportional speed control valve, and then the multi-way valve retracts the flap and the hatch in sequence; in this way, the hull deck and the platform component are connected through the flap; the gap between the hull deck and the platform component is avoided from affecting the entry and exit of the aircraft on the platform component; the stability of the aircraft entering and exiting the platform component is improved; when the hydraulic pump station fails, the multi-way valve can adjust the hydraulic oil output by the accumulator station and output the hydraulic oil as emergency power to the drive system of the platform component to complete the emergency operation, further improving the safety of the inboard elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic structural view of the present invention installed on the deck.

[0014] Figure 2 FIG. is a schematic side view structure of the present invention.

[0015] Figure 3 FIG. is a three-dimensional structural view of the platform component, the lifting guide device and the lifting drive mechanism in the present invention.

[0016] Figure 4 FIG. is a schematic structural view of the lifting drive mechanism in the present invention with the rope winding wheels six, seven and eight removed.

[0017] Figure 5 FIG. is a practical state diagram of the lifting drive mechanism in the present invention with the rope winding wheels six, seven and eight removed.

[0018] Figure 6 FIG. is a top view of the present invention.

[0019] Figure 7 is Figure 2Partial enlarged schematic view at position A in [the figure].

[0020] Figure 8 It is Figure 6 Partial enlarged schematic view at position B in [the figure].

[0021] Figure 9 Hydraulic principle block diagram of the present invention.

[0022] Figure 10 Hydraulic principle schematic diagram of the platform component drive system in the present invention.

[0023] Figure 11 Hydraulic principle schematic diagram of the hatch cover system in the present invention.

[0024] Figure 12 Hydraulic principle schematic diagram of the lock pin system in the present invention.

[0025] Figure 13 Hydraulic principle schematic diagram of the flap system in the present invention.

[0026] Reference numerals: 1, hatch cover assembly; 11, cover plate; 12, hatch cover drive device; 21, lifting platform; 22, platform support; 23, rope winding wheel mounting part; 24, rope winding connection part; 3, lifting drive mechanism; 31, lifting drive device; 311, drive section; 312, fixed end; 32, rope winding wheel set; 33, lifting rope; 321, rope winding wheel one; 322, rope winding wheel two; 323, rope winding wheel three; 324, rope winding wheel four; 325, rope winding wheel five; 326, rope winding wheel six; 327, rope winding wheel seven; 328, rope winding wheel eight; 4, lifting guide device; 41, lifting guide rail assembly; 411, lifting guide rail one; 412, lifting guide rail two; 413, slide rail; 42, lifting guide part; 43, guide wheel support; 44, pulley assembly; 45, auxiliary wheel one; 46, auxiliary wheel two; 51, first travel switch; 52, two travel switches; 61, lock pin oil cylinder; 62, lock pin; 63, lock pin guide part; 64, locking part; 65, lock pin travel switch; 71, hangar deck; 72, vehicle storage deck; 73, bottom deck; 8, flap.

[0027] 1a. Platform component drive system; 111a. First lifting drive oil cylinder; 112a. Second lifting drive oil cylinder; 121a. First lifting reversing valve; 122a. Second lifting reversing valve; 131a. First balance valve; 132a. Second balance valve; 133a. Third balance valve; 134a. Fourth balance valve; 141a. First one-way throttle valve; 142a. Second one-way throttle valve; 143a. Third one-way throttle valve; 144a. Fourth one-way throttle valve; 145a. Emergency operation oil circuit; 2a. Hatch system; 211a. First hatch oil cylinder; 212a. Second hatch oil cylinder; 221a. First hatch balance valve; 222a. Second hatch balance valve; 223a. Third hatch balance valve; 224a. Fourth hatch balance valve; 3a. Lock pin drive system; 31a. Lock pin oil cylinder; 32a. First lock pin one-way throttle valve; 33a. Second lock pin one-way throttle valve; 41a. First flap oil cylinder; 411a. First one-flap balance valve; 412a. First two-flap balance valve; 42a. Second flap oil cylinder; 421a. Second one-flap balance valve; 422a. Second two-flap balance valve; 5a. Accumulator; 6a. Platform component self-weight balance system. Detailed implementation manner

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and the detailed implementation manner.

[0029] As Figures 1-13 shown, an inboard elevator includes a hydraulic system for controlling the inboard elevator and an anti-falling mechanism for preventing the elevator from falling; the elevator includes a hatch component 1, a platform component 2, a lifting drive mechanism 3 for driving the platform component 2 to lift, a lifting guiding device 4, and a flap 8 provided at the gap between the hatch on the hangar deck 71 of the hull and the hull, and the flap 8 is used to fill the gap between the hatch and the hangar deck 71; the anti-falling mechanism includes a lock pin mechanism and a detection device; the elevator is applied to the hull.

[0030] The platform component 2 includes a lifting platform 21 and a platform bracket 22; the lifting platform 21 is connected to the platform bracket 22; the platform bracket 22 includes more than two rope winding wheel mounting parts 23 and more than two rope winding connection parts 24; the two rope winding wheel mounting parts 23 and the two rope winding connection parts 24 are symmetrically arranged on the platform bracket 22; the two rope winding wheel mounting parts 23 are close to one side of the platform bracket 22; the two rope winding connection parts 24 are close to the other side of the platform bracket 22, and the rope winding connection parts 24 are located above the rope winding wheel mounting parts 23; the lifting platform 21 is provided for driving the aircraft to lift; the platform bracket 22 is provided for supporting the lifting platform 21; the support effect is improved.

[0031] The lifting drive device 31 drives the platform assembly 2 to lift, realizing the movement of the platform assembly 2 between different deck layers of the hull; the lifting drive device 31 is connected to one side of the platform assembly 2; the lifting drive device 31 is cantilever-connected to the platform assembly 2; when an aircraft needs to be transported, the lifting drive device drives the platform assembly 2 to rise onto the upper deck of the hull. Since the platform assembly 2 is lifted by the lifting drive device on one side, there is no need to have suspension ropes arranged in four directions like a four-point suspension type, so that the aircraft preferably enters the suspension device from the length direction. In this structure, the aircraft can enter the platform assembly from three directions, namely the left and right directions or the front of the platform assembly 2. In this way, the aircraft occupies less peripheral space of the hull when entering and leaving the platform assembly 2; at the same time, it can reduce the risk of collision between the aircraft and the lifting drive device 31 when entering and leaving the platform assembly 2; because the length of the lifting rope 33 is constant; when the lifting drive device 31 drives the rope winding wheel two 322 to move away from the rope winding wheel one 321; the rope winding wheel two 322 drives the lifting rope 33 wound around the rope winding wheel set 32 to move; according to the pulley principle; the lifting rope 33 drives the lifting drive device 31 away from the lifting drive device 31, thereby realizing the lifting rope 33 driving the platform assembly 2 to move upward; when the lifting drive device 31 drives the rope winding wheel two 322 to move closer to the rope winding wheel one 321; because the length of the lifting rope 33 is constant; at this time, the rope winding wheel two 322 and the lifting rope 33 are in a slack state; at this time, the platform assembly 2 moves downward under the action of gravity.

[0032] A damping spring (not shown in the figure) is also provided at the bottom of the platform; in this way, when both lifting ropes 33 connected to the lifting platform 21 are disconnected, the lifting platform 21 free-falls, and the damping spring can provide buffering for the lifting platform 21, minimizing damage to the goods or equipment on the platform assembly and the lifting platform 21.

[0033] The lifting drive mechanism 3 includes a lifting drive device 31, a rope winding wheel set 32, and a lifting rope 33; the rope winding wheel set 32 includes a rope winding wheel one 321, a rope winding wheel two 322, a rope winding wheel three 323, a rope winding wheel four 324, a rope winding wheel five 325, a rope winding wheel six 326, a rope winding wheel seven 327, and a rope winding wheel eight 328; there are two rope winding wheels five 325, two rope winding wheels six 326, two rope winding wheels seven 327, and two rope winding wheels eight 328; the two rope winding wheels five 325, the two rope winding wheels six 326, the two rope winding wheels seven 327, and the two rope winding wheels eight 328 are all symmetrically arranged with respect to the platform assembly 2.

[0034] The rope winding wheel seven 327 is installed on the platform assembly; the lifting drive device 31 is provided with a drive end 311 and a fixed end 312; the rope winding wheel one 321 is installed on the fixed end 312; the rope winding wheel two 322 is installed on the drive end 311; the rope winding wheel three 323 and the rope winding wheel four 324 are sequentially arranged between the rope winding wheel five 325 and the rope winding wheel two 322; both ends of the lifting rope 33 are respectively connected to the platform assembly; there are two lifting ropes 33 in total, and the two lifting ropes 33 are wound around a rope winding wheel seven, a rope winding wheel six 326, a rope winding wheel five 325, a rope winding wheel one 321, a rope winding wheel two 322, a rope winding wheel three 323, a rope winding wheel four 324, another rope winding wheel five 325, another rope winding wheel six 326, and another rope winding wheel seven 327 at intervals; the lifting drive device 31 drives the rope winding wheel seven to reciprocate between the rope winding wheel five 325 and the rope winding wheel six 326 by driving the rope winding wheel two; by providing the rope winding wheel eight 328, the tensioning effect of the rope winding wheel group 32 on the lifting rope 33 is improved; in this way, the control effect of the rope winding wheel group 32 driving the platform assembly 2 to move is good. The installation of the rope winding wheel seven 327 is realized by providing the rope winding wheel installation part 23; the lifting rope 33 is connected by providing the rope winding connection part 26; a sliding friction is generated between the lifting rope 33 and the rope winding wheel seven 327 to realize the lifting of the platform assembly 2.

[0035] In this embodiment, the two first travel switches 51 are respectively arranged between the rope winding wheel five 325 and the rope winding wheel six 326 and are in contact with the lifting rope 33.

[0036] The lifting guide rail assembly 41 includes a lifting guide rail one 411 and a lifting guide rail two 412; a slide rail 413 is provided between the lifting guide rail one 411 and the lifting guide rail two 412; the lifting guide rail one 411, the lifting guide rail two 412 and the slide rail 413 are perpendicularly arranged; the lifting guide wheel group includes a guide wheel bracket 43 and a pulley assembly 44, an auxiliary wheel one 45 and an auxiliary wheel two 46 installed on the guide wheel bracket 43; the pulley assembly 44 is slidably arranged on the slide rail 413; the auxiliary wheel one 45 is slidably arranged on the side edge of the lifting guide rail one 411 and the radial direction of the auxiliary wheel one is perpendicular to the side edge of the platform assembly; the auxiliary wheel two 46 is slidably arranged on the side edge of the lifting guide rail two 412 and the radial direction of the auxiliary wheel one is perpendicular to the side edge of the platform assembly; in this way, the sliding effect is good.

[0037] There are two lifting guide devices 4; the two lifting guide devices 4 are connected to the platform assembly 2; the two lifting guide devices 4 are close to the side of the platform assembly 2 connected to the seventh rope winding wheel 327; and are located between the two seventh rope winding wheels 327; the lifting guide device 4 includes a lifting guide rail assembly 41 and a lifting guide member 42; the platform assembly 2 is connected to the lifting guide member 42; the lifting guide member 42 is provided with a lifting guide wheel set; the lifting guide wheel set is slidably arranged on the lifting guide rail assembly 41. By providing the lifting guide device 4, the platform assembly 2 moves along the guiding direction of the lifting guide device 4, so that the stability of the platform assembly 2 during lifting is good; at the same time, the two lifting guide devices 4 are close to the side of the platform assembly connected to the seventh rope winding wheel 327, so that the lifting guide device 4 is also connected to the platform assembly 2 in a cantilevered manner.

[0038] The lifting guide rail assembly 41 includes a first lifting guide rail 411 and a second lifting guide rail 412; a slide rail 413 is provided between the first lifting guide rail 411 and the second lifting guide rail 412; the first lifting guide rail 411, the second lifting guide rail 412 and the slide rail 413 are perpendicularly arranged; the lifting guide wheel set includes a guide wheel bracket 43 and a pulley assembly 44, a first auxiliary wheel 45 and a second auxiliary wheel 46 installed on the guide wheel bracket 43; the pulley assembly 44 is slidably arranged on the slide rail 413; the first auxiliary wheel 45 is slidably arranged on the side edge of the first lifting guide rail 411 and the radial direction of the first auxiliary wheel is perpendicular to the side edge of the platform assembly; the second auxiliary wheel 46 is slidably arranged on the side edge of the second lifting guide rail 412 and the radial direction of the first auxiliary wheel is perpendicular to the side edge of the platform assembly. In this way, the sliding effect is good.

[0039] The lock pin mechanism includes a lock pin oil cylinder 61, a lock pin 62, a lock pin guide 63 and a locking member 64. Lock pin oil cylinders 61 are respectively provided on the edges of the hangar deck 71, the garage deck and the bottom deck close to the elevator. The lock pin guide 63 is arranged on one side of the lock pin oil cylinder 61. The lock pin guide 63 is provided with a through groove arranged along its axis. The lock pin 62 is movably arranged in the through groove of the lock pin guide 63. The output end of the lock pin oil cylinder 61 is fixedly connected to one end of the lock pin 62. The locking members 64 are respectively arranged at the edges of the lower side of the lifting platform 21; through holes cooperating with the lock pin 62 are provided on the locking members 64. By driving the lock pin 62 to insert into the through holes of the locking members 64 by the extension of the lock pin oil cylinder 61, the lock pin 62 mechanism realizes the locking of the lifting platform 21;

[0040] A lock pin travel switch 65 is further provided on the lock pin 62. When the lock pin 62 is inserted into the locking member 64, the contacts of the lock pin travel switch 65 act to output a signal; in this way, it is possible to monitor in real time whether each lock pin 62 is inserted into the locking member 64, improving safety.

[0041] The detection device is arranged on one side of the lifting rope 33 and includes two first travel switches 51 and two travel switches 52. The two first travel switches 51 are arranged on one side of the platform assembly and are respectively in contact with a corresponding lifting rope 33. The two second travel switches are arranged on the other side of the platform assembly relative to the first travel switches 51 and are respectively in contact with a corresponding lifting rope 33. When a lifting rope 33 is disconnected, the corresponding abutting first travel switch 51 or second travel switch will activate contact and output an alarm signal.

[0042] With the above arrangement, when the lifting drive mechanism 3 drives the lifting platform 21 to transfer from the current level to another level for loading or unloading equipment, cargo, etc., the locking pin 62 is driven by the locking pin cylinder 61 to slide in the locking pin guide 63 and insert the locking member 64, so that the lifting platform 21 and the current level are fixedly connected to each other. The locking pin 62 mechanism can distribute part of the pressure exerted on the lifting platform 21 to the current level, thereby reducing the impact force on the lifting drive mechanism 3 when loading equipment and cargo, and at the same time reducing the load of the lifting drive mechanism 3; when the loading or unloading action is completed, the locking pin cylinder 61 contracts, driving the locking pin 62 to disengage from the locking member 64, thereby releasing the fixed connection between the lifting platform 21 and the current level. ; Then the lifting drive mechanism 3 drives the lifting platform 21 to another level; in this way, the stability of the lifting platform 21 during loading can be improved by the locking pin 62 mechanism, and the impact on the lifting drive mechanism 3 during loading can be reduced, thereby extending the working life of the lifting drive mechanism 3 and the safety of the elevator; in addition, the lifting rope 33 can also be detected by the first travel switch 51 or the second travel switch. Since the two lifting ropes 33 are wound around the rope winding wheel group 32 and the lifting drive device 31 at intervals, when one of the lifting ropes 33 is disconnected, the corresponding first travel switch 51 or the second travel switch will perform contact action to output a signal alarm, and drive the platform assembly to the lowest point through the lifting drive device 31, further improving safety.

[0043] The hydraulic system includes a hydraulic pump station, a platform component drive system 1a, a hatch system 2a, a vehicle garage leveling lock pin system, a hangar leveling lock pin system, a flap system, an accumulator 5a, a proportional speed control valve and a multi-way valve; the P ports of the proportional speed control valve and the multi-way valve are respectively connected to the P port of the hydraulic pump station; the T ports of the proportional speed control valve and the multi-way valve are respectively connected to the T port of the hydraulic pump station; the L ports of the proportional speed control valve and the multi-way valve are respectively connected to the L port of the hydraulic pump station; the oil inlet and oil outlet of the platform component drive system 1a are respectively connected to the proportional speed control valve; the oil inlet and oil outlet of the hatch system 2a are respectively connected to the multi-way valve; the oil inlet and oil outlet of the hangar leveling lock pin system are respectively connected to the multi-way valve; the oil inlet and oil outlet of the garage leveling lock pin system are respectively connected to the multi-way valve; the oil inlet and oil outlet of the flap system are respectively connected to the multi-way valve.

[0044] The oil drain port of the accumulator 5a is connected to the multi-way valve, and the oil outlet of the multi-way valve is respectively connected to the oil inlet and outlet of the platform component drive system 1a; the P port of the accumulator 5a is respectively connected to the P ports of the proportional speed control valve and the multi-way valve, and the T port of the accumulator 5a is respectively connected to the T ports of the proportional speed control valve and the multi-way valve; the hatch system 2a, the vehicle garage leveling lock pin system, the hangar leveling lock pin system, and the flap system are respectively controlled by controlling the multi-way valve.

[0045] With the above settings, when it is necessary to control the lifting action of the platform component, by controlling the flow direction of the hydraulic oil of the proportional speed control valve, the platform component can be driven to lift; when the platform component reaches the hangar floor or the garage floor, the multi-way valve adjusts the hydraulic oil output from the oil outlet to the lock pin system corresponding to the floor where the platform component is currently located according to the current floor position of the platform component, so that the lock pin system of the current floor locks the platform component, thereby improving the safety of the platform component; when the platform component completes loading on the current floor, the lock pin system of the current floor where it is located is controlled by the multi-way valve to release the lock on the platform component, and then the platform component is driven to the next target floor by the proportional speed control valve, so that the platform component safely completes the loading of goods; when the platform component needs to rise to the deck for operation, the hatch system 2a is controlled by the multi-way valve to open the hatch, and then the oil outlet is adjusted by the multi-way valve to make the flap system get oil and drive the flap to open. The platform component is controlled by the proportional speed control valve to rise outside the hatch. At this time, the hangar floor lock pin system is controlled by the multi-way valve to lock the platform component; when the platform component completes the operation on the deck, the hangar floor lock pin system is controlled by the multi-way valve to release the lock on the platform component, the platform component is controlled by the proportional speed control valve to land, and then the flap and the hatch are retracted in sequence by the multi-way valve; in this way, the hull deck and the platform component are connected by the flap; the gap between the hull deck and the platform component is avoided from affecting the entry and exit of the aircraft on the platform component; the stability of the aircraft's entry and exit on the platform component is improved; when the hydraulic pump station fails, the multi-way valve can be used to adjust the hydraulic oil output from the accumulator 5a and output the hydraulic oil to the platform component drive system 1a as emergency power to complete the emergency operation, further improving the safety of the inboard elevator.

[0046] The platform component drive system 1a includes a first lifting drive oil cylinder 111a, a second lifting drive oil cylinder 112a, a first lifting reversing valve 121a, a second lifting reversing valve 122a, a first balance valve 131a, a second balance valve 132a, a third balance valve 133a, and a fourth balance valve 134a; the P port of the first lifting reversing valve 121a is connected to the oil outlet of the proportional speed control valve, and the T port of the first lifting reversing valve 121a is connected to the oil return port of the proportional speed control valve; the A port of the first lifting reversing valve 121a is connected to the A port of the first balance valve 131a, and the B port of the first lifting reversing valve 121a is connected to the A port of the second balance valve 132a; the B port of the first balance valve 131a is connected to the oil inlet of the first lifting drive oil cylinder 111a, and the B port of the second balance valve 132a is connected to the oil return port of the first lifting drive oil cylinder 111a; the P port of the second lifting reversing valve 122a is connected to the oil outlet of the proportional speed control valve, and the T port of the second lifting reversing valve 122a is connected to the oil return port of the proportional speed control valve; the A port of the second lifting reversing valve 122a is connected to the A port of the third balance valve 133a, and the B port of the second lifting reversing valve 122a is connected to the A port of the fourth balance valve 134a; the B port of the third balance valve 133a is connected to the oil inlet of the second lifting drive oil cylinder 112a, and the B port of the fourth balance valve 134a is connected to the oil return port of the second lifting drive oil cylinder 112a.

[0047] With the above settings, when driving the platform component to rise, control the first lifting reversing valve 121a and the second lifting reversing valve 122a to reverse, so that the P port and the B port of the first lifting reversing valve 121a are connected, and the P port and the B port of the second lifting reversing valve 122a are connected; in this way, the hydraulic oil enters the first lifting drive oil cylinder 111a from the A port of the second balance valve 132a after passing through the first lifting reversing valve 121a, and enters the second lifting drive oil cylinder 112a from the A port of the fourth balance valve 134a after passing through the second lifting reversing valve 122a, thereby causing the first lifting drive oil cylinder 111a and the second lifting drive oil cylinder 112a to extend and drive the platform component to rise; when driving the platform component to rise, control the first lifting reversing valve 121a and the second lifting reversing valve 122a to reverse, so that the P port and the A port of the first lifting reversing valve 121a are connected, and the P port and the A port of the second lifting reversing valve 122a are connected; in this way, the hydraulic oil enters the first lifting drive oil cylinder 111a from the A port of the first balance valve 131a after passing through the first lifting reversing valve 121a, and enters the second lifting drive oil cylinder 112a from the A port of the third balance valve 133a after passing through the second lifting reversing valve 122a, thereby causing the first lifting drive oil cylinder 111a and the second lifting drive oil cylinder 112a to contract and drive the platform component to descend.

[0048] A first one-way throttle valve 141a is connected between the control oil port of the first balance valve 131a and the port A of the second balance valve 132a. The oil inlet of the first one-way throttle valve 141a is connected to the control oil port of the first balance valve 131a, and the oil outlet of the first one-way throttle valve 141a is connected to the port A of the second balance valve 132a. A second one-way throttle valve 142a is connected between the control oil port of the second balance valve 132a and the port A of the first balance valve 131a. The oil inlet of the second one-way throttle valve 142a is connected to the control oil port of the second balance valve 132a, and the oil outlet of the second one-way throttle valve 142a is connected to the port A of the first balance valve 131a. A third one-way throttle valve 143a is connected between the control oil port of the third balance valve 133a and the port A of the fourth balance valve 134a. The oil inlet of the third one-way throttle valve 143a is connected to the control oil port of the third balance valve 133a, and the oil outlet of the third one-way throttle valve 143a is connected to the port A of the fourth balance valve 134a. A fourth one-way throttle valve 144a is connected between the control oil port of the fourth balance valve 134a and the port A of the third balance valve 133a. The oil inlet of the fourth one-way throttle valve 144a is connected to the control oil port of the fourth balance valve 134a, and the oil outlet of the fourth one-way throttle valve 144a is connected to the port A of the third balance valve 133a.

[0049] With the above arrangement, when the platform assembly rises, the hydraulic oil in the first lifting drive oil cylinder enters the first balance valve 131a from the oil inlet and flows out from the port A of the first balance valve 131a. While the hydraulic oil passes through the second balance valve 132a and enters the oil return port of the first lifting drive oil cylinder, the second balance valve 132a delivers hydraulic oil to the control oil port of the first balance valve 131a. After being regulated by the first one-way throttle valve 141a, the overflow valve of the first balance valve 131a is opened, thereby increasing the hydraulic oil on the oil inlet side of the first lifting drive oil cylinder, and further improving the working efficiency of the first lifting drive oil cylinder. Similarly, the hydraulic oil in the second lifting drive oil cylinder 112a enters the third balance valve 133a from the oil inlet and flows out from the port A of the third balance valve 133a. While the hydraulic oil passes through the fourth balance valve 134a and enters the oil return port of the second lifting drive oil cylinder 112a, the fourth balance valve 134a delivers hydraulic oil to the control oil port of the third balance valve 133a. After being regulated by the third one-way throttle valve 143a, the overflow valve of the third balance valve 133a is opened, thereby increasing the flow rate of the hydraulic oil on the oil return port side of the first lifting drive oil cylinder, and further improving the working efficiency of the first lifting drive oil cylinder.

[0050] When the platform component descends, the hydraulic oil in the first lifting drive oil cylinder enters the second balance valve 132a from the oil return port and flows out from port A of the second balance valve 132a; while the hydraulic oil passes through the first balance valve 131a and enters the oil inlet of the first lifting drive oil cylinder, the first balance valve 131a delivers hydraulic oil to the control oil port of the second balance valve 132a. After being regulated by the second one-way throttle valve 142a, the overflow valve of the second balance valve 132a is opened, thereby increasing the flow rate of the hydraulic oil on the oil return port side of the first lifting drive oil cylinder, and further improving the working efficiency of the second lifting drive oil cylinder 112a; similarly, the hydraulic oil in the second lifting drive oil cylinder 112a enters the fourth balance valve 134a from the oil return port and flows out from port A of the fourth balance valve 134a; while the hydraulic oil passes through the third balance valve 133a and enters the oil inlet of the second lifting drive oil cylinder 112a, the third balance valve 134a delivers hydraulic oil to the control oil port of the fourth balance valve 133a. After being regulated by the fourth one-way throttle valve 142a, the overflow valve of the fourth balance valve 134a is opened, thereby increasing the flow rate of the hydraulic oil on the oil return port side of the first lifting drive oil cylinder, and further improving the working efficiency of the first lifting drive oil cylinder.

[0051] The hatch cover system 2a includes a first hatch cover oil cylinder 211a, a second hatch cover oil cylinder 212a, a first hatch cover balance valve 221a, a second hatch cover balance valve 222a, a third hatch cover balance valve 223a, and a fourth hatch cover balance valve 224a; the A port of the first hatch cover balance valve 221a and the A port of the third hatch cover balance valve 223a are connected in parallel to the oil outlet of the multi-way valve; the A port of the second hatch cover balance valve 222a and the A port of the fourth hatch cover balance valve 224a are connected in parallel to the oil outlet of the multi-way valve; the B port of the first hatch cover balance valve 221a is connected to the oil inlet of the first hatch cover oil cylinder 211a, and the B port of the second hatch cover balance valve 222a is connected to the oil return port of the first hatch cover oil cylinder 211a; the B port of the third hatch cover balance valve 223a is connected to the oil inlet of the second hatch cover oil cylinder 212a, and the B port of the fourth hatch cover balance valve 224a is connected to the oil return port of the second hatch cover oil cylinder 212a; with the above settings, when the hatch cover is opened, the hydraulic oil in the first lifting drive hatch cover hydraulic cylinder enters the first hatch cover balance valve 221a from the oil inlet and flows out from the A port of the first hatch cover balance valve 221a; while the hydraulic oil passes through the second balance valve 132a and enters the oil return port of the first hatch cover lifting drive oil cylinder, the second hatch cover balance valve 222a delivers hydraulic oil to the control oil port of the first hatch cover balance valve 221a, thereby opening the overflow valve of the first hatch cover balance valve 221a, thereby increasing the hydraulic oil on the oil inlet side of the first lifting drive hydraulic hatch cover oil cylinder, and thus improving the working efficiency of the first hatch cover lifting drive hydraulic oil cylinder; similarly, the hydraulic oil in the second hatch cover oil lifting drive hydraulic cylinder enters the third balance valve 133a from the oil inlet and flows out from the A port of the third balance valve 133a; while the hydraulic oil passes through the fourth balance valve 134a and enters the oil return port of the second hatch cover lifting drive oil cylinder, the fourth balance valve 134a delivers hydraulic oil to the control oil port of the third balance valve 133a, thereby opening the overflow valve of the third balance valve 133a, thereby increasing the flow rate of the hydraulic oil on the oil return port side of the first and second hatch cover oil lifting drive hydraulic cylinders, and thus improving the working efficiency of the first and second hatch cover oil lifting drive hydraulic cylinders.

[0052] When the hatch cover is closed, the hydraulic oil in the first hatch cover oil cylinder 211a enters the first and second hatch cover balance valve from the oil inlet and return port, and flows out from port A of the first and second hatch cover balance valve; while the hydraulic oil passes through the second and first balance valve and enters the oil return and inlet port of the first hatch cover oil cylinder 211a, the second and first hatch cover balance valve delivers hydraulic oil to the control oil port of the first and second hatch cover balance valve, thereby opening the overflow valve of the first and second hatch cover balance valve, thereby increasing the hydraulic oil on the oil inlet and return port side of the first hatch cover oil cylinder 211a, and thus increasing the working efficiency of the first hatch cover oil cylinder 211a; similarly, the hydraulic oil in the second hatch cover oil cylinder 212a enters the fourth and third balance valve from the oil inlet and return port, and flows out from port A of the third and fourth balance valve; while the hydraulic oil passes through the fourth and third balance valve and enters the oil return and inlet port of the second hatch cover oil cylinder 212a, the fourth and third balance valve delivers hydraulic oil to the control oil port of the third and fourth balance valve, thereby opening the overflow valve of the third and fourth balance valve, thereby increasing the flow rate of the hydraulic oil on the oil return port side of the first and second hatch cover oil cylinders, and thus increasing the working efficiency of the first and second hatch cover oil cylinders.

[0053] The vehicle depot floor locking pin system and the hangar floor locking pin system each include a locking pin drive system 3a. In this embodiment, the locking pin drive system 3a includes more than two and up to seven locking pin cylinders 31a arranged in parallel. The oil inlet and oil return port of each locking pin cylinder 31a are respectively connected to a first locking pin one-way throttle valve 32a and a second locking pin one-way throttle valve 33a; port A of the first locking pin one-way throttle valve 32a is connected to the oil outlet of the multi-way valve, and port B of the first locking pin one-way throttle valve 32a is connected to the oil inlet of the locking pin cylinder 31a; port A of the second locking pin one-way throttle valve 33a is connected to the oil return port of the multi-way valve, and port B of the first locking pin one-way throttle valve 32a is connected to the oil return port of the locking pin cylinder 31a; with the above settings, the speed of the locking pin cylinder 31a can be adjusted by adjusting the first one-way throttle valve 141a and the second one-way throttle valve 142a.

[0054] The flap system includes two first flap cylinders 41a and two second flap cylinders 42a; the oil inlet of each first flap cylinder 41a is connected to a first and first flap balance valve 411a, and the oil outlet of each first flap cylinder 41a is connected to a first and second flap balance valve 412a.

[0055] The port A of the first flap balance valve 411a is connected to the oil outlet of the multi-way valve, and the port B of the first flap balance valve 411a is connected to the oil inlet of the first flap cylinder 41a; the port A of the second flap balance valve 412a is connected to the oil return port of the multi-way valve, and the port B of the second flap balance valve 412a is connected to the oil return port of the first flap cylinder 41a; the control oil port of the first flap balance valve 411a is connected to the port A of the second flap balance valve 412a; the control oil port of the second flap balance valve 412a is connected to the port A of the first flap balance valve 411a; the oil inlet of each second flap cylinder is connected with a second first flap balance valve 421a, and the oil outlet of each second flap cylinder is connected with a second second flap balance valve 422a.

[0056] The port A of the second first flap balance valve 421a is connected to the oil outlet of the multi-way valve, and the port B of the second first flap balance valve 421a is connected to the oil inlet of the second flap cylinder 42a; the port A of the second second flap balance valve 422a is connected to the oil return port of the multi-way valve, and the port B of the second second flap balance valve 422a is connected to the oil return port of the second flap cylinder 42a; the control oil port of the second first flap balance valve 421a is connected to the port A of the second second flap balance valve 422a; the control oil port of the second second flap balance valve 422a is connected to the port A of the second first flap balance valve 421a; with the above settings, when the hatch cover is closed, the flap is in the stowed state; when the platform assembly needs to rise to the deck, the hatch cover system 2a drives the hatch cover to open, and then the flap system drives the first flap cylinder 41a and the second flap cylinder 42a to extend, driving the flap to open. After the platform assembly rises to the deck, the flap system drives the first flap cylinder 41a and the second flap cylinder to contract, causing the flap to rotate and fit on the edge of the platform assembly, so that the flap fills the gap between the deck and the hatch opening, preventing water on the deck from flowing into the hatch opening.

[0057] Furthermore, it also includes a self-weight balance system for maintaining the balance of the platform assembly, which is respectively connected to the first lifting drive cylinder and the second lifting drive cylinder 112a. The oil port of the platform assembly self-weight balance system is connected to the oil outlet of the accumulator 5a; in this way, the balance system is connected to the accumulator 5a, and the accumulator 5a can compensate for the leakage of the two lifting drive cylinders, so that the two lifting drive cylinders maintain a constant pressure, thereby ensuring the stability of the platform assembly.

Claims

1. An inboard elevator, characterized in that: It includes a hydraulic system for controlling an inboard elevator and a fall prevention mechanism for preventing the elevator from falling; the elevator includes a platform assembly, a lifting drive mechanism for driving the platform assembly to lift, and a flap provided in the gap between the hatch on the hull deck and the hull, and the flap is used to fill the gap between the hatch and the deck; the fall prevention mechanism includes a locking pin mechanism and a detection device; The platform assembly includes a lifting platform and a platform bracket; the lifting platform is connected to the platform bracket; the platform bracket includes more than two rope winding wheel mounting parts and more than two rope winding connection parts; the two rope winding wheel mounting parts and the two rope winding connection parts are symmetrically arranged on the platform bracket; the two rope winding wheel mounting parts are close to one side of the platform bracket; the two rope winding connection parts are close to the other side of the platform bracket, and the rope winding connection parts are located above the rope winding wheel mounting parts; the lifting platform is provided to drive the aircraft to lift; the platform bracket is provided to support the lifting platform; The lifting drive mechanism includes a lifting drive device, a rope winding wheel set and a lifting rope, and both ends of the lifting rope are respectively connected to the platform assembly; there are two lifting ropes in total, and the two lifting ropes are wound around the rope winding wheel set and the lifting drive device at intervals, and the lifting drive device is used to drive the lifting rope to move on the rope winding wheel set, so as to drive the lifting platform to lift; The detection device is arranged on one side of the lifting rope, and the detection device includes two first travel switches and two second travel switches; the two first travel switches are arranged on one side of the platform assembly, and the two first travel switches are respectively abutted against one corresponding lifting rope; the two second travel switches are arranged on the other side of the platform assembly opposite to the first travel switches, and the two second travel switches are respectively abutted against one corresponding lifting rope; when one lifting rope is disconnected, the corresponding abutted first travel switch or second travel switch performs contact action to output a signal for alarm; The locking pin mechanism includes a locking pin oil cylinder, a locking pin, a locking pin guide and a locking member. At each flat layer where the elevator stops, and on the edge close to the elevator side of the flat layer, there are locking pin oil cylinders respectively. The locking pin guide is arranged on one side of the locking pin oil cylinder. The locking pin guide is provided with a through groove arranged along its axis direction. The locking pin is movably arranged in the through groove of the locking pin guide. The output end of the locking pin oil cylinder is fixedly connected to one end of the locking pin. The locking members are respectively arranged at the edge of the lower side of the lifting platform; through holes matched with the locking pins are arranged on the locking members. The locking pin is driven by the extension of the locking pin oil cylinder to insert into the through hole of the locking member, so as to lock the lifting platform; The hydraulic system includes a hydraulic pump station, a platform component drive system, a hatch system, a vehicle garage leveling lock pin system, a hangar leveling lock pin system, a flap system, an accumulator, a proportional speed control valve, and a multi-way valve; the P ports of the proportional speed control valve and the multi-way valve are respectively connected to the P port of the hydraulic pump station; the T ports of the proportional speed control valve and the multi-way valve are respectively connected to the T port of the hydraulic pump station; the L ports of the proportional speed control valve and the multi-way valve are respectively connected to the L port of the hydraulic pump station; the inlet and outlet ports of the platform component drive system are respectively connected to the proportional speed control valve; the inlet and outlet ports of the hatch system are respectively connected to the multi-way valve; the inlet and outlet ports of the hangar leveling lock pin system are respectively connected to the multi-way valve; the inlet and outlet ports of the garage leveling lock pin system are respectively connected to the multi-way valve; the inlet and outlet ports of the flap system are respectively connected to the multi-way valve; The oil discharge port of the accumulator is connected to the multi-way valve, and the outlet ports of the multi-way valve are respectively connected to the inlet and outlet ports of the platform component drive system; the P port of the accumulator is respectively connected to the P ports of the proportional speed control valve and the multi-way valve, and the T port of the accumulator is respectively connected to the T ports of the proportional speed control valve and the multi-way valve; the hatch system, the vehicle garage leveling lock pin system, the hangar leveling lock pin system, and the flap system are respectively controlled by controlling the multi-way valve; The flap system includes two first flap cylinders and two second flap cylinders; the inlet port of each first flap cylinder is connected with a first one flap balance valve, and the outlet port of each first flap cylinder is connected with a first two flap balance valve; The A port of the first one flap balance valve is connected to the outlet port of the multi-way valve, and the B port of the first one flap balance valve is connected to the inlet port of the first flap cylinder; the A port of the first two flap balance valve is connected to the return oil port of the multi-way valve, and the B port of the first two flap balance valve is connected to the return oil port of the first flap cylinder; the control oil port of the first one flap balance valve is connected to the A port of the first two flap balance valve; the control oil port of the first two flap balance valve is connected to the A port of the first one flap balance valve; The inlet port of each second flap cylinder is connected with a second one flap balance valve, and the outlet port of each second flap cylinder is connected with a second two flap balance valve; The A port of the second one flap balance valve is connected to the outlet port of the multi-way valve, and the B port of the second one flap balance valve is connected to the inlet port of the second flap cylinder; the A port of the second two flap balance valve is connected to the return oil port of the multi-way valve, and the B port of the second two flap balance valve is connected to the return oil port of the second flap cylinder; the control oil port of the second one flap balance valve is connected to the A port of the second two flap balance valve; the control oil port of the second two flap balance valve is connected to the A port of the second one flap balance valve; When it is necessary to control the lifting action of the platform assembly, the lifting of the platform assembly can be driven by controlling the flow direction of the hydraulic oil of the proportional speed control valve; when the platform assembly reaches the flat layer of the hangar or the flat layer of the garage, the multi-way valve adjusts the hydraulic oil output from the oil outlet to the locking pin system corresponding to the flat layer where the platform assembly is currently located according to the current flat layer position of the platform assembly, so that the locking pin system of the current flat layer locks the platform assembly. After the platform assembly completes loading on the current flat layer, the multi-way valve controls the locking pin system of the current flat layer to release the lock on the platform assembly, and then the proportional speed control valve is used to drive the platform assembly to the next target flat layer. When the platform assembly needs to rise to the deck for operation, the multi-way valve controls the hatch system 2a to open the hatch, and then the multi-way valve adjusts the oil outlet to supply oil to the flap system to drive the flap to open; The platform assembly drive system includes a first lifting drive oil cylinder, a second lifting drive oil cylinder, a first lifting reversing valve, a second lifting reversing valve, a first balance valve, a second balance valve, a third balance valve, and a fourth balance valve; The P port of the first lifting reversing valve is connected to the oil outlet of the proportional speed control valve, and the T port of the first lifting reversing valve is connected to the oil return port of the proportional speed control valve; the A port of the first lifting reversing valve is connected to the A port of the first balance valve, and the B port of the first lifting reversing valve is connected to the A port of the second balance valve; the B port of the first balance valve is connected to the oil inlet of the first lifting drive oil cylinder, and the B port of the second balance valve is connected to the oil return port of the first lifting drive oil cylinder; The P port of the second lifting reversing valve is connected to the oil outlet of the proportional speed control valve, and the T port of the second lifting reversing valve is connected to the oil return port of the proportional speed control valve; the A port of the second lifting reversing valve is connected to the A port of the third balance valve, and the B port of the second lifting reversing valve is connected to the A port of the fourth balance valve; the B port of the third balance valve is connected to the oil inlet of the second lifting drive oil cylinder, and the B port of the fourth balance valve is connected to the oil return port of the second lifting drive oil cylinder; A first one-way throttle valve is connected between the control oil port of the first balance valve and the A port of the second balance valve. The oil inlet of the first one-way throttle valve is connected to the control oil port of the first balance valve, and the oil outlet of the first one-way throttle valve is connected to the A port of the second balance valve; A second one-way throttle valve is connected between the control oil port of the second balance valve and the A port of the first balance valve. The oil inlet of the second one-way throttle valve is connected to the control oil port of the second balance valve, and the oil outlet of the second one-way throttle valve is connected to the A port of the first balance valve; A third one-way throttle valve is connected between the control oil port of the third balance valve and the A port of the fourth balance valve. The oil inlet of the third one-way throttle valve is connected to the control oil port of the third balance valve, and the oil outlet of the third one-way throttle valve is connected to the A port of the fourth balance valve; A fourth one-way throttle valve is connected between the control oil port of the fourth balance valve and the A port of the third balance valve. The oil inlet of the fourth one-way throttle valve is connected to the control oil port of the fourth balance valve, and the oil outlet of the fourth one-way throttle valve is connected to the A port of the third balance valve; The vehicle garage floor lock pin system and the hangar floor lock pin system respectively include a lock pin driving system, which includes more than two lock pin cylinders arranged in parallel. A first lock pin one-way throttle valve and a second lock pin one-way throttle valve are respectively connected to the oil inlet and the oil return port of each lock pin cylinder; the port A of the first lock pin one-way throttle valve is connected to the oil outlet of the multi-way valve, and the port B of the first lock pin one-way throttle valve is connected to the oil inlet of the lock pin cylinder; the port A of the second lock pin one-way throttle valve is connected to the oil return port of the multi-way valve, and the port B of the first lock pin one-way throttle valve is connected to the oil return port of the lock pin cylinder.

2. The inboard elevator according to claim 1, wherein: The rope winding wheel set includes rope winding wheel one, rope winding wheel two, rope winding wheel three, rope winding wheel four, rope winding wheel five, rope winding wheel six and rope winding wheel seven; there are two rope winding wheels five, six and seven; the two rope winding wheels five, the two rope winding wheels six and the two rope winding wheels seven are symmetrically arranged with respect to the platform assembly; the rope winding wheel seven is installed on the platform assembly; the lifting drive device has a driving end and a fixed end; the rope winding wheel one is installed at the fixed end; the rope winding wheel two is installed at the driving end; the rope winding wheels three and four are sequentially arranged between the rope winding wheels five and two; the two ends of the lifting rope are respectively connected to the platform assembly; there are two lifting ropes in total, and the two lifting ropes are arranged in parallel, and the two lifting ropes are wound around one rope winding wheel seven, one rope winding wheel six, one rope winding wheel five, rope winding wheel one, rope winding wheel two, rope winding wheel three, rope winding wheel four, the other rope winding wheel five, the other rope winding wheel six and the other rope winding wheel seven; the lifting drive device drives the rope winding wheel seven to reciprocate between the rope winding wheels five and six by driving the rope winding wheel two.

3. The inboard elevator according to claim 1, characterized in that: A lock pin travel switch is further provided on the lock pin. When the lock pin is inserted into the locking member, the contacts of the lock pin travel switch act to output a signal.

4. The inboard elevator according to claim 1, characterized in that: Damping springs are provided at the bottom of the platform.

5. The inboard elevator according to claim 1, characterized in that: The elevator further includes a lifting guiding device; there are two lifting guiding devices; the two lifting guiding devices are connected to the platform assembly; the two lifting guiding devices are close to the side of the platform assembly where it is connected to the rope winding wheel seven; and are located between the two rope winding wheels seven; the lifting guiding device includes a lifting guide rail assembly and a lifting guiding member; the platform assembly is connected to the lifting guiding member; the lifting guiding member is provided with a lifting guide wheel set; the lifting guide wheel set is slidably arranged on the lifting guide rail assembly; The lifting guide rail assembly includes a lifting guide rail one and a lifting guide rail two; the lifting guide rail one and the lifting guide rail two are formed with slide rails; the lifting guide wheel set includes a guide wheel bracket and a pulley assembly, an auxiliary wheel one and an auxiliary wheel two installed on the guide wheel bracket; the pulley assembly is slidably arranged on the slide rails; the auxiliary wheel one is slidably arranged on the side edge of the lifting guide rail one and the radial direction of the auxiliary wheel one is perpendicular to the side edge of the platform assembly; the auxiliary wheel two is slidably arranged on the side edge of the lifting guide rail two and the radial direction of the auxiliary wheel one is perpendicular to the side edge of the platform assembly.

6. The inboard elevator according to claim 1, characterized in that: The hatch cover system includes a first hatch cover oil cylinder, a second hatch cover oil cylinder, a first hatch cover balance valve, a second hatch cover balance valve, a third hatch cover balance valve, and a fourth hatch cover balance valve; the A port of the first hatch cover balance valve and the A port of the third hatch cover balance valve are connected in parallel to the oil outlet of the multi-way valve; the A port of the second hatch cover balance valve and the A port of the fourth hatch cover balance valve are connected in parallel to the oil outlet of the multi-way valve; the B port of the first hatch cover balance valve is connected to the oil inlet of the first hatch cover oil cylinder, and the B port of the second hatch cover balance valve is connected to the oil return port of the first hatch cover oil cylinder; the B port of the third hatch cover balance valve is connected to the oil inlet of the second hatch cover oil cylinder, and the B port of the fourth hatch cover balance valve is connected to the oil return port of the second hatch cover oil cylinder.

7. The inboard elevator according to claim 1, characterized in that: It further includes a self-weight balance system for maintaining the balance of the platform assembly. The self-weight balance system is respectively connected to the first lifting drive oil cylinder and the second lifting drive oil cylinder, and the oil port of the platform assembly self-weight balance system is connected to the oil outlet of the accumulator.

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