CN118564146A

CN118564146A - Gangway door lock and gangway door assembly

Info

Publication number: CN118564146A
Application number: CN202310210431.XA
Authority: CN
Inventors: 张体磊; 刘佳惠; 王琳; 刘勇
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
Anticipated expiration: 2043-02-28
Also published as: CN118564146B

Abstract

The present invention relates to a gangway door lock and a gangway door assembly, belonging to the technical field of gangway doors, the gangway door lock comprises a lock seat assembly, a lock box assembly and a prompt assembly, the lock seat assembly comprises a lock seat and a lock pin fixedly arranged on the lock seat, the lock box assembly comprises a lock box and a lock hook rotatably arranged in the lock box, the lock hook has a long lock tongue and a short lock tongue, a lock groove is formed between the long lock tongue and the short lock tongue, and the prompt assembly comprises a micro switch, a double-headed swing arm member and an elastic member. The present invention enables the crew to accurately and intuitively understand the locked and unlocked states of the gangway door by setting a prompt assembly, thereby eliminating safety hazards during flight and ensuring safety of use, and triggering the micro switch by driving and cooperating the short lock tongue with the double-headed swing arm member, which can effectively prevent the long lock tongue from colliding with the double-headed swing arm member during the closing process of the gangway door due to installation errors.

Description

Gangway ladder door lock and gangway ladder door assembly

Technical Field

The invention relates to a gangway ladder door lock and a gangway ladder door assembly, 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 assembly is needed.

Disclosure of Invention

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

The invention provides a gangway door lock, which is arranged on a gangway door and a door frame thereof and is used for locking or unlocking the gangway door, 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 double-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 double-head swing arm piece is in a first trigger position, the first swing end of the double-head swing arm piece extrudes the contact of the micro switch to enable the contact to be in a closed state, and when the double-head swing arm piece is in a second trigger position, the first swing end of the double-head swing arm piece is separated from the contact of the micro switch to enable the contact to be in an open state; and

The elastic piece is arranged on the lock seat and used for enabling the double-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 short lock tongue is in driving fit with the second swinging end of the double-head swing arm piece, and the double-head swing arm piece is driven to gradually rotate from the first triggering position to the 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 short spring bolt breaks away from the cooperation with the second swing end of double-end swing arm spare simultaneously, and double-end swing arm spare rotates to first trigger position gradually from the second 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 double-end swing arm part is a rod part, the middle part of the double-end swing arm part and the lock seat form a rotary support,

The first swing end of the double-head swing arm piece is provided with a trigger part which is used for extruding the contact of the micro switch,

The second swing end of the double-end swing arm piece is provided with a driving matching part which is used for driving and matching with the short lock tongue.

Wherein, the short lock tongue is provided with a driving structure which is used for driving and matching with the driving matching part and comprises a guiding part and a driving part which are adjacently arranged, the guiding part is used for guiding the driving matching part to be in driving and matching with the driving part, the driving part is used for driving and matching with the driving matching part,

When the latch hook rotates along the locking direction, the driving matching part is in abutting matching with the guide part, and then is in abutting matching with the driving matching part under the action of the guide part, so that the double-head swing arm piece is driven to rotate from the first triggering position to the second triggering position.

Wherein, drive portion and drive cooperation portion are protruding cambered surface, and the guide portion is the inclined plane.

Wherein the elastic piece is a compression spring, one end of the elastic piece is abutted with the lock seat, the other end is abutted with one side wall of the trigger part in the swinging direction,

The other side wall of the triggering part in the swinging direction corresponds to the contact of the micro switch,

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

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 structure is arranged on the side wall of the short lock tongue, which is back to the long lock tongue, the guiding part is connected with the extending end of the short 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 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 double-end swing arm part is rotatably supported on the mounting part, the driving matching part extends to the radial outer side of the lock pin,

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

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.

wherein the circumferential surface of the stopper has a first engagement portion, the circumferential surface of the latch hook has a second engagement portion,

The first meshing part is selectively meshed with different positions of the second meshing part, and after the first meshing part and the second meshing part are meshed, a blocking is formed in the direction of the rotation of the lock hook along the unlocking direction,

The first engagement portion includes a first tooth portion, the second engagement portion includes three consecutive second tooth portions,

When the first tooth part is meshed with the second tooth parts at the two ends, the lock pin is buckled with or separated from the lock groove; when the first tooth portion is engaged with the second tooth portion in the middle, the lock pin is engaged with the lock groove portion.

The present invention provides a gangway door assembly having features including:

Gangway ladder door;

a door frame; and

The lock for the gangway ladder door,

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 assembly, which are related by the invention, the gangway door assembly comprises a gangway door, a door frame, a 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 double-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 short lock tongue is in driving fit with the second swinging end of the double-head swing arm part, the double-head swing arm part is driven to gradually rotate from the first triggering position to the 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 double-head swing arm part 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;

In the gradual opening process of the gangway door 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 rotating process, meanwhile, the short lock tongue is separated from the second swinging end of the double-head swinging arm part, the double-head swinging 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 double-head swinging 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 of the gangway door, the safety hidden danger in the flying process is eliminated, the safety in use is guaranteed, and the micro switch is triggered through the driving matching of the short lock tongue and the double-head swinging arm part, and the collision of the long lock tongue and the double-head swinging arm part in the closing process of the gangway door due to installation errors can be effectively prevented.

Drawings

FIG. 1 is a schematic perspective view of a gangway door assembly 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 dual-headed swing arm member in its first trigger position in accordance with the present invention;

FIG. 4 is a schematic view of the structure of the dual-headed swing arm member in its second trigger position in accordance with 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 double-headed swing arm member in accordance with 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 assembly 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; short tongue 122b; a drive structure 221; a guide 221a; a driving section 221b; 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 double-headed swing arm member 132; a trigger 132a; a drive engagement portion 132b; an elastic member 133;

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 of the present invention easy to understand, the present invention will be specifically described with reference to the following embodiments and the accompanying drawings.

The embodiment provides a gangway door lock and a gangway door assembly, which enable a crew member to accurately and intuitively unlock and unlock the gangway door.

Fig. 1 is a schematic perspective view of a gangway door assembly according to an embodiment of the present invention.

As shown in fig. 1, the gangway door assembly 100a of the present embodiment includes a gangway door (not shown), a door frame (not shown), a gangway door lock 10, an inner unlocking component 20, and an outer unlocking component 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 dual-headed swing arm member in its first trigger position in accordance with the present invention; fig. 4 is a schematic structural view of the double-headed swing arm member in its second trigger position in accordance with an 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 double-head swing arm 132 and an elastic member 133. The micro switch 131 is provided on the lock base 111. The double-headed swing arm member 132 is rotatably disposed on the lock base 111 and is rotatable between a first trigger position and a second trigger position. When the double-head swing arm member 132 is at the first trigger position, the first swing end of the double-head swing arm member 132 presses the contact of the micro switch 131 to be in a closed state; when in the second triggering position, the first swinging end of the double-head swinging arm piece 132 is separated from the contact of the micro switch 131 to be in an open state. An elastic member 133 is provided on the lock base 111 for causing the double-headed swing arm member 132 to 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 short latch tongue 122b is in driving fit with the second swinging end of the double-ended swing arm member 132, and drives the double-ended 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 double-ended swing arm member 132 rotates to the second triggering position, so that the state of the micro switch 131 is changed, thereby triggering the micro switch 131 to send a signal to prompt that the gangway door lock 10 is in the 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 lock groove 122c in the rotating process, meanwhile, the short lock tongue 122b is separated from the second swinging end of the double-head swing arm member 132, the double-head swing arm member 132 rotates from the second triggering position to the first triggering position under the action of the elastic member 133, when the gangway door is opened to a certain angle, the lock pin 112 is completely separated from the lock groove 122c, meanwhile, the double-head swing arm member 132 rotates to the first triggering position, so that the state of the micro switch 131 is changed, the micro switch 131 is triggered to enable the micro switch 131 to send a signal to prompt the gangway door lock 10 to be in the unlocking state, and therefore, a crew can accurately and intuitively unlock the locking and unlocking state of the gangway door, so that the safety hidden danger in the flying process is eliminated, and the micro switch 131 is triggered through the driving cooperation of the short lock tongue 122b and the double-head swing arm member 132, and the long lock tongue 132 a in the closing process caused by installation errors can be effectively prevented.

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 double-headed swing arm member 132 is a lever member, the middle portion of which forms a rotational support with the lock base 111. The first swing end of the double-headed swing arm member 132 is provided with a trigger portion 132a for pressing the contact of the micro switch 131. The second swing end of the double-headed swing arm member 132 is provided with a drive engagement portion 132b for driving engagement with the short tongue 122 b.

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 132b of the second swing end on the double-end swing arm member 132, so as to drive the double-end swing arm member 132 to rotate from the first triggering position to the second triggering position, thereby enabling the triggering portion 132a of the first swing end on the double-end swing arm member 132 to be separated from the contact of the micro switch 131 to be in an off state, and further realizing the change of the state of the micro switch 131.

In the present embodiment, the double-headed swing arm member 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 the double-headed swing arm member 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 short latch 122b is provided with a driving structure 221 for driving engagement with the driving engagement portion 132b, and includes a guide portion 221a and a driving portion 221b disposed adjacent to each other, the guide portion 221a is for guiding the driving engagement portion 132b to be driving engaged with the driving portion 221b, and the driving portion 221b is for driving engaged with the driving engagement portion 132 b.

As can be appreciated, when the latch hook 122 rotates along the locking direction, the driving engagement portion 132b is first in abutting engagement with the guiding portion 221a, and then in abutting engagement with the driving engagement portion 132b under the action of the guiding portion 221a, so as to drive the dual-head swing arm member 132 to rotate from the first triggering position to the second triggering position.

Fig. 7 is a schematic perspective view of a double-headed swing arm member in accordance with an embodiment of the present invention.

As shown in fig. 6 and 7, the driving portion 221b and the driving engagement portion 132b are each a convex arc surface, and the guide portion 221a is a slope.

As can be appreciated, when the latch hook 122 rotates in the locking direction, the driving engagement portion 132b is first engaged with the guiding portion 221a in an abutting manner, and then the driving engagement portion 132b is gradually engaged with the driving portion 221b in an abutting manner during the continued rotation of the latch hook 122, since the driving portion 221b is a convex arc surface, so that the double-end swing arm 132 can be pushed to rotate towards the second triggering position in the matching process, when the driving matching part 132b is abutted against the outer convex position of the driving part 221b, the double-end swing arm 132 rotates to the second triggering position at this time, the guiding part 221a plays a transitional role in the matching process, and the driving matching part 132b is guided to be abutted against the driving part 221 b.

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 elastic member 133 is a compression spring, and one end thereof abuts against the lock base 111 and the other end abuts against one side wall of the trigger portion 132a in the swinging direction. The other side wall in the swing direction of the trigger portion 132a corresponds to the contact of the micro switch 131. In the unlocked state, the double-headed swing arm member 132 is held in the first trigger position by the elastic member 133.

As can be appreciated, when the driving structure 221 is in driving engagement with the driving engagement portion 132b, the driving dual-head swing arm member 132 rotates from the first triggering position to the second triggering position, during which the elastic member 133 gradually accumulates force; when the driving structure 221 is disengaged from the driving mating portion 132b, the double-headed swing arm member 132 rotates from the second trigger position to the first trigger position under the reset action of the elastic member 133, and the trigger portion 132a on the double-headed swing arm member 132 presses the contact of the micro switch 131.

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 structure 221 is disposed on the side wall of the short latch 122b facing away from the long latch 122a, and the guiding portion 221a is connected to the extending end of the short latch 122 b.

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 tongue 122a facing the short latch tongue 122b to rotate the latch hook 122 in the latching direction, so that the dual-head swing arm member 132 can be pushed to rotate to the second triggering position by the driving structure 221 during the rotation of the latch hook 122.

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 double-headed swing arm member 132 is rotatably supported on the mounting portion 111a, and the drive engagement portion 132b extends to the radially outer side of the lock pin 112. A gap is formed between the driving engagement portion 132b and the lock pin 112 for the short lock tongue 122b to extend into, so that the driving structure 221 is in driving engagement with the driving engagement portion 132 b.

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

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 assembly, the gangway door assembly comprises a gangway door, a door frame, a 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 double-head swing arm piece and an elastic piece, 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 pin to be gradually buckled with the lock groove in the locking direction, and the short lock tongue is driven to be matched with a second swinging end of the double-head swing arm piece in the rotating process, and the double-head swing arm piece is driven to gradually rotate from a first triggering position to a second triggering position, when the gangway door is completely closed, a micro switch is completely buckled with the lock groove is completely, a locking state is triggered by the lock hook is enabled to be in the locking state, and a micro switch is simultaneously triggered by the micro switch, and a locking state is in the locking state triggered by the locking state;

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. The utility model provides a gangway ladder door tool to lock, sets up on gangway ladder door and door frame thereof for locking or unblock the gangway ladder door, its characterized in that includes:

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 double-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 double-head swing arm (132) is in the first triggering position, the first swing end of the double-head swing arm (132) presses the contact of the micro switch (131) to be in a closed state, and when the double-head swing arm (132) is in the second triggering position, the first swing end of the double-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 double-headed 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 short lock tongue (122 b) is in driving fit with the second swinging end of the double-head swing arm part (132), and the double-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 short lock tongue (122 b) is separated from the second swinging end of the double-head swing arm part (132), and the double-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 double-end swing arm part (132) is a rod part, the middle part of the double-end swing arm part and the lock seat (111) form a rotary support,

A trigger part (132 a) is arranged at the first swinging end of the double-head swinging arm part (132) and is used for extruding the contact of the micro switch (131),

The second swing end of the double-head swing arm piece (132) is provided with a driving matching part (132 b) which is used for being matched with the short lock tongue (122 b) in a driving mode.

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

Wherein the short lock tongue (122 b) is provided with a driving structure (221) which is used for driving and matching with the driving matching part (132 b) and comprises a guiding part (221 a) and a driving part (221 b) which are adjacently arranged,

The guiding part (221 a) is used for guiding the driving matching part (132 b) to be in driving matching with the driving part (221 b), the driving part (221 b) is used for being in driving matching with the driving matching part (132 b),

When the latch hook (122) rotates along the locking direction, the driving matching part (132 b) is in abutting matching with the guide part (221 a) firstly, and then is in abutting matching with the driving matching part (132 b) under the action of the guide part (221 a), so that the double-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 part (221 b) and the driving matching part (132 b) are both convex cambered surfaces, and the guiding part (221 a) is an inclined surface.

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

wherein the elastic member (133) is a compression spring, one end of the elastic member is abutted against the lock base (111), the other end is abutted against one side wall of the trigger part (132 a) in the swinging direction,

The other side wall of the triggering part (132 a) in the swinging direction corresponds to the contact of the micro switch (131),

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

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

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.

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

Wherein the lock base (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 double-headed swing arm member (132) is rotatably supported on the mounting portion (111 a), the drive engagement portion (132 b) extends to the radially outer side of the lock pin (112),

A gap into which the short lock tongue (122 b) extends is formed between the drive fitting portion (132 b) and the lock pin (112), so that the drive structure (221) is in drive fit with the drive fitting portion (132 b).

8. 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).

9. The gangway door lock of claim 8, wherein:

wherein the circumferential surface of the stopper (124) has a first engagement portion (124 a), the circumferential surface of the latch hook (122) has a second engagement portion (122 d),

The first engagement portion (124 a) is selectively engaged with a different position of the second engagement portion (122 d) to form a stop in a direction in which the latch hook (122) rotates in the unlocking direction after engagement,

The first engagement portion (124 a) includes a first tooth portion (241 a), the second engagement portion (122 d) includes three consecutive second tooth portions (221 d),

When the first tooth part (241 a) is meshed with the second tooth parts (221 d) at two ends, the lock pin (112) is buckled with or separated from the locking groove (122 c); when the first tooth portion (241 a) is engaged with the second tooth portion (221 d) in the middle, the lock pin (112) is partially engaged with the lock groove (122 c).

10. A gangway door assembly, comprising:

Gangway ladder door;

a door frame; and

A gangway ladder door lock (10),

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