CN102431860A - Lift falling speed self-attenuation device - Google Patents
Lift falling speed self-attenuation device Download PDFInfo
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- CN102431860A CN102431860A CN2011102637608A CN201110263760A CN102431860A CN 102431860 A CN102431860 A CN 102431860A CN 2011102637608 A CN2011102637608 A CN 2011102637608A CN 201110263760 A CN201110263760 A CN 201110263760A CN 102431860 A CN102431860 A CN 102431860A
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- gas holder
- car
- holder chamber
- load transfer
- lift
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Abstract
The invention provides a lift falling speed self-attenuation device, which comprises an air float chamber which is of an upward-opening cavity structure and formed at the bottom of a lift vertical shaft, and a lift cage lower spherical surface structure which has a downward-opening and is arranged at the bottom of a lift cage, wherein the air float chamber is further provided with more than three energy dissipation devices for dissipating the falling impulse of the lift cage. After the lift falling speed self-attenuation device falls into the air float chamber through the lift cage, resistance to the falling of the lift cage is formed by high air pressure generated by the air float chamber and the lift cage lower spherical surface structure, so that the falling speed of the lift cage is lowered; and simultaneously, the energy dissipation devices arranged in the air float chamber can be used for effectively counteracting the impulse of the lift cage to the ground, so that the lift is prevented from getting out of control, passengers are protected from being injured by the falling lift cage.
Description
Technical field
The present invention relates to a kind of elevator car safety, relate to a kind of lifting mode used during elevator falling speed self damping device in particular.
Technical background
Since over half a century, the fast development of international metropolis, skyscraper continues to bring out, and the lifting mode elevator is used widely because of realizing the quick interchange between the differing heights floor.The lifting mode elevator is to utilize the rising of lift car and decline to accomplish through haulage cable, rather than by means of the thrust of below.Hawser is connected with lift car, and is looped around on the rope sheave.Rope sheave is a notched pulley around.It can tightly be clamped hoist rope, and therefore when the rotation rope sheave, steel rope also can move thereupon.Rope sheave is connected on the electrical motor.When motor during towards the rotation of certain direction, rope sheave rises elevator; When motor rotated to another way, rope sheave then made elevator descend.In gearless elevator, motor directly rotates rope sheave.And in geared elevator, motor rotates rope sheave through rotation drive machine.As a rule, rope sheave, motor and control system are installed in the machine room of elevator top.If fracture appears in rope sheave, elevator will be the movement of falling object in elevator.Research shows, out of control and when dropping voluntarily when elevator, elevator is in case born at full speed during greater than 4m/s for speed per hour, and the bounce that elevator cage is huge will be shaken the internal organ of hurting sb.'s feelings, and can damage shank, vertebra, cervical vertebra simultaneously.Also do not have at present a kind ofly can effectively reduce and even eliminate sudden the falling of lifting mode elevator and cause the calamity potential safety hazard, guarantee that the device of lifting mode elevator life security of resident in the sudden back car that falls comes out.
Summary of the invention
The invention provides a kind of lifting mode used during elevator falling speed self damping device for addressing the above problem, its principle is for car will speed up in access to elevators falls when car is sudden when falling; When car falls entering gas holder chamber; The indoor air of gas holder except that few part between car side wall and access to elevators wall the leakage; Most of air in gas holder chamber, car lower peripheral surface structure and the hemisphere chamber, bottom, gas holder chamber is in compressive state fast; Produce outside air pressure, react on the car lower peripheral surface structure of car bottom, reduce the car speed of falling.The car entering gas holder chamber degree of depth is big more, and air resistance is big more, and the car speed of falling decays fast.Simultaneously, momentum in the time of effectively cushioning the car kiss the earth with energy dissipator also is set on the gas holder chamber.
Lifting mode used during elevator falling speed self damping device, by comprise be arranged on lift well bottom be opening make progress cavity structure gas holder chamber be arranged on the downward car lower peripheral surface structure of car bottom opening and form; Wherein, gas holder chamber also is provided with the energy dissipator that is used to subdue car whereabouts momentum more than 3.
Said gas holder chamber is made up of hemisphere chamber and vertical shaft at the bottom of the gas holder chamber from bottom to up successively; Wherein, the internal diameter horizontal section of vertical shaft and the horizontal section of car external diameter are complementary, and inboard, hemisphere chamber also is provided with the gas holder chamber pressure-bearing step that is complementary with the car spherical structure at the bottom of the gas holder chamber, connect on the pressure-bearing step of gas holder chamber energy dissipator is set.
Said energy dissipator comprises rotation top board connecting panel, steady ring, steel ball tenon, spring, load transfer support, spring guide and load transfer steel plate;
Wherein, The load transfer steel plate is through being bolted on the pressure-bearing step of gas holder chamber, and the steady ring that spring guide passes load transfer steel plate stage casing moves up and down along the axis of load transfer steel plate, is set with spring on the spring guide; The spring lower end is connected on the steady ring; The upper end is connected with the load transfer support that is fixed on the spring guide top, and the top of spring guide connects the steel ball tenon, the nested rotation top board connecting panel that is connected with in the top of steel ball tenon.
Gas holder chamber and car lower peripheral surface structure all can be born the pressure greater than 900MPa.
Useful technique effect of the present invention is: after lifting mode used during elevator falling speed self damping device fell into gas holder chamber through car, the gas high pressure that gas holder chamber and car lower peripheral surface structure form formed resistance, the falling speed of slowing down car to the whereabouts of car; Simultaneously, be arranged on the indoor energy dissipator of gas holder and can also offset car to ground-surface momentum by actv., thereby avoided elevator out of control, car falls to passenger's injury.
Description of drawings
Gas holder chamber 1, hemisphere chamber at the bottom of the 1-1 gas holder chamber, 1-2 vertical shaft, 1-3 escape vent, 2 cars; 2-1 car lower peripheral surface structure, 3 energy dissipators, 3-1 rotation top board connecting panel, 3-2 steady ring, 3-3 steel ball tenon; The 3-4 spring, 3-5 load transfer support, 3-6 spring guide, 3-7 load transfer steel plate;
Fig. 1 lifting mode used during elevator falling speed self damping schematic representation of apparatus;
Fig. 2 car 2 touches the structural representation of energy dissipator;
The partial enlarged drawing of Fig. 3 energy dissipator.
The specific embodiment
Like accompanying drawing 1, a cutting or a prefabricated gas holder chamber 1 shown in 2; 1-1 inboard, hemisphere chamber also is provided with the gas holder chamber pressure-bearing step 1-3 that is complementary with car spherical structure 2-1 at the bottom of the gas holder chamber; Gas holder chamber pressure-bearing step 1-3 goes up to connect energy dissipator 3 is set, and with sidewall position, the cooresponding gas holder of car door chamber escape hatch 1-3 is being set, and escape hatch is in air-tight state before opening and using; The degree of depth of vertical shaft 1-2 is 4m, and the gaseous tension that is not less than 900MPa is born in gas holder chamber 1.Make the car 2 of a cuboid like Fig. 1, shown in 2, car 1 is provided with car lower peripheral surface structure 2-1 structure, and car 2 gets in the gas holder chamber 1, and car 2 is 3～7cm with the spacing of vertical shaft 1-2 wall.
Adding counterweight 2 li of cars makes the total weight of car 2 reach 2000kg.When the speed entering gas holder chamber 1 of car 2 with 15m/s, when car 2 touched energy dissipator, the speed of car had been lowered to 3m/s.
Gas holder chamber 1 is generally at subterranean room excavation, if subterranean room is a rock foundation, smears the mortar that label is not less than M15 after the wall leveling and get final product, if subterranean room is an earthen foundation, need be not less than the ferro-concrete cast in situs of C25 with label.Behind the car 2 impact ground, at the cooresponding vertical shaft 1-1 of the door position with car 2 escape hatch 1-3 is set, escape hatch is in air-tight state before opening and using, and bears the gaseous tension that is not less than 900MPa.
Hemisphere chamber 1-2 is positioned at the rock foundation of 1 bottom, gas holder chamber or by the structure that is not less than the cast in situs of C25 ferro-concrete, can bears the gaseous tension that is not less than 900MPa at the bottom of the gas holder chamber.
Energy dissipator 3 comprises rotation top board connecting panel 3-1, steady ring 3-2, steel ball tenon 3-3, spring 3-4, load transfer support 3-5, spring guide 3-6 and load transfer steel plate 3-7
Like the structural representation of accompanying drawing 3 energy dissipators 3, can know that by figure the structure of energy dissipator is from top to bottom: rotation top board connecting panel 3-1, steady ring 3-2, steel ball tenon 3-3, spring 3-4, load transfer support 3-5, spring guide 3-6 and load transfer steel plate 3-7; Load transfer steel plate 3-7 is the cylindrical structure that is provided with circular orientation ring 3-8 in.
Wherein, Load transfer steel plate 3-7 is through being bolted to gas holder chamber pressure-bearing step 1-3, and the ring 3-8 that is decided to be that spring guide 3-6 passes load transfer steel plate 3-7 stage casing moves up and down along the axis of load transfer steel plate 3-7, is set with spring 3-4 on the spring guide 3-6; Spring 3-4 lower end is connected and is decided to be on the ring 3-8; The upper end is connected with the load transfer support 3-5's that is fixed on spring guide 3-6 top, and the top of spring guide 3-6 connects steel ball tenon 3-3, and steel ball tenon 3-3 is fixed on the below of rotation top connecting panel 3-1.
Claims (4)
1. lifting mode used during elevator falling speed self damping device is characterized in that: comprise be arranged on the lift well bottom opening make progress cavity structure gas holder chamber (1) and be arranged on the downward car lower peripheral surface structure (2-1) of car (2) bottom opening; Wherein, gas holder chamber (1) also is provided with the energy dissipator (3) that is used to subdue car (2) whereabouts momentum more than 3.
2. lifting mode used during elevator falling speed self damping device according to claim 1 is characterized in that: said gas holder chamber (1) is made up of hemisphere chamber (1-1) at the bottom of the gas holder chamber and vertical shaft (1-2) from bottom to up successively; Wherein, The horizontal section of the internal diameter horizontal section of vertical shaft (1-2) and car (2) external diameter is complementary; Inboard, hemisphere chamber (1-1) also is provided with the gas holder chamber pressure-bearing step (1-3) that is complementary with car spherical structure (2-1) at the bottom of the gas holder chamber, and gas holder chamber pressure-bearing step (1-3) is gone up to connect energy dissipator (3) is set.
3. according to one of claim 1 or 2 described lifting mode used during elevator falling speed self damping device, it is characterized in that: said energy dissipator (3) comprises rotation top board connecting panel (3-1), steady ring (3-2), steel ball tenon (3-3), spring (3-4), load transfer support (3-5), spring guide (3-6) and load transfer steel plate (3-7);
Wherein, Load transfer steel plate (3-7) is through being bolted on the gas holder chamber pressure-bearing step (1-3); The steady ring (3-2) that spring guide (3-6) passes load transfer steel plate (3-7) stage casing moves up and down along the axis of load transfer steel plate (3-7); Be set with spring (3-4) on the spring guide (3-6), spring (3-4) lower end is connected on the steady ring (3-2), and the upper end is connected with load transfer support (3-5's) that be fixed on spring guide (3-6) top; The top of spring guide (3-6) connects steel ball tenon (3-3), the nested rotation top board connecting panel (3-1) that is connected with in the top of steel ball tenon (3-3).
4. according to one of claim 1 or 2 described lifting mode used during elevator falling speed self damping device, it is characterized in that: the pressure greater than 900MPa all can be born with car lower peripheral surface structure (2-1) in gas holder chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102637608A CN102431860B (en) | 2011-09-07 | 2011-09-07 | Lift falling speed self-attenuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102637608A CN102431860B (en) | 2011-09-07 | 2011-09-07 | Lift falling speed self-attenuation device |
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| Publication Number | Publication Date |
|---|---|
| CN102431860A true CN102431860A (en) | 2012-05-02 |
| CN102431860B CN102431860B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102637608A Active CN102431860B (en) | 2011-09-07 | 2011-09-07 | Lift falling speed self-attenuation device |
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| CN (1) | CN102431860B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121612A (en) * | 2013-03-15 | 2013-05-29 | 江苏科技大学 | Elevator lift car safety landing device based on air energy dissipation |
| CN105883537A (en) * | 2016-06-03 | 2016-08-24 | 福建农林大学 | Elevator safety protection device |
| CN111762656A (en) * | 2020-05-19 | 2020-10-13 | 大连保税区华鸿工业技术有限公司 | Emergency braking system for elevator car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527269U (en) * | 1978-08-11 | 1980-02-21 | ||
| CN2255969Y (en) * | 1995-08-28 | 1997-06-11 | 李天民 | Shocking absorber of elevator |
| JP2001026384A (en) * | 1999-07-16 | 2001-01-30 | Ishikawajima Harima Heavy Ind Co Ltd | Pneumatic elevator |
| KR20090019888A (en) * | 2009-02-05 | 2009-02-25 | 국 주 이 | Reduce device by air absorber force of elevator drop impact |
| CN102107806A (en) * | 2009-12-25 | 2011-06-29 | 上海奇谋能源技术开发有限公司 | Protecting method for mounting propeller on elevator |
-
2011
- 2011-09-07 CN CN2011102637608A patent/CN102431860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527269U (en) * | 1978-08-11 | 1980-02-21 | ||
| CN2255969Y (en) * | 1995-08-28 | 1997-06-11 | 李天民 | Shocking absorber of elevator |
| JP2001026384A (en) * | 1999-07-16 | 2001-01-30 | Ishikawajima Harima Heavy Ind Co Ltd | Pneumatic elevator |
| KR20090019888A (en) * | 2009-02-05 | 2009-02-25 | 국 주 이 | Reduce device by air absorber force of elevator drop impact |
| CN102107806A (en) * | 2009-12-25 | 2011-06-29 | 上海奇谋能源技术开发有限公司 | Protecting method for mounting propeller on elevator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121612A (en) * | 2013-03-15 | 2013-05-29 | 江苏科技大学 | Elevator lift car safety landing device based on air energy dissipation |
| CN103121612B (en) * | 2013-03-15 | 2015-05-13 | 江苏科技大学 | Elevator lift car safety landing device based on air energy dissipation |
| CN105883537A (en) * | 2016-06-03 | 2016-08-24 | 福建农林大学 | Elevator safety protection device |
| CN111762656A (en) * | 2020-05-19 | 2020-10-13 | 大连保税区华鸿工业技术有限公司 | Emergency braking system for elevator car |
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| CN102431860B (en) | 2013-12-04 |
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