CN111894350A

CN111894350A - Helicopter sliding cabin door locking mechanism

Info

Publication number: CN111894350A
Application number: CN202010730518.6A
Authority: CN
Inventors: 牟永兵
Original assignee: Zhejiang Xingzhou Aviation Technology Co ltd
Current assignee: Zhejiang Xingzhou Aviation Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-11-06

Abstract

A helicopter sliding cabin door locking mechanism comprises a handle assembly, an upper lock box assembly, a lower lock box assembly, an upper lock seat assembly and a lower lock seat assembly, wherein the handle assembly, the upper lock box assembly and the lower lock seat assembly are arranged in a cabin door body, the upper lock box assembly is connected with the handle assembly through an upper steel wire rope assembly, the lower lock box assembly is connected with the handle assembly through a lower steel wire rope assembly, when the helicopter sliding cabin door locking mechanism is used, a lock core shaft is driven by an outer handle or an inner handle, the lock core shaft drives a star-shaped member, the star-shaped member drives a large adapter to rotate, the large adapter drives a small adapter to rotate, the small adapter drives a lock hook in the upper lock box assembly and the lower lock box assembly to be separated from a lock column through the upper steel wire rope assembly and the lower steel wire rope assembly, the locking mechanism is opened, a cabin door main body can be pushed, the cabin door body is pushed, the cabin door body of the helicopter sliding cabin is limited, and the cabin door body is prevented from sliding.

Description

Helicopter sliding cabin door locking mechanism

Technical Field

The invention relates to a locking mechanism for a cabin door of a helicopter sliding cabin, and belongs to the field of helicopter door locks.

Background

At present, most of naval ship-based helicopters in China are transportation helicopters, and with the development of national defense cause, the development of naval ship-based armed helicopters brings up a schedule. A cabin door locking mechanism of a sliding cabin of a helicopter is an important structure for opening and closing the cabin door, and the structural stability and reliability of the cabin door of the sliding cabin are important structures for guaranteeing the safe flight of the helicopter. However, the existing sliding cabin door locking mechanism is designed according to the maneuverability of a transport helicopter, and cannot meet the flight requirements of armed helicopters.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a helicopter sliding cabin door locking mechanism which has stable performance, reliable locking, precise structural design and low manufacturing cost and is suitable for high-strength flight requirements.

The technical scheme of the locking mechanism of the sliding cabin door of the helicopter is as follows: it is characterized by comprising a handle component, an upper lock box component and a lower lock box component which are arranged in a cabin door body, and an upper lock seat component and a lower lock seat component which are arranged in a cabin door frame, wherein the upper lock box component is connected with the handle component through an upper steel wire rope component, the lower lock box component is connected with the handle component through a lower steel wire rope component,

the handle assembly comprises a handle box body, the inner side and the outer side of the handle box body are respectively connected with an inner handle and an outer handle through a lock core shaft, a lock core is arranged in the outer handle, the lock core is connected with the lock core shaft through a movable sealing ring, a mounting plate is arranged outside the outer handle, a star-shaped piece is arranged on the lock core shaft, one side of the star-shaped piece is connected with a connecting rod through a flat-end shaft, a rotating pin is arranged in the connecting rod and is connected with a triangular plate, the middle part of the triangular plate is connected with a mandril through a supporting piece, a mandril spring is arranged on the mandril, a swing limiting frame is arranged at the inner side part of the handle box body, a door frame of the cabin door is provided with a limiting hook, the swing limiting frame is matched with the limiting hook, the lower side part of the handle box body is respectively provided with a large adapter and a small adapter in a rotating way, the, the large adapter is in contact fit with the star-shaped part, the small adapter is upwards connected with the upper steel wire rope assembly, and the small adapter is downwards connected with the lower steel wire rope assembly;

the upper lock box assembly and the lower lock box assembly respectively comprise a lock box main body, a stop core shaft and a lock hook core shaft are respectively and rotatably arranged in the lock box main body, a stop torsion spring and a stop block are arranged on the stop core shaft, a stop shifting tooth is arranged on the stop block, a lock hook torsion spring and a lock hook plate are arranged on the lock hook core shaft, a lock hook and a secondary lock tooth are arranged on the lock hook plate, the stop shifting tooth is meshed with the secondary lock tooth, and a rotary joint is arranged at the outer end head of the stop core shaft;

the upper lock seat assembly and the lower lock seat assembly respectively comprise a lock seat, a lock frame is fixed on the lock seat through a tooth surface, lock catches are arranged on the lock frame, lock columns are arranged between the lock catches, and when the cabin door is closed, the lock hooks clamp the lock columns;

the upper steel wire rope assembly and the lower steel wire rope assembly respectively comprise a steel wire rope, a sheath is arranged outside the steel wire rope, two ends of the sheath are respectively provided with a joint, one end of the steel wire rope is connected with an adjusting bolt and an adjusting nut, and the other end of the steel wire rope is connected with the swing arm through a spacer bush and is stopped by an end head.

The invention discloses a helicopter sliding cabin door locking mechanism, when an outer handle is used for opening a cabin door, a lock core is firstly opened by a key, then the outer handle is pulled down, a lock core shaft is screwed, the lock core shaft drives a star-shaped piece, the lower side of the star-shaped piece is contacted with a large adapter to drive the large adapter to rotate, the large adapter is meshed with a small adapter to drive the small adapter to rotate, the small adapter drives an upper steel wire rope component and a lower steel wire rope component, the upper steel wire rope component and the lower steel wire rope component are respectively connected to rotating joints in an upper lock box component and a lower lock box component, a stop core shaft is driven to rotate by the rotating joints, the stop core shaft drives a stop block, the stop block drives a lock hook plate to rotate through a secondary lock tooth, a lock hook on the lock hook plate is separated from a lock column in the upper lock box component or the lower lock box component, then the outer handle is held to push a cabin door body, the swing limiting frame is automatically clamped into a limiting hook on a door frame of the cabin door, so that the cabin door body of the helicopter sliding cabin is limited, and the cabin door body is prevented from sliding. When the inner handle is used for opening the cabin door, the inner handle is rotated, the inner handle drives the lock core shaft, and the unlocking action is the same as that of the outer handle. When the cabin door is shut down or takes off and is closed, the cabin door main body is pushed, the swing limiting frame is separated from the limiting hook under the action of the return spring, and when the cabin door main body is closed, the locking column is automatically clamped by the locking hook under the action of the stop torsion spring and the locking hook torsion spring, so that the cabin door is locked. When the machine is stopped and the cabin door is closed, the external handle can not be pulled if the key locks the lock core shaft. In addition, in actual products, the bushings are arranged outside the connected shafts and pins, so that the strength of the shafts and the pins is increased, the abrasion is reduced, and the service life is prolonged. The locking structural design of this scheme is accurate, and linkage performance is stable, reliable between each part, goes up wire rope subassembly and all overlaps with wire rope subassembly down and have the sheath, can effectively protect wire rope, goes up the lock seat subassembly and passes through the flank of tooth assembly with lock seat subassembly down, and is fixed firm, is fit for the requirement of high strength flight.

According to the helicopter sliding cabin door locking mechanism, the lock cylinder is provided with the lining and the idler wheel, and the idler wheel is matched with the lock hook more smoothly. The upper part and the lower part of the door frame of the cabin door are respectively provided with an alarm device, the alarm devices are normally open or normally closed micro switches, the micro switches are available in the prior art and are sold in the market, and the micro switches are connected with a main control console through a circuit and play a role in alarming when the cabin door is opened or closed. The lock box subassembly or lock box subassembly down on set up and look the mesh subassembly, look the mesh subassembly include a connecting plate, set up on the connecting plate and look mesh dustcoat and link, respectively connect the control lever and look the mesh piece about through the opening axle on the link, look and paste red and green double-colored mesh plastic piece on the mesh piece, the control lever passes through the latch hook dabber in the connection box subassembly or the lock box subassembly down of connection piece connection. When the cabin door is opened or closed, the vision plastic sheet with red and green colors can be seen to turn over through the vision outer cover, the red color is used for opening the cabin door, and the green color is used for closing the cabin door.

Drawings

FIG. 1 is a schematic view of the helicopter sliding door locking mechanism assembly of the present invention;

FIG. 2 is a top view of the handle assembly of the present invention;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 2;

FIG. 5 is a schematic view of the upper or lower lock box assembly of the present invention;

FIG. 6 is a schematic cross-sectional view C-C of FIG. 5;

FIG. 7 is a schematic view of the upper or lower housing assembly of the present invention;

FIG. 8 is a schematic structural view of an upper or lower wire rope assembly of the present invention;

fig. 9 is a schematic view of the visual element of the present invention.

Detailed Description

The invention relates to a helicopter sliding cabin door locking mechanism, which comprises a handle component 1, a top lock box component 2 and a bottom lock box component 3 which are arranged in a cabin door body 01, and a top lock base component 4 and a bottom lock base component 5 which are arranged in a cabin door frame 02, wherein the top lock box component 2 is connected with the handle component 1 through a top wire rope component 6, the bottom lock box component 3 is connected with the handle component 1 through a bottom wire rope component 7,

the handle component 1 comprises a handle box body 11, the inner side and the outer side of the handle box body are respectively connected with an inner handle 13 and an outer handle 14 through a lock core shaft 12, a lock core 15 is arranged in the outer handle, the lock core 15 is connected with the lock core shaft 12 through a movable sealing ring 16, a mounting plate 17 is arranged outside the outer handle, a star-shaped part 18 is arranged on the lock core shaft 12, one side of the star-shaped part is connected with a connecting rod 20 through a flat head shaft 19, a rotating pin 21 is arranged in the connecting rod, the rotating pin is connected with a triangular plate 22, the middle part of the triangular plate is connected with a mandril 24 through a supporting piece 23, a mandril spring 25 is arranged on the mandril, a swing limiting frame 26 is arranged at the inner side part of the handle box body 11, a limiting hook 27 is arranged on a door frame 02, the swing limiting frame 26 is matched with the limiting hook 27, a large adapter 30 and a small adapter 31 are respectively arranged on the lower, the large rotating teeth 32 are meshed with the small rotating teeth 33, the large adapter 30 is connected with a reset ejector rod 35, a reset spring 36 is arranged on the reset ejector rod, the large adapter 30 is in contact fit with the star-shaped part 18, the small adapter 31 is upwards connected with the upper steel wire rope assembly 6, and the small adapter 31 is downwards connected with the lower steel wire rope assembly 7;

the upper lock box assembly 2 and the lower lock box assembly 3 both comprise a lock box main body 40, a stop core shaft 41 and a lock hook core shaft 42 are respectively rotatably arranged in the lock box main body 40, a stop torsion spring 43 and a stop block 44 are arranged on the stop core shaft 41, a stop shifting tooth 49 is arranged on the stop block 44, a lock hook torsion spring 45 and a lock hook plate 46 are arranged on the lock hook core shaft 42, a lock hook 47 and a secondary lock tooth 50 are arranged on the lock hook plate, the stop shifting tooth 49 is meshed with the secondary lock tooth 50, and a rotary joint 48 is arranged at the outer end of the stop core shaft 41;

the upper lock seat assembly 4 and the lower lock seat assembly 5 both comprise a lock seat 51, a lock frame 53 is fixed on the lock seat through a tooth surface 52, lock catches 54 are arranged on the lock frame 53, lock posts 55 are arranged between the lock catches, and when the hatch door is closed, the lock hooks 47 are clamped on the lock posts 55;

the upper steel wire rope assembly 6 and the lower steel wire rope assembly 7 both comprise a steel wire rope 61, a sheath 62 is arranged outside the steel wire rope 61, two ends of the sheath are respectively provided with a joint 63, one end of the steel wire rope 61 is connected with an adjusting bolt 64 and an adjusting nut 65, and the other end of the steel wire rope 61 is connected with a swing arm 67 through a spacer 66 and is stopped by an end 68.

When the outer handle is used for opening the cabin door, firstly, a key is used for opening the lock cylinder 15, then the outer handle 14 is pulled down, the lock core shaft 12 is screwed, the lock core shaft 12 drives the star-shaped member 18, the lower side of the star-shaped member 18 is contacted with the large adapter 30 to drive the large adapter 30 to rotate, the large adapter 30 is meshed with the small adapter 31 to drive the small adapter 31 to rotate, the small adapter 31 drives the upper wire rope assembly 6 and the lower wire rope assembly 7, the upper wire rope assembly 6 and the lower wire rope assembly 7 are respectively connected to the rotating joints 48 in the upper lock box assembly 2 and the lower lock box assembly 3, the stop core shaft 41 is driven to rotate through the rotating joints 48, the stop core shaft 41 drives the stop block 44, the stop block 44 drives the lock hook plate 46 to rotate through the secondary lock teeth 50, so that the lock hook 47 on the lock hook plate is separated from the lock column 55 in the upper lock box assembly 4 or the lower lock box assembly 5, then the outer, under the action of the ejector rod spring 25, the swing limiting frame 26 is automatically clamped into the limiting hook 27 on the door frame 02 of the cabin door, so that the cabin door body of the helicopter sliding cabin is limited, and the cabin door body is prevented from sliding. When the inner handle 13 is used for opening the cabin door, the inner handle 13 is rotated, the inner handle 13 drives the lock core shaft 12, and the unlocking action is the same as that of the outer handle. When the cabin door is shut down or takes off and closed, the cabin door main body 01 is pushed, the swing limiting frame 26 is separated from the limiting hook 27 under the action of the return spring 36, and when the cabin door main body is closed, the lock hook 47 automatically locks the lock column 55 under the action of the stop torsion spring 43 and the lock hook torsion spring 45, so that the cabin door is locked. When the machine is stopped and the cabin door is closed, the external handle can not be pulled if the key locks the lock core shaft. In addition, in actual products, the bushings are arranged outside the connected shafts and pins, so that the strength of the shafts and the pins is increased, the abrasion is reduced, and the service life is prolonged. The locking structural design of this scheme is accurate, and linkage performance is stable, reliable between each part, goes up wire rope subassembly and all overlaps with wire rope subassembly down and have the sheath, can effectively protect wire rope, goes up the lock seat subassembly and passes through the flank of tooth assembly with lock seat subassembly down, and is fixed firm, is fit for the requirement of high strength flight.

The lock column 55 is provided with a lining 56 and a roller 57, and the roller 57 is matched with the lock hook 47 more smoothly. The upper part and the lower part of the door frame 02 of the cabin door are respectively provided with an alarm device, the alarm devices are normally open or normally closed micro switches 03, the micro switches are available in the prior art and are sold in the market, and the micro switches are connected with a main control console through a circuit and play a role in alarming when the cabin door is opened or closed. The lock box assembly 2 or the lower lock box assembly 3 are provided with a visual mesh assembly 07, the visual mesh assembly comprises a connecting plate 71, a visual mesh outer cover 72 and a connecting frame 73 are arranged on the connecting plate, the connecting frame is respectively connected with an operating lever 75 and a visual mesh block 76 up and down through an opening shaft 74, a red-green two-color visual mesh plastic sheet 77 is pasted on the visual mesh block, and the operating lever 75 is connected with a lock hook core shaft 42 in the lock box assembly 2 or the lower lock box assembly 3 through a connecting sheet 78. When the cabin door is opened or closed, the vision plastic sheet with red and green colors can be seen to turn over through the vision outer cover, the red color is used for opening the cabin door, and the green color is used for closing the cabin door.

Claims

1. A helicopter sliding cabin door locking mechanism is characterized by comprising a handle component (1), a locking box component (2) and a lower locking box component (3) which are arranged in a cabin door body (01), and a upper locking seat component (4) and a lower locking seat component (5) which are arranged in a cabin door frame (02), wherein the locking box component (2) is connected with the handle component (1) through an upper steel wire rope component (6), the lower locking box component (3) is connected with the handle component (1) through a lower steel wire rope component (7),

the handle assembly (1) comprises a handle box body (11), an inner handle (13) and an outer handle (14) are respectively connected to the inner side and the outer side of the handle box body through a lock core shaft (12), a lock core (15) is arranged in the outer handle, the lock core (15) is connected with the lock core shaft (12) through a movable sealing ring (16), a mounting plate (17) is arranged outside the outer handle, a star-shaped part (18) is mounted on the lock core shaft (12), one side of the star-shaped part is connected with a connecting rod (20) through a flat head shaft (19), a rotating pin (21) is arranged in the connecting rod and is connected with a triangular plate (22), the middle of the triangular plate is connected with a mandril (24) through a supporting part (23), a mandril spring (25) is arranged on the mandril, a swing limiting frame (26) is arranged at the inner side part of the handle box body (11), a limiting hook (27) is arranged on, the handle comprises a handle box body (11), and is characterized in that a large adapter (30) and a small adapter (31) are respectively arranged on the lower side of the handle box body (11) in a rotating mode, a large rotating tooth (32) is arranged on the large adapter, a small rotating tooth (33) is arranged on the small adapter, the large rotating tooth (32) is meshed with the small rotating tooth (33), a reset ejector rod (35) is connected to the large adapter (30), a reset spring (36) is arranged on the reset ejector rod, the large adapter (30) is in contact fit with a star-shaped piece (18), the small adapter (31) is upwards connected with an upper steel wire rope assembly (6), and the small adapter (31) is downwards;

the upper lock box assembly (2) and the lower lock box assembly (3) respectively comprise a lock box main body (40), a stop core shaft (41) and a lock hook core shaft (42) are respectively arranged in the lock box main body (40) in a rotating mode, a stop torsion spring (43) and a stop block (44) are arranged on the stop core shaft (41), stop shifting teeth (49) are arranged on the stop block (44), a lock hook torsion spring (45) and a lock hook plate (46) are arranged on the lock hook core shaft (42), a lock hook (47) and a secondary lock tooth (50) are arranged on the lock hook plate, the stop shifting teeth (49) are meshed with the secondary lock tooth (50), and a rotating joint (48) is arranged at the outer end head of the stop core shaft (41);

the upper lock seat assembly (4) and the lower lock seat assembly (5) respectively comprise a lock seat (51), a lock frame (53) is fixed on the lock seat through a tooth surface (52), lock catches (54) are arranged on the lock frame (53), lock posts (55) are arranged between the lock catches, and when the cabin door is locked and closed, the lock hooks (47) lock the lock posts (55);

go up wire rope subassembly (6) and wire rope subassembly (7) down and all include a wire rope (61), wire rope (61) are equipped with sheath (62) outward, the both ends of sheath respectively set up joint (63), adjusting bolt (64) and adjusting nut (65) are connected to one end of wire rope (61), the other end of wire rope (61) is through spacer (66) connection swing arm (67) to end position by end (68).

2. A helicopter sliding door latching mechanism according to claim 1, wherein said lock cylinder (55) is provided with a bushing (56) and a roller (57), said roller (57) cooperating with said latch hook (47).

3. A helicopter sliding door locking mechanism according to claim 1, characterized in that the upper and lower parts of said door frame (02) are each provided with an alarm device, said alarm device being a normally open or normally closed microswitch (03).

4. A helicopter sliding hatch door locking mechanism according to claim 1, characterized in that the upper lock box assembly (2) or the lower lock box assembly (3) is provided with a vision assembly (07), the vision assembly comprises a connecting plate (71), a vision cover (72) and a connecting frame (73) are arranged on the connecting plate, the connecting frame is respectively connected with an operating lever (75) and a vision block (76) up and down through an opening shaft (74), a vision plastic sheet (77) with red and green double colors is pasted on the vision block, and the operating lever (75) is connected with the locking latch mandrel (42) in the upper lock box assembly (2) or the lower lock box assembly (3) through a connecting plate (78).