CN113023521B - Safety anti-falling device suitable for multi-car circulating running elevator and implementation method - Google Patents
Safety anti-falling device suitable for multi-car circulating running elevator and implementation method Download PDFInfo
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- CN113023521B CN113023521B CN202110249315.XA CN202110249315A CN113023521B CN 113023521 B CN113023521 B CN 113023521B CN 202110249315 A CN202110249315 A CN 202110249315A CN 113023521 B CN113023521 B CN 113023521B
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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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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
- B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
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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
- B66B5/185—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 by acting on main ropes or main cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/022—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rack and pinion drives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/16—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with clutching members having interengaging parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides a safe anti-falling device suitable for a multi-car circulating running elevator, which comprises a speed limiter fixed at the top of a car, wherein the speed limiter comprises a support, a rotating shaft is connected to the support, and the rotating shaft synchronously rotates along with the running of the car; the rotating shaft is provided with a main wheel which rotates synchronously with the rotating shaft and a driven wheel which is sleeved with the rotating shaft; the main wheel is provided with a throwing block and a trigger device, and the driven wheel is connected with a stop lever; a tension wheel fixed at the bottom of the lift car; the transmission mechanism is arranged on the tension wheel and the driven wheel; the safety gear is fixed at the bottom of the car; and one end of the lifting mechanism is connected with the transmission mechanism, the other end of the lifting mechanism is linked with the safety tongs, and when the transmission mechanism drives the tension wheel to synchronously rotate, the lifting mechanism is synchronously driven to lift the tongs in the safety tongs so as to clamp the guide rail and complete the braking of the lift car.
Description
Technical Field
The invention belongs to the technical field of multi-car circularly operated elevators, and particularly relates to a safe anti-falling device suitable for a multi-car circularly operated elevator and an implementation method.
Background
In order to meet the requirements of high-rise buildings and even super high-rise buildings which are increasingly developed and improve vertical transportation efficiency, a multi-car circulating operation elevator is suitable for transportation, but in the traditional safety anti-falling device of a steel wire rope traction elevator, the speed limiter is mainly arranged at a floor of a machine room by means of the combined action of the speed limiter and a safety clamp, steel wire ropes at two ends are respectively connected with a tension pulley and a car, and the tension pulley is positioned at the bottom of an elevator shaft to play a role of pulling the steel wire ropes tightly.
Chinese patent application CN112249836A provides a multi-car circulation elevator for high-rise buildings and a control method thereof. When the rail is changed in a rotating mode, if the same counterweight traction driving as that of a traditional traction type elevator is adopted, the steel wire ropes of the multi-car circulating operation elevator cannot be kept stable, so that the steel wire ropes of the multiple cars are wound with each other, and the potential safety hazard is very serious.
If the steel wire rope is cancelled, the safety anti-falling device cannot imitate the traditional elevator, and the speed limiter is used for driving the steel wire rope to drive the safety tongs to perform anti-falling braking.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the safety anti-falling device is suitable for a multi-car circulating running elevator and an implementation method, and provides safety guarantee for the elevator without traction drive.
The technical scheme adopted by the invention for solving the technical problems is as follows: a safety anti-falling device suitable for a multi-car circulating operation elevator comprises cars, wherein the cars and guide rails in the inner wall of a shaft run in a gear and rack driving mode;
this safe anti-falling device includes:
the speed limiter is fixed on the top of the lift car and comprises a support, a rotating shaft is connected to the support, and the rotating shaft synchronously rotates along with the operation of the lift car; the rotating shaft is provided with a main wheel which rotates synchronously with the rotating shaft and a driven wheel which is sleeved with the rotating shaft; the main wheel is provided with a throwing block and a trigger device, and the driven wheel is connected with a stop lever; when the lift car stalls, so that the rotating speed of the main wheel exceeds a threshold value, the triggering device triggers the throwing block to throw out and lock the catch lever, and the driven wheel is driven to rotate along with the main wheel;
a tension wheel fixed at the bottom of the lift car;
the transmission mechanism is arranged on the tension wheel and the driven wheel, and drives the tension wheel to synchronously rotate when the driven wheel rotates;
the safety gear is fixed at the bottom of the car and runs on the guide rail together with the car;
and one end of the lifting mechanism is connected with the transmission mechanism, the other end of the lifting mechanism is linked with the safety tongs, and when the transmission mechanism drives the tensioning wheels to synchronously rotate, the lifting mechanism is synchronously driven to lift the tongs in the safety tongs, so that the guide rail is clamped, and the braking of the lift car is completed.
According to the scheme, the triggering device comprises a main wheel spring, one end of the main wheel spring is fixed on the main wheel, the other end of the main wheel spring is connected with the throwing block, and the centrifugal force of the throwing block is larger than the maximum tensile force of the main wheel spring when the lift car stalls and is thrown out.
According to the scheme, the throwing block is at least 2 claws, and the 2 claws are connected through the throwing block connecting rod to synchronously act.
According to the scheme, the transmission mechanism is a transmission rope.
According to the scheme, the transmission rope is a steel wire rope.
According to the scheme, the lifting mechanism comprises a connecting rod and a safety operating rod, one end of the connecting rod is connected with the transmission mechanism, the other end of the connecting rod is connected with one end of the safety operating rod, the other end of the safety operating rod extends to a lifting hole of the safety tongs and is connected with a wedge block in the safety tongs, and a fulcrum is arranged on the connecting rod and fixed on the side part of the lift car; when the transmission mechanism rotates along with the driven wheel, one end of the connecting rod is pulled to move downwards, and the other end of the connecting rod moves upwards, so that the safety operating rod is driven to lift the wedge blocks of the safety tongs.
According to the scheme, the transmission mechanism is a transmission rope; be equipped with the hole that supplies the driving rope to pass on the connecting rod, the inner wall in hole is equipped with the piece of stopping, and the piece of stopping is connected with the connecting rod through compression state's connecting rod spring, and the elasticity of connecting rod spring makes the piece of stopping extrusion driving rope make the driving rope not slide easily when not receiving the pulling force, and the piece relative friction of stopping when the driving rope receives the pulling force of certain size plays the effect of buffering pulling force, makes direct pulling force become power, protection device step by step.
According to the scheme, the guide rail is provided with the rack, the rotating shaft is provided with the gear, and the rotating shaft is meshed with the rack through the gear and the rack so as to synchronously rotate along with the running of the lift car.
The implementation method of the safety anti-falling device suitable for the multi-car circulating running elevator comprises the following steps:
when the lift car stalls, the rotating shaft rotates in an accelerating mode, the rotating speed of the main wheel exceeds a threshold value, the trigger device triggers the throwing block to throw out and the stop lever to be locked, and therefore the driven wheel is driven to rotate along with the main wheel;
the transmission mechanism drives the tension wheel to synchronously rotate;
the transmission mechanism synchronously drives the lifting mechanism to lift the clamp part in the safety tongs, so that the guide rail is clamped, and the braking of the lift car is completed.
The invention has the beneficial effects that:
1. the invention is suitable for a multi-car circulating running elevator which runs in a gear rack driving mode, the whole safety anti-falling device is connected with the cars into a whole which is arranged on the upper part and the lower part, the space of devices such as a motor and the like on the inner side of a driving plate can not be occupied, the safe rotation of the multi-car circulating running elevator can be realized, and the safety anti-falling device is well matched with the multi-car circulating running elevator.
2. The speed limiter adopts a trigger design of a pure mechanical structure, and has no hidden danger of electric signal faults.
3. The brake sheet is arranged between the lifting mechanism and the transmission mechanism, so that the buffer of the connecting rod is provided, the instant tension of the transmission rope is buffered, and the instant tension is changed into a gradual force protection device.
Drawings
Fig. 1 is a side view of the relative position of portions of an elevator car in a multi-car cycle in accordance with an embodiment of the present invention.
Fig. 2 is a front view of the governor in an embodiment of the present invention.
Fig. 3 is a top view of a governor in an embodiment of the present invention.
Fig. 4 is a three-dimensional view of a governor in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a governor main wheel according to an embodiment of the present invention.
Fig. 6 is a schematic view of the governor from wheel in an embodiment of the present invention.
In the figure: 1. the safety device comprises a speed limiter, 2 parts of a transmission rope, 3 parts of a tension pulley, 4 parts of a connecting rod, 5 parts of a safety operation pull rod, 6 parts of safety tongs, 7 parts of a rack, 8 parts of a driving plate, 9 parts of a car, 10 parts of a guide rail, 11 parts of a brake sheet, 12 parts of a connecting rod spring, 13 parts of a driven wheel, 14 parts of a main wheel, 15 parts of a stop lever, 16 parts of a rotating shaft, 17 parts of a gear, 18 parts of a support, 19 parts of a throwing block, 20 parts of the main wheel spring and 21 parts of a throwing block connecting rod.
Detailed Description
The invention is further illustrated by the following specific examples and figures.
As shown in fig. 1 to 6, the invention provides a safety anti-falling device suitable for a multi-car circulating elevator, wherein the multi-car circulating elevator comprises a car 9, and the car 9 and a guide rail 10 in the inner wall of a hoistway run in a gear and rack driving mode. This safe anti-falling device includes:
the speed limiter 1 is fixed on the top of the car 9, the speed limiter 1 comprises a support 18, a rotating shaft 16 is connected to the support 18, and the rotating shaft 16 synchronously rotates along with the running of the car 9; the rotating shaft 16 is provided with a main wheel 14 which rotates synchronously with the rotating shaft 16 and a driven wheel 13 which is sleeved with the rotating shaft 16; the main wheel 14 is provided with a throwing block 19 and a trigger device, and the driven wheel 13 is connected with a stop lever 15; when the car 9 runs normally, the driven wheel 13 does not move, the triggering device rotates along with the main wheel 14, and when the car 9 stalls so that the rotating speed of the main wheel 14 exceeds a threshold value, the triggering device triggers the throwing block 19 to throw out and lock the blocking rod 15, so that the driven wheel 13 is driven to rotate along with the main wheel 14. The triggering device in this embodiment includes a main wheel spring 20, one end of the main wheel spring 20 is fixed on the main wheel 14, the other end of the main wheel spring 20 is connected to the throwing block 19, and the centrifugal force of the throwing block 19 is greater than the maximum pulling force of the main wheel spring 20 when the car 9 stalls and is thrown out. The throwing block is at least 2 claws, and the 2 claws are connected through a throwing block connecting rod 21 to act synchronously. The trigger device utilizes the centrifugal force principle and adopts a pure mechanical structure, thereby avoiding the hidden danger caused by electrical faults and being more reliable. In the embodiment, the driven wheel is actually a bearing, so that the steel wire rope is ensured to be static in a stable running state.
And the tension wheel 3 is fixed at the bottom of the lift car 9.
And the transmission mechanism is arranged on the tension wheel 3 and the driven wheel 13, and when the driven wheel 13 rotates, the transmission mechanism drives the tension wheel 3 to synchronously rotate. In this embodiment, the transmission mechanism is a transmission rope 2, and a steel wire rope is generally used.
The safety gear 6, which is fixed to the bottom of the car, runs together with the car 9 on guide rails 10.
And one end of the lifting mechanism is connected with the transmission mechanism, the other end of the lifting mechanism is linked with the safety tongs 6, and when the transmission mechanism drives the tension wheel 3 to synchronously rotate, the lifting mechanism is synchronously driven to lift the tongs in the safety tongs 6, so that the guide rail 10 is clamped, and the braking of the lift car is completed.
In this embodiment, the lifting mechanism includes a connecting rod 4 and a safety operating rod 5, one end of the connecting rod 4 is connected with the transmission mechanism, the other end of the connecting rod 4 is connected with one end of the safety operating rod 5, the other end of the safety operating rod 5 extends to a lifting hole of the safety tongs and is connected with a wedge block in the safety tongs 6, and the connecting rod 4 is provided with a fulcrum which is fixed on the side of the car 9; when the transmission mechanism rotates along with the wheel 13, one end of the connecting rod 4 is pulled to move downwards, and the other end of the connecting rod 4 moves upwards, so that the safety operating rod 5 is driven to lift the wedges of the safety gear 6.
Furthermore, the transmission mechanism is preferably the transmission rope 2, and the connecting rod 4 is provided with a buffer device, so that the instant tension of the steel wire rope can be buffered, and the instant tension is changed into a gradual force protection device. Specifically, be equipped with the hole that supplies driving rope 2 to pass on connecting rod 4, the inner wall in hole is equipped with the piece 11 of stopping, the piece 11 of stopping is connected with connecting rod 4 through compression state's connecting rod spring 12, connecting rod spring 12's elasticity makes the piece 11 extrusion driving rope 2 of stopping make driving rope 2 not slide easily when not receiving the pulling force, 2 receiving the pulling force of a certain size at driving rope with the piece 11 relative friction of stopping, play the effect of buffering pulling force, make direct pulling force become gradual power, protection device.
The guide rail 10 is provided with a rack 7, the rotating shaft 16 is provided with a gear 17, and the rotating shaft 16 is meshed with the rack 7 through the gear 17 so as to synchronously rotate along with the running of the car 9.
The implementation method of the safety anti-falling device suitable for the multi-car circulating running elevator comprises the following steps: when the car 9 stalls, the rotating shaft 16 rotates in an accelerating way, the rotating speed of the main wheel 14 exceeds a threshold value, and the triggering device triggers the throwing block 19 to throw out and lock the blocking rod 15, so that the driven wheel 13 is driven to rotate along with the main wheel 14; the transmission mechanism drives the tension wheel 3 to synchronously rotate; the transmission mechanism synchronously drives the lifting mechanism to lift the clamp part in the safety gear 6, so as to clamp the guide rail 10 and complete the braking of the car 9.
The special speed limiter 1 is integrally connected to the top of a lift car 9, the special speed limiter is installed on a driving plate through an elastic base, a tension pulley 3 is installed on the driving plate at the bottom of the lift car 9, the speed limiter-tension pulley 3 is connected through a transmission rope 2, the whole device is located on the outer side of the driving plate, the integrity is strong, the space of devices such as a motor and the like on the inner side of the driving plate cannot be occupied, the transmission rope 2 only plays a role in conducting force in a safety anti-falling device in the device, and the effect of dragging the lift car is not achieved, so that no steel wire rope exists in other spaces of a hoistway. The tension pulley 3 and the speed limiter 1 move together with the car 9, the safety gear 6 is connected with the guide rail 10 in a sliding way, and one car 9 can be provided with two sets of safety anti-falling devices provided by the invention and arranged at two outer sides of the driving plate.
The device cancels a steel wire rope structure of an elevator shaft main; the motor and the reduction gearbox are connected with the car through the shock absorption device, the whole safety anti-falling device is connected with the car into a whole which is the same as the whole from top to bottom, and the whole process has no steel wire rope from the bottom, so that the safety rotation of the elevator in the multi-car circular operation can be realized.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a safe anti-falling device suitable for many cars circulation operation elevator which characterized in that: the multi-car circulating operation elevator comprises cars, wherein the cars and guide rails in the inner wall of a shaft run in a gear and rack driving mode;
this safe anti-falling device includes:
the speed limiter is fixed on the top of the lift car and comprises a support, a rotating shaft is connected to the support, and the rotating shaft synchronously rotates along with the operation of the lift car; the rotating shaft is provided with a main wheel which rotates synchronously with the rotating shaft and a driven wheel which is sleeved with the rotating shaft; the main wheel is provided with a throwing block and a trigger device, and the driven wheel is connected with a stop lever; when the lift car stalls, so that the rotating speed of the main wheel exceeds a threshold value, the triggering device triggers the throwing block to throw out and lock the catch lever, and the driven wheel is driven to rotate along with the main wheel;
a tension wheel fixed at the bottom of the lift car;
the transmission mechanism is arranged on the tension wheel and the driven wheel, and drives the tension wheel to synchronously rotate when the driven wheel rotates;
the safety gear is fixed at the bottom of the car and runs on the guide rail together with the car;
one end of the lifting mechanism is connected with the transmission mechanism, the other end of the lifting mechanism is linked with the safety tongs, and when the transmission mechanism drives the tensioning wheels to synchronously rotate, the lifting mechanism is synchronously driven to lift the tongs in the safety tongs, so that the guide rail is clamped, and the braking of the lift car is completed;
the lifting mechanism comprises a connecting rod and a safety operating rod, one end of the connecting rod is connected with the transmission mechanism, the other end of the connecting rod is connected with one end of the safety operating rod, the other end of the safety operating rod extends to a lifting hole of the safety tongs and is connected with a wedge block in the safety tongs, and a fulcrum is arranged on the connecting rod and fixed on the side part of the lift car; when the transmission mechanism rotates along with the driven wheel, one end of the connecting rod is pulled to move downwards, and the other end of the connecting rod moves upwards, so that the safety operating rod is driven to lift the wedge block of the safety tongs;
the transmission mechanism is a transmission rope; be equipped with the hole that supplies the driving rope to pass on the connecting rod, the inner wall in hole is equipped with the piece of stopping, and the piece of stopping is connected with the connecting rod through compression state's connecting rod spring, and the elasticity of connecting rod spring makes the piece of stopping extrusion driving rope make the driving rope not slide easily when not receiving the pulling force, and the piece relative friction of stopping when the driving rope receives the pulling force of certain size plays the effect of buffering pulling force, makes direct pulling force become power, protection device step by step.
2. The safety fall arrest device according to claim 1, wherein: the triggering device comprises a main wheel spring, one end of the main wheel spring is fixed on the main wheel, the other end of the main wheel spring is connected with the throwing block, and the centrifugal force of the throwing block is greater than the maximum tensile force of the main wheel spring and is thrown out when the lift car stalls.
3. The safety fall arrest device according to claim 1 or 2, wherein: the throwing block is at least 2 claws, and the 2 claws are connected through a throwing block connecting rod to act synchronously.
4. The safety fall arrest device according to claim 1, wherein: the transmission mechanism is a transmission rope.
5. The safety fall arrest device according to claim 3, wherein: the transmission rope is a steel wire rope.
6. The safety fall arrest device according to claim 1, wherein: the guide rail on be equipped with the rack, the pivot on be equipped with the gear, thereby the pivot passes through the gear and the synchronous rotation of the operation of rack along with the car.
7. The method for implementing the safety anti-falling device suitable for the multi-car circulating running elevator is characterized in that: the method comprises the following steps:
when the lift car stalls, the rotating shaft rotates in an accelerating mode, the rotating speed of the main wheel exceeds a threshold value, the trigger device triggers the throwing block to throw out and the stop lever to be locked, and therefore the driven wheel is driven to rotate along with the main wheel;
the transmission mechanism drives the tension wheel to synchronously rotate;
the transmission mechanism synchronously drives the lifting mechanism to lift the clamp part in the safety tongs, so that the guide rail is clamped, and the braking of the lift car is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249315.XA CN113023521B (en) | 2021-03-08 | 2021-03-08 | Safety anti-falling device suitable for multi-car circulating running elevator and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249315.XA CN113023521B (en) | 2021-03-08 | 2021-03-08 | Safety anti-falling device suitable for multi-car circulating running elevator and implementation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113023521A CN113023521A (en) | 2021-06-25 |
| CN113023521B true CN113023521B (en) | 2022-08-12 |
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| CN202110249315.XA Active CN113023521B (en) | 2021-03-08 | 2021-03-08 | Safety anti-falling device suitable for multi-car circulating running elevator and implementation method |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100514098B1 (en) * | 2003-09-23 | 2005-09-13 | 학교법인 인하학원 | Braking system for lift |
| CN1308214C (en) * | 2004-01-31 | 2007-04-04 | 谭锦泉 | Fall-preventing protection device for lift |
| CN106006287B (en) * | 2016-07-08 | 2018-07-03 | 东南电梯股份有限公司 | A kind of limiter of speed safety tongs shift mechanism for saving ele-vator shaft spaces |
| CN111153304A (en) * | 2020-01-21 | 2020-05-15 | 吴建玉 | Anti-falling speed difference device for elevator |
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| CN113023521A (en) | 2021-06-25 |
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