WO2020006872A1 - 一种电梯的防坠落保护装置 - Google Patents

一种电梯的防坠落保护装置 Download PDF

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Publication number
WO2020006872A1
WO2020006872A1 PCT/CN2018/105928 CN2018105928W WO2020006872A1 WO 2020006872 A1 WO2020006872 A1 WO 2020006872A1 CN 2018105928 W CN2018105928 W CN 2018105928W WO 2020006872 A1 WO2020006872 A1 WO 2020006872A1
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Prior art keywords
car
buffer
elevator
elevator shaft
lift car
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PCT/CN2018/105928
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English (en)
French (fr)
Inventor
王应
刘开双
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苏州福特美福电梯有限公司
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Publication of WO2020006872A1 publication Critical patent/WO2020006872A1/zh

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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
    • 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
    • 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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B66B5/282—Structure thereof

Definitions

  • the invention relates to the technical field of elevator anti-fall protection devices, in particular to an elevator anti-fall protection device.
  • elevators are vertical elevators powered by electric motors. They are equipped with box-shaped pods for passengers or goods in multi-storey buildings. In recent years, casualties caused by elevator failures have occurred frequently, causing people In the failure of the elevator, the consequences of an elevator fall accident caused by the breaking of the lifting rope are the most serious. Such accidents often cause severe injuries, injuries and deaths to the people in the elevator.
  • elevators on the market rise and descend The shaking is too large, and there is only one lifting device. When the device is damaged, no other device is replaced, and accidents often occur.
  • An object of the present invention is to provide an anti-fall protection device for an elevator, so as to solve the problems raised in the background art described above.
  • the present invention provides the following technical solutions:
  • An anti-fall protection device for an elevator includes an elevator shaft, a car is arranged in the elevator shaft, traction wheels are arranged above the elevator shaft, and first and second sides of the traction pulley above the elevator shaft are respectively provided with first limits Speed limiter and second speed limiter, the upper end of the car is connected to one end of a traction rope, and the other end of the traction rope bypasses the speed limiter wheel, the traction wheel and the second speed limit of the first speed limiter, respectively
  • the speed limiter wheels of the gearbox are connected with counterweights.
  • the counterweights are arranged on the front side of the car in the elevator shaft.
  • the left and right sides of the car are provided with guide rails, and the car is slidably connected with the guide rails. Settings.
  • a plurality of rings are provided on the top surface of the car, and beams are provided on the left and right sides above the elevator shaft, and a safety rope is connected between the beams and the rings.
  • the length of the safety rope is equal to the height of the elevator shaft.
  • a bottom plate is provided in the car, and a plurality of first buffer springs are connected between the bottom plate and a bottom wall in the car.
  • a plurality of buffer blocks are provided below the car, and a buffer is provided in the inside.
  • Cavity a plurality of struts are arranged between the bottom end surface of the car and the buffer block, the upper end of the strut is fixedly connected to the bottom end surface of the car, and the lower end of the strut extends into the buffer cavity and is connected with a fixed block,
  • a second buffer spring is connected between the bottom side wall in the buffer cavity and the fixed block.
  • a third buffer spring is provided on the outer surface of the support rod between the upper end surface of the buffer block and the bottom end surface of the car. The end faces are fixedly connected to the bottom end face of the car and the upper end face of the buffer block, respectively, and a buffer plate is fixedly connected to the lower end of the buffer block.
  • a polyurethane buffer is disposed on the bottom end surface of the elevator shaft corresponding to the car and the counterweight.
  • the present invention has the beneficial effect that the car in the present invention is an elevator box.
  • the runners of the first speed limiter and the second speed limiter above the elevator shaft are: The speed is too fast to change the centrifugal force to stop the rotation. At the same time, it will also disconnect the elevator's electrical circuit and stop the traction wheel. At this time, the speed limiter stops rotating, which will have a braking effect on the fall of the car. There is a safety rope in the elevator shaft.
  • the length of the safety rope is consistent with the height of the elevator shaft, so when the car falls down, the safety rope will be tightened to ensure that the car will not hit the ground; a first buffer spring is provided in the car, and a first The two buffer springs and the third buffer spring, so when the car falls, the three-layer buffer spring at the bottom will absorb the force of the fall; the car in the elevator shaft and the counterweight block are equipped with polyurethane buffers, which can effectively buffer the falling car Therefore, the present invention decelerates and cushions the falling elevator from the aspects of bottom buffer and upper power traction, and has a simple structure, safety and reliability.
  • 1 is a schematic structural side view of an elevator shaft with an anti-fall protection device for the elevator;
  • FIG. 2 is a schematic structural view of a front view of an elevator shaft with an anti-fall protection device for the elevator;
  • FIG. 3 is a schematic structural diagram of a car of an anti-fall protection device for an elevator.
  • an anti-fall protection device for an elevator which includes an elevator shaft 4 in which a car 2 is disposed, and a hoist is provided above the elevator shaft 4
  • a sheave 6, a first speed limiter 5 and a second speed limiter 21 are respectively provided on the left and right sides of the traction sheave 6 above the elevator shaft 4, and the upper end of the car 2 is connected to one end of a traction rope 7,
  • the other end of the traction rope 7 bypasses the speed governor wheel of the first speed governor 5, the traction sheave 6 and the speed governor wheel of the second speed governor 21 and is connected with a counterweight 9.
  • the counterweight 9 9 is provided on the front side of the car 2 in the elevator shaft 4, the car 2 is provided with guide rails 8 on the left and right sides, and the front side, and the car 2 is provided in sliding connection with the guide rail 8.
  • a plurality of suspension rings 3 are provided on the top surface of the car 2, and cross beams 12 are provided on the left and right sides above the elevator shaft 4.
  • a safety rope 11 is connected between the cross beams 12 and the suspension rings 3.
  • the length of the safety rope 11 is equal to the height of the elevator shaft 4.
  • a bottom plate 13 is provided in the car 2, and a plurality of first buffer springs 14 are connected between the bottom plate 13 and a bottom wall in the car 2.
  • a plurality of buffer blocks 22 are provided below the car 2.
  • a buffer cavity 17 is provided therein, and a plurality of supporting rods 16 are provided between the bottom end surface of the car 2 and the buffer block 22.
  • a fixed block 18 is connected to the buffer cavity 17, and a second buffer spring 19 is connected between the bottom wall of the buffer cavity 17 and the fixed block 18. The upper end surface of the buffer block 22 and the bottom end surface of the car 2 are connected.
  • a third buffer spring 15 is provided on the outer surface of the support rod 16, and the upper and lower end surfaces of the third buffer spring 15 are fixedly connected to the bottom end surface of the car 2 and the upper end surface of the buffer block 22, and a buffer plate is fixedly connected to the lower end of the buffer block 22. 20.
  • Polyurethane buffers 1 are provided on the bottom surface of the elevator shaft 4 at the bottom of the car 2 corresponding to the counterweight 9.
  • the working principle of the present invention is: In the present invention, when the car 2 accidentally falls, the runners of the first speed limiter 5 and the second speed limiter 21 above the elevator shaft 4 change the centrifugal force due to the excessively fast rotation speed and stop rotating at the same time. It will also disconnect the elevator's electrical circuit and stop the traction sheave 6 from rotating. At this time, the speed limiter stops rotating, which will have a braking effect on the fall of the car 2.
  • the elevator rope 4 is provided with a safety rope 11 and the length of the safety rope 11 Keep the same height with the elevator shaft 4, so when the car 2 falls, the safety rope 11 will be tightened to ensure that the car 2 will not hit the ground;
  • the car 2 is provided with a first buffer spring 14 and the bottom of the car 2
  • the second buffer spring 19 and the third buffer spring 15 are provided, so when the car 2 falls, the three-layer buffer spring at the bottom will absorb the falling force; the car 2 and the counterweight 9 in the elevator shaft 4 are provided below the corresponding ones.
  • Polyurethane buffer 1 can effectively cushion the falling car 2.

Abstract

一种电梯的防坠落保护装置，当轿厢（2）意外坠落时，电梯井（4）上方第一限速器（5）和第二限速器（21）的转轮因为转速过快改变离心力从而停止转动，这时限速器停止转动，从而对轿厢（2）坠落产生制动作用；电梯井（4）内设置有安全绳（11），安全绳（11）的长度与电梯井（4）高度保持一致，所以当轿厢（2）坠落时，安全绳（11）会保证轿厢（2）不会与地面撞击；轿厢（2）内设置有第一缓冲弹簧（14），轿厢（2）底部设置有第二缓冲弹簧（19）和第三缓冲弹簧（15），所以当轿厢（2）坠落后，底部的三层缓冲弹簧会吸收坠落的力；电梯井（4）内轿厢（2）和对重块（9）对应下方设置有聚氨酯缓冲器（1），能够有效缓冲坠落的轿厢（2），从底部缓冲和上方动力牵引方面对坠落的电梯进行减速缓冲，结构简单，安全可靠。

Description

一种电梯的防坠落保护装置 技术领域
本发明涉及电梯防坠落保护装置技术领域，具体为一种电梯的防坠落保护装置。
背景技术
目前，电梯是一种以电动机为动力的垂直升降机，装有箱状吊舱，用于多层建筑乘人或载运货物，近年来，因电梯故障而引发的人员伤亡事故时有发生，引起人们的重视，在电梯故障中，升降钢索断裂而引发的电梯坠落事故的后果是最为严重的，此类事故往往会造成电梯内人员的重伤伤残和死亡，目前市场上的电梯上升和下降时晃动过大，升降装置只有一个，当装置损坏时，无其他装置替换，事故时常发生。
因此，需要一种高效稳定的电梯坠落保护装置，避免灾难的发生。
发明内容
本发明的目的在于提供一种电梯的防坠落保护装置，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种电梯的防坠落保护装置，包括电梯井，所述电梯井内设置有轿厢，所述电梯井上方设置有曳引轮，所述电梯井上方曳引轮左右两侧分别设置有第一限速器和第二限速器，所述轿厢上端面连接曳引绳一端，所述曳引绳另一端分别绕过第一限速器的限速器轮、曳引轮以 及第二限速器的限速器轮并连接有对重块，所述对重块在电梯井内轿厢前侧设置，所述轿厢左右两侧以及前侧均设置有导轨，所述轿厢与导轨滑动连接设置。
优选的，所述轿厢顶端面设置有若干吊环，所述电梯井上方左右两侧设置有横梁，所述横梁与吊环之间连接有安全绳。
优选的，所述安全绳长度等同于电梯井高度。
优选的，所述轿厢内设置有底板，所述底板与轿厢内底部侧壁之间连接设置有若干第一缓冲弹簧，所述轿厢下方设置有若干缓冲块，所述内设置有缓冲腔，所述轿厢底端面与缓冲块之间设置有若干支杆，所述支杆上端与轿厢底端面固定连接设置，所述支杆下端伸入缓冲腔内连接有固定块，所述缓冲腔内底部侧壁与固定块之间连接有第二缓冲弹簧，所述缓冲块上端面与轿厢底端面之间的支杆外表面设置有第三缓冲弹簧，所述第三缓冲弹簧上下端面分别与轿厢底端面以及缓冲块上端面固定连接设置，所述缓冲块下端固定连接有缓冲板。
优选的，所述电梯井内底部端面上轿厢与对重块对应下方均设置有聚氨酯缓冲器。
与现有技术相比，本发明的有益效果是：本发明中的轿厢即为电梯箱，当轿厢意外坠落时，电梯井上方第一限速器和第二限速器的转轮因为转速过快改变离心力从而停止转动，同时也会断开电梯的电气回路并停止曳引轮转动，这时限速器停止转动，从而对轿厢坠落产生制动作用；电梯井内设置有安全绳，安全绳的长度与电梯井高度保持一致，所以当轿厢坠落坠落时，安全绳会拉紧，保证轿厢不会与地面 撞击；轿厢内设置有第一缓冲弹簧，轿厢底部设置有第二缓冲弹簧和第三缓冲弹簧，所以当轿厢坠落后，底部的三层缓冲弹簧会吸收坠落的力；电梯井内轿厢和对重块对应下方设置有聚氨酯缓冲器，能够有效缓冲坠落的轿厢，因此，本发明从底部缓冲和上方动力牵引方面对坠落的电梯进行减速缓冲，结构简单，安全可靠。
附图说明
图1为一种电梯的防坠落保护装置的电梯井侧视图结构示意图；
图2为一种电梯的防坠落保护装置的电梯井主视图结构示意图；
图3为一种电梯的防坠落保护装置的轿厢结构示意图。
图中：1-聚氨酯缓冲器，2-轿厢，3-吊耳，4-电梯井，5-第一限速器，6-曳引轮，7-曳引绳，8-导轨，9-对重块，11-安全绳，12-横梁，13-底板，14-第一缓冲弹簧，15-第三缓冲弹簧，16-支杆，17-缓冲腔，18-固定块，19-第二缓冲弹簧，20-缓冲板，21-第二限速器，22-缓冲块。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1～3，本发明提供一种技术方案：一种电梯的防坠落保护装置，包括电梯井4，所述电梯井4内设置有轿厢2，所述电梯 井4上方设置有曳引轮6，所述电梯井4上方曳引轮6左右两侧分别设置有第一限速器5和第二限速器21，所述轿厢2上端面连接曳引绳7一端，所述曳引绳7另一端分别绕过第一限速器5的限速器轮、曳引轮6以及第二限速器21的限速器轮并连接有对重块9，所述对重块9在电梯井4内轿厢2前侧设置，所述轿厢2左右两侧以及前侧均设置有导轨8，所述轿厢2与导轨8滑动连接设置。
所述轿厢2顶端面设置有若干吊环3，所述电梯井4上方左右两侧设置有横梁12，所述横梁12与吊环3之间连接有安全绳11。
所述安全绳11长度等同于电梯井4高度。
所述轿厢2内设置有底板13，所述底板13与轿厢2内底部侧壁之间连接设置有若干第一缓冲弹簧14，所述轿厢2下方设置有若干缓冲块22，所述内设置有缓冲腔17，所述轿厢2底端面与缓冲块22之间设置有若干支杆16，所述支杆16上端与轿厢2底端面固定连接设置，所述支杆16下端伸入缓冲腔17内连接有固定块18，所述缓冲腔17内底部侧壁与固定块18之间连接有第二缓冲弹簧19，所述缓冲块22上端面与轿厢2底端面之间的支杆16外表面设置有第三缓冲弹簧15，所述第三缓冲弹簧15上下端面分别与轿厢2底端面以及缓冲块22上端面固定连接设置，所述缓冲块22下端固定连接有缓冲板20。
所述电梯井4内底部端面上轿厢2与对重块9对应下方均设置有聚氨酯缓冲器1。
本发明的工作原理是：本发明中，当轿厢2意外坠落时，电梯井 4上方第一限速器5和第二限速器21的转轮因为转速过快改变离心力从而停止转动，同时也会断开电梯的电气回路并停止曳引轮6转动，这时限速器停止转动，从而对轿厢2坠落产生制动作用；电梯井4内设置有安全绳11，安全绳11的长度与电梯井4高度保持一致，所以当轿厢2坠落坠落时，安全绳11会拉紧，保证轿厢2不会与地面撞击；轿厢2内设置有第一缓冲弹簧14，轿厢2底部设置有第二缓冲弹簧19和第三缓冲弹簧15，所以当轿厢2坠落后，底部的三层缓冲弹簧会吸收坠落的力；电梯井4内轿厢2和对重块9对应下方设置有聚氨酯缓冲器1，能够有效缓冲坠落的轿厢2。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (5)

  1. 一种电梯的防坠落保护装置，包括电梯井(4)，其特征在于：所述电梯井(4)内设置有轿厢(2)，所述电梯井(4)上方设置有曳引轮(6)，所述电梯井(4)上方曳引轮(6)左右两侧分别设置有第一限速器(5)和第二限速器(21)，所述轿厢(2)上端面连接曳引绳(7)一端，所述曳引绳(7)另一端分别绕过第一限速器(5)的限速器轮、曳引轮(6)以及第二限速器(21)的限速器轮并连接有对重块(9)，所述对重块(9)在电梯井(4)内轿厢(2)前侧设置，所述轿厢(2)左右两侧以及前侧均设置有导轨(8)，所述轿厢(2)与导轨(8)滑动连接设置。
  2. 根据权利要求1所述的一种电梯的防坠落保护装置，其特征在于：所述轿厢(2)顶端面设置有若干吊环(3)，所述电梯井(4)上方左右两侧设置有横梁(12)，所述横梁(12)与吊环(3)之间连接有安全绳(11)。
  3. 根据权利要求2所述的一种电梯的防坠落保护装置，其特征在于：所述安全绳(11)长度等同于电梯井(4)高度。
  4. 根据权利要求1所述的一种电梯的防坠落保护装置，其特征在于：所述轿厢(2)内设置有底板(13)，所述底板(13)与轿厢(2)内底部侧壁之间连接设置有若干第一缓冲弹簧(14)，所述轿厢(2)下方设置有若干缓冲块(22)，所述内设置有缓冲腔(17)，所述轿厢(2)底端面与缓冲块(22)之间设置有若干支杆(16)，所述支杆(16)上端与轿厢(2)底端面固定连接设置，所述支杆(16)下端伸入缓 冲腔(17)内连接有固定块(18)，所述缓冲腔(17)内底部侧壁与固定块(18)之间连接有第二缓冲弹簧(19)，所述缓冲块(22)上端面与轿厢(2)底端面之间的支杆(16)外表面设置有第三缓冲弹簧(15)，所述第三缓冲弹簧(15)上下端面分别与轿厢(2)底端面以及缓冲块(22)上端面固定连接设置，所述缓冲块(22)下端固定连接有缓冲板(20)。
  5. 根据权利要求1所述的一种电梯的防坠落保护装置，其特征在于：所述电梯井(4)内底部端面上轿厢(2)与对重块(9)对应下方均设置有聚氨酯缓冲器(1)。
PCT/CN2018/105928 2018-07-06 2018-09-17 一种电梯的防坠落保护装置 WO2020006872A1 (zh)

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