CN209974037U - Accidental movement protection device for elevator car - Google Patents
Accidental movement protection device for elevator car Download PDFInfo
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- CN209974037U CN209974037U CN201920586655.XU CN201920586655U CN209974037U CN 209974037 U CN209974037 U CN 209974037U CN 201920586655 U CN201920586655 U CN 201920586655U CN 209974037 U CN209974037 U CN 209974037U
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- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 9
- 230000001960 triggered effect Effects 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 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
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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Abstract
The utility model discloses 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 lift 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 assembly is arranged on the lift car; the connecting rod assembly penetrates through the guide seat and the elastic triggering assembly and is connected with the transmission mechanism; the connecting rod assembly moves axially under the pushing of the transmission mechanism and is matched with a stop trigger plate arranged on an elevator guide rail or a shaft wall; the stopping trigger plate is arranged at each floor leveling position of the elevator; two ends of the trigger pull wire are respectively connected with the elastic trigger component and the bidirectional clamp. The utility model discloses realize quick response, effectively make and stop the car, effectively avoid the emergence of car shearing accident.
Description
Technical Field
The utility model relates to an elevator equipment field especially relates to an unexpected protection device that removes of elevator car.
Background
With the rapid development of economy in China, the living standard of people is increasingly improved, and elevators are closely related to the work and life of people. According to the report of the State market supervision and management bureau, the total number of elevators in China reaches 562.7 ten thousands and accounts for 43.4% of the total number of special equipment by 2017, and the number of accidents of the elevators at 56 accounts for 23.53% of the total number of accidents of the special equipment. In recent years, due to frequent elevator accidents, except for partial human accidents, most of the accidents are caused by the failure of an elevator brake and the accidental movement of a car, and particularly, the extrusion and shearing injuries caused by the accidental movement of the car are more striking and alarming, so that the public is greatly alarmed.
When the lift car door of the elevator car is in an open state, the car moves accidentally due to the reasons of failure of a brake, insufficient or lost traction force, small balance coefficient and the like, so that various extrusion and shearing are caused, and personal and property accidents are finally caused. The current solution to this situation is mainly to brake the traction main machine by using a brake or indirectly brake the car by triggering a rope clamping device through a speed limiter. However, the failure of the brake itself is one of the main causes of the accidental movement of the car, and there is a risk that the brake is used as a stopping member of the car accidental movement protection device; the rope clamping device is triggered through the speed limiter, and the speed limiter is triggered to have the danger of delayed operation.
At present, the disclosed document for preventing the car from moving accidentally, for example, patent publication No. CN102372206A, has the following disadvantages:
1. when the stretching mechanism is clamped in the locking hole, vertical force exists between the stretching mechanism and the locking hole due to normal change of the load weight in the lift car, so that the stretching mechanism is difficult to contract and even cannot be retracted, and the elevator cannot realize the functions of leveling and re-leveling.
2. The extension mechanism extends into the locking hole to prevent the car from moving accidentally, and when the car moves accidentally, the force between the extension mechanism and the locking baffle in the vertical direction is very large, so that the method is only suitable for elevators with smaller load capacity and has certain limitation.
3. This patent is under elevator power failure state, and the motor can't move, leads to this protection device inefficacy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can be applicable to permanent magnetism synchronous traction host computer and worm gear traction host computer simultaneously to be applicable to arbitrary load specification elevator, not influence the flat bed of elevator and the flat bed function again, can realize quick response, effectively make the unexpected protection device that removes of elevator car that stops the car.
Realize the utility model discloses the technical scheme of purpose is: the utility model provides an unexpected protection device that removes of elevator car which 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 lift 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 triggering mechanism comprises a connecting rod assembly, an elastic triggering assembly and a guide seat; the elastic trigger assembly is arranged on the lift car; the connecting rod assembly penetrates through the guide seat and the elastic triggering assembly and is connected with the transmission mechanism; the connecting rod assembly moves axially under the pushing of the transmission mechanism and is matched with a stop trigger plate arranged on an elevator guide rail or a shaft wall; the stop trigger plates are respectively arranged at the flat layer position of each layer of the elevator; and two ends of the trigger pull wire are respectively connected with the elastic trigger component and the bidirectional clamp.
A motor output wheel is fixed on an 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 lift car; the gear shaft is rotatably connected to the shaft seat, and a belt pulley is arranged on the gear shaft; the transmission belt is encircled on 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 is meshed with the gear shaft; the shifting lever is fixed on the rack and connected with the connecting rod assembly of the triggering mechanism.
A motor output wheel is fixed on an 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 synchronizing wheel and the second synchronizing wheel are both arranged on the car; the door lock steel wire rope is wound on the first synchronizing wheel and the second synchronizing wheel; the two car doors are respectively connected with the high-position section and the bottom-position section of the door lock steel wire rope between the first synchronizing wheel and the second synchronizing 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 trigger component of the trigger 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 the guide sleeve; and two ends of the trigger pull wire are respectively connected with the guide sleeve and the bidirectional clamp.
The connecting rod assembly of the trigger 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 over up and down; the guide sleeve of the elastic triggering assembly is sleeved on the second connecting rod; the guide holder is fixed on the car and sleeved on the first connecting rod.
And a kidney-shaped through hole matched with a second connecting rod of the connecting rod assembly of the trigger mechanism is formed in the stop trigger plate.
The trigger mechanism further comprises a microswitch; a switch fork matched with the micro switch is arranged on the guide sleeve of the elastic trigger assembly; the microswitch is connected in series in the elevator safety loop.
A stiffening beam is arranged on the lift car; the bidirectional clamp is fixed on the stiffening 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 rotatably connected with a roller lapped on the guide rail; the top of the connecting sheet extends upwards and is connected with the linkage mechanism; and a car door sliding block in sliding connection with the sill is arranged at the bottom of the car door.
By adopting the technical scheme, the utility model discloses following beneficial effect has: (1) the utility model discloses a drive mechanism realizes trigger mechanism and sedan-chair door simultaneous working, and link assembly stretches out in step and triggers the board cooperation with the backstop when the sedan-chair door is opened, when the car accident removed, drives elasticity through link assembly and triggers the subassembly and trigger two-way clamp clamping guide, realizes quick response, effectively makes and stops the car, effectively avoids the emergence of car shearing accident, does not influence the flat bed of car and the flat bed function again moreover, and application scope is wide, is applicable to the elevator of multiple load specification.
(2) The utility model discloses a backstop trigger plate is equipped with the waist shape through-hole with the second connecting rod complex of trigger mechanism's link assembly, and the size of waist shape through-hole can be designed according to actual conditions, satisfies the requirement that the system stopped the distance, and the structure is ingenious, and the reliability is high.
(3) The utility model discloses a trigger mechanism still includes micro-gap switch, elasticity trigger assembly's uide bushing on be equipped with micro-gap switch complex switch fork, micro-gap switch establishes ties in elevator safety circuit, can break off elevator safety circuit simultaneously when triggering the system and stopping, improves security and reliability greatly.
(4) The utility model discloses under the condition that the sedan-chair door was opened, even the elevator is in the power-off state, mechanical type's trigger device still can drive the action of two-way clamp, and the car is stopped in the system, plays the guard action.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is an enlarged view of the area a of fig. 1.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
The reference numbers in the drawings are:
the elevator comprises a lift car 1, a car door 1-1, connecting pieces 1-1-1, rollers 1-1-2, car door sliders 1-1-3, reinforcing beams 1-2, car door guide rails 1-3 and sills 1-4;
a driving motor 2 and a motor output wheel 2-1;
the device comprises a 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 synchronous wheel 4-1, a second synchronous wheel 4-2, a door lock steel wire rope 4-3, a high-position section 4-3-1, a bottom-position 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 microswitch 5-4;
a trigger pull wire 6, a stop trigger plate 7, a waist-shaped through hole 7-1 and a 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-absorbing rod 10-2, contact block 10-2-1 and spring 10-3.
Detailed Description
(example 1)
Referring to fig. 1 and 2, the protection device for accidental movement of an elevator car of the embodiment comprises a car 1, a driving motor 2, a transmission mechanism 3, a linkage mechanism 4, a trigger mechanism 5, a trigger pull wire 6, a stop trigger plate 7, a bidirectional clamp 8 and an elevator guide rail.
The drive 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 mechanism 4 is connected with two car 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. The elastic triggering assembly 5-2 is arranged on the car 1. The connecting rod assembly 5-1 penetrates through the guide seat 5-3 and the elastic triggering assembly 5-2 and is connected with the transmission mechanism 3. The connecting rod assembly 5-1 moves axially under the push of the transmission mechanism 3 to be matched with a stop trigger plate 7 arranged on a guide rail or a shaft wall of the elevator. The stop trigger plates 7 are arranged one at each floor leveling position of the elevator. 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 reinforcing beam 1-2. A two-way clamp 8 is fixed to the reinforcing beam 1-2 and cooperates with the elevator guide rails.
A motor output wheel 2-1 is fixed on the 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 rotationally connected to the shaft seat 3-2, and the gear shaft 3-3 is provided with a belt pulley 3-3-1. The transmission belt 3-1 is wound on 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 shift lever 3-5 is fixed on the rack 3-4 and is connected with the connecting rod component 5-1 of the trigger mechanism 5.
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 pulley 4-1 and the second synchronous pulley 4-2 are both arranged on the car 1. A 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 car doors 1-1 are respectively connected with a high section 4-3-1 and a bottom 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. The first synchronous wheel 4-1, the second synchronous wheel 4-2 and the motor output wheel 2-1 are double grooved wheels.
The elastic trigger component 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 component 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 lift 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. Two trigger pull wires 6 are arranged. One ends of the two trigger pull wires 6 are connected with the bidirectional 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 stop 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 stop rods respectively support 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 lift 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 backstop 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 component 5-1 of the trigger mechanism 5.
The trigger mechanism 5 further comprises a microswitch 5-4. A switch fork 5-2-4 matched with the micro switch 5-4 is arranged on a guide sleeve 5-2-3 of the elastic trigger component 5-2. 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 cage 1 are respectively provided with cage door guide rails 1-3 and sills 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 rollers 1-1-2 which are lapped on the car door guide rail 1-3. The top of the connecting sheet 1-1-1 extends upwards and is 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 is used, 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 to synchronously work through the motor output wheel 2-1, 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 deflector rod 3-5 pushes the connecting rod assembly 5-1 to axially displace, the second connecting rod 5-1-2 extends into the waist-shaped through hole 7-1 of the backstop trigger plate 7, when the elevator car 1 is sheared, and when the elevator car 1 unexpectedly moves upwards or downwards, the second connecting rod 5-1-2 is in contact with the wall of the waist-shaped through hole 7-1 of the backstop trigger plate 7, the relative displacement is generated to drive the guide sleeve 5-2-3 to move, the trigger pull wire 6 is tensioned, the bidirectional clamp 8 is triggered to work to clamp the elevator guide rail, the lift car 1 is effectively stopped, and meanwhile, the switch fork 5-2-4 of the guide sleeve 5-2-3 triggers the microswitch 5-4 to disconnect the elevator 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 bar mechanism 9 and a shock absorber 10. The guide bar mechanism 9 is provided on the car 1. The dampers 10 are disposed on the hoistway wall, one damper 10 being disposed at each level 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 and is connected with the positioning seat 9-1 in a sliding manner. The section of the rear part of the guide rod 9-2 is circular, 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. The front part of the guide rod 9-2 is located above the shock absorber 10 after each floor of the car 1. 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. When the contact switch is in contact with the car door 1-1, the guide rod motor 9-3 is triggered to rotate forwards, and when the contact switch is not in contact with the car door 1-1, the guide rod motor 9-3 is triggered to rotate backwards. The front section of the guide rod 9-2 of the guide rod mechanism 9 is rectangular.
The shock absorber 10 includes a base 10-1, a shock absorbing rod 10-2 and a spring 10-3. The base 10-1 is fixed to the wall of the hoistway. The top end face of the base 10-1 is provided with a blind hole. The bottom of the shock absorbing 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 which is 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 is used, when the elevator car 1 moves to a flat floor, the contact switch is released after the elevator car door 1-1 is opened, so that the guide rod motor 9-3 is triggered to work, the guide rod motor 9-3 drives the threaded sleeve 9-4 to rotate, so that the guide rod 9-2 moves axially to the front part of the guide rod 9-2 and is positioned right above the shock absorber 10, and when the elevator car 1 is not sheared, the elevator car door 1-1 triggers the contact switch, so that the guide rod motor 9-3 drives the guide rod 9-2 to reset in a reverse direction.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. Unexpected protection device that removes of elevator car, its characterized in that: the device comprises a lift car (1), a driving motor (2), a transmission mechanism (3), a linkage mechanism (4), a trigger mechanism (5), a trigger pull wire (6), a stop trigger plate (7) and a bidirectional clamp (8); the driving motor (2) is arranged on the lift 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 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 trigger 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 mode and is connected with the transmission mechanism (3); the connecting rod assembly (5-1) moves axially under the pushing of the transmission mechanism (3) and is matched with a stop trigger plate (7) arranged on an elevator guide rail or a shaft wall; the stop trigger plates (7) are respectively arranged at the leveling positions of each floor of the elevator; two ends of the trigger pull wire (6) are respectively connected with the elastic trigger component (5-2) and the bidirectional clamp (8).
2. The elevator car accidental movement protection device of claim 1, wherein: 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) is wound on 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 shifting lever (3-5) is fixed on the rack (3-4) and is connected with the connecting rod component (5-1) of the trigger mechanism (5).
3. The elevator car accidental movement protection device of claim 1, wherein: 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 both arranged on the 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 car doors (1-1) are respectively connected with a high section (4-3-1) and a bottom section (4-3-2) of a door lock steel wire rope (4-3) between the first synchronizing wheel (4-1) and the second synchronizing wheel (4-2); the synchronous belt (4-4) is wound around the motor output wheel (2-1) and the first synchronous wheel (4-1) or wound around the motor output wheel (2-1) and the second synchronous wheel (4-2).
4. The elevator car accidental movement protection device of claim 1, wherein: the elastic trigger component (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 lift 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); two ends of the trigger pull wire (6) are respectively connected with the guide sleeve (5-2-3) and the bidirectional clamp (8).
5. The elevator car accidental movement protection device of claim 4, wherein: the connecting rod assembly (5-1) of the trigger 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 over up and down; the guide sleeve (5-2-3) of the elastic trigger 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).
6. The elevator car accidental movement protection device of claim 5, wherein: 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).
7. The elevator car accidental movement protection device of claim 4, wherein: the trigger mechanism (5) also comprises a microswitch (5-4); a switch fork (5-2-4) matched with the microswitch (5-4) is arranged on a guide sleeve (5-2-3) of the elastic trigger component (5-2); the microswitch (5-4) is connected in series in the elevator safety loop.
8. The elevator car accidental movement protection device of claim 1, wherein: a reinforcing beam (1-2) is arranged on the lift car (1); the bidirectional clamp (8) is fixed on the reinforcing beam (1-2).
9. The elevator car accidental movement protection device of claim 1, wherein: 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 piece (1-1-1) is rotatably connected with a roller (1-1-2) lapped on the car door guide rail (1-3); the top of the connecting sheet (1-1-1) extends upwards and is 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586655.XU CN209974037U (en) | 2019-04-26 | 2019-04-26 | Accidental movement protection device for elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586655.XU CN209974037U (en) | 2019-04-26 | 2019-04-26 | Accidental movement protection device for elevator car |
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| Publication Number | Publication Date |
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| CN209974037U true CN209974037U (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920586655.XU Withdrawn - After Issue CN209974037U (en) | 2019-04-26 | 2019-04-26 | Accidental movement protection device for elevator car |
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| CN (1) | CN209974037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN111824897A (en) * | 2020-08-03 | 2020-10-27 | 陶天富 | Safety protection device for preventing accidental movement and overspeed of lift car of elevator |
-
2019
- 2019-04-26 CN CN201920586655.XU patent/CN209974037U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN109969900B (en) * | 2019-04-26 | 2024-02-02 | 湖南省特种设备检验检测研究院 | Unexpected protection device that removes of elevator car |
| CN111824897A (en) * | 2020-08-03 | 2020-10-27 | 陶天富 | Safety protection device for preventing accidental movement and overspeed of lift car of elevator |
| CN111824897B (en) * | 2020-08-03 | 2022-04-12 | 深圳市中航南光电梯工程有限公司 | Safety protection device for preventing accidental movement and overspeed of lift car of elevator |
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