CN118564147A

CN118564147A - Gangway ladder door lock and gangway ladder door locking device

Info

Publication number: CN118564147A
Application number: CN202310214252.3A
Authority: CN
Inventors: 都业宏; 刘佳惠; 王琳; 林增文
Original assignee: Yuhuan Tianrun Aviation Machinery Manufacturing Co ltd
Current assignee: Yuhuan Tianrun Aviation Machinery Manufacturing Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2024-08-30

Abstract

The invention relates to a gangway door lock and a gangway door locking device, which belong to the technical field of gangway doors, wherein the gangway door locking device comprises a gangway door lock, an inner unlocking component and an outer unlocking component, the gangway door lock comprises a lock seat component, a lock box component and a prompting component, the lock seat component comprises a lock seat and a lock pin fixedly arranged on the lock seat, the lock box component comprises a lock box and a lock hook rotatably arranged in the lock box, the lock hook is provided with a long lock tongue and a short lock tongue, a lock groove is formed between the long lock tongue and the short lock tongue, the prompting component comprises a micro switch, a single-head swing arm piece and an elastic piece, and the single-head swing arm piece is rotatably arranged on the lock seat and can rotate between a first triggering position and a second triggering position. According to the invention, the prompt component is arranged, so that a crew can accurately and intuitively unlock the locking and unlocking states of the gangway ladder door, thereby eliminating potential safety hazards in the flying process and ensuring the use safety.

Description

Gangway ladder door lock and gangway ladder door locking device

Technical Field

The invention relates to a gangway ladder door lock and a gangway ladder door locking device, and belongs to the technical field of gangway ladder doors.

Background

At present, a gangway door is often used on an aircraft for passengers to get on or off the aircraft. When the elevator is not in use, the gangway door is closed to be retracted into the engine room. The gangway door lock is required to be used to unlock or lock the gangway door during lowering and retracting of the gangway door.

When the existing gangway ladder door lock is used, the opening and closing states of the gangway ladder door are generally observed through naked eyes, so that the locking and unlocking states of the gangway ladder door are judged, and a crew cannot accurately and intuitively know the locking and unlocking states of the gangway ladder door. When the gangway door is unlocked by mistake or fails to be locked and is not in place, a crew member is difficult to know the current state of the gangway door accurately and intuitively, so that potential safety hazards exist in the flying process, and the use safety of the gangway door lock is reduced.

Thus, in order for the crew to be able to accurately and intuitively unlock the locked and unlocked status of the gangway door, a new, optimally configured gangway door locking device is needed.

Disclosure of Invention

The invention aims to provide a gangway door lock and a gangway door locking device, which enable a crew member to accurately and intuitively unlock a gangway door.

The invention provides a gangway ladder door lock, which is arranged in a gangway ladder door locking device and is used for locking or unlocking the gangway ladder doors, and has the characteristics that:

The lock seat assembly is arranged on a door frame of the gangway ladder door and comprises a lock seat and a lock pin fixedly arranged on the lock seat;

The lock box assembly is arranged on the gangway ladder door and comprises a lock box and a lock hook rotatably arranged in the lock box, wherein the lock hook is provided with a long lock tongue and a short lock tongue, and a lock groove is formed between the long lock tongue and the short lock tongue; and

The prompting component is arranged on the lock seat component and is used for prompting the locking device of the gangway ladder door to be in a locking state or an unlocking state so as to prompt the gangway ladder door to be locked or unlocked,

Wherein, the suggestion subassembly includes:

The micro switch is arranged on the lock seat;

The single-head swing arm piece is rotatably arranged on the lock seat and can rotate between a first triggering position and a second triggering position,

When the single-head swing arm piece is in a first trigger position, the single-head swing arm piece extrudes the contact of the micro switch to be in a closed state, and when the single-head swing arm piece is in a second trigger position, the single-head swing arm piece is separated from the contact of the micro switch to be in an open state; and

The elastic piece is arranged on the lock seat and used for enabling the single-head swing arm piece to have a tendency of rotating towards the first triggering position,

In the closing process of the gangway door, the lock pin and the long lock tongue are in collision fit to enable the lock hook to rotate along the locking direction, the lock pin is gradually buckled with the lock groove in the process, meanwhile, the long lock tongue is in driving fit with the swinging end of the single-head swing arm piece, and the single-head swing arm piece is driven to gradually rotate from a first triggering position to a second triggering position;

the gangway ladder door is opened from the in-process that the closed state gradually, and the latch hook rotates along the unblock direction under the effect of external force, and this in-process lockpin breaks away from mutually with the locked groove gradually, and long spring bolt breaks away from the cooperation with the swing end of single-head swing arm spare simultaneously, and single-head swing arm spare rotates from the second trigger position gradually to first trigger position under the effect of elastic component.

The gangway ladder door lock provided by the invention can also have the following characteristics:

Wherein the single-head swing arm part is a rod piece, one end of the rod piece forms a rotary support with the lock seat, the other end of the rod piece is used as a swing end of the single-head swing arm part and is provided with a driving matching part which is used for driving and matching with the long lock tongue,

The first side wall of the single-head swing arm piece in the swing direction is provided with a trigger part which is used for extruding the contact of the micro switch, and the trigger part corresponds to the contact of the micro switch.

wherein the long lock tongue is provided with a driving part which is arranged at the extending end of the long lock tongue and is used for driving and matching with the driving matching part,

When the latch hook rotates along the locking direction, the driving part is in butt joint with the driving matching part, so that the single-head swing arm piece is driven to rotate from the first triggering position to the second triggering position.

wherein the driving matching part comprises a plane section and an arc section, the driving part is a plane,

The triggering part is an inclined plane, and one end, which is relatively close to the swinging end of the single-head swinging arm piece, of the inclined plane inclines towards one side, which is far away from the micro switch contact.

wherein the length of the long lock tongue extending towards one side of the lock pin is longer than the length of the short lock tongue extending towards one side of the lock pin,

The driving part is arranged on the side wall of the long lock tongue, which is back to the short lock tongue, and is connected with the extending end of the long lock tongue,

In the closing process of the gangway ladder door, the lock pin is matched with the side wall of the long lock tongue towards the short lock tongue in a striking way, so that the lock hook rotates along the locking direction.

wherein the elastic piece is a torsion spring, one end of the elastic piece is abutted with the lock seat, the other end is abutted with the second side wall of the single-head swing arm piece in the swinging direction,

The second side wall of the single-head swing arm piece in the swing direction is opposite to the first side wall of the single-head swing arm piece in the swing direction,

In the unlocking state, the single-head swing arm piece is kept at the first triggering position under the action of the elastic piece.

Wherein the lock seat is provided with a mounting part extending towards one side where the lock hook is positioned, the lock pin is fixed at the extending end of the mounting part,

The driving engagement portion extends to the radially outer side of the lock pin, and there is a height difference between the driving engagement portion and the lock pin,

A gap for the long lock tongue to extend in is formed between the driving matching part and the lock pin, so that the driving part is in driving matching with the driving matching part.

Wherein the prompting component also comprises a blocking piece which is fixedly arranged on the lock seat,

When the single-head swing arm piece is positioned at the first triggering position, the blocking piece is abutted against the first side wall in the swing direction of the single-head swing arm piece.

Wherein, lock box subassembly still includes:

The first reset piece is arranged in the lock box and used for enabling the lock hook to have a tendency of rotating along the unlocking direction;

The locking piece is rotatably arranged in the lock box and used for blocking the lock hook in the direction that the lock hook rotates along the unlocking direction; and

The second reset piece is arranged in the lock box and used for enabling the stop piece to have a tendency of rotating towards one side where the lock hook is located, so that the stop piece can form a stop for the lock hook.

The invention provides a gangway ladder door locking device, which has the following characteristics:

the gangway ladder door lock is arranged on the gangway ladder door and the door frame thereof;

An inner unlocking component which is arranged on the surface of the gangway door facing to one side in the cabin and is used for unlocking the gangway door lock in the cabin; and

An outer unlocking component which is arranged on the surface of one side of the gangway door facing to the outside of the engine room and is used for unlocking the gangway door lock outside the engine room,

Wherein the gangway door lock is as described above.

Therefore, compared with the prior art, the invention has the following advantages:

According to the gangway door lock and the gangway door locking device, the gangway door locking device comprises the gangway door lock, an inner unlocking component and an outer unlocking component, wherein the gangway door lock comprises a lock seat component, a lock box component and a prompt component, the lock seat component comprises a lock seat and a lock pin fixedly arranged on the lock seat, the lock box component comprises a lock box and a lock hook rotatably arranged in the lock box, the lock hook is provided with a long lock tongue and a short lock tongue, a lock groove is formed between the long lock tongue and the short lock tongue, the prompt component comprises a micro switch, a single-head swing arm part and an elastic part, the lock hook synchronously moves along with the gangway door in the closing process of the gangway door, the long lock tongue on the lock hook and the lock pin on a door frame are matched in an impact manner in the moving process to enable the lock hook to rotate along the locking direction, and simultaneously the long lock tongue is matched with the swing end of the single-head part in a driving manner, and drives the single-head part to gradually rotate from a first trigger position to a second trigger position, and when the gangway door is completely closed, the lock pin and the lock groove completely realizes the locking of the gangway door lock to rotate to the single-head swing arm part, so that the gangway door lock is in the state, and the gangway door is triggered to be in the locking state, and the locking state is changed, and the gangway door is in the locking state, and the locking state is triggered, and has been closed;

In the process that the gangway door is gradually opened from the closed state, the lock hook rotates along the unlocking direction under the action of external force, the lock pin is gradually separated from the locking groove in the rotation process, meanwhile, the long lock tongue is separated from the swinging end of the single-head swing arm part, the single-head swing arm part rotates from the second triggering position to the first triggering position gradually under the action of the elastic part, when the gangway door is opened to a certain angle, the lock pin is completely separated from the locking groove, meanwhile, the single-head swing arm part rotates to the first triggering position, so that the state of the micro switch is changed, the micro switch is triggered to enable the micro switch to send a signal to prompt that the gangway door lock is in the unlocking state, and the gangway door is unlocked, so that a crew can accurately and intuitively unlock the locking state and unlocking state of the gangway door, and the safety hidden danger in the flight process is eliminated, and the use safety is ensured.

Drawings

FIG. 1 is a schematic perspective view of a gangway door locking apparatus in accordance with an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a gangway door lock according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the single-head swing arm in the first trigger position according to the embodiment of the present invention;

FIG. 4 is a schematic view of the structure of the single-head swing arm in the second trigger position according to the embodiment of the present invention;

FIG. 5 is a schematic perspective view of a lock base assembly according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a lock box assembly according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of a single-head swing arm member according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a lock base assembly according to an embodiment of the present invention;

FIG. 9 is a schematic view of a portion of the structure of a lock box assembly in accordance with an embodiment of the present invention;

FIG. 10 is a schematic cross-sectional view of a lock box assembly in accordance with an embodiment of the invention;

FIG. 11 is a schematic diagram of a front view of an inner unlocking assembly according to an embodiment of the present invention;

Fig. 12 is a schematic front view of an external unlocking assembly according to an embodiment of the present invention.

The index marks in the drawings are as follows:

The gangway door locking apparatus 100a; gangway door locks 10;

A lock base assembly 11; a lock base 111; a mounting portion 111a; a lock pin 112; a support shaft 113;

A lock box assembly 12; a lock case 121; latch hook 122; a long tongue 122a; a driving section 221a; short tongue 122b; a locking groove 122c; a second engagement portion 122d; a second tooth 221d; a first reset member 123; a stopper 124; a first engagement portion 124a; a first tooth portion 241a; a second restoring member 125;

a prompt component 13; a micro switch 131; a single-head swing arm member 132; a drive engagement portion 132a; a trigger 132b; an elastic member 133; a blocking member 134;

an inner unlocking assembly 20; an outer unlocking assembly 30; a first pull cord 40; a second pull cord 50.

Detailed Description

In order to make the technical means, creation features, achievement of objects and effects achieved by the present invention easy to understand, the present invention will be specifically described below with reference to the embodiments and the accompanying drawings.

The present embodiment provides a gangway door lock and a gangway door locking device that enable a crew member to accurately and intuitively unlock and unlock a gangway door.

Fig. 1 is a schematic perspective view of a gangway door locking apparatus in accordance with an embodiment of the present invention.

As shown in fig. 1, the gangway door locking apparatus 100a of the present embodiment includes a gangway door lock 10, an inner unlocking assembly 20, and an outer unlocking assembly 30. The gangway door lock 10 is provided on a gangway door and a door frame thereof. An inner unlocking assembly 20 is provided on the surface of the gangway door facing the inner side of the nacelle for unlocking the gangway door lock 10 in the nacelle. An outer unlocking assembly 30 is provided on the surface of the gangway door facing the outer side of the nacelle for unlocking the gangway door lock 10 from the outside of the nacelle.

It should be noted that, the bottom of the gangway door is hinged to the door frame, and the gangway door lock 10 is disposed at the top end of the gangway door and the door frame corresponding to the top end of the gangway door, and when in use, the gangway door rotates around the hinge point of the gangway door and the door frame to realize opening or closing.

In the present embodiment, the number of the porthole door locks 10 is two, and two porthole door locks 10 are disposed on the porthole door in a spaced manner, so that two lock points are formed between the porthole door and the door frame, thereby ensuring locking stability.

FIG. 2 is a schematic perspective view of a gangway door lock according to an embodiment of the present invention; FIG. 3 is a schematic view of the structure of the single-head swing arm in the first trigger position according to the embodiment of the present invention; fig. 4 is a schematic structural view of the single-head swing arm in the second trigger position according to the embodiment of the present invention.

As shown in fig. 2-4, gangway door lock 10 includes a lock base assembly 11, a lock box assembly 12, and a cue assembly 13. The lock base assembly 11 is provided on a door frame of a gangway door, and includes a lock base 111 and a lock pin 112 fixedly provided on the lock base 111. The lock box assembly 12 is disposed on a gangway door and includes a lock box 121 and a lock hook 122 rotatably disposed in the lock box 121, the lock hook 122 having 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 122 b. The prompting assembly 13 is disposed on the lock seat assembly 11, and is used for prompting the gangway door lock 10 to be in a locking state or an unlocking state, so as to prompt the gangway door to be locked or unlocked, and comprises a micro switch 131, a single-head swing arm 132 and an elastic member 133. The micro switch 131 is provided on the lock base 111. The single-head swing arm 132 is rotatably disposed on the lock base 111 and is rotatable between a first trigger position and a second trigger position. When the single-head swing arm piece 132 is in the first trigger position, the single-head swing arm piece 132 presses the contact of the micro switch 131 to be in a closed state; when in the second triggering position, the single-head swing arm 132 is separated from the contact of the micro switch 131 to be in an off state. An elastic member 133 is provided on the lock base 111 for making the single-head swing arm member 132 have a tendency to rotate toward the first trigger position. The direction indicated by D1 in fig. 3 is the locking direction, and the direction indicated by D2 in fig. 4 is the unlocking direction.

As can be appreciated, during the closing process of the gangway door, the latch hook 122 moves synchronously with the gangway door, during the movement, the long latch tongue 122a on the latch hook 122 and the latch pin 112 on the door frame are in collision fit to enable the latch hook 122 to rotate along the locking direction, during the rotation, the latch pin 112 is gradually buckled with the latch slot 122c, meanwhile, the long latch tongue 122a is in driving fit with the swinging end of the single-head swing arm member 132, and drives the single-head swing arm member 132 to gradually rotate from the first triggering position to the second triggering position, when the gangway door is completely closed, the latch pin 112 and the latch slot 122c are completely buckled to enable the locking of the gangway door lock 10, and meanwhile, the single-head swing arm member 132 rotates to the second triggering position, so that the state of the micro switch 131 is changed, and the micro switch 131 is triggered to send a signal to prompt that the gangway door lock 10 is in a locking state, thereby prompting that the gangway door is locked;

In the process that the gangway door is gradually opened from the closed state, the lock hook 122 rotates along the unlocking direction under the action of external force, the lock pin 112 is gradually separated from the locking groove 122c in the rotating process, meanwhile, the long lock tongue 122a is separated from the swinging end of the single-head swing arm piece 132, the single-head swing arm piece 132 rotates from the second triggering position to the first triggering position under the action of the elastic piece 133, when the gangway door is opened to a certain angle, the lock pin 112 is completely separated from the locking groove 122c, meanwhile, the single-head swing arm piece 132 rotates to the first triggering position, so that the state of the micro switch 131 is changed, and the micro switch 131 is triggered to send a signal to prompt that the gangway door lock 10 is in the unlocking state, so that the gangway door is unlocked, and a crew can accurately and intuitively unlock the locking and unlocking state of the gangway door, so that the potential safety hazard in the flying process is eliminated, and the safety of use is ensured.

Fig. 5 is a schematic perspective view of a lock base assembly according to an embodiment of the present invention.

As shown in fig. 5, the single-head swing arm 132 is a lever, one end of which forms a rotation support with the lock base 111, and the other end of which is a swing end of the single-head swing arm 132 and is provided with a driving engagement portion 132a for driving engagement with the long tongue 122 a. A first side wall in the swinging direction of the single-head swing arm member 132 is provided with a trigger portion 132b for pressing the contact of the micro switch 131, the trigger portion 132b corresponding to the contact of the micro switch 131.

As can be appreciated, when the latch hook 122 rotates along the locking direction, the long latch tongue 122a on the latch hook 122 is in driving engagement with the driving engagement portion 132a at the swinging end of the single-head swing arm member 132, so as to drive the single-head swing arm member 132 to rotate from the first triggering position to the second triggering position, so that the triggering portion 132b on the single-head swing arm member 132 is separated from the contact of the micro switch 131 to make it in an off state, thereby realizing the change of the state of the micro switch 131.

In this embodiment, the single-head swing arm 132 is mounted on the lock base 111 through the support shaft 113, the support shaft 113 is fixed on the lock base 111, and one end of the single-head swing arm 132 is rotatably sleeved on the support shaft 113.

Fig. 6 is a schematic perspective view of a lock box assembly according to an embodiment of the present invention.

As shown in fig. 6, the long tongue 122a is provided with a driving portion 221a provided at an extended end of the long tongue 122a for driving engagement with the driving engagement portion 132 a.

As can be appreciated, when the latch hook 122 rotates in the latch direction, the driving portion 221a is in abutting engagement with the driving engagement portion 132a, so as to drive the single-head swing arm 132 to rotate from the first trigger position to the second trigger position.

Fig. 7 is a schematic perspective view of a single-head swing arm according to an embodiment of the present invention.

As shown in fig. 7, the driving engagement portion 132a includes a planar section and an arc section, and the driving portion 221a is planar. The triggering portion 132b is a slope, and an end of the slope, which is relatively close to the swinging end of the single-head swing arm member 132, is inclined toward a side away from the contact of the micro switch 131.

As can be appreciated, when the latch hook 122 rotates along the locking direction, the driving portion 221a is first in abutting engagement with the cambered surface section of the driving engagement portion 132a, and then in the process of continuing to rotate the latch hook 122, the driving portion 221a is gradually in abutting engagement with the planar section of the driving engagement portion 132a, so as to push the single-head swing arm member 132 to rotate towards the second triggering position, and when the driving portion 221a is completely in abutting engagement with the planar section of the driving engagement portion 132a, the single-head swing arm member 132 rotates to the second triggering position.

As shown in fig. 6, the length of the long tongue 122a extending toward the side of the lock pin 112 is longer than the length of the short tongue 122b extending toward the side of the lock pin 112. The driving portion 221a is disposed on the side wall of the long tongue 122a facing away from the short tongue 122b, and is connected to the extension end of the long tongue 122 a.

As can be appreciated, during the closing process of the gangway door, the latch pin 112 is in strike fit with the side wall of the long latch 122a facing the short latch 122b to rotate the latch hook 122 along the latching direction, so that the single-head swing arm 132 can be pushed to rotate towards the second triggering position by the driving part 221a during the rotation process of the latch hook 122.

As shown in fig. 5, the elastic member 133 is a torsion spring, one end of which abuts against the lock base 111, and the other end abuts against the second side wall in the swinging direction of the single-head swing arm member 132. The second side wall of the single-head swing arm 132 in the swing direction is disposed opposite to the first side wall thereof in the swing direction. In the unlocked state, the single-head swing arm member 132 is held in the first trigger position by the elastic member 133.

As can be appreciated, when the driving portion 221a is in driving engagement with the driving engagement portion 132a, the single-head swing arm member 132 is driven to rotate from the first triggering position to the second triggering position, and the elastic member 133 gradually accumulates force during this process; when the driving portion 221a is disengaged from the driving engagement portion 132a, the single-head swing arm member 132 rotates from the second trigger position to the first trigger position under the reset action of the elastic member 133.

In this embodiment, the elastic member 133 is sleeved on the support shaft 113. In other alternative embodiments, the elastic member 133 may also be a compression spring, specifically, one end of the compression spring abuts against the second side wall in the swinging direction of the single-head swing arm member 132, and the other end abuts against the inner wall of the lock base 111.

Fig. 8 is a schematic cross-sectional view of a lock base assembly according to an embodiment of the present invention.

As shown in fig. 8, 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 an extending end of the mounting portion 111 a. The 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 into which the long tongue 122a extends is formed between the driving engagement portion 132a and the lock pin 112, so that the driving portion 221a is in driving engagement with the driving engagement portion 132 a.

As can be appreciated, the long tongue 122a of the latch hook 122 can extend into the gap to be in strike fit with the latch pin 112 during closing of the gangway door, and rotate the latch hook 122 in the latching direction, and the driving portion 221a can be in driving fit with the driving fit portion 132a during rotation of the latch hook 122.

In the present embodiment, the position of the driving engagement portion 132a is higher than the position of the lock pin 112, so that the lock hook 122 moves along with the gangway door, the lock pin 112a can accurately extend into the gap and be in collision engagement with the lock pin 112, and the long lock pin 122a can be prevented from colliding with the driving engagement portion 132a due to interference.

As shown in fig. 3, the reminder assembly 13 further comprises a blocking member 134 fixedly provided on the lock base 111. When the single-head swing arm 132 is at the first trigger position, the blocking member 134 abuts against the first sidewall in the swing direction of the single-head swing arm 132.

As can be appreciated, the blocking effect of the blocking member 134 can keep the single-head swing arm member 132 at the first triggering position, so as to realize the limit fixation of the single-head swing arm member 132, and reduce the external force applied to the micro switch 131 by the single-head swing arm member 132, thereby improving the service life of the micro switch 131.

Fig. 9 is a schematic view of a portion of a lock box assembly in accordance with an embodiment of the present invention.

As shown in fig. 9, the lock box assembly 12 further includes a first reset member 123, a stop 124, and a second reset member 125. A first reset member 123 is provided in the lock case 121 for causing the latch hook 122 to have a tendency to rotate in the unlocking direction. A stopper 124 is rotatably provided in the lock case 121 for blocking the latch hook 122 in a direction in which it rotates in the unlocking direction. The second restoring member 125 is disposed in the lock case 121 to cause the stopper 124 to have a tendency to rotate toward the side where the latch hook 122 is located, thereby causing the stopper 124 to block the latch hook 122.

It can be appreciated that, the latch hook 122 is kept at a position where it is buckled with the latch groove 122c by the stopper 124 against the acting force of the first reset member 123, so that the gangway door lock 10 is in a locked state, in addition, after the stopper 124 rotates to a side far from the latch hook 122 under the action of external force to cancel blocking, the latch hook 122 can rotate in an unlocking direction under the action of the first reset member 123, so as to disengage from the latch groove 122c, and after the external force applied to the stopper 124 is cancelled, the latch hook 122 can rotate to a position where it forms blocking for the latch hook 122 under the action of the second reset member 125.

In this embodiment, the first restoring member 123 and the second restoring member 125 are torsion springs, and the latch hook 122 and the stopper 124 are mounted in the lock case 121 by a fixed shaft. Specifically, the first reset element 123 and the second reset element 125 are respectively sleeved on the corresponding fixed shafts, one end of the first reset element 123 is abutted against the side wall of the lock box 121, and the other end is abutted against the lock hook 122. One end of the second restoring member 125 abuts against the side wall of the lock case 121, and the other end abuts against the stopper 124.

As shown in fig. 9, the circumferential surface of the stopper 124 has a first engagement portion 124a, and the circumferential surface of the latch hook 122 has a second engagement portion 122d. The first engagement portion 124a selectively engages with a different position of the second engagement portion 122d, and the two portions are engaged to form a stop in a direction in which the latch hook 122 rotates in the unlocking direction. The first engagement portion 124a includes one first tooth portion 241a, and the second engagement portion 122d includes three continuous second tooth portions 221d.

As can be appreciated, when the first tooth portion 241a is engaged with the second tooth portion 221d at one end, the latch 124 blocks the latch hook 122 at the locking position, where the latch pin 112 is engaged with the latch slot 122c, and when the first tooth portion 241a is engaged with the second tooth portion 221d at the other end, the latch 124 blocks the latch hook 122 at the unlocking position, where the latch pin 112 is disengaged from the latch slot 122c, thereby enabling the latch 124 to block the latch hook 122 in a direction in which the latch hook 122 rotates in the unlocking direction; when the first tooth portion 241a is engaged with the second tooth portion 221d, the latch hook 122 is blocked by the stopper 124 at the transition position, and the latch pin 112 is partially buckled with the latch groove 122c, so that the latch hook 122 can be disengaged from the locking position to the transition position when unhooking occurs, and cannot be directly disengaged from the unlocking position, thereby playing a role of safety.

FIG. 10 is a schematic cross-sectional view of a lock box assembly in accordance with an embodiment of the invention; fig. 11 is a schematic front view of an inner unlocking component in an embodiment of the present invention.

As shown in fig. 1, 10 and 11, two gangway door locks 10 are each drivingly connected to the inner release assembly 20 by a first pull cord 40. Specifically, one end of the first pull cord 40 is fixedly connected to the rotational end of the stopper 124, and the other end is fixedly connected to one swing end of the swing arm in the inner unlocking assembly 20.

As can be appreciated, when the inner unlocking assembly 20 works, the swing arm in the inner unlocking assembly 20 can be driven to rotate, and the stop members 124 in the two gangway door locks 10 can be pulled by the first pull ropes 40 to rotate towards the side far away from the latch hooks 122 in the swing arm rotating process, so that the stop members 124 cancel the blocking of the latch hooks 122 in the unlocking direction, and the latch hooks 122 can rotate in the unlocking direction under the action of the first reset members 123, so that the gangway door locks 10 are unlocked.

As shown in fig. 1 and 12, the inner release assembly 20 is drivingly connected to the outer release assembly 30 by a second pull cord 50. Specifically, one end of the second pull rope 50 is fixedly connected with one swing end of the swing arm in the inner unlocking assembly 20, and the other end is fixedly connected with one swing end of the swing arm in the outer unlocking assembly 30.

It will be appreciated that the outer unlocking assembly 30 is operable to rotate by pulling the swing arm in the inner unlocking assembly 20 via the second pull cord 50, thereby pulling the stops 124 in the two gangway door locks 10 via the first pull cord 40 to rotate toward the side remote from the shackle 122, thereby unlocking the gangway door locks 10.

In this embodiment, the structures of the inner unlocking component 20 and the outer unlocking component 30 are identical to those of the inner locking plate component and the outer locking plate component disclosed in the patent of CN202111268319.9, and therefore, the description is omitted herein.

Effects and effects of the examples

According to the gangway door lock and the gangway door locking device related to the embodiment, the gangway door locking device comprises the gangway door lock, an inner unlocking component and an outer unlocking component, wherein the gangway door lock comprises a lock seat component, a lock box component and a prompting component, the lock seat component comprises a lock seat and a lock pin fixedly arranged on the lock seat, the lock box component comprises a lock box and a lock hook rotatably arranged in the lock box, the lock hook is provided with a long lock tongue and a short lock tongue, a lock groove is formed between the long lock tongue and the short lock tongue, the prompting component comprises a micro switch, a single-head swing arm component and an elastic component, the lock hook synchronously moves along with the gangway door in the closing process of the gangway door, the long lock tongue on the lock hook and the lock pin on the door frame are in collision fit in the moving process to enable the lock hook to rotate along the locking direction, the lock pin is gradually buckled with the locking groove in the rotating process, meanwhile, the long lock tongue is in driving fit with the swinging end of the single-head swing arm piece, the single-head swing arm piece is driven to gradually rotate from a first triggering position to a second triggering position, when the gangway ladder door is completely closed, the lock pin is completely buckled with the locking groove to achieve locking of the gangway ladder door lock, meanwhile, the single-head swing arm piece rotates to the second triggering position, so that the state of the micro switch is changed, and the micro switch is triggered to enable the micro switch to send a signal to prompt that the gangway ladder door lock is in a locking state, so that the gangway ladder door is locked;

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims

1. A gangway door lock provided in a gangway door locking device for locking or unlocking the gangway door, comprising:

The lock seat assembly (11) is arranged on a door frame of the gangway ladder door and comprises a lock seat (111) and a lock pin (112) fixedly arranged on the lock seat (111);

The lock box assembly (12) is arranged on the gangway door and comprises a lock box (121) and a lock hook (122) rotatably arranged in the lock box (121), the lock hook (122) is provided with a long lock tongue (122 a) and a short lock tongue (122 b), and a lock groove (122 c) is formed between the long lock tongue (122 a) and the short lock tongue (122 b); and

A prompting component (13) arranged on the lock seat component (11) and used for prompting the lock of the gangway ladder door to be in a locking state or an unlocking state so as to prompt the gangway ladder door to be locked or unlocked,

Wherein the prompting component (13) comprises:

A microswitch (131) arranged on the lock base (111);

A single-head swing arm (132) rotatably arranged on the lock base (111) and capable of rotating between a first triggering position and a second triggering position,

When the single-head swing arm (132) is in the first trigger position, the single-head swing arm (132) presses the contact of the micro switch (131) to be in a closed state, and when the single-head swing arm (132) is in the second trigger position, the single-head swing arm (132) is separated from the contact of the micro switch (131) to be in an open state; and

An elastic member (133) provided on the lock base (111) for causing the single-head swing arm member (132) to have a tendency to rotate toward the first trigger position,

In the closing process of the gangway door, the lock pin (112) is in collision fit with the long lock tongue (122 a) to enable the lock hook (122) to rotate along the locking direction, in the process, the lock pin (112) is gradually buckled with the lock groove (122 c), meanwhile, the long lock tongue (122 a) is in driving fit with the swinging end of the single-head swing arm part (132), and the single-head swing arm part (132) is driven to gradually rotate from the first triggering position to the second triggering position;

The gangway ladder door is gradually opened from a closed state, the lock hook (122) rotates along an unlocking direction under the action of external force, the lock pin (112) is gradually separated from the lock groove (122 c) in the process, meanwhile, the long lock tongue (122 a) is separated from the swinging end of the single-head swing arm part (132), and the single-head swing arm part (132) rotates from the second triggering position to the first triggering position under the action of the elastic part (133).

2. The gangway door lock of claim 1, wherein:

Wherein the single-head swing arm part (132) is a rod piece, one end of the rod piece forms a rotation support with the lock seat (111), the other end of the rod piece is used as a swing end of the single-head swing arm part (132) and is provided with a driving matching part (132 a) which is used for driving and matching with the long lock tongue (122 a),

The first side wall of the single-head swing arm piece (132) in the swing direction is provided with a trigger part (132 b) which is used for extruding the contact of the micro switch (131), and the trigger part (132 b) corresponds to the contact of the micro switch (131).

3. The gangway door lock of claim 2, wherein:

Wherein the long lock tongue (122 a) is provided with a driving part (221 a) which is arranged at the extending end of the long lock tongue (122 a) and is used for driving and matching with the driving matching part (132 a),

When the latch hook (122) rotates along the locking direction, the driving part (221 a) is in abutting fit with the driving matching part (132 a), so that the single-head swing arm piece (132) is driven to rotate from the first triggering position to the second triggering position.

4. A gangway door lock as claimed in claim 3, wherein:

Wherein the driving matching part (132 a) comprises a plane section and an arc section, the driving part (221 a) is a plane,

The triggering part (132 b) is an inclined plane, and one end, which is relatively close to the swinging end of the single-head swinging arm piece (132), of the inclined plane is inclined towards one side, which is far away from the contact of the micro switch (131).

5. The gangway door lock of any one of claims 3-4, wherein:

wherein the length of the long lock tongue (122 a) extending towards the side of the lock pin (112) is longer than the length of the short lock tongue (122 b) extending towards the side of the lock pin (112),

The driving part (221 a) is arranged on the side wall of the long lock tongue (122 a) facing away from the short lock tongue (122 b), is connected with the extending end of the long lock tongue (122 a),

During closing of the gangway door, the lock pin (112) is in collision fit with the side wall of the long lock tongue (122 a) facing the short lock tongue (122 b) so that the lock hook (122) rotates along the locking direction.

6. The gangway door lock of any one of claims 2-4, wherein:

Wherein the elastic piece (133) is a torsion spring, one end of the elastic piece is abutted against the lock seat (111), the other end is abutted against the second side wall of the single-head swing arm piece (132) in the swing direction,

The second side wall of the single-head swing arm piece (132) in the swing direction is opposite to the first side wall of the single-head swing arm piece in the swing direction,

In the unlocking state, the single-head swing arm piece (132) is kept at the first triggering position under the action of the elastic piece (133).

7. The gangway door lock of any one of claims 3-4, wherein:

wherein the lock seat (111) is provided with a mounting part (111 a) extending towards one side where the lock hook (122) is positioned, the lock pin (112) is fixed at the extending end of the mounting part (111 a),

The drive engagement portion (132 a) extends to a radially outer side of the lock pin (112), and a height difference is provided between the drive engagement portion (132 a) and the lock pin (112),

A gap into which the long lock tongue (122 a) extends is formed between the drive engagement portion (132 a) and the lock pin (112) so that the drive portion (221 a) is in drive engagement with the drive engagement portion (132 a).

8. The gangway door lock of any one of claims 2-4, wherein:

wherein the prompting component (13) also comprises a blocking piece (134) which is fixedly arranged on the lock seat (111),

When the single-head swing arm (132) is at the first trigger position, the blocking member (134) abuts against a first side wall in the swing direction of the single-head swing arm (132).

9. The gangway door lock of any one of claims 1-4, wherein:

Wherein the lock box assembly (12) further comprises:

A first reset member (123) disposed in the lock case (121) for causing the lock hook (122) to have a tendency to rotate in the unlocking direction;

A stopper (124) rotatably provided in the lock case (121) for blocking the lock hook (122) in a direction in which it rotates in the unlocking direction; and

And a second reset piece (125) is arranged in the lock box (121) and used for enabling the stop piece (124) to have a trend of rotating towards the side where the lock hook (122) is arranged, so that the stop piece (124) can form a blocking for the lock hook (122).

10. A gangway door locking apparatus, comprising:

a gangway ladder door lock (10) arranged on the gangway ladder door and a door frame thereof;

an inner unlocking assembly (20) arranged on the surface of the gangway door facing to one side in the cabin and used for unlocking the gangway door lock (10) in the cabin; and

An outer unlocking assembly (30) arranged on the surface of the side, facing the outside of the cabin, of the gangway door, for unlocking the gangway door lock (10) outside the cabin,

Wherein the gangway door lock (10) is a gangway door lock according to any one of claims 1-9.