CN105923500A - Elevator safety device - Google Patents

Elevator safety device Download PDF

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Publication number
CN105923500A
CN105923500A CN201610534699.9A CN201610534699A CN105923500A CN 105923500 A CN105923500 A CN 105923500A CN 201610534699 A CN201610534699 A CN 201610534699A CN 105923500 A CN105923500 A CN 105923500A
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CN
China
Prior art keywords
elevator
bracket
car
pressure pin
safety
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Application number
CN201610534699.9A
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Chinese (zh)
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CN105923500B (en
Inventor
孙广斌
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孙广斌
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Priority to CN201610534699.9A priority Critical patent/CN105923500B/en
Publication of CN105923500A publication Critical patent/CN105923500A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/26Positively-acting devices, e.g. latches, knives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/28Buffer-stops for cars, cages, or skips
    • B66B5/282Structure thereof

Abstract

The invention discloses an elevator safety device. The elevator safety device comprises a car, and a traction and control system, wherein safety brackets and retraction devices are arranged on the sidewall of an elevator well. The elevator safety device is characterized in that each safety bracket comprises a bracket seat fixed on the sidewall of the elevator well, and a bracket rod movably connected with the bracket seat through a pin shaft and capable of freely rotating relative to the bracket seat; and each bracket rod is capable of freely rotating in an angle alpha of less than 90 degrees relative to the corresponding bracket seat under the actions of a stop block and a limit table in the corresponding bracket seat. The device realizes purely mechanical braking during falling-off of the car at an abnormal speed, in particular, at an extreme speed, without the participation of any electronic component, thus the phenomenon of failure of emergency braking due to failure of electronic equipment, and the like, is prevented; the safety device is controlled by virtue of a normal power supply device or electronic equipment during normal running of the car, the normal falling-off of the car is not hindered, the traditional state of detecting, carrying out emergency braking and the like by the aid of electronic equipment is changed, the reliability is 100%, and the device can be applied to various vertical elevators.

Description

A kind of elevator car safety
Technical field
Patent of the present invention relates to elevator safety technical field, a kind of safety anti-falling device for car type vertical lift.
Background technology
Along with China's economic construction develop rapidly, urbanization process accelerate, elevator has become requisite vertical transport equipment in skyscraper.According to statistics, the elevator purchasing scope of China is constantly in higher growth level, and increasing degree is about 30%.By the end of the year 2013, China's elevator recoverable amount, more than 3,000,000, becomes genuine production and marketing and recoverable amount the first big country.While elevator industry is thriving at home, the elevator faults event that various places occur repeatedly but becomes the public, media spotlight.Elevator faults, the most then cause building elevator to stop transport paralysis, the event such as oppressive, then can cause great personal injury, property loss time serious.Show according to the data of State General Administration for Quality Supervision's circular, within 2011, elevator accident 57 occurs, accounts for the 21% of all special equipment accidents.All kinds of elevators frequency that has an accident is high, often can cause the end of rushing to summit or squat the most serious this kind of accident after wherein control system is malfunctioning.
Elevator is mainly made up of the car being located in elevator, car balance weight, steel wire rope, motor, reduction box, reel, brakes, control system etc..At present, skyscraper gets more and more, elevator also thus more and more universal, at present, the existing safety device overwhelming majority preventing used during elevator falling have employed electronic component, easily cause maloperation, erroneous judgement, and also limit service life, especially having a power failure suddenly during elevator is currently running, electronic component just can not play a role, easily fall because of out of hand, not only cause article to damage, the most easily cause the generation of human casualty accident, cause extreme loss to the production of daily life and enterprises and institutions.And, when lift circuit goes wrong, it is impossible to prevent elevator from falling suddenly, be there is the biggest hidden danger in the personal safety as well as the property safety of user.Current Lift car type elevator is designed with emergency braking apparatus, safety failure is occurring, during such as elevator speed exception, is generally producing braking by brake shoe gripping elevator guide rails, but when cage guide ruptures or other fault occurs, emergency braking apparatus can fail to work;When car is in higher floor, the safety of passenger cannot be guaranteed.
Summary of the invention
For the problems of the prior art, the invention aims to provide a kind of elevator car safety, this device is simple mechanical structure form, it is arranged on elevator sidewall, can effectively prevent elevator normal speed from declining, when elevator normal speed declines, this device is sustainable, urgent stop elevator car, ensures the personal safety and safety of property in car.
In order to achieve the above object, the technical scheme is that
A kind of elevator car safety, including the car being arranged in elevator and the trailer system of car and control system, also include the retracting device of the safe support and safe support that are positioned on elevator sidewall, it is characterized in that: described safe support includes being fixed on the bracket on elevator sidewall and being flexibly connected with bracket by bearing pin, and can bracket rotates freely relatively pressure pin, wherein, bracket includes fixing seat and the bracket head with fixing seat integral type, described bracket cephalic par is provided with pressure pin groove, the outer section of pressure pin trench bottom is limiting stand, inner segment is dead slot, the pin shaft hole of connection supporting rod it is provided with on pressure pin groove sidewall, pressure pin groove the inner is provided with the gear block extended toward limiting stand direction, under gear block and limiting stand effect, pressure pin can rotate freely by bracket relatively in the α angle less than 90 °.
Further, described retracting device includes motor and chain, also includes control device and the electric supply installation of this motor, and the free end of the pressure pin being arranged in bracket is connected on motor by chain.
Further, described fixing seat is inlayed and is fixed on elevator sidewall.
Further, this device also includes the velocity sensor being arranged on car and the position sensor being arranged on elevator sidewall.
Further, described elevator medial wall is provided with safe support with every floor layer corresponding position, and the quantity of every layer of safe support is two or more.
Compared with prior art, the structure of the elevator car safety that the present invention provides is unusual, the arrangement achieves car normal speed, Purely mechanical braking during the most very fast decline, participate in without any electronic component, prevent the generation of the phenomenon causing brake hard the most malfunctioning because electronic equipment is malfunctioning etc., and when car is properly functioning, normal electric supply installation or electronic equipment is relied on to control this safety device, do not hinder the regular descent of car, change traditional electronic equipment that needs to detect, the states such as brake hard, reliability is absolutely, can apply on various vertical lifts, this apparatus structure is simple, remarkably productive, install simple, service life is long, low cost, can wide popularization and application.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Accompanying drawing 1 is the structural representation that safety device is applied on elevator;
Accompanying drawing 2 is the safe support structural representation of this safety device;
Accompanying drawing 3 is bracket structural representation in safe support;
Accompanying drawing 4 is status architecture schematic diagram when bracket and pressure pin coaxial line in safe support;
Accompanying drawing 5 is status architecture schematic diagram when bracket and pressure pin angle maximum in safe support;
Accompanying drawing 6 is the sectional view of accompanying drawing 5.
Detailed description of the invention
With embodiment, the present invention is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ 6, a kind of elevator car safety, original lift appliance includes the car 7 that is arranged in elevator 8 and the trailer system of car 7 and control system, this device is the safe support 6 on elevator 8 sidewall in original lift appliance and the retracting device of safe support 6, the car 7 that normal speed declines can be intercepted and holds by this safe support 6, prevent car 7 from rapidly declining, cause casualties and property loss.
nullAs shown in Figure 2,Safe support 6 in this device includes being fixed on the bracket 3 on elevator 8 sidewall and being flexibly connected with bracket 3 by bearing pin 5、And can bracket 3 rotates freely relatively pressure pin 4,Pressure pin 4 is in the pressure pin groove 32 of bracket 3 when naturally hanging,And with bracket 3 coaxial line,Wherein,Can be seen that from accompanying drawing 3,Bracket 3 includes fixing seat 31 and the bracket head with fixing seat 31 integral type,Fixing seat 31 is inlayed and is fixed on elevator 8 sidewall,Described bracket cephalic par is provided with pressure pin groove 32,Bottom pressure pin groove 32, outer section is limiting stand 36,This limiting stand 36 hangs the pressure pin 4 of state for supporting nature,And make pressure pin 4 be in level,Bracket head inner segment is dead slot 35,The effect of this dead slot 35 structure is when pressure pin 4 rotates relative to bracket 3,Do not hinder the rotation of pressure pin 4 tail end,It is provided with the pin shaft hole 34 of connection supporting rod 4 on pressure pin groove 32 sidewall simultaneously,Pressure pin groove 32 the inner is provided with the gear block 33 extended toward limiting stand 36 direction,Under gear block 33 and limiting stand 36 act on,Pressure pin 4 can rotate freely by bracket 3 relatively in the α angle less than 90 °.The free end of the pressure pin 4 being arranged in bracket 3 is connected on motor 1 by chain 2, motor 1 is arranged on elevator 8 inwall, also include control device and the electric supply installation of this motor, under in retracting device, motor 1 and chain 2 act on, the pressure pin 4 being in level can be pulled up, the angle of pull-up is α (acute angles less than 90 degree), when chain 2 is in nature vertical pine state, owing to the angle of pressure pin 4 with horizontal plane is less than 90 degree, pressure pin 4 hangs the most naturally, and falls in pressure pin groove 32, support, be in level for limited 36.The velocity sensor being provided with on car 7, for sensing the speed of car 7, elevator 8 sidewall is provided with position sensor, for sensing the car 7 position in elevator 8.
It addition, can be respectively provided with safe support 6 with every floor layer corresponding position on elevator 8 medial wall, and the quantity of every layer of safe support 6 is two or more, to guarantee every layer of effect that can act as safe anti-falling.
Its application principle is explained as follows:
Under normal condition, motor 1 does not works, pressure pin 4 is in level, and is not free state by External Force Acting, is also the state not being pulled up, when car 7 runs from the bottom up, pressure pin 4 can be boosted by car 7 top automatically, pressure pin 4 free end by jack-up, pressure pin 4 with bearing pin 5 for the center of circle toward top, rotate by the direction of elevator 8 inwall, until being pushed up the maximum anglec of rotation by car 7, do not affect the normal rising of car 7;nullWhen car 7 runs from top to bottom,Velocity sensor and position sensor detect its speed of service and run location,Under normal decline speed,When car 7 runs at safe support 6,Its positional information is passed to motor 1 by position sensor,Motor 1 starts,And by chain 2 by pressure pin 4 pull-up in safe support 6 close for car 7,Do not affect the normal decline of car 7,When car 7 is after safe support 6,Motor 1 inverts,Chain 2 unclamps,Pressure pin 4 in safe support 6 is put down,This is due under gear block 33 effect,Pressure pin 4 will not be perpendicular to bracket 3,Pressure pin 4 is acute angle with the angle of horizontal plane,Under himself action of gravity,Pressure pin 4 natural rotation falls,And fall in pressure pin groove 32,Limited 36 torr,It is the level of state,Under improper decrease speed,Velocity information will not be passed to motor 1 by velocity sensor,Motor 1 will not work,Pressure pin 4 is still in level,When car 7 is fallen at safe support 6,Car 7 will be held up by the pressure pin 4 being in level,Prevent or slow down the further decline of car 7,Safe support 6 can also be set in the elevator 3 of every layer,Even if it is the biggest that car 7 declines impulse force,The safe support 6 of one layer blocks incessantly or holds in the palm incessantly,The safe support 6 of multilamellar can also carry out multilamellar buffering,Until car is held,It is made to stop declining.nullIt should be noted that herein,Even if the draught line drop on car 7,Or control system is malfunctioning,Or without electricity、Emergency braking apparatus fails、The safety device preventing used during elevator falling is malfunctioning,This safety device is the most effective,Do not lost efficacy by power system、Do not has the impact of the states such as electricity,This is because,Pressure pin 4 is in level in normal state,And when elevator normal speed declines,The electric power system also illustrating that elevator is also normal,Motor 1 also can normally work,Realize the pull-up pressure pin 4 when car 7 runs at safe support 6,Do not affect car 7 normal decline,When electric power system is abnormal or under normal condition, car 7 normal speed declines,Motor 1 does not works,Pressure pin 4 is in level all the time,Realize entirely mechanical under abnormal condition and intercept car 7,Do not limited by electric power system or control system,Purely mechanical is braked,Reliability is absolutely.
It is understandable that, above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to the technical scheme described by the embodiment of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent, to reach identical technique effect;Needs are used, all within protection scope of the present invention as long as meeting.

Claims (5)

  1. null1. an elevator car safety,Including the car (7) being arranged in elevator (8) and the trailer system of car (7) and control system,Also include safe support (6) and the retracting device of safe support (6) being positioned on elevator (8) sidewall,It is characterized in that: described safe support (6) is included the bracket (3) being fixed on elevator (8) sidewall and is flexibly connected with bracket (3) by bearing pin (5)、And can bracket (3) rotates freely relatively pressure pin (4),Wherein,Bracket (3) includes fixing seat (31) and the bracket head with fixing seat (31) integral type,Described bracket cephalic par is provided with pressure pin groove (32),The outer section in pressure pin groove (32) bottom is limiting stand (36),Inner segment is dead slot (35),The pin shaft hole (34) of connection supporting rod (4) it is provided with on pressure pin groove (32) sidewall,Pressure pin groove (32) the inner is provided with the gear block (33) extended toward limiting stand (36) direction,Under gear block (33) and limiting stand (36) act on,Pressure pin (4) can rotate freely by bracket (3) relatively in the α angle less than 90 °.
  2. A kind of elevator car safety the most according to claim 1, it is characterized in that: described retracting device includes motor (1) and chain (2), also including control device and the electric supply installation of this motor, the free end of the pressure pin (4) being arranged in bracket (3) is connected on motor (1) by chain (2).
  3. A kind of elevator car safety the most according to claim 1, it is characterised in that: described fixing seat (3) (1) is inlayed and is fixed on elevator (8) sidewall.
  4. A kind of elevator car safety the most according to claim 1, it is characterised in that: this device also includes the velocity sensor being arranged on car (7) and the position sensor being arranged on elevator (8) sidewall.
  5. A kind of elevator car safety the most according to claim 1, it is characterised in that: it is provided with safe support (6) with every floor layer corresponding position on described elevator (8) medial wall, and the quantity of every layer of safe support (6) is two or more.
CN201610534699.9A 2016-07-08 2016-07-08 A kind of elevator car safety Active CN105923500B (en)

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Application Number Priority Date Filing Date Title
CN201610534699.9A CN105923500B (en) 2016-07-08 2016-07-08 A kind of elevator car safety

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN105923500B CN105923500B (en) 2018-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106494964A (en) * 2016-12-30 2017-03-15 苏州沃诺斯精密机械有限公司 A kind of elevator band type brake apparatus
CN110921454A (en) * 2019-11-21 2020-03-27 陕西威斯特高新技术投资有限公司 Control method and device for building automatic elevator

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0597344A (en) * 1991-10-08 1993-04-20 Mitsubishi Electric Corp Safety device for ropeless linear motor elevator
US6273216B1 (en) * 1998-09-28 2001-08-14 Inventio Ag Emergency release device
CN201068362Y (en) * 2007-07-31 2008-06-04 李朝伟 Elastic anti-shocking beam and buffering pot-holding device
CN103101824A (en) * 2012-12-12 2013-05-15 苏州蓝王机床工具科技有限公司 Anti-falling and buffering cage supporter
CN203345873U (en) * 2013-06-20 2013-12-18 四川长虹电器股份有限公司 Anti-falling elevator device
CN105129569A (en) * 2015-08-06 2015-12-09 孔幼娟 Elevator system having anti-falling safeguard function
CN205204545U (en) * 2015-09-30 2016-05-04 中国计量学院 Stop elevator of tenesmus and accident of rushing to summit
CN205472092U (en) * 2016-04-12 2016-08-17 王旭松 Anti -falling protective device for elevator
CN205772615U (en) * 2016-07-08 2016-12-07 孙广斌 A kind of elevator car safety
CN107055254A (en) * 2017-04-27 2017-08-18 左震宇 The emergent protection arrester wires of cabin elevator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0597344A (en) * 1991-10-08 1993-04-20 Mitsubishi Electric Corp Safety device for ropeless linear motor elevator
US6273216B1 (en) * 1998-09-28 2001-08-14 Inventio Ag Emergency release device
CN201068362Y (en) * 2007-07-31 2008-06-04 李朝伟 Elastic anti-shocking beam and buffering pot-holding device
CN103101824A (en) * 2012-12-12 2013-05-15 苏州蓝王机床工具科技有限公司 Anti-falling and buffering cage supporter
CN203345873U (en) * 2013-06-20 2013-12-18 四川长虹电器股份有限公司 Anti-falling elevator device
CN105129569A (en) * 2015-08-06 2015-12-09 孔幼娟 Elevator system having anti-falling safeguard function
CN205204545U (en) * 2015-09-30 2016-05-04 中国计量学院 Stop elevator of tenesmus and accident of rushing to summit
CN205472092U (en) * 2016-04-12 2016-08-17 王旭松 Anti -falling protective device for elevator
CN205772615U (en) * 2016-07-08 2016-12-07 孙广斌 A kind of elevator car safety
CN107055254A (en) * 2017-04-27 2017-08-18 左震宇 The emergent protection arrester wires of cabin elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106494964A (en) * 2016-12-30 2017-03-15 苏州沃诺斯精密机械有限公司 A kind of elevator band type brake apparatus
CN110921454A (en) * 2019-11-21 2020-03-27 陕西威斯特高新技术投资有限公司 Control method and device for building automatic elevator

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