CN106744214B - Landing door with opening protection function - Google Patents

Abstract

The invention discloses a landing door with an opening protection function. The landing door is connected to the upper sill of the landing door through a door hanging plate, the landing door lock is arranged on the door hanging plate, and the landing door lock is provided with a lock body and a rotation center The landing door is equipped with a main unlocking device and an auxiliary unlocking device. The landing door opening protection device includes a sensor, a telescopic locking device and a limit device. The telescopic locking device is set on the door hanging plate, and the limit device is set on the upper sill of the landing door. superior. The present invention has the advantages that: the main unlocking device and the auxiliary unlocking device can diversify the unlocking methods of the floor door locks; a jog switch and an indicator light are provided to know whether the main unlocking device successfully opens the floor door lock, and a sensor and an unlocking protection device are provided Ensure that the car is on this floor to prevent the accident of falling into the well.

Description

Landing door with opening protection function

technical field

The invention relates to the technical field of elevator hall door opening, in particular to an elevator hall door opening technology provided with a protection device.

Background technique

Existing landing door systems all have only one set of landing door lock opening devices, mainly the landing door triangular lock assembly, which is driven to open the landing door lock by the rotation of the triangular key trigger device. Each set of landing doors is equipped with a set of unlocking devices, but when the unlocking component paddle or unlocking lever falls off, or the unlocking lever is loose, or the floor door lock cannot be opened smoothly due to long-term non-use accumulation of rust, once the elevator fails and Passengers in the car need to be rescued, so they cannot be carried out on this floor. They need to go to other floors to open the landing door for rescue or turn the car to another landing door to carry out rescue, which will delay the rescue time and reduce the success rate of rescue. Moreover, when the personnel holding the triangular key of the landing door opened the hall door, there were also many accidents in which the car accidentally fell into the well due to misjudgment of the position of the car on the floor.

The announcement number is "CN201512339U", which is called "Safety Protection Device for Manual Secondary Opening of Elevator Landing Door", which discloses a safety protection device for manual secondary opening of elevator landing door, including secondary hook, shaft lighting and voice switch, landing door Locking lock hook, unlocking ejector rod, ejector rod hitting plate, landing door lock static locking hook, secondary hook return spring, landing door hanging plate, landing door upper dam frame, secondary hook passing through the hole; when the landing door is to be opened , the triangular key rotates the ejector rod upward to push the unlocking ejector rod upward to push the secondary hook and the floor door lock dynamic lock hook, the floor door lock dynamic lock hook and the floor door lock static lock hook are separated, and the secondary hook passes through the secondary hook Push the shaft lighting and voice switch through the hole to light up the shaft lighting and voice device, and hang it on the secondary hook passing hole. One door opening is completed. Because the secondary hook passing hole has a certain length, only part of the door can be opened at one time. At this time, it works The personnel visually and audibly judge whether the elevator landing door continues to open, and when it needs to be opened, reset the secondary lock hook, and then manually open the landing door. Although this technical solution can reduce the occurrence of accidental falling into the well during elevator maintenance, the unlocking method is single. If there is a problem with the triangular lock component, it is difficult to open the landing door, and this technical solution relies on lighting and voice to make manual judgments whether it is suitable for opening Landing doors, the unlocking system is not intelligent, if the lighting system or the voice device fails, it is easy to cause accidents.

Contents of the invention

The object of the present invention is to provide a landing door with an opening protection function to solve the problems of the prior art that there is a single way to unlock the landing door, and the unlocking process relies on manual judgment whether it is suitable to open the landing door, and there are potential safety hazards.

In order to achieve the above object, the present invention adopts the following technical solutions:

A landing door with an opening protection function, comprising a landing door sill, a door hanging plate, a landing door lock, and a landing door, the landing door is connected to the landing door sill through a door hanging plate, the landing The door lock is arranged on the door hanging plate, and the floor door lock is provided with a lock body and a rotation center, and a main unlocking device is provided on the floor door close to the rotation center, and the main unlocking device includes a triangular lock assembly of the main floor door . The main unlocking lever, one end of the main unlocking lever is fixed on the rotation center, and the triangular lock assembly of the main floor door rotates to drive the main unlocking lever to lift the lock hook at the rotation center to open the floor door lock;

There is also a landing door opening protection device, the landing door opening protection device includes a sensor, a telescopic locking device, and a limit device, the telescopic locking device is set on the door hanging plate, and the limit device is set on the upper sill of the landing door . The sensor detects whether the door knife in the door opener or the position of the car is on the leveling floor through the position. When the sensor is set on the landing door lock, it is used to detect whether the door knife is in the scanning area; when it is set on the car, it is used to detect whether the specific part of the landing door is in the scanning area. To set it by yourself, the main control needs to issue instructions to each landing door.

Further, the main floor door triangular lock assembly includes a first paddle, the main unlocking lever includes a first main unlocking lever and a second main unlocking lever, and the first main unlocking lever is linear , one end of the first main unlocking lever is installed on the end of the lock hook near the rotation center, that is, the long arm, the second main unlocking lever is bent, and one end of the second main unlocking lever is installed on the short arm of the rotation center Above, the free ends of the first master unlocking lever and the second master unlocking lever are staggered and do not touch each other.

Further, the first plectrum is stepped. Rotating one of the steps in one direction can drive the first unlocking lever to unlock the floor door lock, and the rotation of the other ladder in the other direction can drive the second unlocking lever to unlock the floor door lock.

Further, the telescopic locking device includes a telescopic sleeve body, a spring is installed in the telescopic sleeve body, and a telescopic pin is connected to the upper end of the spring. The magnet is also provided with a switch circuit of an unlock protection device. The electromagnet is located in the switch circuit of the unlock protection device. After the sensor senses the leveling, the electromagnet is energized to pull down the retractable pin, and the unlocked landing door is smooth. open.

Further, an unlocking rope is connected to the bottom of the telescopic pin.

Further, the landing door is provided with a detection system, including a landing door lock switch circuit, the landing door lock switch circuit is provided with an indicator light and a jog switch, the indicator light is arranged on the landing door, and the jog switch The contact is positioned on the free end of the first unlocking lever, and the connection part of the jog switch is on the first paddle. When the first paddle contacts the first unlocking lever, the jog switch can be touched, and the indicator light is on. A resistor is connected in parallel to the switch circuit of the indicator light. When the floor door lock switch is closed and the first paddle of the main unlocking device is in contact with the unlocking lever, that is, when the jog switch is closed, the indicator light is on, indicating that the floor door lock has not been opened. And when the landing door is unlocked, the landing door lock switch is disconnected, and then the indicator light circuit is cut off, and the indicator light goes out.

Further, the landing door lock switch circuit is in an interlocking relationship with the switch circuit of the landing door unlocking protection device. However, when the floor door lock switch is turned off, the signal is detected by the sensor for judgment, which is conditional work.

Further, an auxiliary unlocking device is also provided, including an auxiliary landing door triangular lock assembly, a rotating shaft, an unlocking lever, an unlocking roller, and an unlocking link. The auxiliary landing door triangular lock assembly is arranged on the landing door close to the lock body, The unlocking lever is connected to the door hanging plate where the lock body is located through a rotating shaft, the unlocking roller is fixed on the upper end of the unlocking lever, and one end of the unlocking link is rigidly connected to the end of the locking hook near the rotation center The other end is connected to the unlocking roller, and the unlocking lever is driven to rotate through the triangular lock assembly of the auxiliary landing door to lift the unlocking link and the lock hook at the center of rotation. The triangular lock assembly of the auxiliary landing door includes a second paddle. The unlocking lever is bent, and a first limiting column and a second limiting column are arranged between two ends thereof. When the unlocking lever is self-locked by gravity or spring to the initial state, the unlocking roller does not contact the unlocking link on the landing door lock, and can be limited horizontally by the first limit post; when the auxiliary unlocking component is driven by the second paddle, The position can be limited by the second limit post to prevent reverse overturning after the unlocking connecting rod leaves.

Further, the short arm of the rotation center is connected with a layer door lock pull rope.

The present invention has the advantages of being provided with a first main unlocking lever, a second main unlocking lever, and a stepped first paddle, so that the triangular key of the main unlocking device can be rotated in two different directions to unlock. The door lock pull rope and the auxiliary unlocking device can diversify the unlocking methods of the floor door locks; there are jog switches and indicator lights to know whether the main unlocking device has successfully opened the floor door lock, and sensors and unlocking protection devices can Ensure that the car is on this floor, and intelligently prevent the accident of falling into the well.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, constitute a part of the application, and do not constitute an improper limitation of the present invention. In the accompanying drawings:

Fig. 1 is a structural schematic diagram of the closed state of the landing door of the present invention;

Fig. 2 is a structural schematic diagram of the plectrum of the triangular lock of the present invention rotating in one direction to unlock the floor door lock;

Fig. 3 is the structural representation of the car opening the landing door outside the non-leveling hall of the present invention;

Fig. 4 is a schematic structural view of the telescopic locking device of the present invention in two states;

5 is a circuit diagram of the relationship between the landing door lock switch and the landing door opening protection device of the present invention;

Fig. 6 is a structural schematic diagram of the plectrum of the triangular lock of the present invention rotating in another direction to unlock the floor door lock;

Fig. 7 is a schematic diagram of the opening of the secondary unlocking assembly of the present invention.

Landing door lock 1, retractable locking device 2, limit device 3, landing door upper sill 4, landing door guide rail 5, landing door 6, second unlocking lever 7, door hanging plate 8, landing door lock pull rope 9, The first paddle 10, the unlocking roller 11, the indicator light 12, the second paddle 13, the triangular lock assembly 14 of the auxiliary floor door, the unlocking lever 15, the rotating shaft 16, the rotation center 17, the triangular lock assembly 18 of the main floor door, jogging Switch 19, the first unlocking driving lever 20, telescopic pin 21, spring 22, unlocking rope 23, electromagnet 24, telescoping sleeve body 25, unlocking connecting rod 26, the second limiting post 27, the first limiting post 28.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

As shown in Figure 1-7, a landing door with an opening protection function includes a landing door upper sill 4, a door hanging plate 8, a landing door lock 1, and a landing door 6, and the landing door 6 passes through the door hanging hanging plate. 8 is connected to the upper sill 4 of the landing door, the landing door lock 1 is set on the door hanging plate 8, the landing door lock 1 is provided with a lock body and a rotation center 17, and the floor near the rotation center 17 The door 6 is provided with a main unlocking device, and the main unlocking device includes a main floor door triangular lock assembly 18 and a main unlocking lever, one end of the main unlocking lever is fixed on the rotation center 17, and the main floor door triangular lock assembly 18 Rotate to drive the main unlocking lever so that the lock hook of the rotation center 17 is lifted up to open the floor door lock 1;

A protection device for opening the landing door is also provided, and the protection device for opening the landing door includes a sensor, a telescopic locking device 2, and a limiting device 3. The telescopic locking device 2 is arranged on the door hanging plate 8, and the limiting device 3 is arranged on the The upper sill 4 top of the landing door. The sensor detects whether the door knife in the door opener or the position of the car is on the leveling floor through the position. When the sensor is set on the landing door lock, it is used to detect whether the door knife is in the scanning area; when it is set on the car, it is used to detect whether the specific part of the landing door is in the scanning area. To set it by yourself, the main control needs to issue instructions to each landing door.

The triangular lock assembly 18 of the main floor door includes a first paddle 10, the main unlocking lever includes a first main unlocking lever and a second main unlocking lever, the first main unlocking lever is straight, One end of the first main unlocking lever is installed on one end of the lock hook near the rotation center 17, that is, the long arm. arm. The free ends of the first master unlocking lever and the second master unlocking lever are staggered and do not touch each other. The first plectrum 10 is stepped. Rotating one of the steps in one direction can drive the first unlocking lever 20 to open the floor door lock 1 , and the rotation of the other step in the other direction can drive the second unlocking lever 7 to open the floor door lock 1 .

The telescopic locking device 2 includes a telescopic sleeve body 25, a spring 22 is installed in the telescopic sleeve body 25, and a telescopic pin 21 is connected to the upper end of the spring 22. An electromagnet 24 is connected to the lower end of the pin 21 , and an unlocking rope 23 is connected to the bottom of the telescopic pin 21 . There is also a switch circuit for the unlocking protection device, the electromagnet 24 is located in the switching circuit of the unlocking protection device, after the sensor senses the leveling, the electromagnet 24 is energized to pull down the retractable pin 21, and the unlocked landing door 6 Opened successfully.

The landing door 6 is provided with a detection system, including a landing door lock switch circuit, the landing door lock switch circuit is provided with an indicator light 12 and a jog switch 19, the indicator light 12 is arranged on the landing door 6, and the jog switch Contact is positioned at the free end of first unlocking driving lever, and the connection part of jog switch is on the first plectrum, and first plectrum 10 can touch jogging switch 19 when contacting with the first unblanking driving lever, and indicator light 12 is bright. A resistor is connected in parallel on the switch circuit of the indicator light 12. When the floor door lock switch is closed and the first plectrum 10 of the main unlocking device is in contact with the first unlocking lever, that is, when the jog switch 19 is closed, the indicator light 12 is on, prompting The floor door lock 1 has not been opened yet, and after the floor door 6 is unlocked, the floor door lock switch is disconnected, and the indicator light 12 circuit is cut off thereupon, and the indicator light 12 goes out.

The landing door lock switch circuit is interlocked with the switching circuit of the landing door unlock protection device. However, when the floor door lock switch is turned off, the signal is detected by the sensor for judgment, which is conditional work.

Also be provided with auxiliary unlocking device, comprise auxiliary floor door triangular lock assembly 14, rotating shaft 16, unlocking lever 15, unlocking roller 11, unlocking connecting rod 26, auxiliary floor door triangular lock assembly 14 is located at the layer close to described lock body On the door 6, the triangular lock assembly 14 of the auxiliary floor door includes a second paddle 13, the unlocking lever 15 passes through the door hanging plate 8 where the lock body is located by the rotating shaft 16, and the unlocking lever 15 is bent, The unlocking roller 11 is fixed on the upper end of the unlocking lever 15, and the second plectrum 13 triggers the action of the unlocking lever 15. One end of the unlocking link 26 is rigidly connected to the end of the locking hook near the rotation center 17, and the other end is connected to the On the unlocking roller 11, the unlocking lever 15 is driven to rotate by the triangular lock assembly 14 of the auxiliary floor door and contacts with the unlocking link 26 to trigger the opening of the floor door lock 1, and a first limit post is arranged between the two ends of the unlocking lever 15 28 and the second limit post 27. When the unlocking lever 15 relies on gravity or the self-locking of the spring 22 into the initial state, the unlocking roller 11 does not contact the unlocking link 26 on the floor door lock 1, and can rely on the first limit post 28 to limit the position horizontally; When the two paddles 13 are driven, they can be limited by the second limit post 27 to prevent the reverse overturning after the unblanking connecting rod 26 leaves.

The short arm of the rotation center 17 is connected with a floor door lock stay rope 9 .

The working principle of the present invention is as follows:

If the elevator breaks down, people outside the hall need to open the landing door 6 for maintenance or rescue. As shown in Figure 1-7, the action process under normal working conditions is as follows. When the personnel outside the hall use the triangular key to open the landing door lock 1, if the triangular lock assembly 18 of the main landing door can rotate normally, the first paddle 10 will rotate counterclockwise. Contact the first unlocking lever 20 in the process, lift the lock hook upwards, and at the same time, the jog switch 19 of the indicator light 12 is closed, as shown in Figure 5, that is, the switch K is closed, the indicator light 12 is on, and when the floor door lock 1 After fully opening, as shown in Figure 5, the relay coil loses power, the floor door lock switch KM1 is disconnected, the circuit is cut off, and the indicator light 12 goes out, which proves that the floor door lock 1 is opened successfully.

After the elevator stops, the sensor on the floor door lock 1 starts to scan. When the car is on the floor, it detects the existence of the door knife and feeds back to the control system to close the switch KM2 in Figure 5, and the KM2 coil is energized, and the telescopic locking device 2 The energized electromagnet 24 is energized, and telescopic pin 21 is contracted, and after landing door lock 1 is opened, the roller of door hanging plate 8 is promoted on landing door guide rail 5, and landing door 6 is opened normally. Can drive car door to open when opening floor door 6.

After the elevator stops, the sensor on the landing door lock 1 starts to scan. When the car is not on the floor, the sensor cannot detect the existence of the door knife, the switch KM2 and the coil KM2 are not closed, and the telescopic locking device 2 is in the locked state. If the landing door Lock 1 is normally opened as above, and when landing door 6 was opened to a certain distance, because stop device 3 interfered with telescopic locking device 2, landing door 6 was hindered and could not continue to open. If the operator really needs to enter the hoistway to operate, he can pull the unlocking rope 23 of the telescopic locking device 2 to compress the spring 22, and the telescopic pin 21 is retracted into the telescopic sleeve body 25 to open, and the landing door 6 can be fully opened. When the landing door 6 is closed again, the slope of the telescopic pin 21 retracts into the telescopic sleeve body 25 when in contact with the stop device 3, and the landing door 6 is normally closed.

When the landing door 6 is completely closed and the landing door lock 1 is closed, as shown in Figure 5, the landing door lock switch KM1 is closed, the KM1 coil is energized, the normally closed switch KM1 is disconnected, the KM2 coil is de-energized, the KM2 switch is disconnected, and the telescopic pin 21 Under the action of the spring 22, the locked state is restored. At this time, the first paddle 10 has left the first unlocking lever 20, the jog switch 19 is disconnected, and the coil KM1 is still energized.

Action process under abnormal conditions:

When the operator used a triangular key outside the hall to insert the triangular lock assembly 18 of the main floor door to unlock, the jog switch 19 was closed when the first plectrum 10 was in contact with the first unlocking lever 20, and the indicator light 12 was on. Can not continue to open for any of these reasons, the landing door lock 1 switch KM1 is always closed, the indicator light 12 keeps working, or the triangular key cannot be turned after the triangular key is inserted, which proves that the landing door lock 1 has not been opened. As shown in Figure 6, at this time the operator can rotate the inserted triangular key in another direction to drive the first paddle 10 to rotate clockwise, and the first paddle 10 drives the second unlocking lever 7 to rotate clockwise, thereby Make landing door lock 1 open. Or as shown in Figure 7, at this time the operator can insert the triangular key from the auxiliary floor door triangular lock assembly 14 of the auxiliary unlocking device, drive the second plectrum 13 to rotate clockwise, and the second plectrum 13 drives the unlocking lever 15 to rotate counterclockwise , when the unlocking roller 11 is in contact with the unlocking link 26, the unlocking link 26 is driven to lift the lock hook, so that the floor door lock 1 is opened. The action principle of the landing door opening protection device is the same as above.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above, and the principles and implementation modes of the embodiments of the present invention have been explained by using specific examples in this paper. The descriptions of the above embodiments are only applicable to help understand the embodiments of the present invention At the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. A landing door with an opening protection function, comprising a landing door upper sill, a door hanging plate, a landing door lock, and a landing door, the landing door is connected to the landing door upper sill through a door hanging hanging plate, the The landing door lock is arranged on the door hanging plate, and it is characterized in that the landing door lock is provided with a lock body and a rotation center, and a main unlocking device is provided on the landing door close to the rotation center, and the main unlocking device includes The triangular lock assembly of the main floor door and the main unlocking lever. One end of the main unlocking lever is fixed on the rotation center. The main unlocking lever includes a first main unlocking lever and a second main unlocking lever. One end of the main unlocking lever is installed on the end of the lock hook near the rotation center, that is, the long arm, and one end of the second main unlocking lever is installed on the short arm of the rotation center, and the triangular lock assembly of the main floor door rotates to drive the main unlocking lever Lift up the lock hook at the center of rotation to open the floor door lock; A protection device for opening the landing door is also provided, and the protection device for opening the landing door includes a sensor, a telescopic locking device, and a limiting device. The telescopic locking device is arranged on the door hanging plate, and the limiting device is arranged on the landing door. On the hurdle. 2. A landing door with an opening protection function according to claim 1, wherein the triangular lock assembly of the main landing door includes a first paddle, and the first main unlocking lever is linear, so The second main unlocking lever is bent, and the free ends of the first main unlocking lever and the second main unlocking lever are staggered and do not touch each other. 3 . The landing door with opening protection function according to claim 2 , wherein the first paddle is stepped, and the short arm of the rotation center is connected with a drawing rope of the landing door lock. 4 . 4. A landing door with an opening protection function according to claim 2, wherein the telescopic locking device comprises a telescopic sleeve body, a spring is installed in the telescopic sleeve body, and a telescopic pin is connected to the upper end of the spring, The side of the retractable pin facing the closing direction of the landing door is an inclined plane, the lower end of the telescopic pin is connected with an electromagnet, and a switch circuit of an unlocking protection device is also provided. The electromagnet is located in the switching circuit of the unlocking protection device, and the sensor is arranged on When the door is locked or on the car, after the sensor senses the leveling floor, the electromagnet is energized to pull down the telescopic pin, and the unlocked landing door opens smoothly. 5. A landing door with an opening protection function according to claim 4, wherein an unlocking rope is connected to the bottom of the telescopic pin. 6. A landing door with an opening protection function according to claim 4, wherein the landing door is provided with a detection system, including a landing door lock switch circuit, and the landing door lock switch circuit is provided with an indicator light and a jog switch, the indicator light is arranged on the landing door, the contact of the jog switch is located on the free end of the first unlocking lever, the connecting part of the jog switch is on the first paddle, and the first paddle When contacting with the first unlocking lever, the jog switch can be touched, and the indicator light is on. 7 . A landing door with an opening protection function according to claim 6 , wherein the switching circuit of the unlocking protection device and the landing door lock switching circuit are in an interlocking relationship. 8. A landing door with opening protection function according to claim 1, characterized in that, a secondary unlocking device is also provided, including a triangular lock assembly of the secondary landing door, a rotating shaft, an unlocking lever, an unlocking roller, and an unlocking link, The auxiliary landing door triangular lock assembly is arranged on the landing door close to the lock body, the unlocking lever is connected to the door hanging plate where the lock body is located through a rotating shaft, and the unlocking roller is fixed on the unlocking The upper end of the lever, one end of the unlocking link is rigidly connected to the end of the lock hook near the rotation center, and the other end is connected to the unlocking roller, and the unlocking lever is driven to rotate by the triangular lock assembly of the auxiliary landing door to lift the unlocking link and rotate Center shackle. 9 . The landing door with opening protection function according to claim 8 , wherein the triangular lock assembly of the auxiliary landing door includes a second pick piece. 10 . 10 . The landing door with an opening protection function according to claim 9 , wherein the unlocking lever is bent, and a first limit post and a second limit post are arranged between two ends thereof. 11 .