Active and passive combined type space cabin door locking system

Abstract

The invention discloses an active and passive combined type space cabin door locking system which comprises a center lock and an end face lock. The central lock comprises an active lock and a passive lock; the driving lock comprises a driving screw rod, an output bevel gear, an input bevel gear, a speed reducer and a motor. The passive lock comprises a guide nut; the end face lock comprises a driving end and a driven end; the driving end comprises a U-shaped groove and a conical nest; the driven end comprises a cylindrical section and a conical head. According to the center lock, locking of the cabin door is achieved through the driving screw and the guide nut, and the center lock is designed in an active locking mode and can adapt to angle changes in the cabin door locking process; the end face lock achieves fixed connection of the end of the large cabin door and the middle machine body through the clamping groove type design, the passive locking design is adopted, and locking of the split cabin door is achieved only through driving of the center lock. The active and passive combined type space cabin door locking system is reasonable in layout, simple in structure and high in reliability.

Description

Technical Field

[0001] The present invention relates to the field of hatch mechanism products, and in particular to an active and passive combined space hatch locking system. Background Art

[0002] Bifold hatch systems offer a wide opening, convenient cargo access, and a compact structure. However, increasing their structural rigidity is difficult. In situations where there is a pressure differential between inside and outside, sealing requirements, and the need for automatic opening or locking, complex locking systems must be installed in the middle and ends of the hatch to ensure sufficient joint rigidity.

[0003] At present, the double-doors on the space shuttle use a locking system consisting of a centerline latch and two end wall latches, but each locking mechanism needs to be driven separately, the system is relatively complex, and to a certain extent reduces the reliability of repeated locking and unlocking of large-opening doors. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an active-passive combined space door locking system, which reduces the complexity of the door system.

[0005] The specific technical solutions of the present invention are as follows:

[0006] An active and passive combined space hatch locking system:

[0007] Contains center lock and end lock;

[0008] The central lock is actively locked and includes an active lock and a passive lock;

[0009] The active lock includes a driving screw, an output bevel gear, an input bevel gear, a reducer, and a motor;

[0010] The passive lock includes a guide nut;

[0011] The output bevel gear is mounted on the drive screw; the reducer is connected to the motor; the input bevel gear passes through the inner ring of the bearing and is connected to the reducer; the input bevel gear rotates under the action of the motor, driving the output bevel gear to rotate and then driving the drive screw to rotate; the drive screw is threadedly engaged with the guide nut through the guide groove, and rotates under the action of the motor until it is locked in place with the guide nut;

[0012] The end face lock is passively locked and includes an active end and a passive end;

[0013] The active end includes a U-shaped groove and a conical socket;

[0014] The passive end includes a cylindrical section and a cone head;

[0015] The U-shaped groove and the cylindrical section are tightly matched to achieve locking in two directions in the YOZ plane; the cone socket and the cone head are tightly tangentially matched to achieve locking in the X direction.

[0016] There are two sets of center locks, which are respectively arranged on the center lines of cabin door A and cabin door B; each set of center locks includes an active lock and a passive lock.

[0017] There are four sets of end face locks, which are respectively arranged on the end faces of both sides of cabin door A and cabin door B; each set of end face locks includes an active end and a passive end.

[0018] In the center lock:

[0019] The active lock is arranged on the hatch A, and further comprises an active lock bracket A, an active lock bracket B, an active lock housing, a side baffle, a limit block, a top ring, a bearing end cover, and a housing bushing;

[0020] The active lock housing is provided with hollow shafts on both sides, and the central part is used to install the input bevel gear; the hollow shaft is installed on the combination of the active lock bracket A and the active lock bracket B through the housing bushing, so that the active lock housing rotates around the axis;

[0021] The side baffle is installed on the side of the active lock housing to protect the internal structure of the active lock;

[0022] The driving screw is mounted on the active lock housing through two bearings and a bearing end cover. When in operation, it rotates around the rotation axis of the driving screw, and the rotation direction is perpendicular to the rotation direction of the active lock housing.

[0023] The reducer and the motor are mounted on the active lock housing by screws;

[0024] The input bevel gear is connected to the active lock housing through a bearing and is connected to the reducer through the inner ring of the bearing;

[0025] The active lock bracket A and the active lock bracket B are each provided with a semicircular groove, and the two are connected by fasteners to support the active lock housing and the housing bushing;

[0026] The output bevel gear contacts the inner ring of the bearing through the top ring; the top ring is used to limit the axial movement of the output bevel gear;

[0027] The output bevel gear is mounted on the driving screw;

[0028] The input bevel gear rotates under the action of the motor, driving the output bevel gear to rotate and then driving the drive screw to rotate;

[0029] The active lock drives the output bevel gear and the input bevel gear to rotate through the motor and the reducer, thereby driving the drive screw to rotate;

[0030] The driving screw, output bevel gear and input bevel gear, reducer, motor and active lock housing are mounted on the combination of active lock bracket A and active lock bracket B through the housing bushing, and the whole body swings slightly;

[0031] The limit block is installed at the bottom of the active lock bracket A and is used to limit the rotation angle of the active lock housing.

[0032] There are two limit blocks.

[0033] The active lock further comprises a key for connecting the output bevel gear and the drive screw.

[0034] The passive lock is arranged on the hatch B and further comprises a passive lock bracket A, a passive lock bracket B and a nut sliding bushing;

[0035] The passive lock bracket A and the passive lock bracket B each have a semicircular groove, and the two are fixed together by fasteners to support the guide nut and the nut sliding bushing;

[0036] The guide nut has cylindrical shafts on both sides, which are installed on the combination of the passive lock bracket A and the passive lock bracket B through the nut bushing to make the guide nut rotate around the axis;

[0037] The passive lock bracket B is used to limit the rotation of the guide nut so that the guide nut can only swing at a small angle;

[0038] The guide nut has a guide structure at the end thereof, so that the active lock drive screw moves with the hatch A and the hatch B to the closing process, and cooperates with the screw hole of the guide nut;

[0039] The drive screw rotates under the action of the motor until it is locked into place with the guide nut, and the self-locking characteristics of the threaded connection are used to achieve unidirectional locking of hatch A and hatch B; because the drive screw and the guide nut both swing at a small angle, the screw nut adapts to the angle changes during the locking process of hatch A and hatch B when it is tightened.

[0040] In the end face lock, the active end is set at the vertices of the two end faces of hatch A and hatch B, and moves with hatch A and hatch B.

[0041] In the end face lock, the passive end further comprises a gasket and a base plate, which are arranged on the middle body at both ends of the hatch A and the hatch B;

[0042] The gasket is installed at the bottom of the cone head to achieve a tight fit between the cone socket and the cone head;

[0043] The bottom plate is installed on the outer surface of the passive end to play a supporting role.

[0044] A method for using an active-passive combined space hatch locking system:

[0045] When installing the end face lock U-shaped groove and the cylindrical section, ensure that they fit tightly after hatch A and hatch B are locked in place, and the center plane of the U-shaped groove is tangent to the trajectory of the active end moving along with hatch A and hatch B around the hatch hinge; the cone socket and the cone head are tangent to each other, and the center plane of the cone socket and the cone head is tangent to the trajectory of the active end moving along with hatch A and hatch B around the hatch hinge; after hatch A and hatch B are folded into place, the cone socket and the cone head are made to fit tightly by adjusting the number of gaskets.

[0046] The center lock and the end lock work in a coordinated manner as follows:

[0047] As doors A and B move together around their hinges under external pressure, the active and passive locks of the center lock approach each other. Under external pressure, the drive screw engages the guide nut through the guide groove and, driven by the motor, rotates until it locks into place with the guide nut. The self-locking nature of the threaded connection allows the center sections of doors A and B to be locked. Because both the drive screw and the guide nut oscillate slightly, the screw and nut adapt to the angular changes during the locking process of doors A and B as they are tightened.

[0048] The active end of the end face lock follows the movement of doors A and B. Since the center plane of the active end of the end face lock is tangent to the movement trajectory of doors A and B at that location, after doors A and B are brought together and the center lock locks doors A and B, the cone head and cone socket, as well as the U-shaped groove and cylindrical section, all fit tightly into place. Because the U-shaped grooves of the end face locks on doors A and B on both sides are at a certain angle to each other, the U-shaped grooves on both sides cannot move relative to the cylindrical section, thus achieving locking of the ends of doors A and B in two directions within the YOZ plane. At the same time, the cone socket and cone head fit tightly together, preventing the ends of doors A and B from moving along the X direction. The active center lock fixes the middle parts of doors A and B, and the passive end face locks fix the ends of doors A and B, ensuring the positional constraints and connection rigidity of doors A and B with the central fuselage.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] The center lock uses a drive screw and a guide nut to lock the hatch, and allows the drive screw and the guide nut to swing at a small angle to adapt to the angle changes during the hatch locking process. It has a simple structure and is novel.

[0051] The end lock adopts a slot-type design with a reasonable layout. It utilizes the geometric relationship after the double-door is closed to achieve a fixed connection between the end of the large door and the middle fuselage.

[0052] The end face locking of the double-leaf door adopts a passive locking design, and the locking of the double-leaf door is achieved only by the drive of the central lock. It has a simple structure and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 This is an overall structural diagram of an active and passive combined space door locking system after the door is deployed in an embodiment of the present invention;

[0055] Figure 2 This is a partially enlarged structural diagram of the center lock active lock in an embodiment of the present invention;

[0056] Figure 3 This is a partially enlarged structural diagram of a central lock passive lock in an embodiment of the present invention;

[0057] Figure 4 This is a partially enlarged structural diagram of the active end of the end face lock in an embodiment of the present invention;

[0058] Figure 5 This is a partially enlarged structural diagram of the passive end of the end face lock in an embodiment of the present invention;

[0059] Figure 6 This is a structural diagram of the center lock in a locked state in an embodiment of the present invention;

[0060] Figure 7 This is a schematic structural diagram in the plane direction of the end face lock in a locked state according to an embodiment of the present invention;

[0061] Figure 8 This is a schematic structural diagram along the center body direction in the locked state of the end face lock in an embodiment of the present invention.

[0062] Figure 1: 1-1, door A; 1-2, door B; 1-3, door hinge; 1-4, middle body; 2-10, active lock; 2-20, passive lock; 2-11, active lock bracket A; 2-12, active lock bracket B; 2-13, active lock housing; 2-14, drive screw; 2-15, side baffle; 2-16, limit block; 2-17, reducer; 2-18, motor; 2-19, output bevel gear; 2-110, input bevel gear Gear; 2-111, key; 2-112, top ring; 2-113, bearing end cover; 2-114, housing bushing; 2-21, passive lock bracket A; 2-22, passive lock bracket B; 2-23, guide nut; 2-24, nut sliding bushing; 3-10, active end; 3-20, passive end; 3-11, U-shaped groove; 3-12, conical socket; 3-21, cylindrical section; 3-22, conical head; 3-23, gasket; 3-24, base plate. DETAILED DESCRIPTION

[0063] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and use non-precise ratios, and are only used for the purpose of conveniently and clearly assisting in explaining the embodiments of the present invention.

[0064] This embodiment discloses an active-passive combined space cabin door locking system, which is particularly suitable for aircraft and includes a center lock and an end face lock.

[0065] The overall structure of an active and passive combined space hatch locking system after the hatch is deployed is shown in the figure below. Figure 1 As shown, the door structure includes door A1-1, door B1-2, door hinge 1-3, and center body 1-4. Doors A1-1 and B1-2 are hingedly connected to center body 1-4 via door hinge 1-3, and each rotates around door hinge 1-3. There are two sets of symmetrical center locks, located along the center lines of doors A1-1 and B1-2. There are four sets of end locks, one on each side of door A1-1 and door B1-2. The center locks include active locks 2-10 and passive locks 2-20.

[0066] An active and passive combined space hatch locking system:

[0067] Contains center lock and end lock;

[0068] The center lock is actively locked and includes an active lock 2-10 and a passive lock 2-20;

[0069] The enlarged structure diagram of the active lock of the center lock is as follows: Figure 2 As shown, the active lock 2-10 includes a driving screw 2-14, an output bevel gear 2-19, an input bevel gear 2-110, a reducer 2-17, and a motor 2-18;

[0070] The partially enlarged structure diagram of the center lock passive lock is as follows Figure 3 As shown, the passive lock 2-20 includes a guide nut 2-23;

[0071] The structure diagram of the center lock in locking state is as follows Figure 6 As shown, the output bevel gear 2-19 is installed on the driving screw 2-14; the reducer 2-17 is connected to the motor 2-18; the input bevel gear 2-19 is connected to the reducer 2-17 through the inner ring of the bearing; the input bevel gear 2-19 rotates under the action of the motor 2-18, driving the output bevel gear 2-18 to rotate and then driving the driving screw 2-14 to rotate; the driving screw 2-14 is threadedly matched with the guide nut 2-23 through the guide groove, and rotates under the action of the motor 2-18 until it is locked in place with the guide nut 2-23;

[0072] The end face lock is passively locked and includes an active end 3-10 and a passive end 3-20;

[0073] The active end 3-10 includes a U-shaped groove 3-11 and a conical socket 3-12;

[0074] The passive end 3-20 includes a cylindrical section 3-21 and a cone head 3-22;

[0075] The U-shaped groove 3-11 and the cylindrical section 3-21 are tightly matched to achieve locking in two directions in the YOZ plane; the cone socket 3-12 and the cone head 3-22 are tightly tangentially matched to achieve locking in the X direction.

[0076] There are two sets of central locks, which are respectively arranged on the center lines of the cabin door A1-1 and the cabin door B1-2; each set of central locks includes an active lock 2-10 and a passive lock 2-20.

[0077] There are four sets of end face locks, which are respectively arranged on the end faces of both sides of the cabin door A1-1 and the cabin door B1-2; each set of the end face locks includes an active end 3-10 and a passive end 3-20.

[0078] In the center lock:

[0079] The active lock 2-10 is arranged on the hatch A1-1, and further includes an active lock bracket A2-11, an active lock bracket B2-12, an active lock housing 2-13, a side baffle 2-15, a limit block 2-16, a top ring 2-112, a bearing end cover 2-113, and a housing bushing 2-114;

[0080] The active lock housing 2-13 is provided with hollow shafts on both sides, and the central part is used to install the input bevel gear (2-19); the hollow shaft is installed on the combination of the active lock bracket A2-11 and the active lock bracket B2-12 through the housing bushing 2-114, so that the active lock housing 2-13 rotates around the axis;

[0081] The side baffle 2-15 is installed on the side of the active lock housing 2-13 to protect the internal structure of the active lock;

[0082] The driving screw 2-14 is mounted on the active lock housing 2-13 through two bearings and a bearing end cover 2-113. When working, it rotates around the rotation axis of the driving screw 2-14, and the rotation direction is perpendicular to the rotation direction of the active lock housing 2-13;

[0083] The reducer 2-17 and the motor 2-18 are mounted on the active lock housing 2-13 by screws;

[0084] The input bevel gear 2-110 is connected to the active lock housing 2-13 through a bearing and is connected to the reducer 2-17 through the inner ring of the bearing;

[0085] The active lock bracket A2-11 and the active lock bracket B2-12 are each provided with a semicircular groove, and the two are connected by fasteners to support the active lock housing 2-13 and the housing bushing 2-114;

[0086] The output bevel gear 2-19 contacts the inner ring of the bearing through the top ring 2-112; the top ring 2-112 is used to limit the axial movement of the output bevel gear 2-19;

[0087] The output bevel gear 2-19 is mounted on the driving screw 2-14;

[0088] The input bevel gear 2-110 rotates under the action of the motor 2-18, driving the output bevel gear 2-19 to rotate and then driving the driving screw 2-14 to rotate;

[0089] The limit block 2-16 is installed at the bottom of the active lock bracket A2-11 to limit the rotation angle of the active lock housing 2-13;

[0090] The active lock 2-10 drives the output bevel gear 2-19 and the input bevel gear 2-110 to rotate through the motor 2-18 and the reducer 2-17, thereby driving the driving screw 2-14 to rotate;

[0091] The driving screw 2-14, the output bevel gear 2-19 and the input bevel gear 2-110, the reducer 2-17, the motor 2-18 and the active lock housing 2-13 are installed on the combination of the active lock bracket A2-11 and the active lock bracket B2-12 through the housing bushing 2-114, and the whole body swings slightly.

[0092] There are two limit blocks 2-16.

[0093] The active lock 2-10 also includes a key 2-111 for connecting the output bevel gear 2-19 and the drive screw (2-14).

[0094] The passive lock 2-20 is provided on the hatch B1-2 and further comprises a passive lock bracket A2-21, a passive lock bracket B2-22 and a nut sliding bushing 2-24;

[0095] The passive lock bracket A2-21 and the passive lock bracket B2-22 each have a semicircular groove, and the two are fixed together by fasteners to support the guide nut 2-23 and the nut sliding bushing 2-24;

[0096] The guide nut 2-23 has cylindrical shafts on both sides and is installed on the combination of the passive lock bracket A2-21 and the passive lock bracket B2-22 through the nut bushing 2-24, so that the guide nut 2-23 rotates around the axis;

[0097] The passive lock bracket B2-22 is used to limit the rotation of the guide nut 2-23 so that the guide nut 2-23 can only swing at a small angle;

[0098] The guide nut 2-23 has a guide structure at the end thereof, so that the active lock driving screw 2-14 moves with the cabin door A1-1 and the cabin door B1-2 to the retraction process, and cooperates with the screw hole of the guide nut 2-23;

[0099] The driving screw 2-14 rotates under the action of the motor 2-18 until it is locked in place with the guide nut 2-23, and the self-locking characteristics of the threaded connection are used to achieve unidirectional locking of the cabin door A1-1 and the cabin door B1-2; because the driving screw 2-14 and the guide nut 2-23 both swing at a small angle, the screw nut adapts to the angle changes during the locking process of the cabin door A1-1 and the cabin door B1-2 when it is tightened.

[0100] The enlarged structural diagram of the active end of the end face lock is as follows: Figure 4 As shown, in the end face lock, the active end 3-10 is set at the vertices of the two end faces of the cabin door A1-1 and the cabin door B1-2, and moves with the cabin door A1-1 and the cabin door B1-2.

[0101] The partial enlarged structure diagram of the passive end of the end face lock is as follows Figure 5 As shown, in the end face lock, the passive end 3-20 further includes a gasket 3-23 and a bottom plate 3-24, which are arranged on the middle body 1-4 at both ends of the cabin door A1-1 and the cabin door B1-2;

[0102] The gasket 3-23 is installed at the bottom of the cone head 3-22 to achieve a tight fit between the cone socket 3-12 and the cone head 3-22;

[0103] The bottom plate 3-24 is installed on the outer surface of the passive end to play a supporting role

[0104] The working mode of the end face lock is:

[0105] The structural diagram of the plane direction in the locked state of the end face lock is as follows Figure 7 As shown, the structural diagram along the middle body direction in the locked state of the end face lock is as follows Figure 8 As shown, the U-shaped groove 3-11 and the cylindrical section 3-21 are installed to ensure that they fit tightly after the hatch A1-1 and the hatch B1-2 are locked in place, and the center plane of the U-shaped groove 3-11 is tangent to the trajectory of the active end 3-10 moving along with the hatch A1-1 and the hatch B1-2 around the hatch hinge 1-3; the conical socket 3-12 and the conical head 3-22 are tangent to each other, and the center planes of the conical socket 3-12 and the conical head 3-22 are tangent to the trajectory of the active end 3-10 moving along with the hatch A1-1 and the hatch B1-2 around the hatch hinge 1-3; after the hatch A1-1 and the hatch B1-2 are folded into place, the conical socket 3-12 and the conical head 3-22 are made to fit tightly.

[0106] The center lock and the end lock work in a coordinated manner as follows:

[0107] When doors A1-1 and B1-2 move together around hinges 1-3 under external pressure, the center lock's active lock 2-10 and passive lock 2-20 approach each other. Under external pressure, the drive screw 2-14 engages with the guide nut 2-23 via a guide groove and rotates under the action of the motor 2-18 until it locks into place with the guide nut 2-23. The self-locking nature of the threaded connection allows the center sections of doors A1-1 and B1-2 to be locked. Because both the drive screw 2-14 and the guide nut 2-23 oscillate slightly, the screw and nut adapt to the angular changes during the locking process of doors A1-1 and B1-2 as they are tightened.

[0108] The active end face lock 3-10 follows the movement of doors A1-1 and B1-2. Because the center plane of the active end face lock 3-10 is tangent to the movement trajectory of doors A1-1 and B1-2 at that location, when doors A1-1 and B1-2 are retracted and the center lock secures doors A1-1 and B1-2, the cone head 3-22 and cone socket 3-12, and the U-shaped groove 3-11 and cylindrical section 3-21, all fit tightly into place. Because the U-shaped grooves 3-11 of the end locks on doors A1-1 and B1-2 are angled, they cannot move relative to the cylindrical section 3-21, locking the ends of doors A1-1 and B1-2 in both directions within the YOZ plane. Furthermore, the tight fit between the conical sockets 3-12 and the conical heads 3-22 prevents movement of the ends of doors A1-1 and B1-2 along the X-axis. An active center lock secures the middle sections of doors A1-1 and B1-2, while passive end locks secure the ends of doors A1-1 and B1-2, ensuring positional restraint and connection rigidity between doors A1-1 and B1-2 and the central fuselage 1-4.

[0109] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art may utilize the methods and techniques disclosed above to make possible changes and modifications to the technical solutions of the present invention without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention. Matters not described in detail in the present specification are common knowledge to those skilled in the art.

Claims

1. An active and passive combined space hatch locking system, characterized by: Contains center lock and end lock; The central lock is actively locked and includes an active lock (2-10) and a passive lock (2-20); The active lock (2-10) includes a driving screw (2-14), an output bevel gear (2-19), an input bevel gear (2-110), a speed reducer (2-17), and a motor (2-18); The passive lock (2-20) includes a guide nut (2-23); The output bevel gear (2-19) is mounted on the driving screw (2-14); the reducer (2-17) is connected to the motor (2-18); the input bevel gear (2-19) passes through the inner ring of the bearing and is connected to the reducer (2-17); the input bevel gear (2-19) rotates under the action of the motor (2-18), driving the output bevel gear (2-18) to rotate and further driving the driving screw (2-14) to rotate; the driving screw (2-14) is threadedly engaged with the guide nut (2-23) through the guide groove, and rotates under the action of the motor (2-18) until it is locked in place with the guide nut (2-23); The end face lock is passively locked and includes an active end (3-10) and a passive end (3-20); The active end (3-10) comprises a U-shaped groove (3-11) and a cone socket (3-12); The passive end (3-20) comprises a cylindrical section (3-21) and a cone head (3-22); The U-shaped groove (3-11) and the cylindrical section (3-21) are tightly matched to achieve locking in two directions in the YOZ plane; the cone socket (3-12) and the cone head (3-22) are tightly tangentially matched to achieve locking in the X direction.

2. The active-passive combined space hatch locking system according to claim 1, characterized in that: There are two sets of central locks, which are respectively arranged on the center lines of cabin door A (1-1) and cabin door B (1-2); each set of central locks includes an active lock (2-10) and a passive lock (2-20).

3. The active-passive combined space hatch locking system according to claim 1, characterized in that: There are four sets of end face locks, which are respectively arranged on the end faces of both sides of the cabin door A (1-1) and the cabin door B (1-2); each set of the end face locks includes an active end (3-10) and a passive end (3-20).

4. The active-passive combined space door locking system according to claim 1, characterized in that: In the center lock: The active lock (2-10) is arranged on the hatch A (1-1), and further comprises an active lock bracket A (2-11), an active lock bracket B (2-12), an active lock housing (2-13), a side baffle (2-15), a limit block (2-16), a top ring (2-112), a bearing end cover (2-113), and a housing bushing (2-114); Hollow shafts are provided on both sides of the active lock housing (2-13), and the central portion is used to install the input bevel gear (2-19); the hollow shafts are installed on the combination of the active lock bracket A (2-11) and the active lock bracket B (2-12) through the housing bushing (2-114), so that the active lock housing (2-13) rotates around the axis; The side baffle (2-15) is installed on the side of the active lock housing (2-13) and is used to protect the internal structure of the active lock; The driving screw (2-14) is mounted on the active lock housing (2-13) via two bearings and a bearing end cover (2-113); The speed reducer (2-17) and the motor (2-18) are mounted on the active lock housing (2-13); The input bevel gear (2-110) is connected to the active lock housing (2-13) through a bearing, and is connected to the reducer (2-17) through the inner ring of the bearing; The active lock bracket A (2-11) and the active lock bracket B (2-12) are each provided with a semicircular groove, and the two are connected by fasteners to support the active lock housing (2-13) and the housing bushing (2-114); The output bevel gear (2-19) contacts the inner ring of the bearing via a top ring (2-112); the top ring (2-112) is used to limit axial movement of the output bevel gear (2-19); The output bevel gear (2-19) is mounted on the driving screw (2-14); The input bevel gear (2-110) rotates under the action of the motor (2-18), driving the output bevel gear (2-19) to rotate and further driving the driving screw (2-14) to rotate; The limit block (2-16) is installed at the bottom of the active lock bracket A (2-11) and is used to limit the rotation angle of the active lock housing (2-13).

5. The active-passive combined space door locking system according to claim 1, characterized in that: There are two limit blocks (2-16).

6. The active-passive combined space hatch locking system according to claim 1, characterized in that: The active lock (2-10) further comprises a key (2-111) for connecting the output bevel gear (2-19) and the drive screw (2-14).

7. The active-passive combined space hatch locking system according to claim 1, characterized in that: The passive lock (2-20) is arranged on the cabin door B (1-2), and further comprises a passive lock bracket A (2-21), a passive lock bracket B (2-22) and a nut sliding bushing (2-24); The passive lock bracket A (2-21) and the passive lock bracket B (2-22) each have a semicircular groove, and the two are fixed together by fasteners to support the guide nut (2-23) and the nut sliding bushing (2-24); The guide nut (2-23) has cylindrical shafts on both sides and is installed on the combination of the passive lock bracket A (2-21) and the passive lock bracket B (2-22) through the nut bushing (2-24), so that the guide nut (2-23) rotates around the axis; The passive lock bracket B (2-22) is used to limit the rotation of the guide nut (2-23); The end of the guide nut (2-23) has a guide structure, so that the active lock driving screw (2-14) moves with the cabin door A (1-1) and the cabin door B (1-2) to the retraction process, and cooperates with the screw hole of the guide nut (2-23).

8. The active-passive combined space hatch locking system according to claim 1, characterized in that: In the end face lock, the active end (3-10) is arranged at the vertices of the two end faces of the cabin door A (1-1) and the cabin door B (1-2), and moves together with the cabin door A (1-1) and the cabin door B (1-2).

9. The active-passive combined space hatch locking system according to claim 1, characterized in that: In the end face lock, the passive end (3-20) further comprises a gasket (3-23) and a bottom plate (3-24), which are arranged on the middle body (1-4) at both ends of the cabin door A (1-1) and the cabin door B (1-2); The gasket (3-23) is installed at the bottom of the cone head (3-22) to achieve a tight fit between the cone socket (3-12) and the cone head (3-22); The bottom plate (3-24) is installed on the outer surface of the passive end to play a supporting role.

Images