CN102862893A - Lifting plier device of elevator car - Google Patents
Lifting plier device of elevator car Download PDFInfo
- Publication number
- CN102862893A CN102862893A CN201110189051XA CN201110189051A CN102862893A CN 102862893 A CN102862893 A CN 102862893A CN 201110189051X A CN201110189051X A CN 201110189051XA CN 201110189051 A CN201110189051 A CN 201110189051A CN 102862893 A CN102862893 A CN 102862893A
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- voussoir
- car
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- safety
- lifting
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Abstract
The invention discloses an anti-drop safety device of an elevator car having a lifting plier (2), aiming at adding safety protection for the use of an elevator; a lever (7) and a wedge block (4) are ejected by a brake spring (8) in case that a steel wire rope which is used for hanging the elevator car or a speed limiting steel wire rope is broken by accident, so that the lifting plier (2) is locked on a guide rail (1); the safety plier safety of the elevator car is driven to act through a connecting rod (6), and the elevator car is stopped on the guide rail (1), so that the car is prevented from dropping over the speed and the safety reliability of the elevator is enhanced.
Description
Technical field
The present invention relates to a kind of lift car anti-dropping safety device, especially relate to a kind of lift car anti-dropping safety device that lifting pincers is arranged.
Background technology
Existing elevator anti-fall device is on the guide rail of the both sides of car, respectively be provided with the safety tongs of a synchronization action, on the safety tongs action lever, be fixed with steel cable, steel rope hangs on the velocity limiter rotating disk of machine room the inside, during the elevator up-and-down movement, steel cable drives the velocity limiter dial rotation, when the lift car downstream rate surpass setting speed 115% the time, the speed limiting mechanism of velocity limiter begins action, holds steel rope and rotating disk tightly, and the safety tongs lever drives safety tongs system above the steel rope pulling car produces braking maneuver, the guide rail generation friction self-locking on safety tongs and car both sides, with the lift car stop on guide rail.If speed limiter wire rope is unexpected fracture also, the anti-fall safety tongs system of speed limit just can not move, and car can not get anti-falling protection, can cause serious consequence.
Summary of the invention
The objective of the invention is to propose a kind of safety tongs movement device with the spring underaction, when the speed limit wire cable rupture, still can produce to the lift car of hypervelocity tenesmus the stop action, increased double insurance for car is anti-fall, improve the safe reliability of elevator.
Technical solution of the present invention is: on the basis of the original safety tongs of car, increase by a cover lifting pincers mechanism, relative displacement up and down can occur between this cover mechanism and the car, anti-fall speed limit steel wire lower end is connected on the action lever of lifting pincers, a retarding spring is arranged between lifting pincers action lever and the car safety shift mechanism, and gravity and the part tension weight masterpiece of speed limit steel wire part self are used on the retarding spring.When car normally moved, tension weight was a relatively stable constant power, and the gravity of speed limit steel rope self can change along with the variation of cage operation height.When car ran down to lowest part, the stress that is carried on the retarding spring was minimum, and the gap between lifting pincers voussoir and the guide rail is also minimum at this moment.When speed limit steel wire fracture and the tenesmus of generation hypervelocity, the tension weight power that acts on the retarding spring disappears, the gravity of speed limit steel wire self, the speed that drops along with car is the inverse ratio variation, little when also becoming than normal operation, retarding spring discharges the energy that resets in the situation that external force diminishes unusually, promote lifting pincers lever, jack-up lifting pincers voussoir and guide rail generation friction self-locking.A connecting rod is arranged between the shift mechanism of lifting pincers and car safety, and when lifting pincers was locked on the guide rail, connecting rod drove the car safety action, the car stop on guide rail.
Description of drawings
Fig. 1: structural representation of the present invention.
Among Fig. 1: guide rail (1), lifting pincers (2), voussoir connecting device (3), voussoir (4), speed limit steel wire upper end (5), connecting rod (6), lever (7), retarding spring (8), shift mechanism (9), speed limit steel wire lower end (10), car safety (11), safety tongs voussoir (12)
The specific embodiment
As shown in Figure 1, existing car safety work system is comprised of shift mechanism (9), speed limit steel wire upper end (5) and car safety (11), and car safety (11) is fixed on the car.When the car speeding tenesmus occurs when, velocity limiter in the elevator(lift) machine room is held speed limit steel wire upper end (5) tightly, drive shift mechanism (9) and safety tongs voussoir (12) and do upward movement with respect to car, drive that safety tongs voussoir (12) rises and with guide rail (1) and car safety (11) generation friction self-locking, the car stop on guide rail (1).
The present invention has increased by a cover lifting pincers mechanism on existing safety tongs basis, upper and lower displacement can occur for this cover mechanism and car.Lifting pincers (2) links to each other with shift mechanism (9) by connecting rod (6).Speed limit steel wire lower end (10) is connected on the lever (7), between lever (7) and the shift mechanism (9) retarding spring (8) is arranged, and the rotating fulcrum of lever (7) is on connecting rod (6).
During the elevator normal operation, the self gravitation of the speed limit steel wire tensioning counterweight forces of half and part speed limit steel rope acts on the retarding spring (8) by speed limit steel wire lower end (10) and lever (7), when the speed limit wire cable rupture, tension weight power disappears, when car speeding falls, the self gravitation of part speed limit steel rope also becomes less than originally, after the external force that is applied to retarding spring (8) diminishes, retarding spring (8) discharges the energy that resets, jack-up lever (7), by voussoir connecting device (3) voussoir (4) is pushed to lifting pincers (2) and guide rail (1), produce friction self-locking, lifting pincers (2) is locked on the guide rail (1); Then, lifting pincers (2) changes with car generation upper and lower displacement, drive shift mechanism (9) and safety tongs voussoir (12) action by connecting rod (6), make car safety (11) generation friction self-locking, the car stop on guide rail (1).
Voussoir connecting device (3) is connected 7 with lifting pincers (2), voussoir (4) with lever) the rotating fulcrum that is connected arranged, and, lifting pincers (2) has the Compress Spring effect with being connected of voussoir (4) between the fulcrum, distance variable, voussoir connecting device (3) is connected to fulcrum A with lever (7); Voussoir connecting device (3) has a work point of transition, before lever (7) jack-up does not highly surpass the work point of transition (during the elevator normal operation), fulcrum A is below voussoir connecting device (3), it is downward that Compress Spring acts on the vertical component of voussoir connecting device (3), to the upper rise drag effect of lever (7), voussoir connecting device (3) promotes voussoir (4) away from guide rail (1) and lifting pincers (2); After jack-up highly surpasses the work point of transition (during the unexpected fracture of elevator speed limit steel rope), fulcrum A is more than voussoir connecting device (3), the vertical component that Compress Spring acts on voussoir connecting device (3) makes progress, to the rising starting power effect of lever (7), voussoir connecting device (3) promotes voussoir (4) and contacts with lifting pincers (2) with guide rail (1).
The pin of connecting rod (6) employing activity links connection device and links to each other with shift mechanism (9) with lifting pincers (2), when safeguarding and detect, can easily and fast lifting pincers (2) be connected 9 with shift mechanism) connect or separate.
The lifting pincers system is that the lift car fall arrest has increased safety guard-safeguard one; the steel rope and the speed limit steel rope complete rupture that hang lift car had both been made; the safety tongs system still can move by failure-free; with the lift car stop on guide rail (1); prevent that car from hypervelocity occuring fall, improved the safe reliability of elevator.
Claims (6)
1. lift car lifting pincers device, comprise car safety (11), safety tongs voussoir (12) and shift mechanism (9), it is characterized in that lifting pincers (2) links to each other with shift mechanism (9) by connecting rod (6), voussoir connecting device (3) links to each other with lifting pincers (2), voussoir (4) and lever (7), between lever (7) and the shift mechanism (9) retarding spring (8) is arranged, speed limit steel wire lower end (10) is connected on the lever (7).
2. according to claim 1 described claim, it is characterized in that the distance variable between lifting pincers (2) and the voussoir (4).
3. according to claim 1 described claim, it is characterized in that voussoir connecting device (3) has a work point of transition, before lever (7) jack-up did not highly surpass the work point of transition, voussoir connecting device (3) promoted voussoir (4) away from guide rail (1); After jack-up highly surpassed the work point of transition, voussoir connecting device (3) promoted voussoir (4) and contacts with guide rail (1).
4. according to claim 1 described claim, it is characterized in that the rotating fulcrum of lever (7) is on connecting rod (6).
5. according to claim 1 described claim, it is characterized in that lifting pincers (2) can move up and down with respect to car.
6. according to claim 1 described claim, it is characterized in that there are quick connection and tripping device in two of connecting rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189051.XA CN102862893B (en) | 2011-07-07 | 2011-07-07 | Lifting plier device of elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189051.XA CN102862893B (en) | 2011-07-07 | 2011-07-07 | Lifting plier device of elevator car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102862893A true CN102862893A (en) | 2013-01-09 |
| CN102862893B CN102862893B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110189051.XA Expired - Fee Related CN102862893B (en) | 2011-07-07 | 2011-07-07 | Lifting plier device of elevator car |
Country Status (1)
| Country | Link |
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| CN (1) | CN102862893B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035905A (en) * | 2015-08-21 | 2015-11-11 | 广东德奥电梯科技有限公司 | Hydraulic electronic safety tong system |
| CN107265243A (en) * | 2017-08-08 | 2017-10-20 | 无锡市品电梯配件有限公司 | A kind of constant braking deceleration safety tongs |
| CN107416646A (en) * | 2017-05-04 | 2017-12-01 | 中山天达电梯科技有限公司 | A kind of passageway lift |
| CN108193734A (en) * | 2018-02-23 | 2018-06-22 | 徐州徐工挖掘机械有限公司 | Large excavator access step system |
| CN108358016A (en) * | 2018-04-09 | 2018-08-03 | 中建八局第二建设有限公司 | A kind of construction safety escalator |
| CN109292698A (en) * | 2018-11-15 | 2019-02-01 | 无锡星亿智能环保装备股份有限公司 | A kind of combined type buoyancy braking safety device |
| CN109465652A (en) * | 2018-11-30 | 2019-03-15 | 广东工业大学 | Contact rigidity switching device and the Rigid-flexible Coupled Motion platform and method for using it |
| CN110279245A (en) * | 2019-04-24 | 2019-09-27 | 上海好事可频科技有限公司 | A kind of folding bed |
| CN112279034A (en) * | 2020-10-23 | 2021-01-29 | 晋江华菱电梯有限公司 | Elevator safety tongs |
| CN112678745A (en) * | 2019-08-21 | 2021-04-20 | 科捷智能科技股份有限公司 | Anti-falling braking method for cargo carrying platform |
| CN113772518A (en) * | 2021-09-26 | 2021-12-10 | 杭州天奥电梯有限公司 | Elevator car frame |
| CN114291686A (en) * | 2021-12-29 | 2022-04-08 | 镇江朝阳机电科技有限公司 | Elevator safety braking device |
| CN115258875A (en) * | 2022-07-25 | 2022-11-01 | 苏州德奥电梯有限公司 | Elevator safety gear and using method |
| CN115346428A (en) * | 2022-04-22 | 2022-11-15 | 江苏省特种设备安全监督检验研究院 | Linkage test display device of elevator car and test method thereof |
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| JP2011102165A (en) * | 2009-11-10 | 2011-05-26 | Hitachi Ltd | Emergency stop device for elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU931641A1 (en) * | 1980-03-26 | 1982-05-30 | Государственный Проектно-Конструкторский Институт Технологии Монтажа Промышленного Оборудования "Гипротехмонтаж" | Arrester for load-hoisting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US2555041A (en) * | 1947-04-24 | 1951-05-29 | King Clifford John | Automatic safety device for mine cages |
| DE1215322B (en) * | 1962-08-06 | 1966-04-28 | Hillenkoetter & Ronsieck | Sliding or braking device for elevators |
| CN2302233Y (en) * | 1996-01-22 | 1998-12-30 | 杜立法 | Rope-breakage safety device for person and cargo two-purpose elevator |
| JP2001354373A (en) * | 2000-06-14 | 2001-12-25 | Toshiba Elevator Co Ltd | Emergency stopping device of elevator |
| CN2721587Y (en) * | 2004-07-05 | 2005-08-31 | 彭忠杰 | Automatic drop preventive brake of vertical transporation |
| JP2009263110A (en) * | 2008-04-28 | 2009-11-12 | Mitsubishi Electric Building Techno Service Co Ltd | Safety device for hydraulic elevator |
| CN101875461A (en) * | 2009-04-28 | 2010-11-03 | 株式会社日立制作所 | Brake shoe for elevator emergency stop |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035905B (en) * | 2015-08-21 | 2017-09-15 | 广东德奥电梯科技有限公司 | The safe forceps system of hydraulic electronic |
| CN105035905A (en) * | 2015-08-21 | 2015-11-11 | 广东德奥电梯科技有限公司 | Hydraulic electronic safety tong system |
| CN107416646A (en) * | 2017-05-04 | 2017-12-01 | 中山天达电梯科技有限公司 | A kind of passageway lift |
| CN107265243A (en) * | 2017-08-08 | 2017-10-20 | 无锡市品电梯配件有限公司 | A kind of constant braking deceleration safety tongs |
| CN108193734B (en) * | 2018-02-23 | 2023-04-28 | 徐州徐工挖掘机械有限公司 | Boarding ladder system of large excavator |
| CN108193734A (en) * | 2018-02-23 | 2018-06-22 | 徐州徐工挖掘机械有限公司 | Large excavator access step system |
| CN108358016A (en) * | 2018-04-09 | 2018-08-03 | 中建八局第二建设有限公司 | A kind of construction safety escalator |
| CN108358016B (en) * | 2018-04-09 | 2024-03-08 | 中建八局第二建设有限公司 | Safe elevator is used in construction |
| CN109292698A (en) * | 2018-11-15 | 2019-02-01 | 无锡星亿智能环保装备股份有限公司 | A kind of combined type buoyancy braking safety device |
| CN109465652A (en) * | 2018-11-30 | 2019-03-15 | 广东工业大学 | Contact rigidity switching device and the Rigid-flexible Coupled Motion platform and method for using it |
| CN109465652B (en) * | 2018-11-30 | 2023-09-22 | 广东工业大学 | Contact type rigidity switching device, rigid-flexible coupling motion platform using same and rigid-flexible coupling motion method |
| CN110279245A (en) * | 2019-04-24 | 2019-09-27 | 上海好事可频科技有限公司 | A kind of folding bed |
| CN112678745A (en) * | 2019-08-21 | 2021-04-20 | 科捷智能科技股份有限公司 | Anti-falling braking method for cargo carrying platform |
| CN112279034B (en) * | 2020-10-23 | 2021-12-17 | 晋江华菱电梯有限公司 | Elevator safety tongs |
| CN112279034A (en) * | 2020-10-23 | 2021-01-29 | 晋江华菱电梯有限公司 | Elevator safety tongs |
| CN113772518B (en) * | 2021-09-26 | 2023-04-25 | 杭州天奥电梯有限公司 | Elevator car frame |
| CN113772518A (en) * | 2021-09-26 | 2021-12-10 | 杭州天奥电梯有限公司 | Elevator car frame |
| CN114291686A (en) * | 2021-12-29 | 2022-04-08 | 镇江朝阳机电科技有限公司 | Elevator safety braking device |
| CN115346428A (en) * | 2022-04-22 | 2022-11-15 | 江苏省特种设备安全监督检验研究院 | Linkage test display device of elevator car and test method thereof |
| CN115258875A (en) * | 2022-07-25 | 2022-11-01 | 苏州德奥电梯有限公司 | Elevator safety gear and using method |
Also Published As
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|---|---|
| CN102862893B (en) | 2015-04-08 |
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Granted publication date: 20150408 Termination date: 20190707 |