CN114873420A

CN114873420A - Elevator landing door unlocking device and elevator landing door

Info

Publication number: CN114873420A
Application number: CN202210578787.4A
Authority: CN
Inventors: 霍俊超; 肖永恒; 丁建波
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-08-09

Abstract

The invention relates to an elevator landing door unlocking device and an elevator landing door. The elevator landing door unlocking device comprises a landing door lock assembly, a triangular lock assembly, an unlocking deflector rod and a lock rod baffle seat. The triangular lock assembly comprises a lock body and a lock shaft which is rotatably connected with the lock body, and the lock shaft can rotate around the axial direction of the lock body relative to the lock body. The lock rod stop seat is connected with the lock shaft and can synchronously rotate along with the lock shaft. One end of the unlocking deflector rod is connected to the landing door lock hook, the other end of the unlocking deflector rod extends to the rotating path of the locking rod baffle seat, and the locking rod baffle seat can be in abutting fit with the unlocking deflector rod when rotating to drive the unlocking deflector rod to rotate so as to enable the landing door lock hook to rotate and open. So, avoid the unblock portion to deviate from the driving lever place scope of unblanking at the in-process of unblanking, guarantee that the layer door can unblank smoothly, reduce the degree of difficulty of unblanking, locking lever keeps off the seat simultaneously and can play the effect of keeping out the wind to the driving lever of unblanking, avoids unblanking the driving lever and forms layer door lock subassembly unlocking torque under the effect that the operation in-process produced perpendicular wind pressure about the car, causes layer door lock subassembly snap-off and leads to the elevator scram.

Description

Elevator landing door unlocking device and elevator landing door

Technical Field

The invention relates to the technical field of elevators, in particular to an elevator landing door unlocking device and an elevator landing door.

Background

The elevator landing door unlocking device is generally arranged on a door plate or a door pocket cross beam, when people outside a hall need to open the elevator landing door, a triangular key is rotated, and the elevator landing door is driven to be opened through the structures such as a shifting sheet and a steel wire rope connection.

For the shifting piece type unlocking mode, the shifting piece is driven by the rotation of the triangular lock core, and the shifting piece drives the shifting rod which is just connected with the landing door lock hook to rotate, so that the landing door lock is opened. However, as the height of the landing door increases, the longer the length of the shift lever is, and when the landing door is unlocked, when the rotation angle of the shift piece and the shift lever increases to a certain degree, the risk of separation of the lock lever from the lock seat is easily generated, which causes the unlocking failure.

For the steel wire rope unlocking mode, along with the increase of the unlocking times, the steel wire rope can generate fatigue, and when the steel wire rope reaches the service life times, the steel wire rope has the risk of breakage, so that the unlocking failure is caused.

Disclosure of Invention

Based on this, it is necessary to provide an elevator layer door unlocking device and elevator layer door, guarantees that the layer door can unblank smoothly, reduces the degree of difficulty of unblanking.

An elevator landing door unlocking apparatus, comprising:

the landing door lock assembly comprises a landing door lock hook which is used for being rotatably arranged on a landing door hanging plate;

the triangular lock assembly comprises a lock body and a lock shaft which is rotatably connected with the lock body, and the lock shaft can rotate around the axial direction of the lock shaft relative to the lock body;

the lock comprises an unlocking deflector rod and a lock rod baffle seat, wherein the lock rod baffle seat is connected to the lock shaft and can synchronously rotate along with the lock shaft; one end of the unlocking deflector rod is connected to the landing door lock hook, the other end of the unlocking deflector rod extends to the rotating path of the locking rod baffle seat, and the locking rod baffle seat can be in interference fit with the unlocking deflector rod when the locking rod baffle seat rotates to drive the unlocking deflector rod to rotate so as to enable the landing door lock hook to rotate and open.

In one embodiment, an unlocking part is arranged on one side, facing the unlocking shift lever, of the locking lever stop seat, one end, far away from the layer door locking hook, of the unlocking shift lever extends to a rotating path of the unlocking part, and the unlocking part can be in interference fit with the unlocking shift lever when the locking lever stop seat rotates; the unlocking part comprises an unlocking column which is convexly arranged on one side of the locking rod baffle seat facing the unlocking shift rod.

In one embodiment, the connecting position of the lock rod baffle seat and the lock shaft and the unlocking part are both positioned on a symmetry axis of the lock rod baffle seat.

In one embodiment, the unlocking driving lever comprises a first driving lever section and a second driving lever section, one end of the first driving lever section is connected to the landing door lock hook, the other end of the first driving lever section extends to the rotation path of the locking lever stopper seat, and the second driving lever section is transversely connected to one end of the first driving lever section, which is far away from the landing door lock hook.

In one embodiment, the elevator landing door unlocking device further comprises a base, the base is connected to the lock body, the base is provided with a limiting portion, the limiting portion extends from one side of the base opposite to the rotation direction of the locking rod baffle seat towards one side of the locking rod baffle seat, and the limiting portion is used for being in interference fit with the side portion of the locking rod baffle seat when the locking rod baffle seat is reset.

In one embodiment, the base comprises a first seat plate, a first connecting plate and a second seat plate, the first seat plate is used for being attached to the inner side of the laminated door panel and connected with the lock body, the second seat plate is arranged in a staggered mode with respect to the first seat plate, the second seat plate is arranged close to the laminated door lock assembly relative to the first seat plate, and two sides of the first connecting plate are respectively connected with the first seat plate and the second seat plate; the limiting part extends from one side of the second seat plate opposite to the rotation direction of the lock rod baffle seat to one side of the lock rod baffle seat.

In one embodiment, the locking rod stopper seat includes a third seat plate, a second connecting plate, and a fourth seat plate, the third seat plate is disposed opposite to the first seat plate and connected to the lock body, the fourth seat plate is disposed on a side of the second seat plate away from the first seat plate and disposed opposite to the second seat plate, one side of the second connecting plate is connected to the third seat plate, the other side of the second connecting plate is connected to the fourth seat plate, and an unlocking portion is disposed on a side of the fourth seat plate facing the base.

In one of them embodiment, elevator layer door unlocking means still includes piece and base that resets, the base connect in the lock body, the one end that resets connect in the base, the other end connect in the locking lever keeps off the seat, the piece that resets is used for driving when the layer latch hook is closed the locking lever keeps off the seat and resets.

In one embodiment, an unlocking part is arranged on one side, facing the unlocking shift lever, of the locking lever stop seat, and one end, far away from the landing door locking hook, of the unlocking shift lever extends to a rotating path of the unlocking part; the elevator landing door unlocking device further comprises a first mounting piece and a second mounting piece, the first mounting piece extends from the base to one side, away from the unlocking part, of the locking rod baffle seat, and the second mounting piece is arranged on one side, away from the unlocking part, of the locking rod baffle seat; the reset piece is arranged on one side, deviating from the unlocking part, of the lock rod baffle seat, one end of the reset piece is arranged on the first mounting piece, and the other end of the reset piece is arranged on the second mounting piece.

The elevator landing door comprises the elevator landing door unlocking device, and the elevator landing door unlocking device is used for being arranged in a door knife area.

Foretell elevator layer door unlocking means and elevator layer door sets up the locking lever on the lock shaft and keeps off the seat, and the one end of unblanking driving lever is connected in layer door latch hook, and the other end extends to the locking lever and keeps off on the rotation route of seat. When the landing door is unlocked, the triangular key is inserted into the lock body, the triangular key is rotated, the triangular key drives the lock shaft to rotate around the axial direction of the lock shaft relative to the lock body, and then the locking rod blocking seat is driven to rotate, so that the locking rod blocking seat is abutted to the unlocking driving lever. Then, the triangular key is continuously rotated to drive the locking rod stop seat to continuously rotate, and the unlocking deflector rod drives the landing door lock hook to lift up under the action of the locking rod stop seat, so that the landing door is unlocked. Therefore, compared with a shifting piece unlocking mode, the locking rod baffle seat is arranged on the lock shaft of the triangular lock assembly, and the unlocking shifting rod is driven to rotate by the locking rod baffle seat to realize the unlocking of the layer door, so that the locking rod baffle seat can be prevented from falling out of the range of the unlocking shifting rod in the unlocking process, the layer door can be ensured to be smoothly unlocked, and the unlocking difficulty is reduced; simultaneously, locking lever fender seat can play the effect that keeps out the wind to the driving lever of unblanking, avoids unblanking the driving lever and forms layer door lock subassembly unlocking torque under the effect that the car moves the in-process from top to bottom and produces perpendicular wind pressure, causes layer door lock subassembly snap-off and leads to the elevator scram. In addition, at the high-speed in-process of operation of elevator, the driving lever of unblanking etc. can not rock, guarantees elevator layer door unlocking device's stability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an elevator landing door in a locked state according to an embodiment of the present invention;

fig. 2 is a schematic view of the elevator landing door of fig. 1 in an unlocked state;

fig. 3 is a schematic structural view of an elevator landing door unlocking apparatus according to an embodiment of the present invention;

fig. 4 is a side view of the elevator landing door unlocking apparatus shown in fig. 3;

FIG. 5 is an enlarged partial view of FIG. 4 at A;

fig. 6 is a schematic view illustrating a triangular lock assembly of the elevator landing door unlocking apparatus shown in fig. 3.

The reference numbers illustrate: 10. a landing door lock assembly; 11. a landing door latch hook; 20. a triangular lock assembly; 21. a lock body; 22. a lock shaft; 23. a first nut; 24. a first gasket; 25. a split washer; 26. a second nut; 27. a second gasket; 30. a base; 31. a first seat plate; 32. a first connecting plate; 33. a second seat plate; 331. a limiting part; 332. a first mounting member; 40. unlocking a deflector rod; 41. a first toggle lever section; 42. a second toggle lever section; 50. a lock bar stop seat; 51. a third seat plate; 52. a second connecting plate; 53. a fourth seat plate; 531. an unlocking portion; 532. a second mount; 60. a reset member; 70. a door vane.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, 3, 4 and 5, an elevator landing door opening lock device according to an embodiment of the present invention includes a landing door lock assembly 10, a triangular lock assembly 20, an unlocking lever 40 and a locking lever seat 50. The landing door lock assembly 10 comprises a landing door lock hook 11, and the landing door lock hook 11 is used for being rotatably mounted on the landing door hanging plate. The triangular lock assembly 20 includes a lock body 21 and a lock shaft 22 rotatably connected to the lock body 21, and the lock shaft 22 is capable of rotating relative to the lock body 21 about the lock shaft 22 in the axial direction. The locking bar stock 50 is connected to the lock shaft 22 and can rotate synchronously with the lock shaft 22. One end of the unlocking deflector rod 40 is connected to the landing door latch hook 11, and the other end extends to the rotation path of the locking rod stopper seat 50, and the locking rod stopper seat 50 can be in interference fit with the unlocking deflector rod 40 when rotating, so as to drive the unlocking deflector rod 40 to rotate to open the landing door latch hook 11.

Optionally, the triangular lock assembly 20 further comprises a split washer 25, the split washer 25 being disposed between the lock body 21 and the lock shaft 22. By providing the snap ring 25, the lock shaft 22 can be rotated relative to the lock body 21 without separating the lock shaft 22 from the lock body 21.

Optionally, the landing door lock assembly 10 further includes a landing door lock static wheel and a landing door lock movable wheel, and the landing door lock movable wheel is fixed to the landing door lock hook 11. When the landing door is unlocked, the triangular key is inserted into the lock body 21, and when the triangular key is rotated, the triangular key drives the lock shaft 22 to rotate around the axial direction of the lock shaft 22 relative to the lock body 21, so as to drive the lock rod stopper seat 50 to rotate synchronously. In the process of rotating the locking bar block seat 50, the locking bar block seat 50 is in interference fit with the unlocking deflector rod 40 to drive the unlocking deflector rod 40 to rotate, so that the landing door lock hook 11 and the landing door lock rotating wheel rotate. When the layer door lock movable wheel is extruded to be close to the layer door lock fixed wheel, the layer door lock hook 11 is gradually lifted up, and the layer door is unlocked.

In the above-mentioned elevator landing door unlocking device, the locking bar stopper 50 is disposed on the lock shaft 22, one end of the unlocking shift lever 40 is connected to the landing door locking hook 11, and the other end extends to the rotation path of the locking bar stopper 50. When the landing door is unlocked, the triangular key is inserted into the lock body 21, and is rotated to drive the lock shaft 22 to rotate around the axial direction of the lock shaft 22 relative to the lock body 21, so as to drive the locking rod stop seat 50 to rotate, and the locking rod stop seat 50 is abutted to the unlocking shift lever 40. Then, the triangular key is continuously rotated to drive the locking rod stopper seat 50 to continuously rotate, and the unlocking deflector rod 40 drives the landing door lock hook 11 to lift up under the action of the locking rod stopper seat 50, so that the landing door is unlocked. Therefore, compared with a shifting block unlocking mode, in the embodiment, the locking rod baffle seat 50 is arranged on the lock shaft 22 of the triangular lock assembly 20, and the unlocking shifting rod 40 is driven to rotate by the locking rod baffle seat 50 to realize the unlocking of the layer door, so that the locking rod baffle seat 50 can be prevented from falling out of the range of the unlocking shifting rod 40 in the unlocking process, the smooth unlocking of the layer door can be ensured, and the unlocking difficulty is reduced; meanwhile, the locking rod baffle seat 50 can play a role in blocking wind for the unlocking driving rod 40, and the phenomenon that the unlocking driving rod 40 forms unlocking torque of the layer door lock assembly 10 under the action of vertical wind pressure generated in the up-and-down running process of the car, so that the layer door lock assembly 10 is momentarily broken to cause sudden stop of the elevator is avoided. In addition, in the process of high-speed operation of the elevator, the unlocking deflector rod 40 and the like cannot shake, and the stability of the elevator landing door unlocking device is ensured.

After the unlocking action is finished, the landing door lock hook 11 is pressed downwards under the action of gravity to drive the unlocking deflector rod 40 to rotate reversely, the unlocking deflector rod 40 is abutted against the locking rod baffle seat 50 to drive the locking rod baffle seat 50 to rotate reversely, and the locking rod baffle seat 50 is reset. Of course, the reset of the locking bar stock 50 may be accomplished by other auxiliary means.

In one embodiment, a side of locking bar holder 50 facing unlocking lever 40 is provided with an unlocking portion 51, and a side of unlocking lever 40 facing away from layer door lock assembly 10 extends into the path of rotation of unlocking portion 51. When the landing door is unlocked, the triangular key is rotated, and the triangular key drives the lock shaft 22 to rotate, so as to drive the locking bar stopper seat 50 to rotate, so that the unlocking part 51 is abutted against the unlocking shift lever 40. Then, the triangular key is continuously rotated to drive the locking bar stopper seat 50 to continuously rotate, and the unlocking shift lever 40 drives the landing door lock hook 11 to lift up under the action of the unlocking part 51, so that the landing door is unlocked.

It should be noted that, referring to fig. 3, when the landing door locking hook 11 is closed, the unlocking shift lever 40 and the unlocking portion 531 are at a certain distance in the horizontal direction, that is, when the landing door is unlocked, the unlocking portion 531 will abut against the unlocking shift lever 40 only after the locking lever stopper 50 rotates a certain angle. Thus, it is possible to prevent the unlocking lever 40 from touching the unlocking portion 531 to generate noise and increase vibration energy when the landing door lock is subjected to external impact or wind pressure vibration.

Further, referring to fig. 4 and 5, the unlocking portion 531 includes an unlocking post that is protruded on a side of the locking lever stopper 50 facing the unlocking lever 40.

In one embodiment, referring to fig. 3, the connection position of the locking lever stop 50 and the locking shaft 22 and the unlocking portion 531 are disposed on the symmetry axis of the locking lever stop 50. For convenience of understanding, S is used to denote the symmetry axis. Therefore, in the process of unlocking the landing door, the twisting force required by rotating the triangular key can be reduced, and the stability of the elevator landing door unlocking device is improved.

In one embodiment, referring to fig. 3, 4 and 5, the elevator landing door unlocking apparatus further includes a base 30, and the base 30 is coupled to the lock body 21. The base 30 is provided with a limiting portion 331, the limiting portion 331 extends from one side of the base 30 opposite to the rotation direction of the locking rod baffle seat 50 to one side of the locking rod baffle seat 50, and the limiting portion 331 is used for being in interference fit with the side portion of the locking rod baffle seat 50 when the locking rod baffle seat 50 is reset. So, be equipped with spacing portion 331 on the opposite side of base 30 and locking lever fender seat 50 direction of rotation, when locking lever fender seat 50 resets, spacing portion 331 and locking lever fender seat 50 conflict cooperation, can guarantee like this that unlocking portion 531 can not touch the driving lever 40 of unblanking and additionally produce unlocking torque when the layer door receives the vibration.

Optionally, the limiting portion 331 is a limiting bent edge, and the limiting bent edge is bent from a side of the base 30 opposite to the rotation direction of the lock rod stop seat 50 toward a side of the lock rod stop seat 50. Of course, in other embodiments, the position-limiting portion 331 includes a position-limiting plate, and the position-limiting plate can be fixed on the side of the base 30 opposite to the rotation direction of the locking bar seat 50 by welding or the like.

Further, referring to fig. 4 and 5, the base 30 includes a first seat plate 31, a first connection plate 32, and a second seat plate 33. The first seat plate 31 is used for attaching the inner side of the laminated door panel and is connected with the lock body 21. The second seat plate 33 is offset from the first seat plate 31 and the second seat plate 33 is disposed adjacent the layer latch assembly 10 relative to the first seat plate 31. Both sides of the first connection plate 32 are connected to the first seat plate 31 and the second seat plate 33, respectively. The stopper 331 extends from the side of the second seat plate 33 opposite to the rotation direction of the lock bar holder 50 toward the side of the lock bar holder 50. Thus, the base 30 can be mounted on the lock body 21 of the triangular lock assembly 20, and the limiting portion 331 of the base 30 can be in interference fit with the side portion of the locking rod stopper seat 50 when the locking rod stopper seat 50 is reset.

Specifically, referring to fig. 4, 5 and 6, the first seat plate 31 is provided with a first through hole adapted to the lock body 21, and the base 30 is sleeved on the lock body 21 through the first through hole. The triangular lock assembly 20 further includes a first nut 23, and the first nut 23 is sleeved on the lock body 21 and screwed with the thread on the surface of the lock body 21, so as to fix the base 30 to the lock body 21. Specifically, the triangular lock assembly 20 further includes a first washer 24, and the first washer 24 is sleeved on the lock body 21 and located between the first nut 23 and the first seat plate 31.

In one embodiment, referring to fig. 4 and 5, the locking bar stock 50 includes a third stock plate 51, a second connecting plate 52, and a fourth stock plate 53. The third seat plate 51 is disposed opposite to the first seat plate 31 and is coupled to the lock body 21. The fourth seat plate 53 is disposed on a side of the second seat plate 33 away from the first seat plate 31, and is disposed opposite to the second seat plate 33. The second connecting plate 52 has one side connected to the third seat plate 51 and the other side connected to the fourth seat plate 53. The unlocking portion 531 is provided on the side of the fourth seat plate 53 facing the base 30. Thus, the locking lever stopper 50 can be securely mounted to the lock shaft 22 of the triangular lock assembly 20, and the unlocking lever 40 can be securely engaged with the unlocking part 531.

Further, referring to fig. 4, 5 and 6, the third seat plate 51 is provided with a second through hole, and the locking bar stopper seat 50 is sleeved on the locking shaft 22 through the second through hole. The triangular lock assembly 20 further includes a second nut 26, the second nut 26 is sleeved on the lock shaft 22 and fixes the lock bar stop 50 to the lock shaft 22. The triangular lock assembly 20 further comprises a second washer 27, the second washer 27 being disposed between the third panel 51 and the second nut 26.

In one embodiment, referring to fig. 3, 4 and 5, the elevator landing door unlocking apparatus further includes a restoring member 60. One end of the reset member 60 is connected to the base 30, and the other end is connected to the locking bar stopper seat 50, and the reset member 60 is used for driving the locking bar stopper seat 50 to reset when the landing door locking hook 11 is closed. Optionally, restoring member 60 is an elastic member. When the locking bar stopper 50 is rotated to unlock the landing door latch hook 11, the reset member 60 is in a stretched state. After the unlocking action is finished, the locking lever stopper seat 50 is reversely rotated by the pulling of the reset member 60, so that the locking lever stopper seat 50 is reset.

It should be noted that even if the reset element 60 falls off or fails due to breakage, and the lock lever stopper seat 50 is biased to the left so that the unlocking portion 531 abuts against the unlocking shift lever 40, the unlocking torque formed by the lock lever stopper seat 50 can be overcome by the self-locking torque of the landing door lock assembly 10 and the locking torque formed by the unlocking shift lever 40, thereby ensuring that the landing door lock hook 11 does not lift.

It should be noted that, even if the reset member 60 falls off or fails due to breakage, when the landing door is locked, the unlocking shift lever 40 can be driven by the landing door locking hook 11 to abut against the unlocking portion 531, so that the locking lever stopper seat 50 is reset to the initial position.

Further, referring to fig. 3, 4 and 5, the elevator landing door unlocking apparatus further includes a first mounting member 332 and a second mounting member 532. The first mounting member 332 extends from the base 30 to a side of the locking bar stock 50 facing away from the lock portion 531, and the second mounting member 532 is disposed on a side of the locking bar stock 50 facing away from the lock portion 531. Specifically, the first mounting member 332 extends from the second seat plate 33 to a side of the locking bar seat 50 away from the locking portion 531, and the second mounting member 532 is disposed on a side of the fourth seat plate 53 away from the unlocking portion 531; wherein the length of the first mount 332 is greater than the length of the second mount 532. The reset member 60 is disposed on a side of the lock bar holder 50 opposite to the unlocking portion 531, one end of the reset member 60 is disposed on the first mounting member 332, and the other end is disposed on the second mounting member 532. Thus, the reset piece 60 and the unlocking part 531 are respectively positioned at two sides of the lock bar blocking seat 50, so that the distance between the base 30 and the lock bar blocking seat 50 can be reduced, and the space occupied by the elevator landing door unlocking device is reduced.

Specifically, referring to FIG. 3, second mounting member 532 is positioned on an axis of symmetry of locking bar holder 50.

In one embodiment, referring to fig. 3, the unlatching lever 40 includes a first lever section 41 and a second lever section 42. One end of the first toggle lever segment 41 is connected to the landing door latch hook 11, and the other end extends to the height position of the latch lever stopper seat 50. The second toggle lever segment 42 is transversely connected to an end of the first toggle lever segment 41 remote from the landing door latch hook 11. Specifically, the extending direction of the first dial rod segment 41 intersects the extending direction of the second dial rod segment 42, for example, the first dial rod segment 41 and the second dial rod segment 42 are connected to form an L shape. When layer door lock subassembly 10 is in under the complete open mode, layer door lock driving wheel is tangent with layer door lock quiet wheel, and layer door lock driving wheel is inconsistent with layer door lock quiet wheel promptly, and layer door latch hook 11 reaches extreme position, and the driving lever 40 of unblanking can not continue the motion, and the hookup location through first driving lever section 41 and second driving lever section 42 is to the conflict of unblock portion 531, realizes keeping off the spacing of seat 50 to the locking lever, prevents that the too big piece 60 that leads to restoring to the throne of rotation angle that locking lever kept off seat 50 from being drawn excessively and damaging.

Specifically, referring to fig. 3, the connection position of the unlocking lever 40 and the landing door locking hook 11 is outside the area of the door knife 70, and the first lever segment 41 is located in the area inside the door knife 70, and the center of the unlocking lever 40 is far away from the axis of the landing door locking hook 11, so as to ensure the locking force of the landing door lock assembly. The unlocking deflector rod 40 does not protrude out of the landing door lock driving wheel and the landing door lock static wheel in the depth direction, so that the elevator landing door unlocking device is prevented from being damaged due to the fact that the car door part impacts the landing door unlocking device when the elevator runs.

Referring to fig. 1 and 2, an elevator landing door according to an embodiment of the present invention includes the elevator landing door unlocking apparatus according to any one of the above embodiments.

In the elevator landing door, the locking bar stopper 50 is disposed on the locking shaft 22, and one end of the unlocking shift lever 40 is connected to the landing door locking hook 11, and the other end extends to the rotation path of the locking bar stopper 50. When the landing door is unlocked, the triangular key is inserted into the lock body 21, and the triangular key is rotated to drive the lock shaft 22 to rotate around the axial direction of the lock shaft 22 relative to the lock body 21, so as to drive the locking rod stop seat 50 to rotate, so that the locking rod stop seat 50 is abutted to the unlocking shift lever 40. Then, the triangular key is continuously rotated to drive the locking rod stopper seat 50 to continuously rotate, and the unlocking deflector rod 40 drives the landing door lock hook 11 to lift up under the action of the locking rod stopper seat 50, so that the landing door is unlocked. Therefore, compared with a shifting block unlocking mode, in the embodiment, the locking rod baffle seat 50 is arranged on the lock shaft 22 of the triangular lock assembly 20, and the unlocking shifting rod 40 is driven to rotate by the locking rod baffle seat 50 to realize the unlocking of the layer door, so that the locking rod baffle seat 50 can be prevented from falling out of the range of the unlocking shifting rod 40 in the unlocking process, the smooth unlocking of the layer door can be ensured, and the unlocking difficulty is reduced; meanwhile, the locking rod baffle seat 50 can play a role in blocking wind for the unlocking driving rod 40, and the phenomenon that the unlocking driving rod 40 forms unlocking torque of the layer door lock assembly 10 under the action of vertical wind pressure generated in the up-and-down running process of the car, so that the layer door lock assembly 10 is momentarily broken to cause sudden stop of the elevator is avoided. In addition, in the process of high-speed operation of the elevator, the unlocking deflector rod 40 and the like cannot shake, and the stability of the elevator landing door unlocking device is ensured.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An elevator landing door unlocking apparatus, comprising:

2. The elevator landing door unlocking device according to claim 1, wherein an unlocking portion is provided on a side of the locking lever stopper facing the unlocking lever, an end of the unlocking lever remote from the landing door locking hook extends to a rotation path of the unlocking portion, and the unlocking portion is capable of being in interference fit with the unlocking lever when the locking lever stopper is rotated; the unlocking part comprises an unlocking column which is convexly arranged on one side of the locking rod baffle seat facing the unlocking shift rod.

3. The elevator landing door opening-locking apparatus according to claim 2, wherein the coupling position of the locking bar holder and the locking shaft and the unlocking part are located on a symmetry axis of the locking bar holder.

4. The elevator landing door lock-opening device according to claim 1, wherein the unlocking lever comprises a first lever segment and a second lever segment, one end of the first lever segment is connected to the landing door lock hook, and the other end extends to a rotation path of the locking bar stopper seat, and the second lever segment is transversely connected to an end of the first lever segment remote from the landing door lock hook.

5. The elevator landing door unlocking device according to claim 1, further comprising a base, wherein the base is connected to the lock body, the base is provided with a limiting portion, the limiting portion extends from one side of the base opposite to the rotation direction of the locking rod baffle seat toward one side of the locking rod baffle seat, and the limiting portion is used for being in interference fit with the side portion of the locking rod baffle seat when the locking rod baffle seat is reset.

6. The elevator landing door unlocking apparatus according to claim 5, wherein the base includes a first seat plate, a first connection plate and a second seat plate, the first seat plate is configured to abut against an inner side of a landing door panel and is connected to the lock body, the second seat plate is configured to be staggered from the first seat plate, the second seat plate is configured to be adjacent to the landing door lock assembly relative to the first seat plate, and both sides of the first connection plate are respectively connected to the first seat plate and the second seat plate; the limiting part extends from one side of the second seat plate opposite to the rotation direction of the lock rod baffle seat to one side of the lock rod baffle seat.

7. The elevator landing door unlocking apparatus according to claim 6, wherein the locking bar stopper seat includes a third seat plate, a second connecting plate, and a fourth seat plate, the third seat plate is disposed opposite to the first seat plate and connected to the lock body, the fourth seat plate is disposed at a side of the second seat plate away from the first seat plate and opposite to the second seat plate, one side of the second connecting plate is connected to the third seat plate, the other side is connected to the fourth seat plate, and an unlocking part is disposed at a side of the fourth seat plate facing the base.

8. The elevator landing door unlocking device according to any one of claims 1 to 7, further comprising a reset member and a base, wherein the base is connected to the lock body, one end of the reset member is connected to the base, the other end of the reset member is connected to the locking bar stopper seat, and the reset member is used for driving the locking bar stopper seat to reset when the landing door locking hook is closed.

9. The elevator landing door unlocking device according to claim 8, wherein an unlocking part is provided on a side of the locking bar holder facing the unlocking lever, and an end of the unlocking lever remote from the landing door locking hook extends to a rotation path of the unlocking part;

the elevator landing door unlocking device further comprises a first mounting piece and a second mounting piece, the first mounting piece extends from the base to one side, away from the unlocking part, of the locking rod baffle seat, and the second mounting piece is arranged on one side, away from the unlocking part, of the locking rod baffle seat; the reset piece is arranged on one side, deviating from the unlocking part, of the lock rod baffle seat, one end of the reset piece is arranged on the first mounting piece, and the other end of the reset piece is arranged on the second mounting piece.

10. An elevator landing door, comprising an elevator landing door unlocking device according to any of claims 1 to 9, for arrangement in the region of a door vane.