WO2020006875A1 - 一种电梯井的底部防护装置 - Google Patents

一种电梯井的底部防护装置 Download PDF

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Publication number
WO2020006875A1
WO2020006875A1 PCT/CN2018/105933 CN2018105933W WO2020006875A1 WO 2020006875 A1 WO2020006875 A1 WO 2020006875A1 CN 2018105933 W CN2018105933 W CN 2018105933W WO 2020006875 A1 WO2020006875 A1 WO 2020006875A1
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Prior art keywords
bearing plate
load bearing
load
plate
protection device
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PCT/CN2018/105933
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English (en)
French (fr)
Inventor
王应
刘开双
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Suzhou Mayford Elevator Co Ltd
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Suzhou Mayford Elevator Co Ltd
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Publication of WO2020006875A1 publication Critical patent/WO2020006875A1/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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B66B5/282—Structure thereof

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  • the invention relates to the technical field of an elevator shaft bottom protection device, in particular to an elevator shaft bottom protection device.
  • the length of the wire is proportional to the height of the floor. Consuming more materials, there are also complicated installation problems, causing problems such as high cost and difficult construction.
  • the elevator stays in a certain position, relying on the friction of the brake of the traction machine. It is realized by preventing the rotation of the motor. Once the brake fails, the car or counterweight will fall along the shaft under the action of gravity. Once this situation occurs when the elevator opens the door and enters and exits the passenger in the leveling position of the elevator, the personal injury accident is very serious.
  • the object of the present invention is to provide a bottom protection device for an elevator shaft to solve the problems mentioned in the background art.
  • the present invention provides the following technical solutions:
  • a bottom protection device for an elevator shaft includes a load-bearing plate, the load-bearing plate is suspended above a steel cable, load-bearing boxes are provided on the left and right sides of the load-bearing plate, and a weight is suspended in the load-bearing box.
  • Upper buffer springs are fixedly connected between the upper end surface of the weight block and the top end surface of the load-bearing box, and lower buffer springs are fixedly connected between the lower end surface of the weight block and the inner bottom end surface of the load-bearing box.
  • a guide device is provided above the side wall of the load bearing box near the load bearing plate, one end of the steel cable is fixedly connected to the upper end surface of the weight block in the load bearing box on the left side of the load bearing plate, and the other end of the steel cable is wound around It passes through the guide device and the pulley and is fixedly connected with the upper end surface of the weight in the load box on the right side of the load bearing plate.
  • the guide device includes a horizontal plate, one end of the horizontal plate is fixedly connected to a side wall of the load bearing box close to the side of the load bearing plate, and the other end of the horizontal plate is provided with a plurality of wheel grooves.
  • the same number of corresponding rollers as the rollers are provided on the bottom end surface of the load bearing plate, and the same number of steel cables as the rollers are provided below the load bearing plate.
  • a bottom plate is arranged below the steel cable, and a plurality of hydraulic cylinders are fixedly arranged above the bottom plate.
  • the upper end of the hydraulic cylinder is connected to one end of a hydraulic rod, and the other end of the hydraulic rod is connected to a bracket.
  • the bracket and hydraulic pressure A buffer spring is provided around the outer surface of the hydraulic rod between the cylinders.
  • a buffer pad is provided on an end surface of the load bearing plate.
  • the present invention has the beneficial effects that the present invention includes a load bearing plate. If the elevator falls, it will fall above the load bearing plate. The end surface of the load bearing plate is provided with a cushion to avoid direct impact. The steel cable will be tightened, and the weight in the load-bearing box will be moved upward by the guide device. At this time, the upper buffer spring will contract, and the lower buffer spring will be straightened to absorb a part of the falling force. In addition, when the load-bearing plate contacts the support, When the block is pressed, the hydraulic cylinder and the buffer spring will generate an upward supporting force to further cushion the speed of the falling. Therefore, the invention has a simple structure, a clear and easy to understand structure, and disperses and absorbs the force of the falling of the elevator to avoid disasters.
  • FIG. 1 is a schematic structural diagram of a bottom protection device of an elevator shaft
  • FIG. 2 is a schematic structural diagram of a guide device of a bottom protection device of an elevator shaft.
  • a bottom protection device for an elevator shaft including a load bearing plate 9, the load bearing plate 9 is suspended above the steel cable 6, and the load bearing plate 9 is left and right.
  • a load-bearing box 4 is provided on the side, and a weight 2 is suspended in the load-bearing box 4.
  • An upper buffer spring 3 is fixedly connected between the upper end surface of the weight 2 and the inner top surface of the load-bearing box 4.
  • a lower buffer spring 1 is fixedly connected between the end surface and the inner bottom end surface of the load-bearing box 4.
  • the left and right sides of the bottom end surface of the load-bearing plate 9 are provided with pulleys 7.
  • the load-bearing box 4 is provided above the side wall of the load-bearing plate 9 side.
  • a guide device 5, one end of the steel cable 6 is fixedly connected to the upper end surface of the weight 2 in the load box 4 on the left side of the load bearing plate 9, and the other end of the steel cable 6 bypasses the guide device 5, the pulley 7, and connects with the load plate 9
  • the upper end surface of the weight 2 in the right load-bearing box 4 is fixedly connected.
  • the guide device 5 includes a horizontal plate 15. One end of the horizontal plate 15 is fixedly connected to a side wall of the load bearing box 4 near the load plate 9. The other end of the horizontal plate 15 is provided with a plurality of wheel grooves 18. A rotating rod 17 is provided in the wheel groove 18, and a roller 16 is sleeved on the outer surface of the rotating rod 19.
  • the load bearing plate 9 is provided with the same number of corresponding rollers 7 as the rollers 16 at the bottom end surface, and the same number of steel cables 6 as the rollers 16 are provided below the load bearing plate 9.
  • a bottom plate 13 is arranged below the steel cable 6, and a plurality of hydraulic cylinders 14 are fixedly arranged above the bottom plate 13.
  • the upper end of the hydraulic cylinder 14 is connected to one end of a hydraulic rod 12, and the other end of the hydraulic rod 12 is connected to a bracket 10.
  • a buffer spring 11 is provided around the outer surface of the hydraulic rod 12 between the supporting block 10 and the hydraulic cylinder 14.
  • the upper end surface of the load bearing plate 9 is provided with a cushion pad 8 to prevent the falling elevator bridge box from directly hitting the load bearing plate 9.
  • the working principle of the present invention is that the present invention includes a load-bearing plate 9, which will fall above the load-bearing plate 9 if the elevator falls.
  • the cable 6 will be tightened, and the weight 2 in the load-bearing box 4 will be moved upward by the guide device 5.
  • the upper buffer spring 3 will contract, and the lower buffer spring 1 will be straightened to absorb a part of the falling force.
  • the hydraulic cylinder 14 and the buffer spring 11 will generate an upward supporting force to further cushion the falling speed.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Types And Forms Of Lifts (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

一种电梯井的底部防护装置，包括承重板（9），如果电梯坠落时，会落到承重板（9）上方，承重板（9）上端面设置有缓冲垫（8），避免直接撞击，这时承重板（9）下方的钢索（6）会绷紧，经过导向装置（5）拉动承重箱（4）内的重块（2）向上运动，此时，上缓冲弹簧（3）会收缩，下缓冲弹簧（1）会拉直，吸收一部分的下坠力；此外，当承重板（9）接触到托块（10）时，液压缸（14）和缓冲弹簧（11）会产生向上的托力，进一步缓冲下坠的速度，将电梯下坠的力进行分解分散吸收，避免灾害的发生。

Description

一种电梯井的底部防护装置 技术领域
本发明涉及电梯井底部防护装置技术领域，具体为一种电梯井的底部防护装置。
背景技术
随着越来越多的高层建筑出现，电梯应用更普遍，然而安全问题却是严峻，事故增多，特别是电梯厢及人员的坠落事故随着电梯坠落事故的日益频繁发生，电梯坠落到底层的冲击力很大，往往危及人身安全。当控制系统失控坠落时，电梯会急速下坠，现有技术中，常见的解决方法是采用机械限速器，即在轿厢行走时通过与之相连的钢丝带动限速器滑轮旋转，当速度高于阀值时，滑轮上的离心臂触碰安全开关，给出坠落信号，这种采用机械限速器的方法需要钢丝、滑轮、离心臂、弹簧等机械机构，钢丝长度正比于楼层高度，需要消耗材料较多，同时也存在安装繁杂的问题，造成成本高、施工难等问题，而且在目前的电梯系统中，电梯保持停止在某个位置的状态，是依靠曳引机的抱闸摩擦力阻止电机的转动而实现的，一旦抱闸失效轿厢或对重就会在重力作用下沿井道坠落。这种情况一旦发生在电梯平层位置开门进出乘客时，产生的人身伤害事故是非常严重的。
而且很多电梯井底部没有防坠落保护装置，原因是现有的防坠落保护装置结构复杂且成本高，耐久性差，难于维护，因此需要一种电梯井底部防护装置，对电梯进一步的保护。
发明内容
本发明的目的在于提供一种电梯井的底部防护装置，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：
一种电梯井的底部防护装置，包括承重板，所述承重板置于钢索上方悬空设置，所述承重板左右两侧设置有承重箱，所述承重箱内悬空设置有重块，所述重块上端面与承重箱内顶端面之间固定连接有上缓冲弹簧，所述重块下端面与承重箱内底端面之间固定连接有下缓冲弹簧，所述承重板底端面左右两侧设置有滑轮，所述承重箱内靠近承重板一侧侧壁上方设置有导向装置，所述钢索一端与承重板左侧承重箱内的重块上端面固定连接设置，所述钢索另一端绕过导向装置、滑轮并与承重板右侧承重箱内的重块上端面固定连接设置。
优选的，所述导向装置包括横板，所述横板一端与承重箱内靠近承重板一侧侧壁上方固定连接设置，所述横板另一端设置有若干轮槽，所述轮槽内设置有转杆，所述转杆外表面转动套设有滚轮。
优选的，所述承重板底端面设置有与滚轮相同数量且对应的滑轮，所述承重板下方设置有与滚轮相同数量的钢索。
优选的，所述钢索下方设置有底板，所述底板上方固定设置有若干液压缸，所述液压缸上端连接液压杆一端，所述液压杆另一端连接有托块，所述托块与液压缸之间的液压杆外表面环绕设置有缓冲弹簧。
优选的，所述承重板上端面设置有缓冲垫。
与现有技术相比，本发明的有益效果是：本发明包括承重板，如果电梯坠落时，会落到承重板上方，承重板上端面设置有缓冲垫，避免直接撞击，这时承重板下方的钢索会绷紧，经过导向装置拉动承重箱内的重块向上运动，此时，上缓冲弹簧会收缩，下缓冲弹簧会拉直，吸收一部分的下坠力；此外，当承重板接触到托块时，液压缸和缓冲弹簧会产生向上的托力，进一步缓冲下坠的速度，因此，本发明结构简单，构造清晰易懂，将电梯下坠的力进行分解分散吸收，避免灾害的发生。
附图说明
图1为一种电梯井的底部防护装置的结构示意图；
图2为一种电梯井的底部防护装置的导向装置结构示意图。
图中：1-下缓冲弹簧，2-重块，3-上缓冲弹簧，4-承重箱，5-导向装置，6-钢索，7-滑轮，8-缓冲垫，9-承重板，10-托块，11-缓冲弹簧，12-液压杆，13-底板，14-液压缸，15-横板，16-滚轮，17-转杆，18-轮槽。
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1～2，本发明提供一种技术方案：一种电梯井的底部 防护装置，包括承重板9，所述承重板9置于钢索6上方悬空设置，所述承重板9左右两侧设置有承重箱4，所述承重箱4内悬空设置有重块2，所述重块2上端面与承重箱4内顶端面之间固定连接有上缓冲弹簧3，所述重块2下端面与承重箱4内底端面之间固定连接有下缓冲弹簧1，所述承重板9底端面左右两侧设置有滑轮7，所述承重箱4内靠近承重板9一侧侧壁上方设置有导向装置5，所述钢索6一端与承重板9左侧承重箱4内的重块2上端面固定连接设置，所述钢索6另一端绕过导向装置5、滑轮7并与承重板9右侧承重箱4内的重块2上端面固定连接设置。
所述导向装置5包括横板15，所述横板15一端与承重箱4内靠近承重板9一侧侧壁上方固定连接设置，所述横板15另一端设置有若干轮槽18，所述轮槽18内设置有转杆17，所述转杆19外表面转动套设有滚轮16。
所述承重板9底端面设置有与滚轮16相同数量且对应的滑轮7，所述承重板9下方设置有与滚轮16相同数量的钢索6。
所述钢索6下方设置有底板13，所述底板13上方固定设置有若干液压缸14，所述液压缸14上端连接液压杆12一端，所述液压杆12另一端连接有托块10，所述托块10与液压缸14之间的液压杆12外表面环绕设置有缓冲弹簧11。
所述承重板9上端面设置有缓冲垫8，避免下坠的电梯桥箱与承重板9直接撞击。
本发明的工作原理是：本发明包括承重板9，如果电梯坠落时， 会落到承重板9上方，承重板9上端面设置有缓冲垫8，避免直接撞击，这时承重板9下方的钢索6会绷紧，经过导向装置5拉动承重箱4内的重块2向上运动，此时，上缓冲弹簧3会收缩，下缓冲弹簧1会拉直，吸收一部分的下坠力；此外，当承重板9接触到托块10时，液压缸14和缓冲弹簧11会产生向上的托力，进一步缓冲下坠的速度。
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. 一种电梯井的底部防护装置，包括承重板(9)，其特征在于：所述承重板(9)置于钢索(6)上方悬空设置，所述承重板(9)左右两侧设置有承重箱(4)，所述承重箱(4)内悬空设置有重块(2)，所述重块(2)上端面与承重箱(4)内顶端面之间固定连接有上缓冲弹簧(3)，所述重块(2)下端面与承重箱(4)内底端面之间固定连接有下缓冲弹簧(1)，所述承重板(9)底端面左右两侧设置有滑轮(7)，所述承重箱(4)内靠近承重板(9)一侧侧壁上方设置有导向装置(5)，所述钢索(6)一端与承重板(9)左侧承重箱(4)内的重块(2)上端面固定连接设置，所述钢索(6)另一端绕过导向装置(5)、滑轮(7)并与承重板(9)右侧承重箱(4)内的重块(2)上端面固定连接设置。
  2. 根据权利要求1所述的一种电梯井的底部防护装置，其特征在于：所述导向装置(5)包括横板(15)，所述横板(15)一端与承重箱(4)内靠近承重板(9)一侧侧壁上方固定连接设置，所述横板(15)另一端设置有若干轮槽(18)，所述轮槽(18)内设置有转杆(17)，所述转杆(19)外表面转动套设有滚轮(16)。
  3. 根据权利要求2所述的一种电梯井的底部防护装置，其特征在于：所述承重板(9)底端面设置有与滚轮(16)相同数量且对应的滑轮(7)，所述承重板(9)下方设置有与滚轮(16)相同数量的钢索(6)。
  4. 根据权利要求1所述的一种电梯井的底部防护装置，其特征在 于：所述钢索(6)下方设置有底板(13)，所述底板(13)上方固定设置有若干液压缸(14)，所述液压缸(14)上端连接液压杆(12)一端，所述液压杆(12)另一端连接有托块(10)，所述托块(10)与液压缸(14)之间的液压杆(12)外表面环绕设置有缓冲弹簧(11)。
  5. 根据权利要求1所述的一种电梯井的底部防护装置，其特征在于：所述承重板(9)上端面设置有缓冲垫(8)。
PCT/CN2018/105933 2018-07-06 2018-09-17 一种电梯井的底部防护装置 Ceased WO2020006875A1 (zh)

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