Gangway door lock and gangway door locking device

Abstract

The present application relates to a kind of gangway door lock and gangway door locking device, belong to gangway door technical field, and gangway door locking device includes gangway door lock, inside unlocking component and outside unlocking component, wherein, gangway door lock includes lock seat component, lock box component and prompt component, lock seat component includes lock seat and lock pin fixedly arranged on lock seat, lock box component includes lock box and lock hook rotationally arranged in lock box, lock hook has long lock tongue and short lock tongue, and lock groove is formed between long lock tongue and short lock tongue, prompt component includes microswitch, single-head swing arm piece and elastic piece, single-head swing arm piece is rotationally arranged on the lock seat, and can be rotated between first trigger position and second trigger position.The present application is accurately and intuitively understood to the locking and unlocking state of gangway door by setting prompt component by crew, to eliminate the security risk in flight, guarantee the security of use.

Description

Technical Field

[0001] This invention relates to a gangway door lock and a gangway door locking device, belonging to the field of gangway door technology. Background Technology

[0002] Currently, aircraft commonly use gangways to allow passengers to board and disembark. When in use, the gangway is opened and lowered to rest against the ground; when not in use, it is closed and retracted into the cabin. During the lowering and retraction of the gangway, a gangway lock is required to unlock or lock it.

[0003] Existing boarding stairs door locks typically rely on visual inspection of the door's open / closed status to determine its lock / unlock position. This method makes it difficult for the crew to accurately and intuitively understand the door's lock / unlock status. When the boarding stairs door mis-locks, fails to lock, or is not properly engaged, the crew cannot accurately and intuitively understand the door's current status, creating safety hazards during flight and reducing the overall safety of the boarding stairs door locks.

[0004] Therefore, in order to enable the crew to accurately and intuitively understand the locking and unlocking status of the gangway door, a new gangway door locking device with an optimized structure is needed. Summary of the Invention

[0005] The purpose of this invention is to provide a gangway door lock and gangway door locking device that allows crew members to accurately and intuitively understand the locked and unlocked status of the gangway door.

[0006] This invention provides a gangway door lock, disposed within a gangway door locking device, for locking or unlocking the gangway door, and features the following characteristics:

[0007] A lock seat assembly is provided on the door frame of the gangway door, including a lock seat and a locking pin fixedly provided on the lock seat;

[0008] A lock box assembly, mounted on the gangway door, includes a lock box and a lock hook rotatably disposed within the lock box. The lock hook has a long latch and a short latch, with a lock groove formed between the long latch and the short latch; and

[0009] An indicator component, located on the lock seat assembly, is used to indicate whether the gangway door lock is in a locked or unlocked state, thus indicating that the gangway door is locked or unlocked.

[0010] The prompt components include:

[0011] A micro switch is mounted on the lock base;

[0012] The single-headed swing arm is rotatably mounted on the lock seat and can rotate between the first trigger position and the second trigger position.

[0013] When the single-headed swing arm is in the first triggered position, it presses the contact of the micro switch to close it; when it is in the second triggered position, it disengages from the contact of the micro switch to open it.

[0014] An elastic element, mounted on the lock seat, is used to give the single-headed swing arm a tendency to rotate toward the first trigger position.

[0015] During the closing process of the gangway door, the locking pin and the long locking tongue collide and engage to make the locking hook rotate in the locking direction. During this process, the locking pin gradually engages with the locking groove. At the same time, the long locking tongue engages with the swing end of the single-headed swing arm and drives the single-headed swing arm to rotate gradually from the first trigger position to the second trigger position.

[0016] As the gangway door gradually opens from the closed state, the locking hook rotates in the unlocking direction under the action of external force. During this process, the locking pin gradually disengages from the locking groove, and at the same time, the long locking tongue disengages from the swing end of the single-headed swing arm. Under the action of the elastic element, the single-headed swing arm gradually rotates from the second trigger position to the first trigger position.

[0017] The gangway door lock provided by this invention may also have the following features:

[0018] The single-headed swing arm is a rod-shaped component. One end of the rod forms a rotational support with the lock seat, while the other end serves as the swing end of the single-headed swing arm and is equipped with a drive engagement part, which is used to engage with the long lock tongue.

[0019] The first sidewall of the single-headed swing arm is provided with a trigger part in the swing direction, which is used to press the contact of the micro switch. The trigger part corresponds to the contact of the micro switch.

[0020] The gangway door lock provided by this invention may also have the following features:

[0021] The long locking tongue is equipped with a driving part, which is located at the extension end of the long locking tongue and is used to drive and engage with the driving mating part.

[0022] When the locking hook rotates in the locking direction, the driving part and the driving mating part abut against each other, thereby driving the single-headed swing arm to rotate from the first trigger position to the second trigger position.

[0023] The gangway door lock provided by this invention may also have the following features:

[0024] The drive assembly includes a planar segment and an arc segment, with the drive component being planar.

[0025] The trigger part is a slope, and the end of the slope that is relatively close to the swing end of the single-head swing arm is inclined toward the side away from the micro switch contact.

[0026] The gangway door lock provided by this invention may also have the following features:

[0027] Specifically, the longer bolt extending towards the pin is greater than the shorter bolt extending towards the pin.

[0028] The drive unit is located on the side wall of the long latch facing away from the short latch, and it is connected to the extension end of the long latch.

[0029] During the closing process of the gangway door, the locking pin engages with the side wall of the long latch facing the short latch, causing the locking hook to rotate in the locking direction.

[0030] The gangway door lock provided by this invention may also have the following features:

[0031] The elastic element is a torsion spring, one end of which abuts against the lock seat, and the other end abuts against the second side wall in the swing direction of the single-headed swing arm.

[0032] The second sidewall in the swing direction of the single-headed swing arm is positioned opposite to its first sidewall in the swing direction.

[0033] In the unlocked state, the single-headed swing arm remains in the first trigger position under the action of the elastic element.

[0034] The gangway door lock provided by this invention may also have the following features:

[0035] The lock base has a mounting portion extending toward the side where the lock hook is located, and the lock pin is fixed to the extended end of the mounting portion.

[0036] The drive mating part extends radially outward from the locking pin, and there is a height difference between the drive mating part and the locking pin.

[0037] A gap is formed between the drive engagement part and the locking pin to allow the long locking tongue to extend into, so that the drive part and the drive engagement part drive engagement.

[0038] The gangway door lock provided by this invention may also have the following features:

[0039] The indicator component also includes a blocking element, which is fixedly mounted on the lock base.

[0040] When the single-headed swing arm is in the first trigger position, the blocking member abuts against the first sidewall in the swing direction of the single-headed swing arm.

[0041] The gangway door lock provided by this invention may also have the following features:

[0042] The lock box assembly also includes:

[0043] The first reset element, located inside the lock housing, is used to give the lock hook a tendency to rotate in the unlocking direction;

[0044] A stop, rotatably mounted within the lock housing, is used to block the lock hook from rotating in the unlocking direction; and

[0045] The second reset element, located inside the lock box, is used to give the stop element a tendency to rotate toward the side where the lock hook is located, thereby causing the stop element to block the lock hook.

[0046] This invention provides a gangway door locking device, characterized by the following features:

[0047] Locks for gangway doors are installed on the gangway doors and their frames.

[0048] An internal unlocking component, located on the surface of the gangway door facing inwards from the cabin, is used to unlock the gangway door lock from inside the cabin; and

[0049] An external unlocking assembly, located on the surface of the gangway door facing outwards from the cabin, is used to unlock the gangway door lock from outside the cabin.

[0050] The gangway door lock is the same as described above.

[0051] Therefore, the present invention has the following advantages compared with the prior art:

[0052] According to the gangway door lock and gangway door locking device of the present invention, the gangway door locking device includes a gangway door lock, an inner unlocking component, and an outer unlocking component. The gangway door lock includes a lock seat assembly, a lock box assembly, and a warning component. The lock seat assembly includes a lock seat and a locking pin fixedly mounted on the lock seat. The lock box assembly includes a lock box and a locking hook rotatably mounted within the lock box. The locking hook has a long locking tongue and a short locking tongue, with a locking groove formed between the long and short locking tongues. The warning component includes a micro switch, a single-headed swing arm, and an elastic element. During the closing process of the gangway door, the locking hook moves synchronously with the gangway door. The long latch on the central locking hook engages with the locking pin on the door frame, causing the locking hook to rotate in the locking direction. During the rotation, the locking pin gradually engages with the locking groove. At the same time, the long latch engages with the swing end of the single-headed swing arm, driving the single-headed swing arm to rotate gradually from the first trigger position to the second trigger position. When the gangway door is fully closed, the locking pin and the locking groove are fully engaged, thus locking the gangway door lock. At the same time, the single-headed swing arm rotates to the second trigger position, changing the state of the micro switch. This triggers the micro switch to send a signal indicating that the gangway door lock is in the locked state, thus indicating that the gangway door has been locked.

[0053] As the gangway door gradually opens from its closed state, the locking hook rotates in the unlocking direction under external force. During this rotation, the locking pin gradually disengages from the locking groove, and simultaneously, the long locking tongue disengages from the swing end of the single-headed swing arm. Under the action of the elastic element, the single-headed swing arm gradually rotates from the second trigger position to the first trigger position. When the gangway door opens to a certain angle, the locking pin completely disengages from the locking groove. At the same time, the single-headed swing arm rotates to the first trigger position, changing the state of the micro switch. This triggers the micro switch to send a signal indicating that the gangway door lock is in the unlocked state, thus indicating that the gangway door has been unlocked. This allows the crew to accurately and intuitively understand the locking and unlocking status of the gangway door, thereby eliminating potential safety hazards during flight and ensuring safe operation. Attached Figure Description

[0054] Figure 1 This is a three-dimensional structural schematic diagram of the gangway door locking device in an embodiment of the present invention;

[0055] Figure 2 This is a three-dimensional structural diagram of the gangway door lock in an embodiment of the present invention;

[0056] Figure 3 This is a schematic diagram of the structure of the single-headed swing arm component in its first trigger position in an embodiment of the present invention;

[0057] Figure 4 This is a schematic diagram of the structure of the single-headed swing arm component in its second trigger position in an embodiment of the present invention;

[0058] Figure 5 This is a three-dimensional structural diagram of the lock seat assembly in an embodiment of the present invention;

[0059] Figure 6 This is a three-dimensional structural diagram of the lock box assembly in an embodiment of the present invention;

[0060] Figure 7 This is a three-dimensional structural diagram of the single-head swing arm component in an embodiment of the present invention;

[0061] Figure 8 This is a cross-sectional view of the lock seat assembly in an embodiment of the present invention;

[0062] Figure 9 This is a partial structural schematic diagram of the lock box assembly in an embodiment of the present invention;

[0063] Figure 10 This is a cross-sectional view of the lock box assembly in an embodiment of the present invention;

[0064] Figure 11 This is a schematic diagram of the main view structure of the internal unlocking component in an embodiment of the present invention;

[0065] Figure 12This is a schematic diagram of the main structure of the external unlocking component in an embodiment of the present invention.

[0066] The markings in the attached diagram are described below:

[0067] gangway door locking device 100a; gangway door lock 10;

[0068] Lock seat assembly 11; Lock seat 111; Mounting part 111a; Locking pin 112; Support shaft 113;

[0069] Lock box assembly 12; lock box 121; lock hook 122; long lock tongue 122a; drive part 221a; short lock tongue 122b; lock groove 122c; second engagement part 122d; second tooth part 221d; first reset member 123; stop member 124; first engagement part 124a; first tooth part 241a; second reset member 125;

[0070] Prompt component 13; micro switch 131; single-head swing arm 132; drive mating part 132a; trigger part 132b; elastic element 133; blocking element 134;

[0071] Internal unlocking component 20; external unlocking component 30; first pull rope 40; second pull rope 50. Detailed Implementation

[0072] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes the gangway door lock and gangway door locking device of the present invention in detail with reference to the embodiments and accompanying drawings.

[0073] This embodiment provides a gangway door lock and gangway door locking device that allows crew members to accurately and intuitively understand the locked and unlocked status of the gangway door.

[0074] Figure 1 This is a three-dimensional structural diagram of the gangway door locking device in an embodiment of the present invention.

[0075] like Figure 1 As shown, the gangway door locking device 100a of this embodiment includes a gangway door lock 10, an inner unlocking component 20, and an outer unlocking component 30. The gangway door lock 10 is disposed on the gangway door and its door frame. The inner unlocking component 20 is disposed on the surface of the gangway door facing the cabin interior and is used to unlock the gangway door lock 10 from inside the cabin. The outer unlocking component 30 is disposed on the surface of the gangway door facing the cabin exterior and is used to unlock the gangway door lock 10 from outside the cabin.

[0076] It should be noted that the bottom of the gangway door is hinged to the door frame, and the gangway door lock 10 is located at the top of the gangway door and the corresponding part of the door frame. When in use, the gangway door rotates around the hinge point between itself and the door frame to open or close.

[0077] In this embodiment, there are two gangway door locks 10. The two gangway door locks 10 are arranged on the gangway door at intervals, thereby forming two locking points between the gangway door and the door frame to ensure the stability of the locking.

[0078] Figure 2 This is a three-dimensional structural diagram of the gangway door lock in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the single-headed swing arm component in its first trigger position in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the single-headed swing arm in its second trigger position in an embodiment of the present invention.

[0079] like Figures 2 to 4 As shown, the gangway door lock 10 includes a lock seat assembly 11, a lock box assembly 12, and a notification assembly 13. The lock seat assembly 11 is mounted on the door frame of the gangway door and includes a lock seat 111 and a locking pin 112 fixedly mounted on the lock seat 111. The lock box assembly 12 is mounted on the gangway door and includes a lock box 121 and a locking hook 122 rotatably mounted within the lock box 121. The locking hook 122 has a long locking tongue 122a and a short locking tongue 122b, with a locking groove 122c formed between the long locking tongue 122a and the short locking tongue 122b. The notification assembly 13 is mounted on the lock seat assembly 11 and is used to indicate whether the gangway door lock 10 is in a locked or unlocked state, thus indicating that the gangway door has been locked or unlocked. It includes a micro switch 131, a single-headed swing arm 132, and an elastic element 133. The micro switch 131 is mounted on the lock seat 111. A single-headed swing arm 132 is rotatably mounted on the lock seat 111 and can rotate between a first trigger position and a second trigger position. When the single-headed swing arm 132 is in the first trigger position, it presses the contact of the micro switch 131 to close it; when in the second trigger position, it disengages from the contact of the micro switch 131 to open it. An elastic element 133 is mounted on the lock seat 111 to give the single-headed swing arm 132 a tendency to rotate towards the first trigger position. Figure 3 The direction indicated by D1 is the locking direction. Figure 4 The direction indicated by D2 is the unlocking direction.

[0080] Understandably, during the closing process of the gangway door, the locking hook 122 moves synchronously with the gangway door. During the movement, the long locking tongue 122a on the locking hook 122 impacts and engages with the locking pin 112 on the door frame, causing the locking hook 122 to rotate in the locking direction. During the rotation, the locking pin 112 gradually engages with the locking groove 122c. At the same time, the long locking tongue 122a engages with the swing end of the single-headed swing arm 132, driving the single-headed swing arm 132 to gradually rotate from the first trigger position to the second trigger position. When the gangway door is completely closed, the locking pin 112 and the locking groove 122c are fully engaged, realizing the locking of the gangway door lock 10. At the same time, the single-headed swing arm 132 rotates to the second trigger position, changing the state of the micro switch 131, thereby triggering the micro switch 131 to send a signal indicating that the gangway door lock 10 is in the locked state, thus indicating that the gangway door has been locked.

[0081] As the gangway door gradually opens from the closed state, the locking hook 122 rotates in the unlocking direction under the action of external force. During the rotation, the locking pin 112 gradually disengages from the locking groove 122c, and at the same time, the long locking tongue 122a disengages from the swing end of the single-headed swing arm 132. Under the action of the elastic element 133, the single-headed swing arm 132 gradually rotates from the second trigger position to the first trigger position. When the gangway door is opened to a certain angle, the locking pin 112 completely disengages from the locking groove 122c. At the same time, the single-headed swing arm 132 rotates to the first trigger position, which changes the state of the micro switch 131, thereby triggering the micro switch 131 to send a signal indicating that the gangway door lock 10 is in the unlocked state, thus indicating that the gangway door has been unlocked. This allows the crew to accurately and intuitively understand the locking and unlocking status of the gangway door, thereby eliminating safety hazards during flight and ensuring the safety of use.

[0082] Figure 5 This is a three-dimensional structural diagram of the lock seat assembly in an embodiment of the present invention.

[0083] like Figure 5 As shown, the single-headed swing arm 132 is a rod, one end of which forms a rotational support with the lock seat 111, and the other end serves as the swing end of the single-headed swing arm 132 and is provided with a drive engagement part 132a, which is used to drive and engage with the long lock tongue 122a. The first sidewall of the single-headed swing arm 132 in the swing direction is provided with a trigger part 132b, which is used to press the contact of the micro switch 131. The trigger part 132b corresponds to the contact of the micro switch 131.

[0084] Understandably, when the locking hook 122 rotates in the locking direction, the long locking tongue 122a on the locking hook 122 engages with the driving engagement part 132a at the swing end of the single-headed swing arm 132, thereby driving the single-headed swing arm 132 to rotate from the first trigger position to the second trigger position, so that the trigger part 132b on the single-headed swing arm 132 disengages from the contact of the micro switch 131 and puts it in the open state, thereby changing the state of the micro switch 131.

[0085] In this embodiment, the single-headed swing arm 132 is mounted on the lock seat 111 via a support shaft 113. The support shaft 113 is fixed on the lock seat 111, and one end of the single-headed swing arm 132 is rotatably sleeved on the support shaft 113.

[0086] Figure 6 This is a three-dimensional structural diagram of the lock box assembly in an embodiment of the present invention.

[0087] like Figure 6 As shown, a driving part 221a is provided on the long locking tongue 122a, which is located at the extension end of the long locking tongue 122a and is used to drive and cooperate with the driving engagement part 132a.

[0088] Understandably, when the locking hook 122 rotates in the locking direction, the driving part 221a abuts against the driving engagement part 132a, thereby driving the single-headed swing arm 132 to rotate from the first trigger position to the second trigger position.

[0089] Figure 7 This is a three-dimensional structural diagram of the single-head swing arm component in an embodiment of the present invention.

[0090] like Figure 7 As shown, the drive engagement part 132a includes a planar segment and an arc segment, and the drive part 221a is planar. The trigger part 132b is an inclined surface, and the end of the inclined surface that is relatively close to the swing end of the single-head swing arm 132 is inclined toward the side away from the contact of the micro switch 131.

[0091] Understandably, when the locking hook 122 rotates in the locking direction, the driving part 221a first abuts against the arc section of the driving engagement part 132a, and then, as the locking hook 122 continues to rotate, the driving part 221a gradually abuts against the planar section of the driving engagement part 132a, thereby pushing the single-headed swing arm 132 to rotate to the second trigger position. When the driving part 221a is completely abutted against the planar section of the driving engagement part 132a, the single-headed swing arm 132 rotates to the second trigger position.

[0092] like Figure 6As shown, the length of the long latch 122a extending toward the side where the locking pin 112 is located is greater than the length of the short latch 122b extending toward the side where the locking pin 112 is located. The drive unit 221a is provided on the side wall of the long latch 122a facing away from the short latch 122b, and it is connected to the extended end of the long latch 122a.

[0093] Understandably, during the closing process of the gangway door, the locking pin 112 engages with the side wall of the long locking tongue 122a facing the short locking tongue 122b, causing the locking hook 122 to rotate in the locking direction. This allows the locking hook 122 to drive the single-headed swing arm 132 to rotate to the second trigger position via the drive unit 221a during rotation.

[0094] like Figure 5 As shown, the elastic element 133 is a torsion spring, one end of which abuts against the lock seat 111, and the other end abuts against the second sidewall of the single-headed swing arm 132 in the swing direction. The second sidewall of the single-headed swing arm 132 in the swing direction is arranged opposite to the first sidewall in the swing direction. In the unlocked state, the single-headed swing arm 132 is held in the first trigger position by the action of the elastic element 133.

[0095] Understandably, when the driving part 221a engages with the driving engagement part 132a, the single-headed swing arm 132 rotates from the first trigger position to the second trigger position, during which the elastic element 133 gradually accumulates force; when the driving part 221a disengages from the driving engagement part 132a, the single-headed swing arm 132 rotates from the second trigger position to the first trigger position under the reset action of the elastic element 133.

[0096] In this embodiment, the elastic element 133 is sleeved on the support shaft 113. In other alternative embodiments, the elastic element 133 may also be a compression spring. Specifically, one end of the compression spring abuts against the second sidewall in the swing direction of the single-headed swing arm 132, and the other end abuts against the inner wall of the lock seat 111.

[0097] Figure 8 This is a cross-sectional view of the lock seat assembly in an embodiment of the present invention.

[0098] like Figure 8 As shown, the lock base 111 has a mounting portion 111a extending toward the side where the lock hook 122 is located, and the lock pin 112 is fixed to the extended end of the mounting portion 111a. A drive engagement portion 132a extends radially outward of the lock pin 112, and there is a height difference between the drive engagement portion 132a and the lock pin 112. A gap is formed between the drive engagement portion 132a and the lock pin 112 for the long lock tongue 122a to extend into, so that the drive portion 221a and the drive engagement portion 132a are driven into engagement.

[0099] Understandably, during the closing of the gangway door, the long latch 122a on the hook 122 can extend into the gap and engage with the locking pin 112, causing the hook 122 to rotate in the locking direction. During the rotation of the hook 122, the drive part 221a can engage with the drive engagement part 132a.

[0100] In this embodiment, the position of the drive engagement part 132a is higher than the position of the locking pin 112, so that when the locking hook 122 moves with the gangway door, the long locking tongue 112a can accurately extend into the above-mentioned gap and engage with the locking pin 112, and can prevent the long locking tongue 122a from colliding with the drive engagement part 132a due to interference.

[0101] like Figure 3 As shown, the prompting component 13 also includes a blocking member 134, which is fixedly mounted on the lock seat 111. When the single-headed swing arm 132 is in the first trigger position, the blocking member 134 abuts against the first sidewall in the swing direction of the single-headed swing arm 132.

[0102] Understandably, the blocking effect of the blocking member 134 can keep the single-headed swing arm 132 in the first trigger position, thereby achieving the limiting and fixing of the single-headed swing arm 132 and reducing the external force applied by the single-headed swing arm 132 to the micro switch 131, thereby improving the service life of the micro switch 131.

[0103] Figure 9 This is a partial structural schematic diagram of the lock box assembly in an embodiment of the present invention.

[0104] like Figure 9 As shown, the lock box assembly 12 also includes a first reset member 123, a stop member 124, and a second reset member 125. The first reset member 123 is disposed within the lock box 121 and is used to give the lock hook 122 a tendency to rotate in the unlocking direction. The stop member 124 is rotatably disposed within the lock box 121 and is used to block the lock hook 122 in the direction of rotation in the unlocking direction. The second reset member 125 is disposed within the lock box 121 and is used to give the stop member 124 a tendency to rotate toward the side where the lock hook 122 is located, thereby blocking the lock hook 122.

[0105] Understandably, the stop 124 can resist the force of the first reset member 123, keeping the hook 122 engaged with the lock groove 122c, thus keeping the gangway door lock 10 in a locked state. In addition, after the stop 124 rotates away from the hook 122 under the action of external force to remove the obstruction, the hook 122 can rotate in the unlocking direction under the action of the first reset member 123, thereby disengaging from the lock groove 122c. After the external force on the stop 124 is removed, the hook 122 can rotate to the position that forms an obstruction to the hook 122 under the action of the second reset member 125.

[0106] In this embodiment, both the first reset member 123 and the second reset member 125 are torsion springs, and the lock hook 122 and the stop member 124 are both installed inside the lock box 121 via fixed shafts. Specifically, the first reset member 123 and the second reset member 125 are respectively sleeved on their corresponding fixed shafts. One end of the first reset member 123 abuts against the side wall of the lock box 121, and the other end abuts against the lock hook 122. One end of the second reset member 125 abuts against the side wall of the lock box 121, and the other end abuts against the stop member 124.

[0107] like Figure 9 As shown, the circumferential surface of the stop 124 has a first engaging portion 124a, and the circumferential surface of the locking hook 122 has a second engaging portion 122d. The first engaging portion 124a selectively engages with different positions of the second engaging portion 122d, and after engagement, they form a blockage in the direction in which the locking hook 122 rotates along the unlocking direction. The first engaging portion 124a includes a first tooth 241a, and the second engaging portion 122d includes three consecutive second teeth 221d.

[0108] Understandably, when the first tooth 241a engages with the second tooth 221d at one end, the stop 124 blocks the hook 122 in the locked position, and the locking pin 112 engages with the locking groove 122c. When the first tooth 241a engages with the second tooth 221d at the other end, the stop 124 blocks the hook 122 in the unlocked position, and the locking pin 112 disengages from the locking groove 122c. This allows the stop 124 to block the hook 122 in the direction in which the hook 122 rotates in the unlocking direction. When the first tooth 241a engages with the second tooth 221d in the middle, the stop 124 blocks the hook 122 in the transition position, and the locking pin 112 partially engages with the locking groove 122c. This allows the hook 122 to disengage from the locked position to the transition position when it disengages, instead of directly disengaging to the unlocked position, thus providing a safety function.

[0109] Figure 10 This is a cross-sectional view of the lock box assembly in an embodiment of the present invention; Figure 11 This is a schematic diagram of the main structure of the internal unlocking component in an embodiment of the present invention.

[0110] like Figure 1 , Figure 10 as well as Figure 11 As shown, the two gangway door locks 10 are respectively connected to the inner unlocking assembly 20 via a first pull rope 40. Specifically, one end of the first pull rope 40 is fixedly connected to the rotating end of the stop member 124, and the other end is fixedly connected to a swing end of the inner swing arm of the inner unlocking assembly 20.

[0111] Understandably, when the inner unlocking component 20 is working, it can drive the swing arm inside the inner unlocking component 20 to rotate. During the rotation of the swing arm, it can pull the stop 124 inside the two gangway door locks 10 to rotate toward the side away from the lock hook 122 through the first pull rope 40, thereby removing the stop 124 from blocking the lock hook 122 in the unlocking direction. As a result, the lock hook 122 can rotate in the unlocking direction under the action of the first reset component 123, thereby unlocking the gangway door lock 10.

[0112] Figure 12 This is a schematic diagram of the main structure of the external unlocking component in an embodiment of the present invention.

[0113] like Figure 1 and Figure 12 As shown, the inner unlocking component 20 is connected to the outer unlocking component 30 via a second pull rope 50. Specifically, one end of the second pull rope 50 is fixedly connected to a swing end of the inner swing arm of the inner unlocking component 20, and the other end is fixedly connected to a swing end of the inner swing arm of the outer unlocking component 30.

[0114] Understandably, when the external unlocking component 30 is in operation, it can pull the swing arm in the internal unlocking component 20 to rotate via the second pull rope 50, thereby pulling the stop 124 in the two gangway door locks 10 to rotate toward the side away from the lock hook 122 via the first pull rope 40, thereby unlocking the gangway door lock 10.

[0115] In this embodiment, the structure of the inner unlocking component 20 and the outer unlocking component 30 is consistent with the structure of the "inner locking disc component and outer locking disc component" disclosed in Chinese Invention Patent CN202111268319.9, so it will not be described in detail here.

[0116] The role and effect of the embodiments

[0117] According to the gangway door lock and gangway door locking device involved in this embodiment, the gangway door locking device includes a gangway door lock, an inner unlocking component, and an outer unlocking component. The gangway door lock includes a lock seat assembly, a lock box assembly, and a warning component. The lock seat assembly includes a lock seat and a locking pin fixedly mounted on the lock seat. The lock box assembly includes a lock box and a locking hook rotatably mounted within the lock box. The locking hook has a long locking tongue and a short locking tongue, with a locking groove formed between the long and short locking tongues. The warning component includes a micro switch, a single-headed swing arm, and an elastic element. During the closing process of the gangway door, the locking hook moves synchronously with the gangway door. During the process, the long latch on the hook strikes and engages with the locking pin on the door frame, causing the hook to rotate in the locking direction. During the rotation, the locking pin gradually engages with the locking groove. At the same time, the long latch engages with the swing end of the single-headed swing arm, driving the single-headed swing arm to rotate gradually from the first trigger position to the second trigger position. When the gangway door is completely closed, the locking pin and the locking groove are fully engaged, thus locking the gangway door lock. At the same time, the single-headed swing arm rotates to the second trigger position, changing the state of the micro switch, thereby triggering the micro switch to send a signal indicating that the gangway door lock is in the locked state, thus indicating that the gangway door has been locked.

[0118] As the gangway door gradually opens from its closed state, the locking hook rotates in the unlocking direction under external force. During this rotation, the locking pin gradually disengages from the locking groove, and simultaneously, the long locking tongue disengages from the swing end of the single-headed swing arm. Under the action of the elastic element, the single-headed swing arm gradually rotates from the second trigger position to the first trigger position. When the gangway door opens to a certain angle, the locking pin completely disengages from the locking groove. At the same time, the single-headed swing arm rotates to the first trigger position, changing the state of the micro switch. This triggers the micro switch to send a signal indicating that the gangway door lock is in the unlocked state, thus indicating that the gangway door has been unlocked. This allows the crew to accurately and intuitively understand the locking and unlocking status of the gangway door, thereby eliminating potential safety hazards during flight and ensuring safe operation.

[0119] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A gangway door lock, disposed within a gangway door locking device, for locking or unlocking the gangway door, characterized in that, include: A lock seat assembly (11) is provided on the door frame of the gangway door, including a lock seat (111) and a locking pin (112) fixedly provided on the lock seat (111); A lock box assembly (12), disposed on the gangway door, includes a lock box (121) and a lock hook (122) rotatably disposed within the lock box (121). The lock hook (122) has a long lock tongue (122a) and a short lock tongue (122b), and a lock groove (122c) is formed between the long lock tongue (122a) and the short lock tongue (122b); and A notification component (13) is disposed on the lock seat assembly (11) to indicate whether the gangway door lock is in a locked or unlocked state, thereby indicating that the gangway door has been locked or unlocked. The prompting component (13) includes: A micro switch (131) is disposed on the lock base (111); A single-headed swing arm (132) is rotatably mounted on the lock seat (111) and can rotate between a first trigger position and a second trigger position. When the single-headed swing arm (132) is in the first trigger position, the single-headed swing arm (132) presses the contact of the micro switch (131) to close it; when the single-headed swing arm (132) is in the second trigger position, the single-headed swing arm (132) disengages from the contact of the micro switch (131) to open it. An elastic element (133), disposed on the lock seat (111), is used to give the single-headed swing arm (132) a tendency to rotate toward the first trigger position. During the closing process of the gangway door, the locking pin (112) and the long locking tongue (122a) collide and engage, causing the locking hook (122) to rotate in the locking direction. During this process, the locking pin (112) gradually engages with the locking groove (122c), while the long locking tongue (122a) engages with the swing end of the single-headed swing arm (132) and drives the single-headed swing arm (132) to gradually rotate from the first trigger position to the second trigger position. As the gangway door gradually opens from the closed state, the locking hook (122) rotates in the unlocking direction under the action of external force. During this process, the locking pin (112) gradually disengages from the locking groove (122c), and at the same time, the long locking tongue (122a) disengages from the swing end of the single-headed swing arm (132). Under the action of the elastic member (133), the single-headed swing arm (132) gradually rotates from the second trigger position to the first trigger position.

2. The gangway door lock according to claim 1, characterized in that: in, The single-headed swing arm (132) is a rod, one end of which forms a rotational support with the lock seat (111), and the other end serves as the swing end of the single-headed swing arm (132) and is provided with a drive engagement part (132a), which is used to drive and engage with the long lock tongue (122a). The first sidewall of the single-headed swing arm (132) in the swing direction is provided with a trigger part (132b), which is used to press the contact of the micro switch (131). The trigger part (132b) corresponds to the contact of the micro switch (131).

3. The gangway door lock according to claim 2, characterized in that: in, A driving part (221a) is provided on the long locking tongue (122a), which is located at the extension end of the long locking tongue (122a) and is used to drive and engage with the driving engagement part (132a). When the locking hook (122) rotates in the locking direction, the driving part (221a) abuts against the driving engagement part (132a), thereby driving the single-head swing arm (132) to rotate from the first trigger position to the second trigger position.

4. The gangway door lock according to claim 3, characterized in that: in, The driving mating part (132a) includes a planar segment and an arc segment, and the driving part (221a) is planar. The trigger part (132b) is a slope, and one end of the slope that is relatively close to the swing end of the single-headed swing arm (132) is inclined toward the side away from the contact of the micro switch (131).

5. The gangway door lock according to any one of claims 3-4, characterized in that: in, The length of the long latch (122a) extending toward the side where the locking pin (112) is located is greater than the length of the short latch (122b) extending toward the side where the locking pin (112) is located. The drive unit (221a) is disposed on the side wall of the long latch (122a) facing away from the short latch (122b), and is connected to the extension end of the long latch (122a). During the closing process of the gangway door, the locking pin (112) engages with the side wall of the long latch (122a) facing the short latch (122b) to cause the locking hook (122) to rotate in the locking direction.

6. The gangway door lock according to any one of claims 2-4, characterized in that: in, The elastic element (133) is a torsion spring, one end of which abuts against the lock seat (111), and the other end abuts against the second sidewall in the swing direction of the single-headed swing arm (132). The second sidewall of the single-headed swing arm (132) in the swing direction is arranged opposite to its first sidewall in the swing direction. In the unlocked state, the single-headed swing arm (132) is held in the first trigger position by the elastic member (133).

7. The gangway door lock according to any one of claims 3-4, characterized in that: in, The lock base (111) has a mounting portion (111a) extending toward the side where the lock hook (122) is located, and the lock pin (112) is fixed to the extended end of the mounting portion (111a). The drive engagement portion (132a) extends radially outward from the locking pin (112), and there is a height difference between the drive engagement portion (132a) and the locking pin (112). A gap is formed between the drive engagement part (132a) and the locking pin (112) for the long locking tongue (122a) to extend into, so that the drive part (221a) and the drive engagement part (132a) drive to engage.

8. The gangway door lock according to any one of claims 2-4, characterized in that: in, The prompting component (13) also includes a blocking member (134), which is fixedly mounted on the lock base (111). When the single-headed swing arm (132) is in the first trigger position, the blocking member (134) abuts against the first sidewall in the swing direction of the single-headed swing arm (132).

9. The gangway door lock according to any one of claims 1-4, characterized in that: in, The lock box assembly (12) also includes: A first reset member (123) is disposed inside the lock box (121) to give the lock hook (122) a tendency to rotate in the unlocking direction; A stop (124), rotatably disposed within the lock housing (121), is used to block the lock hook (122) from rotating in the unlocking direction; and The second reset member (125) is disposed in the lock box (121) to make the stop member (124) tend to rotate toward the side where the lock hook (122) is located, thereby blocking the lock hook (122) with the stop member (124).

10. A gangway door locking device, characterized in that, include: A gangway door lock (10) is installed on the gangway door and its door frame; An internal unlocking component (20) is disposed on the surface of the gangway door facing the cabin interior, for unlocking the gangway door lock (10) from inside the cabin; as well as An external unlocking assembly (30) is disposed on the surface of the gangway door facing outward from the cabin, for unlocking the gangway door lock (10) from outside the cabin. The gangway door lock (10) is the gangway door lock as described in any one of claims 1-9.

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