CN110498328B - Elevator layer door lock unlocking system and elevator layer door - Google Patents
Elevator layer door lock unlocking system and elevator layer door Download PDFInfo
- Publication number
- CN110498328B CN110498328B CN201810485424.XA CN201810485424A CN110498328B CN 110498328 B CN110498328 B CN 110498328B CN 201810485424 A CN201810485424 A CN 201810485424A CN 110498328 B CN110498328 B CN 110498328B
- Authority
- CN
- China
- Prior art keywords
- unlocking
- lock
- landing door
- assembly
- elevator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
Abstract
The invention discloses an elevator landing door lock unlocking system, which comprises: a landing door assembly, a landing door panel and an electrical system; the panel is provided with two unlocking assemblies, the first unlocking assembly is used for opening the landing door emergently, the second unlocking assembly has a limiting effect on the first unlocking assembly, and the first unlocking assembly can be used for opening the landing door only after the second unlocking assembly acts; the second unlocking assembly is connected with the electrical system, and when the second unlocking assembly acts, the electrical system is disconnected, and the elevator cannot normally run; the second unlocking assembly needs to be reset manually, and the elevator can be recovered to normally run. The method for limiting the first unlocking assembly by the second unlocking assembly avoids the possibility of normal operation of the elevator when maintenance personnel are positioned in the hoistway, and ensures the safety of the maintenance personnel.
Description
Technical Field
The invention belongs to the technical field of elevator manufacturing, and particularly relates to an elevator landing door lock unlocking system. The invention also relates to an elevator landing door.
Background
In recent years, with the economic development of China, the age structure of people changes, and the old people can not meet the access requirements of old people without elevators arranged in the original residential buildings, so that the market of additionally installed elevators is expanded. In the case that the added elevator is always in a condition of small pit depth or small top floor height, when personnel are located in the pit or the car roof for maintenance, the hoistway cannot provide enough danger avoiding space, so that the safety of maintenance personnel in the hoistway can be influenced, and for the condition, the requirement of a safety system is provided for the added elevator by the new elevator manufacturing and installing safety specification GB/T28621 and 2012 installed in the existing building.
Therefore, in order to ensure the safety of the personnel in the hoistway when the pit depth or the top floor height is small, an elevator safety landing system needs to be developed to prevent the normal operation of the elevator when the personnel are in the hoistway.
Disclosure of Invention
The invention aims to provide an elevator safety landing system to ensure the safety of elevator maintenance personnel during maintenance.
In order to solve the technical problem, the invention provides an elevator landing door lock unlocking system, which comprises a first unlocking assembly 21, a first unlocking assembly and a second unlocking assembly, wherein the first unlocking assembly is connected with an elevator landing door lock and used for unlocking the elevator landing door lock; the first unlocking assembly 21 comprises a first rotation center and a first limiting device, the first unlocking assembly 21 has a first initial position and a first final unlocking position, the first unlocking assembly 21 starts to rotate around the first rotation center from the first initial position to the first final unlocking position and stops, and the first limiting device is used for limiting the first initial position and the first final unlocking position; the second unlocking assembly 22 comprises a second rotating center, a second limiting device and an electrical switch assembly; the second unlocking assembly 22 has a second initial position and a second final unlocking position, the second unlocking assembly 22 starts to rotate around a second rotation center from the second initial position to the second final unlocking position and stops, the second limiting device is used for limiting the second initial position and the second final unlocking position, and the electrical switch assembly is switched on only when the second unlocking assembly is located at the second initial position so that the elevator can normally run; the second unlocking assembly 22 further comprises a second unlocking limiting part, when the second unlocking assembly 22 is located at the second initial position, the second unlocking limiting part limits the first unlocking assembly to be kept at the first initial position, and when the second unlocking assembly leaves the second initial position, the first unlocking assembly 21 can rotate relative to the first rotating center to unlock the landing door.
Preferably, first unblock subassembly 21 includes first lock axle 211, first unblock pole 212, first lock core shell 213, first limiting plate 214, first lock core shell 213 is fixed to be set up on the layer door panel of elevator, and first lock core shell 213 fixed connection first limiting plate 214, first lock axle 211 are installed in first lock core shell 213, first unblock subassembly uses first lock axle 211 to rotate as the center, and first lock axle 211 fixed connection first unblock pole 212, first unblock pole 212 comprise at least three arm, and first unblock pole first arm 2121 is connected with the layer door lock device for unblock layer door lock.
Preferably, the second unlocking assembly 22 includes a second lock cylinder 221, a second unlocking lever 222, a second lock cylinder housing 223, a second limit plate 224, a second unlocking lever limit part 225, the second lock cylinder housing 223 is fixedly disposed on the landing door panel of the elevator, the second lock cylinder housing 223 is fixedly connected to the second limit plate 224, the second lock cylinder 221 is mounted in the second lock cylinder housing 223, the second unlocking assembly 22 rotates with the second lock cylinder 221 as a rotation center, the second lock cylinder 221 is fixedly connected to the second unlocking lever 222, the second unlocking lever 222 is composed of at least two arms, an opening communicating device 226 is mounted on the second unlocking lever first arm 2221, and the second unlocking lever second arm top end part is a second unlocking lever limit part 225 for limiting the first unlocking assembly to keep at the first initial position.
Preferably, when the second unlocking assembly is in the second initial position, the center of gravity of the second unlocking lever 222 is located between the second rotation center and the electrical switch 3 in the horizontal direction; when the second unlocking assembly is in the second final unlocking position, the center of gravity of the second unlocking lever 222 is located on the other side of the second rotation center in the horizontal direction, and the side is far away from the electrical switch 3.
Preferably, when the second unlocking lever 222 is in the second initial position, the second unlocking lever positioning portion 225 is in contact with the first unlocking lever second arm 2122, and when the first unlocking lever 212 is rotated in the unlocking layer door lock direction, the force applied to the second unlocking lever positioning portion 225 by the first unlocking lever 212 is 0 moment through the second lock shaft 221, so that the second unlocking lever 222 cannot be rotated, and the first unlocking lever 212 cannot be rotated.
Preferably, when the second unlocking lever 222 is in the second initial position, the second unlocking lever limiting portion 225 is in contact with the first unlocking lever second arm 2122, and when the first unlocking lever 212 is rotated in the unlocking layer door lock direction, the point of application of the force applied to the second unlocking lever limiting portion 225 by the first unlocking lever 212 is located on the side of the second lock cylinder 221 away from the first unlocking assembly 21, so as to generate a moment that the second unlocking lever 222 rotates in the direction of pressing the electrical switch contact, while the second unlocking lever 222 is unable to rotate by the limiting action of the second limiting plate 224, and the first unlocking lever is also unable to rotate.
Preferably, a torsion spring 215 is mounted on the first locking shaft 211, and the rotation of the first locking shaft 211 and the first unlocking lever 212 can drive the torsion spring 215 to twist, so that the torsion spring 215 stores potential energy; when no external force acts, the torsion spring releases energy, and the first lock shaft 211 and the first unlocking lever 212 return to the first initial position under the action of the torsion spring force.
Preferably, the front end of the first locking shaft 211 has a triangular head bolt head shape in cross section.
Preferably, the front end of the second locking core shaft 221 has a triangular head bolt head shape in cross section.
Preferably, the electrical switch assembly is connected with an electrical system of the elevator, and when the electrical switch assembly is closed, the elevator can normally run; when the electrical switch assembly is disconnected, the elevator cannot normally run.
Preferably, the floor door panel is provided with an access switch 32, the second unlocking lever first arm 2221 is provided with an access switch communicating device 2262, when the second unlocking assembly is at the second initial position, the access switch communicating device 2262 is not in contact with the access switch 32, and the contact of the access switch 32 is disconnected; when the second unlocking assembly is in the second final unlocking position, the service switch communicator 2262 turns on the service switch 32 contact under the condition that the second unlocking lever first arm 2221 is in contact with the second limiting plate 224.
Preferably, the maintenance switch 32 is connected with an electrical system, and when the contact of the maintenance switch 32 is closed, the elevator can be maintained and operated; when the contact of the maintenance switch 32 is disconnected, the elevator cannot be maintained and operated.
Preferably, the first unlocking lever first arm 2121 is connected to the rod 121 on the elevator landing door lock through the steel wire rope 13, and when the first unlocking lever 212 rotates in the unlocking direction, the first unlocking lever first arm 2121 drives the steel wire rope 13 to pull the rod 121 downwards to unlock the landing door lock.
The invention also discloses an elevator landing door comprising the elevator landing door unlocking system, which comprises a landing door device 1, a landing door panel 2, an electrical system and a landing door lock, wherein the landing door lock comprises a fixed lock hook 11 and a movable lock hook 12, the movable lock hook can rotate to unlock the landing door lock, and the movable lock hook 12 is connected with the landing door panel 2 and can horizontally move along with the landing door panel 2.
The invention can achieve the technical effects that:
before a maintenance worker opens a landing door and enters a hoistway, the second unlocking assembly needs to be unlocked by the triangular key firstly, an electric switch contact is disconnected, normal operation of an elevator is interrupted, and then the first unlocking assembly can be unlocked by the triangular key to unlock a landing door lock; after the maintenance personnel leave the hoistway, the second unlocking assembly needs to be manually restored, the electrical switch contact is closed, and the normal operation of the elevator is restored. Even personnel maloperation, go to the first unblock subassembly of unblock earlier, also can't open the layer door. Through the operation steps, the situation that the elevator cannot normally run all the time when personnel are located in the hoistway is guaranteed, and the safety of maintenance personnel is guaranteed.
Drawings
FIG. 1 is a schematic view of the back side of a landing door with the electrical switch contacts closed according to the present invention.
Fig. 2 is a schematic front view of a landing door with the electrical switch contacts closed according to the present invention.
Fig. 3 is a schematic view of the back side of a landing door with the electrical switch contacts open in accordance with the present invention.
Fig. 4 is a schematic view of the back side of a landing door with the electrical switch contacts closed and the service switch contacts open according to another embodiment of the invention.
Fig. 5 is a schematic view of the back side of a landing door with the electrical switch contacts open and the service switch contacts closed according to another embodiment of the present invention.
FIG. 6 is a schematic view of an initial state of the second unlocking assembly of the present invention.
FIG. 7 is a schematic view of an initial state of the first unlocking assembly of the present invention.
Fig. 8 is a schematic view of an initial state of a second unlocking assembly according to another embodiment of the present invention.
Description of the symbol designations in the drawings:
1 is a landing door device, 11 is a landing door locking latch hook, 12 is a landing door locking movable latch hook, 121 is a movable latch hook rod, 13 is an unlocking steel wire rope, 2 is a landing door panel, 21 is a first unlocking component, 211 is a first latch spindle, 212 is a first unlocking lever, 213 is a first latch spindle housing, 214 is a first limiting plate, 215 is a torsion spring, 2121 is a first unlocking lever first arm, 2122 is a first unlocking lever second arm, 2123 is a first unlocking lever third arm, 22 is a second unlocking component, 221 is a second latch spindle, 222 is a second unlocking lever, 223 is a second latch spindle housing, 224 is a second limiting plate, 225 is a second unlocking lever limiting part, 226 is an opening communicating device, 2221 is a second unlocking lever first arm, 2222 is a second unlocking lever second arm, 2262 is an opening communicating device, 3 is an electrical switch, and 32 is a service switch.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the present invention includes: a landing door apparatus 1, a landing door panel 2 and an electrical switch 3. The landing door device 1 is provided with a landing door lock, the landing door lock comprises a fixed lock hook 11 and a movable lock hook 12, the landing door lock can be unlocked after the movable lock hook 12 rotates, and the movable lock hook 12 is connected with the landing door panel 2 and can move horizontally along with the landing door panel. When the contact of the electric switch 3 is closed, the elevator can normally run, and when the contact of the electric switch 3 is disconnected, the elevator stops normally running.
Two unlocking components are installed on the layer door panel 2, the first unlocking component 21 is shown in fig. 1 and comprises a first lock core shaft 211, a first unlocking rod 212, a first lock core shell 213 and a first limiting plate 214, the first lock core shell 213 is fixedly arranged on the layer door panel 2, the first lock core shell 213 is fixedly connected with the first limiting plate 214, the first lock core shaft 211 is installed in the first lock core shell 213, the first lock core shaft 211 can only rotate and can not axially move, the first lock core shaft 211 is fixedly connected with the first unlocking rod 212, the first unlocking rod consists of three arms, the first unlocking rod arm 2121 is connected with a rod piece 121 on the movable lock hook 12 through a steel wire rope 13, and the layer door lock can be unlocked. The first locking shaft 211 is provided with a torsion spring 215, the torsion of the torsion spring 215 is driven by the rotation of the first locking shaft 211 and the first unlocking rod 212, and the torsion spring 215 stores potential energy; when the external force is not applied any more, the torsion spring releases energy, and the first latch shaft 211 and the first release lever 212 return to the initial positions by the action of the torsion spring.
As shown in fig. 6, the second unlocking assembly 22 includes a second lock cylinder shaft 221, a second unlocking lever 222, a second lock cylinder housing 223, a second limit plate 224, a second unlocking lever limit portion 225, the second lock cylinder housing 223 is fixedly disposed on the landing door panel 2, the second lock cylinder housing 223 is fixedly connected to the second limit plate 224, the second lock cylinder shaft 221 is mounted in the second lock cylinder housing 223, the second lock cylinder shaft is only rotatable and not axially movable, the second lock cylinder shaft 221 is fixedly connected to the second unlocking lever 222, the second unlocking lever 222 is composed of two arms, and an opening communicating device 226 is mounted on the second unlocking lever first arm 2221. The second lock release lever first arm 2221 is longer than the second arm 2222, and the center of gravity of the second lock release lever 222 is biased toward the second lock release lever first arm 2221. In the position of fig. 1, the second unlatching lever 222 has a center of gravity located to the right of the second latch axis, and the mechanism gravity causes the switch actuator 226 to press the electrical switch contacts; in the position of fig. 3, the center of gravity of the second unlatching lever 222 is located to the left of the second latch shaft and the mechanism gravity holds the switch actuator in a position away from the electrical switch contacts. Between fig. 1 and 3, a manual operation is required to change the second lock release lever position.
The working process of the mechanism is as follows:
in an initial state, as shown in fig. 1, the contact of the electrical switch 3 is turned on by the switch actuator 226, the second unlocking lever second arm 2222 has a horizontal limit end surface 225 and a vertical side surface, the vertical side surface contacts with the second limit plate 224, and the second unlocking lever 222 cannot rotate in a direction of pressing the switch contact; the second arm 2122 of the first unlocking lever contacts the first limiting plate 214, and the first unlocking lever 212 cannot rotate counterclockwise; the second unlocking lever limiting portion 225 contacts the first unlocking lever second arm 2122, the thrust of 2122 to 225 vertically passes through the rotation center 221 upwards and is balanced by the shaft 221, the thrust is 0 for the clockwise moment generated at the rotation center 221, so that the first unlocking lever 212 cannot rotate clockwise, as shown in fig. 1, and therefore, in the initial state, when the electrical switch contact is closed, the first unlocking lever 212 cannot rotate, and the landing door lock cannot be unlocked.
When the landing door needs to be opened to enter the hoistway for maintenance, the second unlocking lever 222 needs to be rotated first, and then the first unlocking lever 212 needs to be rotated, and fig. 3 shows the position of the second unlocking lever 222 after rotation. When the second unlocking lever 222 rotates, the switch communicating device 226 moves away from the switch contact, the electrical switch contact is disconnected, and after the second unlocking lever rotates counterclockwise by a certain angle a, the second unlocking lever reaches the position shown in the figure, the first arm 2221 of the second unlocking lever contacts with the second limiting plate 224, and the second unlocking lever cannot rotate continuously; when the position is shown in the figure, the second unlocking lever limiting part 225 is no longer in contact with the second arm 2122 of the first unlocking lever, the limiting function is invalid, the first unlocking lever 212 can rotate clockwise, the steel wire rope 13 is pulled to drive the rod piece 121, the rod piece 121 lifts the movable locking hook 12 upwards to unlock the layer door lock, and after the external force is removed, the first unlocking lever 212 returns to the initial position under the action of the torsion spring 215.
After the maintenance is completed, the maintenance personnel returns to the landing, the second unlocking lever 222 rotates in the direction of closing the contact of the electrical switch, the contact of the electrical switch 3 is conducted by the communicating device 226, and the elevator returns to normal operation.
Example 2
As shown in fig. 4, the present invention includes: a landing door apparatus 1, a landing door panel 2 and an electrical switch 3. The landing door device 1 is provided with a landing door lock, the landing door lock comprises a fixed lock hook 11 and a movable lock hook 12, the landing door lock can be unlocked after the movable lock hook 12 rotates, and the movable lock hook 2 is connected with the landing door panel 2 and can move horizontally along with the landing door panel. When the contact of the electric switch 3 is closed, the elevator can normally run, and when the contact of the electric switch 3 is disconnected, the elevator stops normally running.
Install two unblock subassemblies on layer door panel 2, first unblock subassembly 21 includes first lock core axle 211, first unblock pole 212, first lock core shell 213 and first limiting plate 214, first lock core shell 213 is fixed to be set up on layer door panel 2, first lock core shell 213 fixed connection first limiting plate 214, first lock core axle 211 is installed in first lock core shell 213, first lock core axle 211 is rotatable only, but axial motion, first unblock pole 212 of first lock core axle 211 fixed connection, first unblock pole comprises three arms, first arm 2121 of first unblock pole is connected with member 121 on the movable latch hook 12 through wire rope 13, can unblock layer door lock. The first locking shaft 211 is provided with a torsion spring 215, the torsion of the torsion spring 215 is driven by the rotation of the first locking shaft 211 and the first unlocking rod 212, and the torsion spring 215 stores potential energy; when the external force is not applied any more, the torsion spring releases energy, and the first latch shaft 211 and the first release lever 212 return to the initial positions by the action of the torsion spring.
The second unlocking assembly 22 includes a second lock cylinder 221, a second unlocking lever 222, a second lock cylinder housing 223, a second limit plate 224, a second unlocking lever limit portion 225, the second lock cylinder housing 223 is fixedly disposed on the landing door panel 2, the second lock cylinder housing 223 is fixedly connected with the second limit plate 224, the second lock cylinder 221 is mounted in the second lock cylinder housing 223, the second lock cylinder is only rotatably and axially immovably, the second lock cylinder 221 is fixedly connected with the second unlocking lever 222, the second unlocking lever 222 is composed of two arms, and an opening communicating device 226 and an opening communicating device 2262 (shown in fig. 8) are mounted on the second unlocking lever first arm 2221. The second lock release lever first arm 2221 is longer than the second arm 2222, and the center of gravity of the second lock release lever 222 is biased toward the second lock release lever first arm 2221. In the position of fig. 4, the second unlocking lever 222 has its center of gravity located to the right of the second spindle shaft, the mechanism gravity causes the opening coupler 226 to press against the contacts of the electrical switch 3, and the service opening coupler 2262 is held away from the service switch 32; in the position of fig. 5, the center of gravity of the second lock release lever 222 is located to the left of the second lock cylinder axis, and the mechanism gravity causes the service switch actuator to actuate the contacts of the service switch 32, and the switch actuator 226 is held away from the contacts of the electrical switch 3. Between fig. 4 and 5, a manual operation is required to change the second lock release lever position.
The working process of the mechanism is as follows:
as shown in fig. 4, in the initial state, the contact of the electrical switch 3 is turned on by the switch actuator 226, the contact of the service switch 32 is turned off, the second unlocking lever second arm 2222 has a horizontal limit end surface 225 and a vertical side surface, the vertical side surface contacts with the second limit plate 224, and the second unlocking lever 222 cannot rotate in the direction of pressing the switch contact; the second arm 2122 of the first unlocking rod is in contact with the first limiting plate 214, and the first unlocking rod 212 cannot rotate in the reverse direction of the door lock of the unlocking layer; the second unlocking lever limiting portion 225 contacts the first unlocking lever second arm 2122, in this embodiment, the length of the second arm 2122 is longer than that in the first embodiment, so that the point of application of the pushing force of the second arm 2122 to 225 is located on the left side of the rotation center 221 in the vertical direction, a moment is generated to rotate the second unlocking lever 222 in the direction of pressing the electrical switch contact, the second unlocking lever 222 is limited by the second limiting plate 224 and cannot rotate, and the second unlocking lever 222 limits the rotation of the first unlocking lever 212, so that an incorrect operation cannot be caused.
When the landing door needs to be opened to enter the hoistway for maintenance, the second unlocking lever 222 needs to be rotated first, and then the first unlocking lever 212 needs to be rotated, and fig. 4 shows the position of the second unlocking lever 222 after rotation. When the second unlocking lever 222 rotates, the switch communicating device 226 moves away from the switch 3 contact, the electrical switch 3 contact is disconnected, and after the second unlocking lever rotates by a certain angle a, the position shown in fig. 5 is reached, and the first arm 2221 of the second unlocking lever contacts with the second limiting plate 224, so that the second unlocking lever cannot rotate continuously; when the position is shown in the figure, the limiting function of the second unlocking lever limiting part 225 on the first unlocking lever 212 is disabled, the first unlocking lever 212 can rotate towards the direction of unlocking the landing door lock, the steel wire rope 13 is pulled to drive the rod piece 121, the rod piece 121 lifts the movable locking hook 12 upwards to unlock the landing door lock, and after the external force is removed, the first unlocking lever 212 returns to the initial position under the action of the torsion spring 215; in addition, when the position is shown in the figure, the contact of the maintenance switch 32 is conducted by the maintenance switch communicator 2262, and at the moment, the elevator can run in a maintenance mode, so that the personnel can conveniently perform maintenance in the hoistway.
After the maintenance is completed, the maintenance personnel returns to the landing, the second unlocking lever 222 rotates in the direction of closing the contact of the electrical switch, the contact of the electrical switch 3 is conducted by the communicating device 226, and the elevator returns to normal operation.
The elevator car adopts a double-lock-cylinder structure, and the normal operation of the elevator is ensured when the elevator car enters the hoistway by utilizing the limiting effect of the second unlocking assembly on the first unlocking assembly; the design that the second unlocking assembly needs to be reset manually is utilized, and the normal operation of the elevator can be recovered after personnel leave the hoistway. Through the limitation of the two steps, the safety of personnel in the well during maintenance is guaranteed, and the well condition of a shallow pit and a short top layer is adapted.
In summary, the above embodiments and drawings are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (14)
1. An elevator landing door lock unlocking system, comprising:
the first unlocking assembly (21) is connected with the elevator floor door lock and used for unlocking the elevator floor door lock; the first unlocking assembly (21) comprises a first rotating center and a first limiting device, the first unlocking assembly (21) is provided with a first initial position and a first final unlocking position, the first unlocking assembly (21) rotates around the first rotating center from the first initial position to the first final unlocking position and stops, and the first limiting device is used for limiting the first initial position and the first final unlocking position;
the second unlocking assembly (22) comprises a second rotating center, a second limiting device and an electrical switch assembly; the second unlocking assembly (22) is provided with a second initial position and a second final unlocking position, the second unlocking assembly (22) rotates around a second rotation center from the second initial position to the second final unlocking position and stops, the second limiting device is used for limiting the second initial position and the second final unlocking position, and the electrical switch assembly is switched on only when the second unlocking assembly is located at the second initial position so that the elevator can normally run;
changing the second initial position and the second final unlocked position by manual operation;
the second unlocking assembly (22) further comprises a second unlocking limiting part, when the second unlocking assembly (22) is located at a second initial position, the second unlocking limiting part limits the first unlocking assembly to be kept at a first initial position, and when the second unlocking assembly leaves the second initial position, the first unlocking assembly (21) can rotate relative to the first rotating center to unlock the landing door.
2. An elevator landing door lock unlocking system according to claim 1, wherein the first unlocking assembly (21) comprises a first lock shaft (211), a first unlocking rod (212), a first lock housing (213), a first limit plate (214), the first lock housing (213) is fixedly arranged on the landing door panel of the elevator, the first lock housing (213) is fixedly connected with the first limit plate (214), the first lock shaft (211) is installed in the first lock housing (213), the first unlocking assembly rotates around the first lock shaft (211), the first lock shaft (211) is fixedly connected with the first unlocking rod (212), the first unlocking rod (212) is composed of at least three arms, and the first unlocking rod first arm (2121) is connected with the landing door lock device to unlock the landing door lock.
3. An elevator landing door lock unlocking system according to claim 1, wherein the second unlocking assembly (22) comprises a second lock cylinder shaft (221), a second unlocking lever (222), a second lock cylinder housing (223), a second limit plate (224), a second unlocking lever limit portion (225), the second lock cylinder housing (223) is fixedly disposed on the landing door panel of the elevator, the second lock cylinder housing (223) is fixedly connected with the second limit plate (224), the second lock cylinder shaft (221) is installed in the second lock cylinder housing (223), the second unlocking assembly (22) rotates with the second lock cylinder shaft (221) as the rotation center, the second lock cylinder shaft (221) is fixedly connected with the second unlocking lever (222), the second unlocking lever (222) is composed of at least two arms, an open communicating device (226) is installed on the first unlocking lever (2221), the second unlocking lever second arm top end portion is the second unlocking lever limit portion (225), for limiting the first unlocking member from remaining in the first initial position.
4. An elevator landing door lock unlocking system according to claim 3, wherein when the second unlocking assembly is in the second initial position, the second unlocking lever (222) has a center of gravity located between the second rotation center and the electrical switch (3) in the horizontal direction; when the second unlocking assembly is in the second final unlocking position, the gravity center of the second unlocking rod (222) is positioned on the other side of the second rotation center in the horizontal direction, and the side is far away from the electric switch (3).
5. The elevator landing door lock unlocking system according to claim 3, wherein: when the second unlocking lever (222) is at the second initial position, the second unlocking lever limiting part (225) is in contact with the second arm (2122) of the first unlocking lever, and when the first unlocking lever (212) is rotated towards the door lock direction of the unlocking layer, the force applied to the second unlocking lever limiting part (225) by the first unlocking lever (212) passes through the second lock core shaft (221) and the moment is 0, so that the second unlocking lever (222) cannot rotate, and meanwhile, the first unlocking lever (212) cannot rotate.
6. The elevator landing door lock unlocking system according to claim 3, wherein: when the second unlocking rod (222) is located at the second initial position, the limiting part (225) of the second unlocking rod is in contact with the second arm (2122) of the first unlocking rod, when the first unlocking rod (212) is rotated towards the door lock direction of the unlocking layer, the force point of the first unlocking rod (212) applied to the limiting part (225) of the second unlocking rod is located on the side, away from the first unlocking assembly (21), of the second lock core shaft (221), so that a moment is generated, which enables the second unlocking rod (222) to rotate towards the direction of pressing the contact of the electrical switch, the second unlocking rod (222) cannot rotate under the limiting action of the second limiting plate (224), and meanwhile, the first unlocking rod (212) cannot rotate.
7. The elevator landing door lock unlocking system according to claim 2, wherein: a torsion spring (215) is arranged on the first lock core shaft (211), and the torsion of the torsion spring (215) can be driven by the rotation of the first lock core shaft (211) and the first unlocking rod (212), so that the torsion spring (215) stores potential energy; when no external force acts on the first lock shaft (211) and the first unlocking rod (212), the torsion spring releases energy, and the first lock shaft and the first unlocking rod return to the first initial position under the action of the torsion spring force.
8. The elevator landing door lock unlocking system according to claim 2, wherein: the cross section of the front end of the first lock mandrel (211) is in the shape of the head of a triangular bolt.
9. The elevator landing door lock unlocking system according to claim 3, wherein: the section of the front end of the second lock core shaft (221) is in the shape of the head of a triangular bolt.
10. The elevator landing door lock unlocking system according to claim 1, wherein: the electrical switch assembly is connected with an electrical system of the elevator, and when the electrical switch assembly is closed, the elevator can normally run; when the electrical switch assembly is disconnected, the elevator cannot normally run.
11. The elevator landing door lock unlocking system according to claim 3, wherein: the layer door panel is provided with an overhaul switch (32), the first arm (2221) of the second unlocking rod is provided with an overhaul switch on-off connector (2262), and when the second unlocking assembly is positioned at the second initial position, the overhaul switch on-off connector (2262) is not in contact with the overhaul switch (32), and the contact of the overhaul switch (32) is disconnected; when the second unlocking assembly is in the second final unlocking position, the service switch communicator (2262) conducts the contact of the service switch (32) under the condition that the first arm (2221) of the second unlocking lever is in contact with the second limit plate (224).
12. The elevator landing door lock unlocking system according to claim 11, wherein: the maintenance switch (32) is connected with an electrical system, and when the contact of the maintenance switch (32) is closed, the elevator can be maintained and operated; when the contact of the maintenance switch (32) is disconnected, the elevator cannot be maintained and operated.
13. The elevator landing door lock unlocking system according to claim 2, wherein: first arm (2121) of first unblocking lever is connected with member (121) on the elevator layer door lock through wire rope (13), and when first unblocking lever (212) rotated to the unblock direction, first arm (2121) of first unblocking lever drove wire rope (13) and pulls member (121) downwards and unblock layer door lock.
14. An elevator landing door comprising an elevator landing door unlocking system according to any of claims 1-13, characterized by a landing door assembly (1), a landing door panel (2), an electrical system, a landing door lock, said landing door lock comprising a fixed latch hook (11) and a movable latch hook (12), the movable latch hook being rotatable to unlock the landing door lock, the movable latch hook (12) being connected to the landing door panel (2) and being horizontally movable with the landing door panel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485424.XA CN110498328B (en) | 2018-05-18 | 2018-05-18 | Elevator layer door lock unlocking system and elevator layer door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485424.XA CN110498328B (en) | 2018-05-18 | 2018-05-18 | Elevator layer door lock unlocking system and elevator layer door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110498328A CN110498328A (en) | 2019-11-26 |
| CN110498328B true CN110498328B (en) | 2021-10-08 |
Family
ID=68584196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810485424.XA Active CN110498328B (en) | 2018-05-18 | 2018-05-18 | Elevator layer door lock unlocking system and elevator layer door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110498328B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410105B (en) * | 2020-03-05 | 2021-09-14 | 日立电梯（中国）有限公司 | Elevator system, maintenance safety device and transmission mechanism |
| CN112576109A (en) * | 2020-12-08 | 2021-03-30 | 上海三菱电梯有限公司 | Elevator landing unlocking device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07309567A (en) * | 1994-05-20 | 1995-11-28 | Otis Elevator Co | Lock release device for elevator door on entrance side |
| CN101734536A (en) * | 2010-01-28 | 2010-06-16 | 允成机电科技(上海)有限公司 | Elevator door lock device of vertical sliding door |
| JP2011037553A (en) * | 2009-08-07 | 2011-02-24 | Mitsubishi Electric Corp | Unlocking device of landing door lock device of elevator |
| CN102015510A (en) * | 2008-06-16 | 2011-04-13 | 三菱电机株式会社 | Elevator car door lock |
| JP2012218834A (en) * | 2011-04-05 | 2012-11-12 | Mitsubishi Electric Corp | Locking device of elevator landing |
| CN203877708U (en) * | 2014-06-17 | 2014-10-15 | 日立电梯（中国）有限公司 | Manual unlocking device outside elevator car door lock hall |
| CN104203795A (en) * | 2012-03-22 | 2014-12-10 | 三菱电机株式会社 | Safety device for elevator |
| CN205312842U (en) * | 2015-12-09 | 2016-06-15 | 上海三菱电梯有限公司 | Rotation triggers formula layer every lock lock core device and door unblock of elevator layer and warning device |
| CN106853941A (en) * | 2015-12-09 | 2017-06-16 | 上海三菱电梯有限公司 | Insertion trigger-type layer door lock lock core device and elevator door unblock and alarming device |
| CN107473061A (en) * | 2016-06-08 | 2017-12-15 | 奥的斯电梯公司 | The maintenance safety device and its operating method of elevator system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10301325B4 (en) * | 2003-01-15 | 2012-04-12 | Hans & Jos. Kronenberg Gmbh | Door lock with emergency release |
| JP4738795B2 (en) * | 2004-11-26 | 2011-08-03 | 三和シヤッター工業株式会社 | Locking device for doors of household elevators |
| CN104418218B (en) * | 2013-08-27 | 2016-06-15 | 上海三菱电梯有限公司 | Elevator landing door |
-
2018
- 2018-05-18 CN CN201810485424.XA patent/CN110498328B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07309567A (en) * | 1994-05-20 | 1995-11-28 | Otis Elevator Co | Lock release device for elevator door on entrance side |
| CN102015510A (en) * | 2008-06-16 | 2011-04-13 | 三菱电机株式会社 | Elevator car door lock |
| JP2011037553A (en) * | 2009-08-07 | 2011-02-24 | Mitsubishi Electric Corp | Unlocking device of landing door lock device of elevator |
| CN101734536A (en) * | 2010-01-28 | 2010-06-16 | 允成机电科技(上海)有限公司 | Elevator door lock device of vertical sliding door |
| JP2012218834A (en) * | 2011-04-05 | 2012-11-12 | Mitsubishi Electric Corp | Locking device of elevator landing |
| CN104203795A (en) * | 2012-03-22 | 2014-12-10 | 三菱电机株式会社 | Safety device for elevator |
| CN203877708U (en) * | 2014-06-17 | 2014-10-15 | 日立电梯（中国）有限公司 | Manual unlocking device outside elevator car door lock hall |
| CN205312842U (en) * | 2015-12-09 | 2016-06-15 | 上海三菱电梯有限公司 | Rotation triggers formula layer every lock lock core device and door unblock of elevator layer and warning device |
| CN106853941A (en) * | 2015-12-09 | 2017-06-16 | 上海三菱电梯有限公司 | Insertion trigger-type layer door lock lock core device and elevator door unblock and alarming device |
| CN107473061A (en) * | 2016-06-08 | 2017-12-15 | 奥的斯电梯公司 | The maintenance safety device and its operating method of elevator system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110498328A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3255006B1 (en) | A maintenance safety device for elevator and a operation method thereof | |
| US5690189A (en) | Apparatus and method for locking and unlocking the door of an elevator car | |
| EP1863733B1 (en) | Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped | |
| CN101081677B (en) | Elevator car door locking device | |
| CN110498328B (en) | Elevator layer door lock unlocking system and elevator layer door | |
| JP6804517B2 (en) | Elevator car door interlock with door frame lock | |
| CN107150942B (en) | Double-locking type anti-theft car door lock and door knife device | |
| CN105502120A (en) | Lift car door-opening accidental moving protecting device | |
| CN205367367U (en) | Elevator car unexpected protection device of removal that opens door | |
| CN105035921A (en) | Door knife integrated with car door lock and used for elevator | |
| CN201058783Y (en) | Elevator car door locking device | |
| CN200940381Y (en) | Lift car door lock | |
| CN111717766A (en) | Synchronous door knife with car door lock | |
| CN111634774B (en) | Safety system for small door lock of elevator landing door | |
| CN105800436A (en) | Integrated car door lock asynchronous door vane device | |
| KR102086246B1 (en) | Clutch System for Door of Elevator | |
| CN104692220B (en) | A kind of two arm-type gate of moving knife is locked a door cutter | |
| CN213738097U (en) | Automatic change shallow pit of elevator and overhaul protection device | |
| CN204897123U (en) | Door sword of integrated sedan -chair lock of elevator | |
| CN111717767B (en) | Door knife linkage device and working method of door knife formed by door knife linkage device | |
| CN210914904U (en) | Protective device for elevator car door | |
| CN212769314U (en) | Holding type elevator car door lock and door knife device | |
| CN102363491B (en) | Elevator cage door lock device | |
| CN208544988U (en) | Elevator landing solution lock linkage device | |
| CN202272609U (en) | Elevator cage door locking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |