CN115009960A

CN115009960A - Electromagnetic layer locking door of construction elevator and control method thereof

Info

Publication number: CN115009960A
Application number: CN202210800984.6A
Authority: CN
Inventors: 朱磊; 朱丹阳; 刘海华; 曾云义; 郑新亮
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-09-06

Abstract

The application provides an electromagnetic layer locking door of a construction elevator and a control method thereof, and the electromagnetic layer locking door comprises the construction elevator, a layer door and a control system for controlling the construction elevator and the layer door, wherein the layer door comprises a door frame, a door body, a rotation stopping structure, a locking device and an elastic piece; the rotating stopping structure is rotationally arranged on the door frame and is provided with a first locking position and a first unlocking position, and when the rotating stopping structure is locked at the first locking position, the locking device can lock the rotating stopping structure under the action of the elastic force of the elastic piece to limit the door body to rotate on the door frame; when the locking device is locked, the locking device outputs a first locking signal, and the control system can control the operation of the construction hoist; the invention can lock or unlock the landing door of the construction elevator without the operation of a special person, and the construction elevator can not run if the landing door is not locked in place and can be manually unlocked by a special tool in an emergency.

Description

Electromagnetic layer locking door of construction elevator and control method thereof

Technical Field

The invention relates to the technical field of constructional engineering, in particular to an electromagnetic floor locking door of a construction elevator and a control method thereof.

Background

The construction hoist is a special device which is driven by power, is temporarily installed, is used by building construction site personnel, is provided with a suspension cage and can stop at each layer station for service. And the landing door at the entrance of each landing is a safety door provided at each landing position on the building for securing the safety of the operation of the elevator and the safety of the user. It is therefore important to ensure that all landing doors are in the closed and locked position to enable or maintain the cage in operation.

The traditional construction elevator landing door is locked by a bolt lock. The bolt lock is arranged on one side of the cage door and is locked and unlocked by a construction elevator operation driver. The construction hoist is restarted after the construction hoist operator checks that the landing door is locked.

However, the traditional construction elevator simply depends on an operator to manually check whether the layer door is locked or not, and potential safety hazards exist; in addition, the intelligent construction elevator operated by no specially-assigned person is applied more and more, and the traditional landing door cannot meet the current use requirement. If the automatic calling function in the prior art is used, if an unmanned cage in the cage automatically runs to the floor, the traditional landing door cannot be opened, and personnel cannot enter the cage.

Disclosure of Invention

The invention provides an electromagnetic locking landing door of a construction elevator and a control method thereof, which can lock or unlock the landing door of the construction elevator without special operation, and can be manually unlocked by a special tool in an emergency situation when the construction elevator cannot run if the landing door is not locked in place.

In order to achieve the above object, the present invention provides an electromagnetic locking landing door for a construction elevator, comprising a construction elevator, a landing door and a control system for controlling the construction elevator and the landing door, wherein the landing door comprises a door frame, a door body, a rotation stopping structure, a locking device and an elastic member; the locking device is used for locking and unlocking the rotation stop structure; the locking device automatically locks the rotation stopping structure under the action of the elastic force of the elastic piece.

The door body is rotationally arranged on the door frame, the rotation stopping structure is rotationally arranged on the door frame, and the rotation stopping structure is provided with a first locking position and a first unlocking position on the door frame; the locking device and the elastic piece are respectively arranged on one side, located on the rotary stopping structure, of the door frame, the elastic piece is connected with the locking device, and when the rotary stopping structure is locked and located at the first locking position, the locking device can lock the rotary stopping structure under the elastic force action of the elastic piece to limit the door body to rotate on the door frame.

When the locking device is locked, the locking device outputs a first locking signal to the control system, and the control system can control the operation of the construction hoist.

Furthermore, the locking device comprises a transmission rod, a manual rod and a lock tongue, the transmission rod is movably arranged on the door frame, the transmission rod and the lock tongue are respectively and fixedly connected with the manual rod, and the lock tongue is provided with a second locking position and a second unlocking position; when the bolt is located at the second locking position, the rotation stopping structure located at the first locking position can be locked.

One end of the elastic piece is abutted against the doorframe, and the other end of the elastic piece is abutted against the transmission rod; under the action of the elastic force of the elastic piece, the transmission rod drives the lock tongue to move towards the direction of the rotary stopping structure, and at the moment, the lock tongue is located at a second locking position.

When the locking device needs to unlock the rotary stopping structure, the manual rod is poked to drive the transmission rod, and the lock tongue is driven to move to a second unlocking position.

Further, the locking device further comprises a first sensor, wherein the first sensor is used for detecting the position of the lock tongue; when the first sensor detects that the lock tongue is located at the second locking position, the first sensor outputs a first locking signal to the control system.

Further, the landing door further comprises a second sensor, the second sensor is arranged on the door frame and located on one side of the rotation stopping structure, and when the second sensor detects that the rotation stopping structure is located at the first locking position, the second sensor outputs a second locking signal to the control system.

Furthermore, the locking device also comprises a return seat, and the return seat is arranged on one side of the transmission rod; the return seat is provided with a lock cylinder, the lock cylinder is in transmission connection with the transmission rod, and when the lock on the rotary stop structure needs to be released, the lock cylinder is rotated through a key matched with the lock cylinder to drive the lock tongue to move to a second unlocking position.

Furthermore, the locking device further comprises a limiting part arranged on the transmission rod, and the first sensor judges the position of the lock tongue through the position of the limiting part.

Further, the rotation stopping structure comprises a stopping block, a locking piece and a rotating shaft; the rotating shaft and the locking piece are fixedly connected to the stop block, and the rotary stop structure is rotatably arranged on the door frame through the rotating shaft.

The door frame is provided with a locking lug plate used for locking the locking piece, and when the locking piece is positioned on one side of the locking lug plate, the rotary stopping structure is positioned at the first locking position; when the rotation stopping structure is located at the first locking position, the lock tongue is driven to move and the locking piece is locked on the locking lug plate, and at the moment, the lock tongue is located at the second locking position.

Furthermore, the locking device also comprises an electromagnet, and the lock tongue and the transmission rod are respectively and fixedly connected with the electromagnet; when the electromagnet is electrified, the electromagnet drives the lock tongue to move to a second unlocking position.

The present invention also provides a control method of a construction elevator electromagnetic landing door, including a control system for controlling the construction elevator electromagnetic landing door and the construction elevator according to any one of claims 1 to 8, and a construction elevator, the method including: and when the construction elevator runs to a target landing door, the locking device is controlled to unlock, the control system cannot detect the first locking signal at the moment, and the control system cannot control the construction elevator to run at the moment.

Further, the method specifically includes: when the rotation stopping structure is located at the first locking position, the second sensor outputs a second locking signal to the control system to control the locking device to lock and output the first locking signal, and at the moment, the control system detects the first locking signal and the second locking signal simultaneously to control the operation of the construction hoist.

The invention has the beneficial effects that:

1. the locking device can automatically lock the rotary stopping structure positioned at the first locking position under the driving of the elastic action of the elastic piece, and can lock or unlock the landing door without the operation of a specially-assigned person; meanwhile, the construction hoist can be started to operate only when a first locking signal output by the locking device is detected by a control system; if the control system does not detect the first locking signal, the control system cannot control the construction elevator to normally operate, the construction elevator is prevented from being started to operate when a landing door is not closed, and the safety of the construction elevator is improved.

2. This application detects rotatory backstop structure through the second sensor and whether is located first locking position, when the second sensor detects rotatory backstop structure and is located first locking position, rethread control system control locking device control spring bolt locks the locking piece afterwards, can guarantee like this that the spring bolt can be accurate with the locking piece locking, improves construction elevator's operation security.

3. This application detects the current position state of spring bolt through first position sensor, judges that the spring bolt is located second latched position or second unblock position at present, like this, can accurately judge that the spring bolt is in the locking or unblock state.

4. This application is through setting up manual lever in one side of transfer line, and the accessible is stirred manual lever drive spring bolt and is followed second latched position is adjusted to second latched position, can manual unblock construction elevator's layer door under emergency such as outage, improves construction elevator's security.

5. This application is through setting up the lock core of being connected with the transfer line transmission, and the accessible uses the key manual rotation lock core with the lock core adaptation, and the drive spring bolt is followed second latched position is adjusted to the second unblock position, can manual unblock construction elevator's layer door under emergency such as outage, improves construction elevator's security.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a perspective view illustrating an angle of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of another angle according to an embodiment of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a of fig. 1.

Fig. 4 is a schematic front view of an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view at B-B in fig. 4.

Fig. 6 is a partially enlarged schematic view of C in fig. 5.

Fig. 7 is a schematic view of a locking device of an embodiment of the present invention mounted on a mounting body.

Fig. 8 is a partially enlarged view of fig. 7 at D.

Fig. 9 is a perspective view of a door frame according to an embodiment of the present invention.

Fig. 10 is a perspective view of a rotation stop structure in an embodiment of the invention.

Fig. 11 is a perspective view of a locking device in an embodiment of the invention.

Fig. 12 is a partial schematic view of a locking device in an embodiment of the invention mounted on a mounting body.

Reference numerals: 1. a door frame; 11. a locking lug plate; 12. mounting an ear plate; 13. mounting the main body; 2. a rotation stop structure; 21. a stop block; 22. a rotating shaft; 23. a locking member; 24. connecting blocks; 3. a door body; 4. a locking device; 40. a base; 401. a guide member; 41. an electromagnet; 42. a latch bolt; 43. a transmission rod; 44. an elastic member; 45. a manual lever; 46. a first position sensor; 461. a contact; 47. a limiting member; 48. a return seat; 481. a lock cylinder; 482. rotating the rod; 483. a return connecting rod; 5. a second sensor; 6. and (6) unlocking the hole.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

As shown in fig. 1 to 12, the present invention provides an electromagnetic locking landing door for a construction elevator, which comprises a construction elevator, a landing door and a control system for controlling the construction elevator and the landing door, wherein the landing door comprises a door frame 1, a door body 3, a rotation stopping structure 2, a locking device 4 and an elastic member 44; the locking device 4 is used for locking and unlocking the rotation stop structure 2; the locking device 4 automatically locks the whirl-stop structure 2 by the elastic force of the elastic member 44.

Wherein the control system (not shown in the figure) is electrically connected to the construction hoist and the locking device 4, respectively.

The door body 3 is rotatably arranged on the door frame 1, and the rotation stopping structure 2 is provided with a first locking position and a first unlocking position on the door frame 1; the locking device 4 and the elastic member 44 are respectively disposed on one side of the door frame 1, which is located on the rotation stopping structure 2, the elastic member 44 is connected to the locking device 4, and when the rotation stopping structure 2 is locked and located at the first locking position, the locking device 4 can lock the rotation stopping structure 2 under the elastic force of the elastic member 44, so as to limit the rotation of the door body 3 on the door frame 1.

When the locking device 4 is locked, the locking device outputs a first locking signal to the control system, and the control system can control the operation of the construction hoist.

With the above arrangement, on one hand, the locking device 4 can automatically lock the rotation stopping structure 2 located at the first locking position under the driving of the elastic action of the elastic member 44, so that the construction elevator can be locked or unlocked without special operation, and on the other hand, the construction elevator can be started to operate only when the control system detects the first locking signal output by the locking device 4; if the control system does not detect the first locking signal, the control system cannot control the construction elevator to normally operate, the construction elevator is prevented from being started to operate without closing a landing door, and the safety of the construction elevator is improved.

Further, the locking device 4 further comprises a transmission rod 43, a manual rod 45 and a latch bolt 42, the transmission rod 43 is movably arranged on the door frame 1, the transmission rod 43 and the latch bolt 42 are respectively and fixedly connected with the manual rod 45, and the latch bolt 42 has a second locking position and a second unlocking position; when the latch tongue 42 is in the second locking position, the rotation-stopping structure 2 in the first locking position can be locked;

one end of the elastic piece 44 abuts against the doorframe 1, and the other end of the elastic piece 44 abuts against the transmission rod 43; under the action of the elastic force of the elastic element 44, the transmission rod 43 drives the latch tongue 42 to move towards the direction of the rotation stopping structure 2, and at this time, the latch tongue 42 is located at the second locking position;

when the locking device 4 needs to unlock the rotation stopping structure 2, the manual lever 45 is toggled to drive the transmission rod 43, so as to drive the latch 42 to move to the second unlocking position.

Specifically, the locking device further comprises a base 40; the transmission rod 43 is movably arranged on a door frame through the base 40, a guide part 401 for movably mounting the transmission rod 43 is arranged on the base 40, and a through hole is formed in the guide part 401 corresponding to the transmission rod 43; the elastic member 44 is a spring, one end of which abuts against the guide 401, and the other end of which abuts against the transmission lever 43.

With the above arrangement, on one hand, the latch tongue 42 can be driven to automatically move from the second locking position to the second locking position by the transmission of the transmission rod 43 under the elastic action of the elastic member 44, so as to automatically lock the rotation stopping structure 2; on the other hand, when the rotation stopping structure 2 needs to be unlocked, the manual lever 45 is toggled, the transmission rod 43 is used for transmission, the bolt 42 located at the second locking position is moved to the second unlocking position, the unlocking of the landing door of the construction elevator can be manually completed, and the landing door of the construction elevator can be manually opened even in emergency situations such as power failure.

Further, the locking device 4 includes a first sensor 46 disposed at one side of the transmission rod 43, and the first sensor 46 is used for detecting the position of the latch tongue 42; when the first sensor 46 detects that the latch bolt 42 is in the second locked position, the first sensor 46 outputs a first lock signal to the control system.

Further, the door lock further comprises a second sensor 5, wherein the second sensor 5 is arranged on the door frame 1 and located on one side of the rotation stopping structure, and is used for detecting whether the rotation stopping structure is located at the first locking position; when the second sensor detects that the whirl-stop structure 2 is located at the first lock position, the second sensor 5 outputs a second lock signal to the control system.

According to the arrangement, when the control system detects the second locking signal, the control system judges that the rotation stopping structure is located at the first locking position, and then controls the spring bolt to move to the second locking position, so that the spring bolt can accurately lock the rotation stopping structure at the first locking position, the situation that the rotation stopping structure is driven to move to the second locking position when the rotation stopping structure is at the first unlocking position is avoided, and the rotation stopping structure cannot be accurately locked at the first locking position is avoided.

Further, as shown in fig. 11 to 12, the locking device 4 further includes a return seat 48, and the return seat 48 is disposed on a side of the transmission rod 43 away from the rotation stop structure 2; the return seat 48 is rotatably provided with a lock core 481, the lock core 481 is in transmission connection with the transmission rod 43, and when the lock of the rotation stopping structure 2 needs to be released, the lock core 481 is rotated by a key matched with the lock core 481, so that the lock tongue 42 is driven to move to a second unlocking position, namely, to move in a direction away from the rotation stopping structure 2.

Specifically, a rotating rod 482 and a return connecting rod 483 are further arranged on the return seat 48, the lock cylinder 481 and the rotating rod 482 are coaxially and rotatably arranged on the return seat 48, the lock cylinder 481 is fixedly connected with the rotating rod 482, one end of the rotating rod 482 is hinged to one end of the return connecting rod 483, and the other end of the return connecting rod 483 is hinged to one end, far away from the electromagnet 41, of the driving rod 43; the return connecting rod 483 is driven by rotating the lock cylinder 481, so that the transmission rod 43 is pulled to drive the lock tongue 42 to be adjusted from the second locking position to the second unlocking position, or from the second unlocking position to the second locking position, so that the lock tongue 42 is far away from the rotation stopping structure, and the landing door is manually locked or unlocked by a key matched with the lock cylinder 481.

In particular, the lock core 481 may be adapted with a triangular universal key.

Further, as shown in fig. 8, the locking device 4 further includes a limiting member 47 disposed on the transmission rod 43, the first sensor 46 is disposed on one side of the limiting member 47, the first sensor 46 determines the position of the lock tongue 42 by obtaining the position of the limiting member 47, and when the lock tongue 42 is located at the second locking position, the first sensor outputs a first locking signal to the control system.

Specifically, a through hole is formed in the limiting member 47 corresponding to the transmission rod 43, and the transmission rod 43 passes through the through hole in the limiting member 47 and is fixedly connected with the limiting member 47; the limit switch is provided with a contact 461 and a return spring (not shown in the figure) for returning the contact 461, the contact 461 abuts against one side of the limiting member 47 under the elastic action of the return spring, and the contact 461 of the limit switch rotates along with the movement of the limiting member 47.

When the lock tongue 42 moves from the second unlocking position to the second locking position, the driving rod 43 drives the stopper 47 to move, and meanwhile, the contact 461 moves together with the stopper 47 under the elastic action of the return spring, and when the lock tongue 42 is located at the second locking position, the limit switch outputs a first locking signal to the control system.

In contrast, when the latch 42 moves from the second locking position to the second unlocking position, the driving rod 43 drives the limiting member 47 to move, and the limiting member 47 pushes the contact 461 abutted against the limiting member 47, and when the locking position 4 is located at the second locking position, the limiting switch outputs a first unlocking signal to the control system.

With the arrangement, the control system can acquire the current position information of the bolt 42 in real time and judge whether the bolt 42 works normally, so that the safety is improved.

Further, as shown in fig. 3 and 10, the rotation stopping structure 2 includes a stopping block 21, a locking member 23, and a rotating shaft 22; the rotating shafts 22 are welded on two sides of the stop block 21, the locking pieces 23 are welded on the middle position of the stop block 21, and the rotation stopping structure 2 is rotatably arranged on the door frame through the rotating shafts 22; a locking lug plate 11 for locking the locking piece 23 is arranged on the door frame, and when the locking piece 23 is positioned on one side of the locking lug plate 11, the rotation stopping structure 2 is positioned at the first locking position; when the rotation-stopping structure 2 is located at the first locking position, the locking tongue 42 can be driven to move and lock the locking member 23 on the locking ear plate 11, and at this time, the locking tongue 42 is located at the second locking position, and the second sensor 5 outputs a second locking signal to the control system.

Specifically, a locking groove is formed in the door frame 1 corresponding to the locking member 23, when the locking tongue 42 is located at the second unlocking position, the door body 3 can be pushed to rotate, the door body 3 further pushes the rotation stopping structure 2 to turn upwards around the rotating shaft 22, the rotation stopping structure 2 rotates from the first locking position to the first unlocking position, and meanwhile, the locking member 23 penetrates through the locking groove.

In this embodiment, as shown in fig. 3, a connecting block 24 is further arranged on the door frame 1, the connecting block 24 is fixedly welded on the door frame 1 and located above the door body 3, one end of the rotating shaft 22 is hinged on the connecting block 24, and the other end of the rotating shaft 22 is welded on the stopping block 21. When the rotation stopping structure 2 is located at the first locking position, the stopping block 21 abuts against the upper end of the door body 3.

Further, the locking device 4 further comprises an electromagnet 41, and the bolt 42 and the transmission rod 43 are respectively and fixedly connected with the electromagnet 41; when the electromagnet 41 is powered on, the electromagnet 41 drives the lock tongue 42 to move to the second unlocking position.

As shown in fig. 5, the rotation stop is at the first locking position, and the arrow in the figure is the rotation direction of the rotation stop structure 2 when rotating from the first locking position to the first unlocking position.

Specifically, the door frame 1 includes an installation body 13 disposed at an upper end of the door frame 1, the whirl-stop structure 2 is installed on the installation body 13, and the locking device 4 is installed at one side of the installation body 13 located at the whirl-stop structure 2.

Specifically, the electromagnet 41 is a push-pull electromagnet 41 and comprises a coil, a static iron core and a movable iron core, wherein the coil is arranged around the static iron core, the movable iron core is arranged on one side of the static iron core, one end of the movable iron core is fixedly connected with the bolt 42, and the other end of the movable iron core is fixedly connected with the end of the transmission rod 43.

In this embodiment, one end of the transmission rod 43 is fixedly connected to the movable iron core of the electromagnet 41, and the other end of the transmission rod 43 sequentially passes through the spring and the through hole of the guide 401; the limiting member 47 is disposed at one end of the transmission rod 43 close to the electromagnet 41, one end of the elastic member 44 abuts against the guide member 401, and the other end of the spring abuts against the limiting member 47. When the transmission rod 43 drives the lock tongue 42 to move to the second unlocking position, the limiting member 47 compresses the spring.

In this embodiment, the control system adjusts the position of the latch 42 by controlling the energization of the coil, and when the electromagnet 41 is de-energized, the transmission rod 43 is pushed by the elasticity of the elastic element 44, so as to push the latch 42 to the second locking position; when the electromagnet 41 is powered on, magnetism is generated outside the electromagnet around the static iron core provided with the coil, the static iron core drives the movable iron core to move, and the movable iron core overcomes the elastic force of the spring under the action of the magnetic force to drive the bolt 42 to move to the second unlocking position.

Specifically, the return seat 48 is fixedly mounted on the base 40. In this embodiment, the lock pin 481 is disposed on a side of the door frame 1 away from the construction hoist.

Specifically, the locking lug plate 11 is two plate bodies arranged at an interval, when the rotation stopping structure 2 is located at a first locking position, the locking piece 23 is located in the interval of the locking lug plate 11, and through holes are respectively and correspondingly arranged on the locking lug plate 11 and the locking piece 23 corresponding to the lock tongue 42; the locking device 4 is arranged on one side of the door frame 1, which is positioned on the locking lug plate 11; when the rotation stopping structure 2 is located at the first locking position, the locking piece 23, the through hole in the locking lug plate 11 and the locking tongue 42 are located on the same axis, the second sensor 5 can detect a signal of the locking piece 23 and output a second locking signal to the control system, the control system disconnects the electromagnet, and the transmission rod pushes the locking tongue to push the locking tongue from the second unlocking position to the second locking position by pushing the limiting piece on the transmission rod under the action of the elastic force of the spring and then is respectively inserted into the through hole in the locking lug plate 11 and the through hole in the locking piece 23; at this moment, the first sensor can detect the position of the lock tongue according to the position of the limiting part, judge that the lock tongue is currently located at a second unlocking position or a second locking position, and then output a first unlocking signal or a first locking signal to the control system according to the situation.

The second sensor 5 may be a proximity switch or an infrared sensor; in the present embodiment, the second sensor 5 is a proximity switch, which is a prior art and will not be described in detail herein.

In this embodiment, the door frame 1 is further provided with a mounting lug plate 12 for mounting the second sensor 5, and the mounting lug plate 12 is arranged on the mounting main body 13; the mounting ear plate 12 is plate-shaped, and a mounting hole for mounting the second sensor is formed in the mounting ear plate 12; when the locking piece 23 moves to the locking position of the locking lug plate 11, the second sensor 5 can detect a signal of the locking piece 23 and output a signal to the control system, the control system confirms that the rotation stopping structure is at the first locking position, and then the locking bolt is controlled to move to the second locking position, so that the locking bolt can be accurately inserted into the locking piece 23 and the locking lug plate. With the above arrangement, the control system firstly judges whether the locking member 23 is in the locking position through the second sensor 5, and then controls the electromagnet 41 to control the locking member 23; therefore, the control system can determine that the locking piece 23 is located at the first locking position, then control the electromagnet 41 to control the locking bolt 42 to move to the second locking position, so that the locking piece 23 is locked, the locking bolt 42 can be guaranteed to be accurately locked on the locking piece 23, and the control system can judge whether the landing door is safely locked or not through the first locking signal and the second locking signal output by the first sensor 46 and the second sensor 5, so that the safety of the construction elevator is greatly improved.

In this embodiment, when a power failure occurs or the electromagnet fails, the manual lever 45 is toggled, and the transmission rod 43 adjusts the latch 42 between the second locking position and the second unlocking position, so as to manually lock or unlock the construction elevator landing door.

Specifically, as shown in fig. 12, the base 40 is provided with a guide groove corresponding to the manual lever 45, and in this embodiment, the manual lever 45 is provided on a side of the door frame 1 close to the construction hoist. The length direction of the guide groove is the same as the length direction of the transmission rod 43, and the manual lever 45 is movably disposed in the guide groove. The manual lever 45 is disposed on one side of the door frame 1 close to the construction hoist, and the guide groove is disposed on one side of the door frame 1 close to the construction hoist.

In this embodiment, one end of the transmission rod 43, which is far away from the electromagnet 41, passes through the through hole on the guide 401 and then is hinged to the return link 483; an unlocking hole 6 is formed in the door frame 1 corresponding to the lock cylinder 481, so that the key can be conveniently inserted into the lock cylinder 481 through the door frame 1.

As shown in fig. 1 to 12, the present invention further provides a control method of the electromagnetic floor-locking door of the construction elevator, which comprises the construction elevator, the electromagnetic floor-locking door of the construction elevator and a control system for controlling the electromagnetic floor-locking door of the construction elevator and the construction elevator.

The landing door comprises a door frame 1, a door body 3, a rotation stopping structure 2, a locking device 4 and an elastic piece 44; the locking device 4 is used for locking or unlocking the rotation stop structure 2; the locking device 4 automatically locks the rotation-stopping structure 2 under the elastic force of the elastic member 44; the door body 3 is rotatably arranged on the door frame 1, and the rotation stopping structure 2 is provided with a first locking position and a first unlocking position on the door frame 1; the locking device 4 and the elastic member 44 are respectively disposed on one side of the door frame 1, which is located on the rotation stopping structure 2, the elastic member 44 is connected to the locking device 4, and when the rotation stopping structure 2 is locked and located at the first locking position, the locking device 4 can lock the rotation stopping structure 2 under the elastic force of the elastic member 44, so as to limit the rotation of the door body 3 on the door frame 1.

The locking device 4 is arranged on the door frame 1, when the locking device 4 is locked, the locking device 4 outputs a first locking signal to the control system, and the control system can control the operation of the construction hoist.

The door frame 1 is provided with a locking lug plate 11; a locking piece 23 is arranged on the rotation stopping structure 2 corresponding to the locking lug plate 11; the locking device 4 is arranged on one side of the door frame 1, which is positioned on the locking lug plate 11; the locking device 4 comprises a base 40 and an electromagnet 41; the electromagnet 41 is arranged at one end of the base 40, and a bolt 42 is arranged on the electromagnet 41; the latch tongue 42 can be controlled by the control electromagnet 41 to lock the rotation stop structure 2 in the first locking position.

The method comprises the following steps: and when the construction elevator runs to a target landing door, controlling the locking device 4 to unlock, wherein the control system cannot detect the first locking signal at the moment, and cannot control the construction elevator to run at the moment.

In the method, on one hand, the locking device 4 can automatically lock the rotation stopping structure 2 located at the first locking position under the driving of the elastic action of the elastic member 44, so that the construction elevator can be locked or unlocked without special operation, and on the other hand, the construction elevator can be started to operate only when the control system detects the first locking signal output by the locking device 4; if the control system does not detect the first locking signal, the control system cannot control the construction elevator to normally operate, the construction elevator is prevented from being started to operate when a landing door is not closed, and the safety of the construction elevator is improved.

Specifically, the locking device further comprises an electromagnet 41, and the bolt 42 and the transmission rod 43 are respectively and fixedly connected with the electromagnet 41; when the electromagnet 41 is powered on, the electromagnet 41 drives the lock tongue 42 to move to the second unlocking position. When the construction elevator runs to a target landing door, the control system starts the electromagnet 41 to drive the bolt 42 to unlock; the door body 3 is pushed to be opened, the second sensor 5 cannot detect the locking piece 23 at the moment, signals are output to the control system, the landing door is judged to be opened, and the control system cannot control the operation of the construction elevator at the moment.

Further, the method specifically further comprises: when the rotation stopping structure 2 is located at the first locking position, the second sensor 5 outputs a second locking signal to the control system, controls the locking device 4 to lock and output the first locking signal, and at the moment, the control system detects the first locking signal and the second locking signal simultaneously, and can control the operation of the construction hoist.

Specifically, when the second sensor 5 detects the locking member 23, the control system may disconnect the electromagnet 41, the locking tongue 42 locks the locking member 23 under the action of the elastic member 44, the locking tongue position sensor 46 outputs a locking signal of the locking tongue 42, and after the control system respectively obtains a signal that the locking member 23 is located at the first locking position and a locking signal of the locking tongue 42, the control system may control the operation of the construction elevator; thus, the safety of the construction hoist can be improved, and the construction hoist can be prevented from being operated without closing the door body 3.

Any combination of the various embodiments of the present invention should be considered as disclosed in the present invention, unless the inventive concept is contrary to the present invention; within the scope of the technical idea of the invention, any combination of various simple modifications and different embodiments of the technical solution without departing from the inventive idea of the present invention shall fall within the protection scope of the present invention.

Claims

1. The electromagnetic locking landing door for the construction elevator comprises the construction elevator, a landing door and a control system for controlling the construction elevator and the landing door, and is characterized in that the landing door comprises a door frame, a door body, a rotation stopping structure, a locking device and an elastic piece; the locking device is used for locking and unlocking the rotation stop structure; the locking device automatically locks the rotation stopping structure under the action of the elastic force of the elastic piece;

the door body is rotationally arranged on the door frame, the rotation stopping structure is rotationally arranged on the door frame, and the rotation stopping structure is provided with a first locking position and a first unlocking position on the door frame; the locking device and the elastic piece are respectively arranged on one side, located on the rotation stopping structure, of the door frame, the elastic piece is connected with the locking device, and when the rotation stopping structure is locked and located at the first locking position, the locking device can lock the rotation stopping structure under the action of the elastic force of the elastic piece to limit the door body to rotate on the door frame;

2. The electromagnetic floor-locking door for a construction elevator as claimed in claim 1, wherein the locking device comprises a transmission rod, a manual rod and a latch bolt, the transmission rod is movably disposed on the door frame, the transmission rod and the latch bolt are respectively fixedly connected to the manual rod, and the latch bolt has a second locking position and a second unlocking position; when the bolt is located at the second locking position, the rotation stopping structure located at the first locking position can be locked;

one end of the elastic piece is abutted against the doorframe, and the other end of the elastic piece is abutted against the transmission rod; under the action of the elastic force of the elastic piece, the transmission rod drives the lock tongue to move towards the direction of the rotary stopping structure, and the lock tongue is located at a second locking position at the moment;

3. The electromagnetic floor-locking door for a construction elevator as set forth in claim 2, wherein the locking device further comprises a first sensor for detecting a position of the locking tongue; when the first sensor detects that the lock tongue is located at the second locking position, the first sensor outputs a first locking signal to the control system.

4. The electromagnetic floor locking door for a construction elevator according to claim 2, wherein the door further comprises a second sensor provided in a door frame and located at one side of the whirl-stop structure, the second sensor being configured to detect whether the whirl-stop structure is located at the first locking position; when the second sensor detects that the rotation stop structure is located at the first locking position, the second sensor outputs a second locking signal to the control system.

5. The electromagnetic floor locking door for a construction elevator according to claim 3, wherein the locking device further comprises a restoring seat provided at one side of the driving rod; the return seat is provided with a lock cylinder, the lock cylinder is in transmission connection with the transmission rod, and when the lock on the rotary stop structure needs to be released, the lock cylinder is rotated through a key matched with the lock cylinder to drive the lock tongue to move to a second unlocking position.

6. The electromagnetic floor-locking door of a construction elevator as claimed in claim 3, wherein the locking device further comprises a stopper disposed on the driving rod, the first sensor is disposed at one side of the stopper, and the first sensor determines the position of the locking tongue by acquiring the position of the stopper.

7. The electromagnetic floor locking door for a construction elevator of claim 3, wherein the rotation stop structure comprises a stop block, a locking member and a rotation shaft; the rotating shaft and the locking piece are fixedly connected to the stop block, and the rotating stop structure is rotatably arranged on the door frame through the rotating shaft;

the door frame is provided with a locking lug plate used for locking the locking piece, and when the locking piece is positioned on one side of the locking lug plate, the rotary stopping structure is positioned at the first locking position; when the rotation stopping structure is located at the first locking position, the lock tongue is driven to move, the locking piece is locked on the locking lug plate, and the lock tongue is located at the second locking position.

8. The electromagnetic floor-locking door of a construction elevator as claimed in claim 6, wherein the locking device further comprises an electromagnet, and the latch bolt and the transmission rod are respectively fixedly connected to the electromagnet; when the electromagnet is electrified, the electromagnet drives the lock tongue to move to a second unlocking position.

9. A method of controlling a construction elevator electromagnetic landing door, comprising a control system for controlling the construction elevator electromagnetic landing door and the construction elevator as claimed in any one of claims 1 to 8, and a construction elevator, the method comprising: and when the construction elevator runs to a target landing door, the locking device is controlled to unlock, the control system cannot detect the first locking signal at the moment, and the control system cannot control the construction elevator to run at the moment.

10. The method for controlling the electromagnetic landing locking door of the construction elevator according to claim 9, wherein the method further comprises: when the rotation stopping structure is located at the first locking position, the second sensor outputs a second locking signal to the control system to control the locking device to lock and output the first locking signal, and at the moment, the control system detects the first locking signal and the second locking signal simultaneously to control the operation of the construction hoist.