CN114291707B - Elevator car door lock device and control method thereof - Google Patents
Elevator car door lock device and control method thereof Download PDFInfo
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Abstract
The invention provides an elevator car door lock device and a control method thereof, and belongs to the technical field of elevator accessories. The elevator car door lock device comprises a bottom plate, a hanging plate, a main hook component, a first stop component and a second stop component, wherein the main hook component and the first stop component are arranged on the bottom plate, and a secondary hook component is arranged on the hanging plate. The invention is provided with a main hook component, a first stopping component and a second stopping component, wherein a moving plate in the main hook component rotates under the action of the first driving component, the moving plate pushes a moving rod to ascend or descend, a main lock arm swings around a fulcrum in the middle of the main lock arm under the drive of the moving rod, so that a main lock hook is separated from an auxiliary lock hook or is mutually stopped with the auxiliary lock hook to realize locking, the pair of main lock arms of the stopping component play a role of stopping limit, the pair of moving rods of the stopping component play a role of stopping limit, and double stopping is realized on the main lock hook, so that a door lock device still keeps a locking state under the condition of taking off a door with larger external force.
Description
Technical Field
The invention relates to the technical field of elevator accessories, in particular to an elevator car door lock device and a control method thereof.
Background
With the implementation of a new national standard of GB7588, an elevator car door lock or an anti-theft device becomes a passenger safety protection device which is required to be configured so as to prevent passengers from taking off the car door in a non-unlocking area to generate a falling risk; for such a security device, which requires a large number of widespread applications, especially in passenger elevator applications with high floors and large door opening numbers, the reliability thereof becomes very important.
There are two solutions on the market today: the elevator door lock is integrated on a door knife of an elevator door machine, and is used for cooperating with an opening and closing mechanism of the door knife, and a matched device is not required to be arranged on a landing door device; the other is an independent car door lock device, and a matched auxiliary mechanism is required to be arranged on the landing sill; the two have advantages and disadvantages, the on-site installation and adjustment of the integrated car door lock on the first door knife are relatively simple, but the structure is generally complex, the application range is narrow, and the first door knife can only be matched with a specific landing door device; the independent car door lock is relatively long in installation time, high in installation requirement, flexible, high in adaptability and capable of being independently adapted to different door machines.
The Chinese patent with the authorized bulletin number of CN106185572B and the authorized bulletin day of 2018.05.11 provides an elevator car door lock device, which comprises a main lock hook component and an auxiliary hook component, wherein the main lock hook component comprises a bottom plate and a lock hook, the outer side surface of the lock hook is provided with an unlocking wheel, a swing arm is arranged between the bottom plate and the lock hook, and the swing arm is fixed on the bottom plate and can swing around a fixed point; one end of the lock hook is matched with the hook attaching component, the other end of the lock hook is rotationally connected with the free end of the swing arm through a pivot, a limiting rod penetrating through the swing arm is arranged on the inner side surface of the lock hook, and correspondingly, a limiting hole matched with the limiting rod to limit the moving direction of the lock hook is formed in the bottom plate; the main lock hook component further comprises a driving mechanism for driving the swing arm to swing towards the direction of the auxiliary hook component, and the auxiliary hook component abuts against the swing arm to prevent the swing arm from swinging during locking. The bridge door lock device can play a role in locking, but cannot guarantee the locking state of the lock hook and the auxiliary locking plate under the condition of taking off the door by external force in a non-unlocking area, so that the safety of an elevator is reduced.
In another example, the application publication number is CN111943009a, and the chinese patent application publication number is 2020.11.17 provides an elevator car door lock device and a control method thereof, the device includes a door knife bottom plate, a starting lever, a door knife arm assembly, a lock hook assembly, a crank swing assembly and a verification switch, the lock hook assembly includes a lock hook and an elastic mechanism, the crank swing assembly includes a rotating member, a lock hook unlocking shaft, a first connecting member, the verification switch includes a switch contact and a switch socket, the starting lever is used for pushing the door knife arm assembly to move when the lock hook is unlocked, the door knife arm assembly touches the lock hook unlocking shaft and drives the rotating member to rotate, the first connecting member drives the lock hook to rotate downwards when the rotating member rotates to unlock, and when the door knife arm assembly is separated from the lock hook unlocking shaft, the elastic mechanism releases potential energy, so that the lock hook rotates upwards to reset to realize locking. The elevator car door lock device has a narrow application range and can only be matched with a specific landing door device.
Disclosure of Invention
The invention aims to provide an elevator car door lock device, wherein a main lock hook in a main hook component swings under the action of a main lock arm until being connected with an auxiliary lock hook, a first main lock arm of a stop component stops and limits a second main lock arm of the stop component, and a second moving rod of the stop component stops and limits the main lock hook to realize double limiting, so that the door lock device still keeps a locking state under the condition of taking off a door by a large external force.
The invention provides an elevator car door lock device, which comprises a bottom plate, a hanging plate, a main hook component, a first stop component and a second stop component, wherein the main hook component and the first stop component are arranged on the bottom plate;
The main hook component comprises a main lock hook, a main lock arm, a moving rod, a moving plate and a first driving component, wherein the main lock arm is rotationally connected with the bottom plate, the moving rod is hinged with the main lock arm, the moving plate is abutted to the end part of the moving rod, the first driving component is used for driving the moving plate to rotate, a first arc-shaped part and a second arc-shaped part are arranged on the moving plate, and the middle part of the main lock arm is provided with a fulcrum which is rotationally connected with the bottom plate;
the auxiliary hook component comprises an auxiliary lock hook mutually stopped with the main lock hook and an auxiliary lock arm fixedly connected with the hanging plate.
As the preferable mode of the invention, the first stop component comprises a ratchet wheel fixedly connected with the pivot of the main lock arm and a stop pawl rotatably arranged on the bottom plate and provided with a swinging pivot, one end of the stop pawl is matched with the ratchet wheel, a first tension spring is arranged between the other end of the stop pawl far away from the ratchet wheel and the bottom plate, and the ratchet wheel is connected with the middle part of the main lock arm through a first connecting shaft.
Preferably, the second stop component comprises a first connecting rod hinged with the middle part of the motion rod, and a second connecting rod with one end hinged with the first connecting rod and the other end hinged with the bottom plate.
Preferably, the auxiliary lock hook is provided with an auxiliary lock hole for the main lock hook to be inserted, and the auxiliary lock hook is rotatably connected with a stop block.
Preferably, the stop block is connected with the auxiliary lock hook through a pin shaft, and a torsion spring for resetting the stop block is arranged on the pin shaft.
Preferably, at least a part of the stop block is arc-shaped.
Preferably, the first driving assembly comprises a first gear rotatably connected to the back surface of the bottom plate, a second gear in meshed transmission with the first gear, and a first motor for driving the second gear to rotate, and the first gear is connected with the bottom plate through a second connecting shaft.
Preferably, the edge of the motion plate is provided with a smooth layer.
Preferably, the motor one is electrically connected with the controller.
The invention also provides a control method of the elevator car door lock device, when the car is in an unlocking area and receives a door opening instruction, the driving component I drives the motion rod to move upwards, and one end of the main lock arm close to the auxiliary lock arm moves downwards around a fulcrum in the middle of the main lock arm, so that the main lock hook is separated from the auxiliary lock hook, unlocking is realized, and the car is normally opened;
When the car is in a non-unlocking area and receives a door closing instruction, the driving assembly I drives the motion rod to move downwards, and one end of the main lock arm close to the auxiliary lock arm moves upwards around a fulcrum in the middle of the main lock arm, so that the main lock hook hooks the auxiliary lock arm to realize locking, and the car is normally closed;
When the car is in a non-unlocking area and the door is taken off, the first driving component drives the motion rod to move downwards, one end of the main lock arm close to the auxiliary lock arm moves upwards around a fulcrum in the middle of the main lock arm, so that the main lock hook hooks the auxiliary lock arm to realize locking, the first stopping component plays a role in stopping and limiting the main lock arm, and the second stopping component plays a role in stopping and limiting the motion rod, so that the main lock hook and the auxiliary lock hook are kept in a locking state.
The elevator car door lock device has the following beneficial effects:
1. The invention is provided with a main hook component, a first stop component and a second stop component, wherein a moving plate in the main hook component rotates under the action of the first drive component, the moving plate pushes a moving rod to ascend or descend, a main lock arm swings around a fulcrum in the middle of the main lock arm under the drive of the moving rod, so that a main lock hook is separated from an auxiliary lock hook or is mutually stopped with the auxiliary lock hook to realize locking, the pair of main lock arms of the stop component play a role of stop limit, the second stop component plays a role of stop limit on the moving rod, double stop is realized on the main lock hook, the door lock device still keeps a locking state under the condition of taking off a door with larger external force, in addition, a first arc-shaped part and a second arc-shaped part are arranged on the moving plate, and if the main lock arm rotates under the action of external force, the distance from the arc-shaped edge of the second arc-shaped part to the center of the moving plate is slightly larger than the distance from the arc-shaped edge of the first arc-shaped part to the center of the moving plate, one end of the main lock arm, which is close to the auxiliary lock hook can slightly move downwards around the fulcrum in the middle of the main lock hook, so that the auxiliary lock hook is always hooked on the main lock hook, and the main lock hook is kept in a locking state, and the safety of an elevator is improved.
2. The locking assembly adopts the ratchet pawl mechanism, the ratchet is fixedly connected with the fulcrum at the middle part of the main lock arm, the ratchet also rotates along with the main lock arm in the process of rotating around the fulcrum at the middle part, but one end of the locking pawl is matched with the ratchet, a larger force is required to act on one end of the main lock arm, the ratchet rotates, the locking limit effect is achieved on the main lock arm, the locking stability of the main lock hook and the auxiliary lock hook is improved, and the whole structure is stable and reliable; in addition, the second stop component is a connecting rod component, when the moving rod moves to the lowest point, the main lock arm drives the main lock hook to be locked with the auxiliary lock hook, the first connecting rod and the second connecting rod form an approximate straight line, the moving rod is stopped and limited, the locking stability of the main lock hook and the auxiliary lock hook is improved, and the whole structure is further stable and reliable.
3. The auxiliary lock hook is provided with the auxiliary lock hole, so that the main lock hook can conveniently penetrate through the auxiliary lock hole and can be locked with the auxiliary lock hook, the auxiliary lock hook is rotatably connected with the stop block, the stop block can reset under the action of the torsion spring, the main lock hook can be stopped, the locking performance of the main lock hook and the auxiliary lock hook is improved, at least one part of the stop block is arc-shaped, the main lock hook can conveniently deviate from the auxiliary lock hook, and interference is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the invention. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.
Fig. 1 is a schematic structural view of an elevator car door lock device according to an embodiment of the present invention.
Fig. 2 is a front view of an elevator car door lock device according to an embodiment of the present invention.
Fig. 3 is a rear view of an elevator car door lock device according to an embodiment of the present invention.
Fig. 4 is a schematic connection diagram of the stopper and the auxiliary latch hook according to an embodiment of the invention.
100, A main hook assembly; 110. a primary latch hook; 120. a main lock arm; 130. a motion bar; 140. a motion plate; 141. a first arc-shaped portion; 142. a second arc-shaped portion; 150. a second gear; 160. a first gear; 170. a first motor; 200. a second stop component; 210. a first connecting rod; 220. a second connecting rod; 300. a first stop component; 310. a ratchet wheel; 320. a stopping pawl; 321. a first mounting post; 330. a first tension spring; 331. a second mounting post; 400. a secondary hook assembly; 410. an auxiliary latch hook; 411. a secondary lock hole; 420. an auxiliary locking arm; 430. a stop block; 431. a pin shaft; 432. a torsion spring; 500. a bottom plate; 600. and (5) hanging the plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.
Embodiment one: as shown in fig. 1 and 4, which are only one embodiment of the present invention, an elevator car door lock device includes a base plate 500, a hanging plate 600, a primary hook assembly 100 and a first stop assembly 300 provided on the base plate 500, and a second stop assembly 200, a secondary hook assembly 400 provided on the hanging plate 600; the main hook assembly 100 comprises a main hook 110, a main lock arm 120 rotatably connected with a bottom plate 500, a moving rod 130 hinged with the main lock arm 120, a moving plate 140 abutting against the end part of the moving rod 130, and a first driving assembly for driving the moving plate 140 to rotate, wherein a first arc-shaped part 141 and a second arc-shaped part 142 are arranged on the moving plate 140, and the middle part of the main lock arm 120 is provided with a fulcrum rotatably connected with the bottom plate 500; the sub-hook assembly 400 includes a sub-hook 410 that is caught by the main hook 110, and a sub-lock arm 420 fixedly coupled to the hanging plate 600.
In the present invention, the first driving assembly includes a first gear 160 rotatably connected to the back of the base plate 500, a second gear 150 meshed with the first gear 160, and a first motor 170 for driving the second gear 150 to rotate, wherein the first gear 160 is connected to the base plate 500 through a second connecting shaft. The second gear 150 is fixedly connected with the output shaft of the first motor 170. The first motor 170 is electrically connected to the controller. The first motor 170 drives the second gear 150 to rotate, the first gear 160 is meshed with the second gear 150 to drive, the second gear 150 rotates to drive the moving plate 140 to rotate, the moving plate 140 pushes the moving rod 130 to ascend or descend, the main locking arm 120 swings around a fulcrum in the middle of the main locking arm 120 under the drive of the moving rod 130, and the main locking hook 110 is separated from the auxiliary locking hook 410 or is mutually stopped with the auxiliary locking hook 410 to realize locking. The rim of the motion plate 140 is provided with a smooth layer. The friction between the edge of the moving plate 140 and the top end of the moving rod 130 is reduced, so that the precise transmission between the moving rod 130 and the moving plate 140 is realized. It should be noted that, if the first arc portion 141 and the second arc portion 142 are disposed on the moving board 140, the main lock arm 120 rotates under the action of external force, and the distance from the arc edge of the second arc portion 142 to the center of the moving board 140 is slightly greater than the distance from the arc edge of the first arc portion 141 to the center of the moving board 140, one end of the main lock arm 120, which is close to the auxiliary lock arm 410, will slightly move downward around the pivot in the middle of the main lock arm 120, so that the main lock arm 110 always hooks the auxiliary lock arm 420, and maintains the locking state, thereby improving the safety of the elevator.
First, the first stop assembly 300 is configured, the first stop assembly 300 includes a ratchet 310 fixedly connected to a fulcrum of the main lock arm 120, and a stop pawl 320 rotatably mounted on the base plate 500 and having a swinging fulcrum, one end of the stop pawl 320 is matched with the ratchet 310, a first tension spring 330 is disposed between the other end of the stop pawl 320 far from the ratchet 310 and the base plate 500, and the ratchet 310 is connected to the middle of the main lock arm 120 through a first connecting shaft. Ratchet 310 is fixedly connected to a fulcrum at the middle of main lock arm 120. The motion plate 140 rotates under the drive of the first driving component, the motion plate 140 pushes the motion rod 130 to ascend or descend, the main lock arm 120 swings around a fulcrum in the middle of the main lock arm 120 under the drive of the motion rod 130, the ratchet 310 also rotates along with the main lock arm 120, but one end of the stop pawl 320 is matched with the ratchet 310, a larger force needs to act on one end of the main lock arm 120, the ratchet 310 rotates, the stop limit function is achieved on the main lock arm 120, the locking stability of the main lock hook 110 and the auxiliary lock hook 410 is improved, and the whole structure is stable and reliable. The stopping pawl 320 is rotatably coupled to the bottom plate 500 through the first mounting post 321, and the tension spring has one end coupled to the first mounting post 321 and the other end coupled to the bottom plate 500 through the second mounting post 331.
Then, the second stopper assembly 200 is constructed, and the second stopper assembly 200 includes a first connecting rod 210 hinged to the middle of the moving rod 130, and a second connecting rod 220 having one end hinged to the first connecting rod 210 and the other end hinged to the bottom plate 500. The second stop component 200 is a link component, the moving plate 140 drives the moving rod 130 to move downwards, as shown in fig. 1, when the moving rod 130 contacts with the point a of the moving plate 140, the main lock arm 120 drives the main lock hook 110 to lock with the auxiliary lock hook 410, the first link 210 and the second link 220 form an approximate straight line, the moving rod 130 is stopped and limited, the locking stability of the main lock hook 110 and the auxiliary lock hook 410 is improved, and the whole structure is further stable and reliable. It should be noted that, referring to fig. 1, the moving plate 140 is provided with the first arc portion 141 and the second arc portion 142, and since the distance from the arc edge of the second arc portion 142 to the center of the moving plate 140 is slightly greater than the distance from the arc edge of the first arc portion 141 to the center of the moving plate 140, that is, the distance from the point B to the center of the moving plate 140 is slightly greater than the distance from the point a to the center of the moving plate 140, when the moving plate 140 moves from the point a to the point B, the first connecting rod 210 and the second connecting rod 220 form a straight line, so as to stop and limit the moving rod 130, but not interfere with the movement of the moving rod 130. When the car is in a non-unlocking area and trapped people use larger external force to pull the door, the moving plate 140 moves from the point A to the point B, one end of the main lock arm 120, which is close to the auxiliary lock arm 410, can slightly move downwards around a fulcrum in the middle of the main lock arm 120, so that the main lock arm 110 always hooks the auxiliary lock arm 420, the locking state is maintained, and the safety of the elevator is improved.
Finally, the auxiliary latch hook 410 is provided with an auxiliary latch hole 411 into which the main latch hook 110 is inserted, and the auxiliary latch hook 410 is rotatably connected with a stop block 430. The stopper 430 is connected to the sub-latch hook 410 through a pin 431, and a torsion spring 432 for restoring the stopper 430 is provided on the pin 431. The auxiliary lock hook 410 is provided with the auxiliary lock hole 411, so that the main lock hook 110 can conveniently penetrate through the auxiliary lock hole 411 and can be locked with the auxiliary lock hook 410, the auxiliary lock hook 410 is rotatably connected with the stop block 430, the stop block 430 can reset under the action of the torsion spring 432, the main lock hook 110 can be stopped, the locking performance of the main lock hook 110 and the auxiliary lock hook 410 is improved, at least one part of the stop block 430 is arc-shaped, the main lock hook 110 can conveniently deviate from the auxiliary lock hook 410, and interference is avoided.
A control method of elevator car door lock device comprises the following steps:
when the car is in an unlocking area and receives a door opening command, the first driving component drives the moving rod 130 to move upwards, and one end, close to the auxiliary locking arm 420, of the main locking arm 120 moves downwards around a fulcrum in the middle of the main locking arm 120, so that the main locking hook 110 is separated from the auxiliary locking hook 410, unlocking is achieved, and the car is normally opened;
When the car is in a non-unlocking area and receives a door closing command, the first driving component drives the moving rod 130 to move downwards, and one end of the main locking arm 120, which is close to the auxiliary locking arm 420, moves upwards around a fulcrum in the middle of the main locking arm 120, so that the main locking arm 110 hooks the auxiliary locking arm 420 to realize locking, and the car is normally closed;
When the car is in a non-unlocking area and the car is taken off, the first driving component drives the moving rod 130 to move downwards, one end of the main lock arm 120, which is close to the auxiliary lock arm 420, moves upwards around a fulcrum in the middle of the main lock arm 120, so that the main lock arm 110 hooks the auxiliary lock arm 420 to realize locking, the first stopping component 300 plays a role in stopping and limiting the main lock arm 120, and the second stopping component 200 plays a role in stopping and limiting the moving rod 130, so that the main lock arm 110 and the auxiliary lock arm 410 keep a locking state.
The above description may be implemented alone or in various combinations and these modifications are within the scope of the present invention.
It should be noted that, in the description of the present application, the terms "upper end," "lower end," and "bottom end" of the indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is conventionally put in use, merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An elevator car door lock device, characterized in that: the device comprises a bottom plate (500), a hanging plate (600), a main hook component (100) and a first stop component (300) which are arranged on the bottom plate (500), and a second stop component (200), and a secondary hook component (400) which is arranged on the hanging plate (600);
the main hook assembly (100) comprises a main hook (110), a main lock arm (120) rotationally connected with the bottom plate (500), a moving rod (130) hinged with the main lock arm (120), a moving plate (140) abutted with the end part of the moving rod (130), and a first driving assembly for driving the moving plate (140) to rotate, wherein a first arc-shaped part (141) and a second arc-shaped part (142) are arranged on the moving plate (140), and a fulcrum rotationally connected with the bottom plate (500) is arranged in the middle of the main lock arm (120);
the auxiliary hook component (400) comprises an auxiliary lock hook (410) which is mutually stopped with the main lock hook (110), and an auxiliary lock arm (420) fixedly connected with the hanging plate (600);
The first stop assembly (300) comprises a ratchet wheel (310) fixedly connected with a fulcrum of the main lock arm (120) and a stop pawl (320) rotatably installed on the bottom plate (500) and provided with a swinging fulcrum, one end of the stop pawl (320) is matched with the ratchet wheel (310), a first tension spring (330) is arranged between the other end of the stop pawl (320) far away from the ratchet wheel (310) and the bottom plate (500), and the ratchet wheel (310) is connected with the middle part of the main lock arm (120) through a first connecting shaft;
the second stop component (200) comprises a first connecting rod (210) hinged with the middle part of the moving rod (130), and a second connecting rod (220) with one end hinged with the first connecting rod (210) and the other end hinged with the bottom plate (500).
2. An elevator car door lock device as defined in claim 1, wherein: the auxiliary lock hook (410) is provided with an auxiliary lock hole (411) for the main lock hook (110) to be inserted into, and the auxiliary lock hook (410) is rotatably connected with a stop block (430).
3. An elevator car door lock device as defined in claim 2, wherein: the stop block (430) is connected with the auxiliary lock hook (410) through a pin shaft (431), and a torsion spring (432) for resetting the stop block (430) is arranged on the pin shaft (431).
4. An elevator car door lock device as defined in claim 3, wherein: at least a portion of the stop block (430) is arcuate.
5. An elevator car door lock device as defined in claim 1, wherein: the first driving assembly comprises a first gear (160) rotatably connected to the back surface of the bottom plate (500), a second gear (150) meshed with the first gear (160) for transmission, and a first motor (170) for driving the second gear (150) to rotate, wherein the first gear (160) is connected with the bottom plate (500) through a second connecting shaft.
6. An elevator car door lock device according to claim 5, wherein: a smooth layer is arranged at the edge of the motion plate (140).
7. The elevator car door lock device according to claim 6, wherein: the first motor (170) is electrically connected with the controller.
8. A control method of an elevator car door lock device according to any one of claims 1 to 7, characterized by:
When the car is in an unlocking area and receives a door opening instruction, the first driving component drives the moving rod (130) to move upwards, one end, close to the auxiliary locking arm (420), of the main locking arm (120) moves downwards around a fulcrum in the middle of the main locking arm (120), so that the main locking arm (110) is separated from the auxiliary locking arm (410) to unlock, and the car is normally opened;
When the car is in a non-unlocking area and receives a door closing instruction, the driving component I drives the motion rod (130) to move downwards, one end of the main lock arm (120) close to the auxiliary lock arm (420) moves upwards around a fulcrum in the middle of the main lock arm (120), so that the main lock arm (110) hooks the auxiliary lock arm (420) to realize locking, and the car is normally closed;
When the car is in a non-unlocking area and the door is pulled off, the first driving component drives the motion rod (130) to move downwards, one end of the main lock arm (120) close to the auxiliary lock arm (420) moves upwards around a fulcrum in the middle of the main lock arm (120), so that the main lock hook (110) hooks the auxiliary lock arm (420) to realize locking, the first stopping component (300) plays a stopping and limiting role on the main lock arm (120), and the second stopping component (200) plays a stopping and limiting role on the motion rod (130) to enable the main lock hook (110) and the auxiliary lock hook (410) to keep a locking state.
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| CN202210053743.XA CN114291707B (en) | 2022-01-18 | 2022-01-18 | Elevator car door lock device and control method thereof |
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| CN202210053743.XA CN114291707B (en) | 2022-01-18 | 2022-01-18 | Elevator car door lock device and control method thereof |
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| CN114291707B true CN114291707B (en) | 2024-06-25 |
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| JP3364351B2 (en) * | 1995-02-17 | 2003-01-08 | 三菱電機ビルテクノサービス株式会社 | Elevator car door pry open prevention device |
| JP2010208727A (en) * | 2009-03-09 | 2010-09-24 | Toshiba Elevator Co Ltd | Interlocking device for elevator landing door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724586A (en) * | 2013-12-19 | 2015-06-24 | 梁伟联 | Device and method for blocking human body when elevator landing door is not normally opened |
| CN205739984U (en) * | 2016-06-30 | 2016-11-30 | 上海贝思特门机有限公司 | A kind of elevator is anti-to be taken off gate and locks a door cutter |
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| Publication number | Publication date |
|---|---|
| CN114291707A (en) | 2022-04-08 |
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