CN110002326B - Car door locking device and elevator - Google Patents
Car door locking device and elevator Download PDFInfo
- Publication number
- CN110002326B CN110002326B CN201910127801.7A CN201910127801A CN110002326B CN 110002326 B CN110002326 B CN 110002326B CN 201910127801 A CN201910127801 A CN 201910127801A CN 110002326 B CN110002326 B CN 110002326B
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- door
- knife
- car door
- door lock
- car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention relates to a car door locking device and an elevator, wherein the car door locking device comprises: a car door lock; the door right knife is arranged on one side of the car door lock and can drive the car door lock to be opened; the synchronous transmission device is in driving fit with the door right knife; and the brake is arranged on one side of the car door lock and can lock the synchronous transmission device in a power-off state. Therefore, even if the car door is impacted by external force, the synchronous transmission device cannot move due to the limiting action of the brake, and further cannot drive the door right knife to move towards the car door lock, so that the car door lock always maintains a locked state when not being collided by the door right knife, and cannot be opened accidentally. Therefore, the emergency stop accident of the elevator can be avoided to the maximum extent, the comfort and the safety of passengers taking the elevator are ensured, and the hidden danger of personal and property loss is eliminated.
Description
Technical Field
The invention relates to the technical field of elevator car door locks, in particular to a car door locking device and an elevator.
Background
According to the relevant regulations of GB7588.1, when the distance between the hoistway wall and the car is greater than 0.15m, a car door lock needs to be configured, and if the distance between the hoistway wall and the car is less than 0.15m, a door opening limiting device also needs to be configured, namely, a mechanical lock hook for limiting the opening of the door needs to be configured on the car side under any condition, so as to ensure the safe and reliable operation of the elevator.
Sedan-chair door lock is mostly door sword integral type structure in the existing market, realizes opening the operation through contacting between door sword and the sedan-chair door lock gyro wheel promptly. The traditional car door lock has the following defects: when the elevator operation in-process, when the sedan-chair door received external force striking, the door link plate can be transmitted to the energy that the door plant vibrations produced, and then transmits on the wobbling door cutter arbor to arouse the slight shake of door cutter arbor. The door cutter bar shakes and can bump sedan-chair lock gyro wheel and remove, and sedan-chair lock gyro wheel just can bump the latch hook and jump, when jumping the take the altitude, the lock switch will break off. At the moment, the control cabinet detects that the door control loop is disconnected, and immediately sends an instruction for enabling the contracting brake to act, the elevator safety loop is disconnected instantaneously, and the elevator is stopped suddenly, so that the comfort and the safety of passengers taking the elevator are affected.
Disclosure of Invention
Therefore, the car door locking device is needed to be provided, so that the elevator can be prevented from being suddenly stopped due to the fact that the car door lock is accidentally opened when the car door is impacted by external force, and the comfort and safety of passengers taking the elevator are ensured; in addition, still provide an elevator, can avoid appearing unexpected scram accident after through assembling this sedan-chair door locking device, guarantee that the passenger takes safe and reliable, improve and take experience and feel.
The technical scheme is as follows:
in one aspect, the present application provides a car door locking device comprising:
a car door lock;
the door right knife is arranged on one side of the car door lock and can drive the car door lock to be opened;
the synchronous transmission device is in driving fit with the door right knife; and
the brake is arranged on one side of the synchronous transmission device and can lock the synchronous transmission device in a power-off state.
The car door locking device is applied to the car door of the elevator and plays a role in limiting the opening of the door. Specifically, each part of the car door lock is arranged on the left door hanging plate and the right door hanging plate, the right door knife is arranged on one side of the car door lock, and the car door lock can be unlocked through collision (namely, when the right door knife does not collide with the car door lock, the car door lock cannot be unlocked). When the elevator normally runs and the control cabinet does not electrify the brake, the brake is in a power-off state and can lock the synchronous transmission device, and at the moment, the synchronous transmission device cannot move. Therefore, even if the car door is impacted by external force, the synchronous transmission device cannot move due to the limiting action of the brake, and further cannot drive the door right knife to move towards the car door lock, so that the car door lock always maintains a locked state when not being collided by the door right knife, and cannot be opened accidentally. Therefore, the emergency stop accident of the elevator can be avoided to the maximum extent, the comfort and the safety of passengers taking the elevator are ensured, and the hidden danger of personal and property loss is eliminated.
The technical solution of the present application is further described below:
in one embodiment, the synchronous transmission device comprises a first rope wheel and a second rope wheel which are arranged on the door lock base at intervals, and a transmission rope wound on the first rope wheel and the second rope wheel, and the brake can clamp or release the transmission rope.
In one embodiment, the car door locking device further comprises a first fixing clamp, a second fixing clamp and a left door knife, wherein the right door knife is connected with the transmission rope through the first fixing clamp, and the left door knife is connected with the transmission rope through the second fixing clamp, so that the left door knife and the right door knife can synchronously move in the same direction.
In one embodiment, the car door locking device further comprises a magnetic bar, a first electromagnetic coil connected with the magnetic bar, a first elastic telescopic device and a second elastic telescopic device arranged on the door lock base, wherein the right door knife is connected with the magnetic bar through the first elastic telescopic device, and the left door knife is connected with the second elastic telescopic device.
In one embodiment, the car door locking device further comprises a door middle knife and a third elastic expansion device, wherein the door middle knife is arranged between the door left knife and the door right knife and is connected with the magnetic bar through the third elastic expansion device.
In one embodiment, the car door locking device further comprises a second electromagnetic coil and a fourth elastic telescopic device, and the second electromagnetic coil is connected with the magnetic bar through the fourth elastic telescopic device.
In one embodiment, the car door locking device further comprises an upper guide rail and a lower guide rail which are arranged at intervals in the longitudinal direction, and the left door knife, the middle door knife and the right door knife are movably arranged on the upper guide rail and the lower guide rail.
In one embodiment, the car door locking device further comprises a driving arm, wherein the driving arm is arranged on the door middle knife and can drive the brake to move.
In one embodiment, the car door lock further comprises a first roller pair, a second roller pair and a third roller pair, the right door knife is translationally disposed on the upper rail and the lower rail through the first roller pair, the middle door knife is translationally disposed on the upper rail and the lower rail through the second roller pair, and the left door knife is translationally disposed on the upper rail and the lower rail through the third roller pair.
In another aspect, the present application also provides an elevator comprising a door lock as described above. The car door locking device can avoid accidental emergency stop accidents after being assembled, so that the passenger can be safely and reliably taken, and the riding experience is improved.
Drawings
Fig. 1 is a schematic structural view of a car door locking device according to an embodiment of the present invention;
fig. 2 is a structural diagram illustrating a state of the door locking device when the car is in a flat-bed closed state according to an embodiment of the invention;
fig. 3 is a structural diagram illustrating a state of the door locking device when the car is in an electric door opening state at the time of leveling according to an embodiment of the invention;
fig. 4 is a structural diagram illustrating a state of the car door locking device at the initial stage of manual door opening of the car in the flat bed according to an embodiment of the invention;
fig. 5 is a structural diagram illustrating a state of the door locking device in the manual door opening process of the elevator car in the flat floor according to an embodiment of the invention;
fig. 6 is a structural diagram of a state of the car door locking device after the car is opened manually when the car is on a flat floor according to an embodiment of the invention;
fig. 7 is a structural diagram illustrating a state of the car door locking device when the car is opened manually outside the hall on a flat floor according to an embodiment of the invention;
fig. 8 is a structural diagram illustrating a state of the door locking device in the manual door opening process outside the hall when the car is on the flat floor according to an embodiment of the invention;
fig. 9 is a structural diagram of a state of the car door locking device after the car is opened manually outside the hall when the car is on the flat floor according to an embodiment of the invention.
Description of reference numerals:
10. the car door lock comprises a car door lock body 11, a car door lock hook 111, a first arm, 112, a second arm, 113, a third arm, 12, a car door lock seat 20, a door right knife 30, a synchronous transmission device 31, a first rope wheel 32, a second rope wheel 33, a transmission rope 40, a brake 50, a first fixing clamp 60, a second fixing clamp 70, a door left knife 80, a magnetic rod 90, a first electromagnetic coil 100, a first elastic expansion device 110, a second elastic expansion device 120, a door middle knife 130, a third elastic expansion device 140, a second electromagnetic coil 150, a fourth elastic expansion device 160, an upper guide rail 170, a lower guide rail 180, a driving arm 190, a first roller pair 200, a second roller pair 210, a third roller pair 220, a roller I, 230, a roller II, 240, a door lock base 250, a landing door lock moving roller 260 and a landing door lock static roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner of fixedly connecting one element to another element can be implemented by the prior art, and will not be described herein, and preferably, a screw-threaded connection is used.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1, a car door locking device shown for an embodiment of the present application includes: the car door lock comprises a door lock base 240, a left door hanging plate, a right door hanging plate, a car door lock 10, a door right knife 20, a synchronous transmission device 30 and a brake 40. The car door lock 10 comprises a car door lock hook 11 and a car door lock seat 12, and the car door lock 10 is locked by the car door lock hook 11 and the car door lock seat 12 in an engaged manner (when the car door lock hook 11 is separated from the car door lock seat 12, the car door can be smoothly opened). The car door lock hook 11, the right door knife 20, the synchronous transmission device 30 and the brake 40 are installed on the door lock base 240 together, and the door lock base 240 is installed on the left door hanging plate; and the car door lock seat 12 is installed on the right door scraper through the lock seat connecting plate.
In one embodiment, the door right knife 20 is disposed at one side of the car door lock 10, specifically, at the left side of the car door lock 10, and the door right knife 20 can drive the car door lock 10 to open in a collision manner; the synchronous transmission device 30 is in driving fit with the right door blade 20; a brake 40 is provided at one side of the synchronous drive device 30, and the brake 40 can lock the synchronous drive device 30 in a power-off state.
Referring to fig. 1, in the present embodiment, the car door latch hook 11 has a three-forked structure, and one side thereof is a locking side, i.e., a first arm 111; the other two side end portions are arranged between the working surface flanges of the door right blade 20, i.e., the second arm 112 and the third arm 113. The end part of the second arm 112 is provided with a roller I220, and the roller I220 is arranged on the left side of the door right knife 20 and can be matched with the door right knife 20 in a collision way; the end of the third arm 113 is provided with a roller II230, the roller II230 is arranged on the right side of the door right knife 20 and can be matched with the door right knife 20 in a collision manner, the second arm 112 and the third arm 113 are arranged in an acute angle manner, and the first arm 111 and the second arm 112, and the first arm 111 and the third arm 113 are respectively arranged in an obtuse angle manner. When the door right knife 20 moves left, the roller I220 can be collided to further enable the car door lock hook 11 to rotate and lift, and the car door lock 10 is opened; when the right door blade 20 moves to the right, the collidable roller II230 can also make the car door lock hook 11 rotate and lift up, and the car door lock 10 is opened.
It should be noted that, when the elevator is not in the open state, the roller I220 and the roller II230 are in clearance fit with the door right blade 20, and the formed safety space can prevent the occurrence of false touch.
In addition, the end of the first arm 111 is further connected with a switch beating plate connecting plate and a switch beating plate, the cam door lock switch can be opened and closed through rotation and horizontal movement of the switch beating plate, and the cam door lock switch is fixed in the upper sill of the car door. It can form double locking effect with sedan-chair door lock 10, further promotes elevator security performance.
The car door locking device is applied to the car door of the elevator and plays a role in limiting the opening of the door. Specifically, the components of the car door lock 10 are partially mounted on the left and right door hanging plates, and the right door blade 20 is mounted on one side of the car door lock 10 and enables the car door lock 10 to be unlocked by collision (i.e., the car door lock 10 is not unlocked when the right door blade 20 does not collide with the car door lock 10). When the elevator runs normally and the control cabinet does not supply power to the brake 40, the brake 40 is in a power-off state at the moment and can lock the synchronous transmission device 30, and the synchronous transmission device 30 cannot move at the moment. Therefore, even if the car door is impacted by external force, the synchronous transmission device 30 can not move due to the limiting action of the brake 40, and further the door right blade 20 can not be driven to move towards the car door lock 10, so that the car door lock 10 can always maintain a locked state when the car door is not impacted by the door right blade 20, and the car door can not be opened accidentally. Therefore, the emergency stop accident of the elevator can be avoided to the maximum extent, the comfort and the safety of passengers taking the elevator are ensured, and the hidden danger of personal and property loss is eliminated.
With reference to fig. 1, based on the above embodiment, the synchronous transmission device 30 includes a first rope pulley 31 and a second rope pulley 32 spaced apart from each other on a door lock base 240, and a transmission rope 33 wound around the first rope pulley 31 and the second rope pulley 32, and the brake 40 can clamp or release the transmission rope 33. The car door locking device further comprises a first fixing clamp 50, a second fixing clamp 60 and a door left knife 70, wherein the door right knife 20 is connected with the transmission rope 33 through the first fixing clamp 50, and the door left knife 70 is connected with the transmission rope 33 through the second fixing clamp, so that the door left knife 70 and the door right knife 20 can synchronously move in the same direction. Due to the connecting and fixing effects of the first fixing clamp 50 and the second fixing clamp 60, the left door knife 70 and the right door knife 20 can synchronously move horizontally along with the transmission rope 33 in the same direction, so that when the right door knife 20 moves rightwards and collides with the car door lock hook 11 to lift up to open the car door lock 10, the left door knife 70 can synchronously move rightwards to clamp a layer door lock roller, the car door lock 10 and the layer door lock can be opened simultaneously, and the probability that the lock hook is clamped in the door opening process is reduced.
With reference to fig. 1, the car door locking device further includes a magnetic bar 80, a first electromagnetic coil 90 connected to the magnetic bar 80, a first elastic expansion device 100, and a second elastic expansion device 110 disposed on the door lock base 240, wherein the door right blade 20 is connected to the magnetic bar 80 through the first elastic expansion device, and the door left blade 70 is connected to the second elastic expansion device 110. The car door locking device further comprises a door middle knife 120 and a third elastic expansion device 130, wherein the door middle knife 120 is arranged between the door left knife 70 and the door right knife 20 and is connected with the magnetic bar 80 through the third elastic expansion device 130. The car door locking device further comprises a second electromagnetic coil 140 and a fourth elastic telescopic device 150, wherein the second electromagnetic coil 140 is connected with the magnetic bar 80 through the fourth elastic telescopic device.
Wherein the first and second electromagnetic coils 90, 140 are both electrically connected to a control cabinet of the elevator system. When the first electromagnetic coil 90 is powered on, the magnetic rod 80 can be enabled to generate suction force on the door middle knife 120 and the door right knife 20, the first elastic telescopic device 100 and the third elastic telescopic device 130 can be contracted, and when the first electromagnetic coil 90 is powered off, the door middle knife 120 and the door right knife 20 are released. When the second electromagnetic coil 140 is electrified, the reverse thrust to the magnetic bar 80 is generated, so that the position of the magnetic bar 80 is kept; when the second electromagnetic coil 140 is de-energized, the reverse thrust to the magnetic rod 80 disappears, and the position of the magnetic rod 80 is maintained by the fourth elastic force telescopic device 150.
The working principle of the door lock is explained below using different operating states of the elevator as an example: 1) when the elevator reaches the leveling zone, the car door is electrically opened: when the cage reaches the leveling zone, the roller of the landing door lock enters the door knife zone (as shown in fig. 2), the leveling signal is fed back to the control cabinet, the brake of the main machine acts, the first electromagnetic coil 90 is powered off and the second electromagnetic coil 140 is powered on (namely, the two coils realize interlocking) before the door motor receives the door opening signal, so that the position of the magnetic rod 80 is kept still. At this time, the door middle blade 120 and the door right blade 20 are opened by the restoring forces F1 and F3 of the third elastic expansion device 130 and the first elastic expansion device 100, respectively, and at this time, the door right blade 20 presses the roller II230 to open the car door lock 10 (as shown in fig. 3). At this time, F1> landing door unlocking force, F1> car door unlocking force, F2> landing door resistance. Meanwhile, the synchronous transmission device 30 enables the door right knife 20 to drive the door left knife 70 to move in the same direction, so that the door left knife 70 and the door middle knife 120 move in the opposite direction to clamp the layer door lock roller, and the car door lock 10 and the layer door lock are opened simultaneously. When the door motor starts, the car door and the landing door are opened synchronously.
2) When the elevator reaches the leveling zone, the car door is opened in a manual mode in the car: when the elevator car suddenly stops in a flat zone, the door system is in a power-ON state, the magnetic bar 80 is kept powered ON, the first electromagnetic coil 90 is powered ON, the second electromagnetic coil 140 is powered OFF, and passengers want to pull the elevator car door in the elevator car for self-rescue, the layer door locking roller 250 presses the door middle knife 120 (shown in figure 4), the layer door load generates the pressing force of the layer door locking roller 250 ON the door middle knife 120, the door middle knife 120 is compressed to move rightwards, and the distance between the door right knife 20 and the roller II230 is 0 (shown in figure 5). At this time, F3> car door unlocking force, landing door resistance > F2, and the spring force F3 of the door right blade 20 is greater than the resistance of the roller II230, so that the car door lock hook 11 can be lifted, and the car door lock 10 is opened. Under the action of the synchronous transmission device 30, the left door blade 70 moves along with the right door blade 20 in the same direction to clamp the layer door lock movable roller 250 and the layer door lock static roller 260 (as shown in fig. 6). When the car door is continuously and manually pulled open, the landing door lock is opened, the car door drives the landing door to move, and the car door is opened before the landing door.
Further, the door locking device further includes a driving arm 180, wherein the driving arm 180 is disposed on the door center knife 120 and can drive the brake 40 to move.
In a normal state, the driving arm 180 is in tangential contact with the outer wall surface of the stopper 40. And is separated from the brake 40 when the elevator is normally electrically opened. When the door system is in a power-off state, if the door is opened manually in the platform region car, and the door center knife 120 is pressed by the door locking roller 250, the brake 40 can be driven to move rightwards, so that the door left knife 70 and the door right knife 20 synchronously move rightwards under the driving of the driving rope 33. If the car door is opened outside the flat hall, the brake 40 can push the driving arm 180 through the pulling force of the driving rope 33 when the static roller 260 of the landing door lock presses the left door knife 70, so as to drive the middle door knife 120 to move leftwards.
When the elevator car suddenly stops in a flat zone, the door system is in a power-off state, and the brake 40 is in the power-off state, the layer door lock driving roller 250 presses the door middle knife 120 to move rightwards, and the driving arm 180 pulls the brake 40 to move rightwards. Thereby drive door right sword 20 and extrude sedan-chair lock 10 gyro wheel II230, make sedan-chair door latch hook 11 opened, the sedan-chair door is opened in advance to the layer door.
3) When the elevator reaches the leveling zone, the car door is opened manually from the outside of the hall: when the car is on a flat floor and an operator wants to open the car door from outside the hall, the elevator door lock is firstly opened by using a triangular key (as shown in fig. 7), when the hall door is opened for a certain distance, the elevator door lock static roller 260 is tangent to the left door knife 70, when the hall door is further opened, the elevator door lock static roller 260 presses the left door knife 70 to translate (as shown in fig. 8), the second elastic telescopic device 110 contracts, meanwhile, the left door knife 70 drives the right door knife 20 to move leftwards through the synchronous transmission device 30, so that the left door knife 70 presses the roller I220, the elevator door lock 10 is opened (as shown in fig. 9), and then the car door starts to be opened. Under the working condition, the hall door is opened before the car door.
In addition, in order to ensure that the left door knife 70, the middle door knife 120 and the right door knife 20 move horizontally more stably and reliably and avoid the problem of skew and locking, the car door locking device further comprises an upper guide rail 160 and a lower guide rail 170 which are longitudinally arranged at intervals, and the left door knife 70, the middle door knife 120 and the right door knife 20 can be movably arranged on the upper guide rail 160 and the lower guide rail 170. Thereby guiding the door left blade 70, the door middle blade 120 and the door right blade 20 to stably move along a predetermined path.
With continued reference to fig. 1, in one embodiment, the car door lock further includes a first roller pair 190, a second roller pair 200, and a third roller pair 210, the door right knife 20 is translationally disposed on the upper rail 160 and the lower rail 170 via the first roller pair 190, the door middle knife 120 is translationally disposed on the upper rail 160 and the lower rail 170 via the second roller pair 200, and the door left knife 70 is translationally disposed on the upper rail 160 and the lower rail 170 via the third roller pair 210. Specifically, the first roller pair 190, the second roller pair 200, and the third roller pair 210 may be comprised of two rollers having the same structural dimensions. The two rollers are respectively installed through the rotating shaft so as to ensure good rotating capacity. Specifically, one of the rollers rolls and is arranged on the upper edge of the upper guide rail 160, and the other roller rolls and is arranged on the lower edge of the lower guide rail 170, so that the two rollers form a clamping effect, smooth movement is guaranteed, loosening of each door vane can be avoided, and the improvement of the operation reliability is facilitated.
In some emergency situations, when the elevator is required to be manually opened outside a hall in a non-flat layer, when the elevator car is in a position of passing a flat layer, personnel outside the hall can open the landing door by using a triangular key firstly, and then pull a pull rope pre-arranged on a door plate to lift the car door lock hook 11, so that the car door can be directly opened.
When the elevator is in a non-flat zone and people in the elevator car want to illegally open the elevator door, the movable roller and the static roller of the elevator door lock are not in the area between the left door knife 70 and the middle door knife 120 at the moment, and the middle door knife 120 is not collided and extruded, so that the passengers can pull the door instantly, and the elevator door lock 10 can not be opened only because of the interference of the elevator door lock hook 11 and the elevator door lock seat 12, and the safety of the people in the elevator car can be protected.
When the elevator suddenly stops in a non-flat zone, if the power supply of the door system is also simultaneously disconnected, the first electromagnetic coil 90 is powered off, the door right blade 20 with the force of F3 and the direction towards the right is released, but the brake 40 is powered off and closed at the same time, and the force of F3 is not enough to overcome the frictional resistance of the brake 40 and the door lock base 240, so that the door right blade 20 and the door left blade 70 cannot move due to the braking of the driving rope 33, and the car door lock 10 cannot be opened.
In another aspect, the present application also provides an elevator comprising a door lock as described above. The car door locking device can avoid accidental emergency stop accidents after being assembled, so that the passenger can be safely and reliably taken, and the riding experience is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A car door latch, comprising:
a car door lock;
the door right knife is arranged on one side of the car door lock and can drive the car door lock to be opened;
the synchronous transmission device is in driving fit with the door right knife; and
the brake is arranged on one side of the synchronous transmission device and can lock the synchronous transmission device in a power-off state; the car door locking device further comprises a left door knife, a first elastic telescopic device, a magnetic rod, a first electromagnetic coil connected with the magnetic rod and a second elastic telescopic device arranged on a door lock base, wherein the right door knife is connected with the magnetic rod through the first elastic telescopic device, and the left door knife is connected with the second elastic telescopic device.
2. The car door lock according to claim 1, wherein the synchronous drive means comprises a first sheave and a second sheave spaced apart from each other on a base of the door lock, and a drive rope wound around the first sheave and the second sheave, and the brake is capable of clamping or releasing the drive rope.
3. The door lock of claim 2, further comprising a first retaining clip and a second retaining clip, wherein the right door blade is connected to the drive cord via the first retaining clip and the left door blade is connected to the drive cord via the second retaining clip, such that the left door blade and the right door blade can move in the same direction and in the same direction.
4. The door latch according to claim 1, wherein the door latch hook is a three-prong structure having a locking side, i.e., a first arm; the end parts of the other two sides are distributed between the flanges of the working surface of the right door knife, namely a second arm and a third arm; the end part of the second arm is provided with a roller I which is arranged on the left side of the door right knife and can be matched with the door right knife in a collision way; the gyro wheel II is installed to the tip of third arm, and this gyro wheel II lays in the right side of door right sword to can with door right sword collision cooperation, the second arm with the third arm is the acute angle and arranges, first arm with the second arm and first arm with the third arm is the obtuse angle respectively and arranges.
5. The car door lock according to claim 1, further comprising a door center blade and a third elastic extension device, wherein the door center blade is disposed between the door left blade and the door right blade and connected to the magnetic bar through the third elastic extension device.
6. The door latch of claim 1, further comprising a second solenoid and a fourth spring motor, wherein the second solenoid is coupled to the magnetic bar through the fourth spring motor.
7. The door lock of claim 5, further comprising upper and lower longitudinally spaced rails, wherein the left door blade, the middle door blade, and the right door blade are movably disposed on the upper and lower rails.
8. The door lock of claim 5, further comprising an actuating arm disposed on the door center knife and capable of actuating the brake.
9. The door lock of claim 7, further comprising a first roller pair by which the right door blade is translationally disposed on the upper and lower tracks, a second roller pair by which the middle door blade is translationally disposed on the upper and lower tracks, and a third roller pair by which the left door blade is translationally disposed on the upper and lower tracks.
10. An elevator characterized by comprising the door lock as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127801.7A CN110002326B (en) | 2019-02-20 | 2019-02-20 | Car door locking device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127801.7A CN110002326B (en) | 2019-02-20 | 2019-02-20 | Car door locking device and elevator |
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| CN110002326A CN110002326A (en) | 2019-07-12 |
| CN110002326B true CN110002326B (en) | 2021-04-02 |
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| CN201910127801.7A Active CN110002326B (en) | 2019-02-20 | 2019-02-20 | Car door locking device and elevator |
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| CN114715759A (en) * | 2022-04-15 | 2022-07-08 | 日立电梯（中国）有限公司 | Asynchronous door knife integrated car door lock and elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037489A (en) * | 1988-03-18 | 1989-11-29 | 英万蒂奥股份公司 | The elevator door driving device that has locking mechanism |
| JP2008213951A (en) * | 2007-02-28 | 2008-09-18 | Mitsubishi Electric Corp | Elevator device |
| CN102070065A (en) * | 2011-01-29 | 2011-05-25 | 日立电梯（中国）有限公司 | Door lock mechanism for elevator car |
| CN204211321U (en) * | 2014-04-16 | 2015-03-18 | 永大电梯设备（中国）有限公司 | Car door lock door lock device |
| CN205932871U (en) * | 2016-08-09 | 2017-02-08 | 日立电梯（中国）有限公司 | Elevator sedan -chair locks and elevator |
-
2019
- 2019-02-20 CN CN201910127801.7A patent/CN110002326B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037489A (en) * | 1988-03-18 | 1989-11-29 | 英万蒂奥股份公司 | The elevator door driving device that has locking mechanism |
| JP2008213951A (en) * | 2007-02-28 | 2008-09-18 | Mitsubishi Electric Corp | Elevator device |
| CN102070065A (en) * | 2011-01-29 | 2011-05-25 | 日立电梯（中国）有限公司 | Door lock mechanism for elevator car |
| CN204211321U (en) * | 2014-04-16 | 2015-03-18 | 永大电梯设备（中国）有限公司 | Car door lock door lock device |
| CN205932871U (en) * | 2016-08-09 | 2017-02-08 | 日立电梯（中国）有限公司 | Elevator sedan -chair locks and elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110002326A (en) | 2019-07-12 |
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