CN109969900B - Unexpected protection device that removes of elevator car - Google Patents
Unexpected protection device that removes of elevator car Download PDFInfo
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- CN109969900B CN109969900B CN201910346092.1A CN201910346092A CN109969900B CN 109969900 B CN109969900 B CN 109969900B CN 201910346092 A CN201910346092 A CN 201910346092A CN 109969900 B CN109969900 B CN 109969900B
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- elevator
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- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 description 10
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an unexpected movement protection device for an elevator car, which is characterized in that: the device comprises a lift car, a driving motor, a transmission mechanism, a linkage mechanism, a trigger pull wire, a stop trigger plate and a bidirectional clamp; the driving motor is arranged on the car; the transmission mechanism and the linkage mechanism are both connected with the output end of the driving motor; the linkage mechanism is connected with two car doors of the car; the trigger mechanism comprises a connecting rod assembly, an elastic trigger assembly and a guide seat; the elastic triggering component is arranged on the car; the connecting rod assembly is arranged on the guide seat and the elastic triggering assembly in a penetrating way and is connected with the transmission mechanism; the connecting rod assembly axially moves under the pushing of the transmission mechanism to be matched with a stop trigger plate arranged on an elevator guide rail or a hoistway wall; the stop trigger plate is arranged at each level position of the elevator; and two ends of the trigger stay wire are respectively connected with the elastic trigger assembly and the bidirectional clamp. The invention realizes quick response and effectively stops the car and effectively avoids the occurrence of car shearing accidents.
Description
Technical Field
The invention relates to the field of elevator equipment, in particular to an unexpected movement protection device for an elevator car.
Background
With the rapid development of Chinese economy, the living standard of people is increasingly improved, and the elevator is closely related to the work and the living of people. According to the notification of the national market supervision and management bureau, the total quantity of the elevators in China reaches 562.7 ten thousand by 2017, and the total quantity of the elevators accounts for 43.4% of the total quantity of special equipment, and the number of the elevator accidents 56 accounts for 23.53% of the number of the special equipment accidents. In recent years, since elevator accidents frequently happen, except for part of artificial accidents, most of the accidents are caused by the failure of an elevator brake and the unexpected movement of a car, especially the extrusion and shearing injuries caused by the unexpected movement of the car are more striking and surprise, and the public is greatly panicked.
When the elevator car door is in an open state, the car accidentally moves due to the reasons of brake failure, insufficient traction force or disappearance, too small balance coefficient and the like, so that various extrusion and shearing are caused, and finally, personal and property accidents are caused. The prior solution to the situation mainly adopts a brake to stop a traction main machine or adopts a speed limiter to trigger a rope clamping device to indirectly stop the car. However, there is a risk that the brake failure itself is one of the main causes of unexpected movement of the car, and that the brake is used as a stopping member of the unexpected movement protection device of the car; the rope clamping device is triggered by the speed limiter, and the speed limiter is triggered to have the danger of time delay operation.
Currently, the published literature for preventing unexpected movement of a car, for example, patent publication No. CN102372206a, has the following drawbacks:
1. when the extending mechanism is clamped in the locking hole, due to normal change of the carrying capacity in the car, vertical force exists between the extending mechanism and the locking hole, so that the extending mechanism is difficult to retract or even cannot retract, and the elevator cannot realize leveling and re-leveling functions.
2. The extending mechanism extends into the locking hole to prevent the car from moving accidentally, and when the car moves accidentally, the force in the vertical direction between the extending mechanism and the locking baffle is very large, so the method is only suitable for elevators with smaller carrying capacity and has certain limitation.
3. In the elevator power failure state, the motor cannot act, so that the protection device fails.
Disclosure of Invention
The invention aims to provide the elevator car accidental movement protection device which is applicable to the permanent magnet synchronous traction host machine and the worm gear traction host machine, is applicable to any load specification elevator, does not affect the functions of leveling and re-leveling of the elevator, and can realize quick response and effectively stop the elevator car.
The technical scheme for realizing the aim of the invention is as follows: an unexpected protection device that removes of elevator car, its characterized in that: the device comprises a lift car, a driving motor, a transmission mechanism, a linkage mechanism, a trigger pull wire, a stop trigger plate and a bidirectional clamp; the driving motor is arranged on the car; the transmission mechanism and the linkage mechanism are both connected with the output end of the driving motor; the linkage mechanism is connected with two car doors of the car; the trigger mechanism comprises a connecting rod assembly, an elastic trigger assembly and a guide seat; the elastic triggering component is arranged on the car; the connecting rod assembly is arranged on the guide seat and the elastic triggering assembly in a penetrating way and is connected with the transmission mechanism; the connecting rod assembly axially moves under the pushing of the transmission mechanism to be matched with a stop trigger plate arranged on an elevator guide rail or a hoistway wall; the stop trigger plate is arranged at each level position of the elevator; and two ends of the trigger stay wire are respectively connected with the elastic trigger assembly and the bidirectional clamp.
A motor output wheel is fixed on the output shaft of the driving motor; the transmission mechanism comprises a transmission belt, a shaft seat, a gear shaft, a rack and a deflector rod; the shaft seat is arranged on the car; the gear shaft is rotationally connected to the shaft seat, and a belt pulley is arranged on the gear shaft; the transmission belt surrounds the motor output wheel and the belt pulley; the rack is arranged at the rear end of the shaft seat in a sliding manner and meshed with the gear shaft; the deflector rod is fixed on the rack and is connected with a connecting rod assembly of the trigger mechanism.
A motor output wheel is fixed on the output shaft of the driving motor; the linkage mechanism comprises a first synchronous wheel, a second synchronous wheel, a door lock steel wire rope and a synchronous belt; the first synchronous wheel and the second synchronous wheel are arranged on the car; the door lock steel wire rope is wound around the first synchronous wheel and the second synchronous wheel; the two sedan doors are respectively connected with a high-position section and a bottom-position section of a door lock steel wire rope between the first synchronous wheel and the second synchronous wheel; the synchronous belt is wound on the motor output wheel and the first synchronous wheel or wound on the motor output wheel and the second synchronous wheel.
The elastic triggering component of the triggering mechanism comprises a spring fixing seat, an extension spring and a guide sleeve; the guide sleeve is sleeved on the connecting rod assembly; the spring fixing seat and the extension spring are respectively arranged on two sides of the guide sleeve; the two spring fixing seats are fixed with the lift car, and two ends of each extension spring are respectively connected with one spring fixing seat and one guide sleeve; and two ends of the trigger stay wire are respectively connected with the guide sleeve and the two-way clamp.
The connecting rod assembly of the triggering mechanism comprises a first connecting rod and a second connecting rod; the first connecting rod is connected with the transmission mechanism; the second connecting rod is hinged with the first connecting rod and can be turned up and down; the guide sleeve of the elastic triggering component is sleeved on the second connecting rod; the guide seat is fixed on the car and sleeved on the first connecting rod.
The stop trigger plate is provided with a waist-shaped through hole matched with a second connecting rod of the connecting rod assembly of the trigger mechanism.
The triggering mechanism further comprises a micro switch; a guide sleeve of the elastic triggering assembly is provided with a switch fork matched with the micro switch; the micro switch is connected in series in the elevator safety loop.
The car is provided with a stiffening beam; the two-way clamp is fixed on the reinforcing beam.
The top and the bottom of the front end of the lift car are respectively provided with a guide rail and a sill; the top of the car door is provided with a connecting sheet; the connecting piece is rotationally connected with a roller which is arranged on the guide rail; the top of the connecting sheet extends upwards to be connected with the linkage mechanism; the bottom of the car door is provided with a car door sliding block which is in sliding connection with the sill.
By adopting the technical scheme, the invention has the following beneficial effects: (1) According to the elevator car, the trigger mechanism and the car door work simultaneously through the transmission mechanism, the connecting rod assembly stretches out synchronously to be matched with the stop trigger plate when the car door is opened, and when the car accidentally moves, the elastic trigger assembly is driven by the connecting rod assembly to trigger the bidirectional clamp to clamp the guide rail, so that the car can be quickly responded and effectively stopped, the car shearing accident can be effectively avoided, the functions of leveling and re-leveling of the car are not affected, the application range is wide, and the elevator car is suitable for elevators with various load specifications.
(2) The stop trigger plate is provided with the waist-shaped through hole matched with the second connecting rod of the connecting rod assembly of the trigger mechanism, the size of the waist-shaped through hole can be designed according to actual conditions, the requirement of stopping distance is met, the structure is ingenious, and the reliability is high.
(3) The trigger mechanism of the invention also comprises a micro switch, the guide sleeve of the elastic trigger component is provided with a switch fork matched with the micro switch, the micro switch is connected in series in the elevator safety loop, and the elevator safety loop can be disconnected simultaneously when the trigger is stopped, thereby greatly improving the safety and reliability.
(4) Under the condition that the car door is opened, even if the elevator is in a power-off state, the mechanical triggering device can still drive the bidirectional clamp to act, and the car is stopped, so that a protection effect is achieved.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is an enlarged view of area a of fig. 1.
Fig. 3 is a schematic structural view of embodiment 2 of the present invention.
The reference numerals in the drawings are:
the elevator car comprises an elevator car 1, an elevator car door 1-1, connecting pieces 1-1-1, rollers 1-1-2, elevator car door sliding blocks 1-1-3, a reinforcing beam 1-2, elevator car door guide rails 1-3 and a sill 1-4;
a driving motor 2 and a motor output wheel 2-1;
the transmission mechanism 3, a transmission belt 3-1, a shaft seat 3-2, a gear shaft 3-3, a belt pulley 3-3-1, a rack 3-4 and a deflector rod 3-5;
the device comprises a linkage mechanism 4, a first synchronizing wheel 4-1, a second synchronizing wheel 4-2, a door lock steel wire rope 4-3, a high-level section 4-3-1, a low-level section 4-3-2 and a synchronous belt 4-4;
the device comprises a trigger mechanism 5, a connecting rod assembly 5-1, a first connecting rod 5-1-1, a second connecting rod 5-1-2, an elastic trigger assembly 5-2, a spring fixing seat 5-2-1, an extension spring 5-2-2, a guide sleeve 5-2-3, a switch fork 5-2-4, a guide seat 5-3 and a micro switch 5-4;
the trigger pull wire 6, the stop trigger plate 7, the kidney-shaped through hole 7-1 and the bidirectional clamp 8;
the guide rod mechanism 9, the positioning seat 9-1, the guide rod 9-2, the guide rod motor 9-3 and the threaded sleeve 9-4;
shock absorber 10, base 10-1, shock rod 10-2, contact block 10-2-1, spring 10-3.
Detailed Description
Example 1
Referring to fig. 1 and 2, the device for protecting the unexpected movement of the elevator car of the embodiment comprises a car 1, a driving motor 2, a transmission mechanism 3, a linkage mechanism 4, a triggering mechanism 5, a triggering pull wire 6, a stop triggering plate 7, a bidirectional clamp 8 and an elevator guide rail.
The driving motor 2 is provided on the car 1. The transmission mechanism 3 and the linkage mechanism 4 are both connected with the output end of the driving motor 2. The linkage 4 is connected to two doors 1-1 of the car 1. The triggering mechanism 5 comprises a connecting rod assembly 5-1, an elastic triggering assembly 5-2 and a guide seat 5-3. A resilient triggering element 5-2 is arranged on the car 1. The connecting rod assembly 5-1 is arranged on the guide seat 5-3 and the elastic triggering assembly 5-2 in a penetrating way and is connected with the transmission mechanism 3. The link assembly 5-1 is axially moved under the urging of the transmission 3 into engagement with a stop trigger plate 7 provided on the elevator guide rail or hoistway wall. The stop trigger plates 7 are provided one at each floor level of the elevator. The two ends of the trigger pull wire 6 are respectively connected with the elastic trigger component 5-2 and the bidirectional clamp 8. The car 1 is provided with a stiffening beam 1-2. The bi-directional clamp 8 is fixed to the stiffening beam 1-2 and cooperates with the elevator guide rail.
The output shaft of the driving motor 2 is fixed with a motor output wheel 2-1. The transmission mechanism 3 comprises a transmission belt 3-1, a shaft seat 3-2, a gear shaft 3-3, a rack 3-4 and a deflector rod 3-5. The shaft seat 3-2 is arranged on the car 1. The gear shaft 3-3 is rotatably connected to the shaft seat 3-2, and the belt pulley 3-3-1 is arranged on the gear shaft 3-3. The transmission belt 3-1 is wound around the motor output wheel 2-1 and the belt pulley 3-3-1. The rack 3-4 is slidably arranged at the rear end of the shaft seat 3-2 and is meshed with the gear shaft 3-3. The deflector rod 3-5 is fixed on the rack 3-4 and is connected with the link assembly 5-1 of the trigger mechanism 5.
The linkage mechanism 4 comprises a first synchronizing wheel 4-1, a second synchronizing wheel 4-2, a door lock steel wire rope 4-3 and a synchronous belt 4-4. The first synchronizing wheel 4-1 and the second synchronizing wheel 4-2 are both provided on the car 1. The door lock wire rope 4-3 is wound around the first synchronizing wheel 4-1 and the second synchronizing wheel 4-2. The two car doors 1-1 are respectively connected with a high-level section 4-3-1 and a low-level section 4-3-2 of a door lock steel wire rope 4-3 between the first synchronous wheel 4-1 and the second synchronous wheel 4-2. The timing belt 4-4 is looped around the motor output wheel 2-1 and the first timing wheel 4-1, or around the motor output wheel 2-1 and the second timing wheel 4-2. The first synchronizing wheel 4-1, the second synchronizing wheel 4-2 and the motor output wheel 2-1 are double grooved wheels.
The elastic triggering component 5-2 of the triggering mechanism 5 comprises a spring fixing seat 5-2-1, a tension spring 5-2-2 and a guide sleeve 5-2-3. The guide sleeve 5-2-3 is sleeved on the connecting rod assembly 5-1. The spring fixing seat 5-2-1 and the extension spring 5-2-2 are respectively arranged on two sides of the guide sleeve 5-2-3. Two spring fixing seats 5-2-1 are fixed with the car 1, and two ends of each extension spring 5-2-2 are respectively connected with one spring fixing seat 5-2-1 and one guide sleeve 5-2-3. The trigger pull wire 6 is provided with two. One end of each trigger pull wire 6 is connected with the two-way clamp 8, and the other ends of the two trigger pull wires 6 are respectively connected with the upper part and the lower part of the guide sleeve 5-2-3. Two baffle rods which are arranged up and down are arranged on the spring fixing seat 5-2-1 close to the bidirectional clamp 8, and the two baffle rods respectively support the two trigger pull wires 6.
The linkage assembly 5-1 of the trigger mechanism 5 includes a first linkage 5-1-1 and a second linkage 5-1-2. The first connecting rod 5-1-1 is connected with the transmission mechanism 3. The second connecting rod 5-1-2 is hinged with the first connecting rod 5-1-1 and can be turned up and down. The guide sleeve 5-2-3 of the elastic triggering component 5-2 is sleeved on the second connecting rod 5-1-2. The guide seat 5-3 is fixed on the car 1 and sleeved on the first connecting rod 5-1-1. The end part of the first connecting rod 5-1-1 is provided with a waist hole. One end of a deflector rod 3-5 of the transmission mechanism 3 extends into the waist hole.
The stop trigger plate 7 is provided with a kidney-shaped through hole 7-1 matched with the second connecting rod 5-1-2 of the connecting rod assembly 5-1 of the trigger mechanism 5.
The trigger mechanism 5 also includes a micro-switch 5-4. The guide sleeve 5-2-3 of the elastic triggering component 5-2 is provided with a switch fork 5-2-4 matched with the micro switch 5-4. The micro switch 5-4 is connected in series in the elevator safety loop.
The top and the bottom of the front end of the car 1 are respectively provided with a car door guide rail 1-3 and a sill 1-4. The top of the car door 1-1 is provided with a connecting sheet 1-1-1. The connecting sheet 1-1-1 is rotatably connected with a roller 1-1-2 which is arranged on the car door guide rail 1-3. The top of the connecting sheet 1-1-1 extends upwards to be connected with the linkage mechanism 4. The bottom of the car door 1-1 is provided with a car door sliding block 1-1-3 which is in sliding connection with the sill 1-4.
When the elevator car 1 moves to a flat floor, the driving motor 2 works, the driving belt 3-1 and the synchronous belt 4-4 are driven by the motor output wheel 2-1 to synchronously work, the synchronous belt 4-4 drives the first synchronous wheel 4-1 or the second synchronous wheel 4-2 to enable the door lock steel wire rope 4-3 to drive the elevator car door 1-1 to open, the driving belt 3-1 drives the gear shaft 3-3 to rotate to enable the rack 3-4 to move, the connecting rod assembly 5-1 is pushed by the driving rod 3-5 to axially displace, the second connecting rod 5-1-2 extends into the kidney-shaped through hole 7-1 of the stop trigger plate 7, when the elevator car 1 is sheared, the second connecting rod 5-1-2 is contacted with the kidney-shaped through hole 7-1 of the stop trigger plate 7 to generate relative displacement, the driving guide sleeve 5-2-3 to move, the trigger pull wire 6 to be tensioned, the bidirectional clamp 8 is triggered to work to clamp the elevator guide rail, the elevator car 1 is effectively stopped, and simultaneously the switch fork 5-2-3 of the guide sleeve 5-3 triggers the elevator car 5-4 to open a safety loop.
Example 2
Referring to fig. 3, this embodiment is substantially the same as embodiment 1 except that:
the present embodiment further comprises a guide rod mechanism 9 and a shock absorber 10. The guide rod mechanism 9 is provided on the car 1. The shock absorbers 10 are provided on the hoistway wall, one at each floor level position of the elevator. The guide rod mechanism 9 comprises a positioning seat 9-1, a guide rod 9-2, a guide rod motor 9-3, a threaded sleeve 9-4 and a contact switch. The positioning seat 9-1 is fixed on the car 1. The front part of the guide rod 9-2 penetrates through the positioning seat 9-1 seat and is in sliding connection with the positioning seat 9-1. The rear part of the guide rod 9-2 has a circular cross section and the outer wall is provided with threads. The threaded sleeve 9-4 is sleeved on the rear part of the guide rod 9-2 and is in threaded connection with the rear part of the guide rod 9-2. The guide rod motor 9-3 is fixed on the car 1, and an output shaft of the guide rod motor 9-3 is connected with the threaded sleeve 9-4 through a coupler. After each floor of the car 1, the front portion of the guide bar 9-2 is located above the damper 10. The contact switch is arranged in the middle of the sill 1-4 of the car 1 and is electrically connected with the guide rod motor 9-3. The contact switch triggers the guide rod motor 9-3 to rotate forward when contacting with the car door 1-1, and triggers the guide rod motor 9-3 to rotate backward when not contacting with the car door 1-1. The front section of the guide rod 9-2 of the guide rod mechanism 9 is rectangular.
Shock absorber 10 includes a base 10-1, a shock rod 10-2 and a spring 10-3. The base 10-1 is fixed to the hoistway wall. The top end surface of the base 10-1 is provided with a blind hole. The bottom of the shock rod 10-2 extends into the blind hole. The top of the shock absorbing rod 10-2 is provided with a contact block 10-2-1 matched with the front part of the guide rod 9-2 of the guide rod mechanism 9. The spring 10-3 is sleeved on the shock absorbing rod 10-2.
When the elevator car 1 moves to a flat floor, after the elevator car door 1-1 is opened, the contact switch is released to trigger the guide rod motor 9-3 to work, the guide rod motor 9-3 drives the threaded sleeve 9-4 to rotate to axially displace the guide rod 9-2 to the position right above the shock absorber 10, and when the elevator car 1 does not shear, after the elevator car door 1-1 is closed, the elevator car door 1-1 triggers the contact switch to enable the guide rod motor 9-3 to reversely and positively drive the guide rod 9-2 to reset.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (8)
1. An unexpected protection device that removes of elevator car, its characterized in that: comprises a lift car (1), a driving motor (2), a transmission mechanism (3), a linkage mechanism (4), a trigger mechanism (5), a trigger stay wire (6), a stop trigger plate (7) and a bidirectional clamp (8); the driving motor (2) is arranged on the car (1); the transmission mechanism (3) and the linkage mechanism (4) are connected with the output end of the driving motor (2); the linkage mechanism (4) is connected with two car doors (1-1) of the car (1); the trigger mechanism (5) comprises a connecting rod assembly (5-1), an elastic trigger assembly (5-2) and a guide seat (5-3); the elastic triggering component (5-2) is arranged on the car (1); the connecting rod assembly (5-1) is arranged on the guide seat (5-3) and the elastic triggering assembly (5-2) in a penetrating way and is connected with the transmission mechanism (3); the connecting rod assembly (5-1) axially moves under the pushing of the transmission mechanism (3) to be matched with a stop trigger plate (7) arranged on an elevator guide rail or a hoistway wall; the stop trigger plate (7) is arranged at each level position of the elevator; two ends of the trigger stay wire (6) are respectively connected with the elastic trigger assembly (5-2) and the bidirectional clamp (8), and the elastic trigger assembly (5-2) of the trigger mechanism (5) comprises a spring fixing seat (5-2-1), an extension spring (5-2-2) and a guide sleeve (5-2-3); the guide sleeve (5-2-3) is sleeved on the connecting rod assembly (5-1); the spring fixing seat (5-2-1) and the extension spring (5-2-2) are respectively arranged on two sides of the guide sleeve (5-2-3); the two spring fixing seats (5-2-1) are fixed with the car (1), and two ends of each extension spring (5-2-2) are respectively connected with one spring fixing seat (5-2-1) and the guide sleeve (5-2-3); the two ends of the trigger pull wire (6) are respectively connected with the guide sleeve (5-2-3) and the two-way clamp (8).
2. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: a motor output wheel (2-1) is fixed on an output shaft of the driving motor (2); the transmission mechanism (3) comprises a transmission belt (3-1), a shaft seat (3-2), a gear shaft (3-3), a rack (3-4) and a deflector rod (3-5); the shaft seat (3-2) is arranged on the car (1); the gear shaft (3-3) is rotatably connected to the shaft seat (3-2), and a belt pulley (3-3-1) is arranged on the gear shaft (3-3); the transmission belt (3-1) surrounds the motor output wheel (2-1) and the belt pulley (3-3-1); the rack (3-4) is arranged at the rear end of the shaft seat (3-2) in a sliding manner and is meshed with the gear shaft (3-3); the deflector rod (3-5) is fixed on the rack (3-4) and is connected with the connecting rod assembly (5-1) of the trigger mechanism (5).
3. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: a motor output wheel (2-1) is fixed on an output shaft of the driving motor (2); the linkage mechanism (4) comprises a first synchronous wheel (4-1), a second synchronous wheel (4-2), a door lock steel wire rope (4-3) and a synchronous belt (4-4); the first synchronous wheel (4-1) and the second synchronous wheel (4-2) are arranged on the lift car (1); the door lock steel wire rope (4-3) is wound on the first synchronous wheel (4-1) and the second synchronous wheel (4-2); the two lift gates (1-1) are respectively connected with a high-position section (4-3-1) and a low-position section (4-3-2) of a door lock steel wire rope (4-3) between the first synchronous wheel (4-1) and the second synchronous wheel (4-2); the synchronous belt (4-4) is wound on the motor output wheel (2-1) and the first synchronous wheel (4-1) or wound on the motor output wheel (2-1) and the second synchronous wheel (4-2).
4. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: the connecting rod assembly (5-1) of the triggering mechanism (5) comprises a first connecting rod (5-1-1) and a second connecting rod (5-1-2); the first connecting rod (5-1-1) is connected with the transmission mechanism (3); the second connecting rod (5-1-2) is hinged with the first connecting rod (5-1-1) and can be turned up and down; the guide sleeve (5-2-3) of the elastic triggering assembly (5-2) is sleeved on the second connecting rod (5-1-2); the guide seat (5-3) is fixed on the car (1) and sleeved on the first connecting rod (5-1-1).
5. The unexpected movement protection device for an elevator car according to claim 4, wherein: the stop trigger plate (7) is provided with a kidney-shaped through hole (7-1) matched with a second connecting rod (5-1-2) of the connecting rod assembly (5-1) of the trigger mechanism (5).
6. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: the triggering mechanism (5) further comprises a micro switch (5-4); a switch fork (5-2-4) matched with the micro switch (5-4) is arranged on the guide sleeve (5-2-3) of the elastic triggering assembly (5-2); the micro switch (5-4) is connected in series in the elevator safety loop.
7. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: a reinforcing beam (1-2) is arranged on the lift car (1); the bidirectional clamp (8) is fixed on the reinforcing beam (1-2).
8. The unexpected movement protection device of an elevator car according to claim 1, characterized in that: the top and the bottom of the front end of the lift car (1) are respectively provided with a lift car door guide rail (1-3) and a sill (1-4); the top of the car door (1-1) is provided with a connecting sheet (1-1-1); the connecting piece (1-1-1) is rotatably connected with a roller (1-1-2) which is arranged on the car door guide rail (1-3); the top of the connecting sheet (1-1-1) extends upwards to be connected with the linkage mechanism (4); the bottom of the car door (1-1) is provided with a car door sliding block (1-1-3) which is in sliding connection with the sill (1-4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346092.1A CN109969900B (en) | 2019-04-26 | 2019-04-26 | Unexpected protection device that removes of elevator car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346092.1A CN109969900B (en) | 2019-04-26 | 2019-04-26 | Unexpected protection device that removes of elevator car |
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| CN109969900A CN109969900A (en) | 2019-07-05 |
| CN109969900B true CN109969900B (en) | 2024-02-02 |
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| CN201910346092.1A Active CN109969900B (en) | 2019-04-26 | 2019-04-26 | Unexpected protection device that removes of elevator car |
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| CN110980486A (en) * | 2019-12-27 | 2020-04-10 | 贵州中航电梯有限责任公司 | Safety protection device for preventing elevator from falling |
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