WO2021244195A1 - 一种电梯坠落缓冲保护装置 - Google Patents

一种电梯坠落缓冲保护装置 Download PDF

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Publication number
WO2021244195A1
WO2021244195A1 PCT/CN2021/090635 CN2021090635W WO2021244195A1 WO 2021244195 A1 WO2021244195 A1 WO 2021244195A1 CN 2021090635 W CN2021090635 W CN 2021090635W WO 2021244195 A1 WO2021244195 A1 WO 2021244195A1
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WO
WIPO (PCT)
Prior art keywords
elevator
bearing plate
elevator shaft
pressure
transverse
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PCT/CN2021/090635
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English (en)
French (fr)
Inventor
张政华
林汉峰
杨茜
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德森克电梯（中国）有限公司
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Publication of WO2021244195A1 publication Critical patent/WO2021244195A1/zh

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Classifications

    • 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
    • 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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • 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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Definitions

  • the invention relates to an elevator falling buffer protection device.
  • the purpose of the present invention is to provide an elevator fall buffer protection device, which has a reasonable structure and can effectively buffer and protect the elevator car, thereby improving the safety of the personnel in the elevator car.
  • the technical solution of the present invention is to design an elevator fall buffer protection device, which includes an elevator shaft and an elevator car arranged in the elevator shaft;
  • the bottom wall of the elevator shaft is provided with a first pressure-bearing plate
  • the bottom wall of the elevator shaft is provided with four spring mounting holes arranged in a rectangular shape, and each spring mounting hole is fixed with a first buffer spring, and The upper end of the buffer spring extends above the spring mounting hole and is fixedly connected to the first pressure-bearing plate, and a second pressure-bearing plate is provided above the first pressure-bearing plate, the second pressure-bearing plate and the first pressure-bearing plate
  • Four second buffer springs arranged in a rectangular shape are connected between them;
  • the two opposite side walls of the elevator shaft are each provided with a vertical chute, and the lower end of the vertical chute extends to the bottom wall of the elevator shaft,
  • the bottom of the side wall of the elevator shaft is provided with an opening communicating with the lower end of the vertical chute, both ends of the first pressure bearing plate respectively pass through the opening and extend into the vertical chute, the vertical chute
  • a vertical sliding block is slidably connected inside the vertical sliding block, and
  • the outer end of the transverse chute penetrates the side wall of the elevator shaft, and a transverse slide is slidably connected in the transverse chute.
  • a compression spring is connected between the transverse slider and the inner end of the transverse slide groove, and the transverse slider is connected with a first friction plate located outside the transverse slide groove, the bottom of the transverse slider is provided with a positioning hole, and the stopper The upper end of the rod is inserted into the positioning hole;
  • the bottom of the elevator car is provided with a supporting plate, and the two sides of the supporting plate are respectively connected with second friction plates corresponding to the first friction plates.
  • a heat insulation block is provided between the second friction plate and the supporting plate.
  • the bottom of the first friction plate is provided with a first guide slope
  • the top of the second friction plate is provided with a second guide slope corresponding to the first guide slope
  • the first friction plate abuts against the side wall of the elevator shaft.
  • the advantages and beneficial effects of the present invention are that it provides an elevator fall buffer protection device, which has a reasonable structure and can effectively buffer and protect the elevator car, thereby improving the safety of the personnel in the elevator car.
  • the supporting plate arranged at the bottom of the elevator car contacts the second pressure-bearing plate, and then drives the second pressure-bearing plate and the first pressure-bearing plate to go down, thereby compressing the second buffer spring and the first buffer
  • the first buffer spring and the second buffer spring jointly absorb the impact force received by the people in the elevator car, so as to improve the safety of the people in the elevator car.
  • the stop rod will be driven to move down the vertical chute until the first pressure-bearing plate contacts the bottom wall of the elevator shaft, and the upper end of the stop rod is removed from the positioning hole of the horizontal slide block.
  • the horizontal sliding block will slide a certain distance outward along the horizontal chute under the elastic restoring force of the compression spring, so that the horizontal sliding block will drive the first friction plate to move to the working position; High-speed rebound occurs under the elastic restoring force of the first buffer spring and the second buffer spring, which is likely to cause secondary injury to the personnel in the elevator car. Therefore, it is necessary to decelerate the rebound of the elevator car; specifically, in the elevator car.
  • the pallet will separate from the second pressure-bearing plate, and the first pressure-bearing plate will drive the stop rod upward under the elastic restoring force of the first buffer spring, so that the upper end of the stop rod is inserted into the lateral slide In the groove and blocked on the inner side of the transverse slide block, the transverse slide block and the first friction plate in the working position are prevented from retreating.
  • the second friction plate is driven to move upward. The friction plate and the second friction plate will contact and cooperate under the guidance of the first guide slope and the second guide slope and generate frictional resistance, so as to slow down the rebound of the elevator car and avoid the elevator car's internal personnel due to high-speed rebound. Causes secondary damage.
  • Figure 1 is a schematic diagram of the present invention.
  • Fig. 2 is an enlarged view of A in Fig. 1.
  • an elevator fall buffer protection device includes an elevator shaft 1 and an elevator car 2 arranged in the elevator shaft 1;
  • the bottom wall of the elevator shaft 1 is provided with a first pressure-bearing plate 3, and the bottom wall of the elevator shaft 1 is provided with four spring mounting holes 4 arranged in a rectangular shape, and a first buffer is fixed in each spring mounting hole 4 The upper end of the first buffer spring 5 extends above the spring mounting hole 4 and is fixedly connected to the first pressure-bearing plate 3, and a second pressure-bearing plate 6 is provided above the first pressure-bearing plate 3.
  • Each second buffer spring 7 in a rectangular arrangement are connected between the second pressure-bearing plate 6 and the first pressure-bearing plate 3; two opposite side walls of the elevator shaft 1 are each provided with vertical slide grooves 8, The lower end of the vertical chute 8 extends to the bottom wall of the elevator shaft 1, and the bottom of the side wall of the elevator shaft 1 is provided with an opening 9 communicating with the lower end of the vertical chute 8.
  • the first pressure-bearing plate 3 The two ends of each pass through the opening 9 and extend into the vertical sliding groove 8.
  • the vertical sliding groove 8 is slidably connected with a vertical sliding block 10, and the vertical sliding block 10 is fixed with a stop rod. 11.
  • the blocking rod 11 is arranged vertically, and the lower end of the blocking rod 11 is fixedly connected to the first pressure-bearing plate 3.
  • the side wall of the elevator shaft 1 is also provided with a transverse direction communicating with the upper end of the vertical chute 8.
  • the chute 12, the outer end of the lateral chute 12 penetrates the side wall of the elevator shaft 1, and the lateral chute 12 is slidably connected with a lateral sliding block 13 which is connected to the inner end of the lateral chute 12 A compression spring 14 is connected therebetween, and the transverse slider 13 is connected with a first friction plate 15 located outside the transverse sliding groove 12, a positioning hole is provided at the bottom of the transverse slider 13, and the upper end of the blocking rod 11 is inserted In the positioning hole;
  • the bottom of the elevator car 2 is provided with a supporting plate 16, and two friction plates 17 corresponding to the first friction plate 15 are respectively connected to both sides of the supporting plate 16.
  • a heat insulating block 18 is provided between the second friction plate 17 and the supporting plate 16.
  • the bottom of the first friction plate 15 is provided with a first guide slope 151
  • the top of the second friction plate 17 is provided with a second guide slope 171 corresponding to the first guide slope 151.
  • the above-mentioned first friction plate 15 abuts against the side wall of the elevator shaft 1.
  • the advantages and beneficial effects of the present invention are that it provides an elevator fall buffer protection device, which has a reasonable structure and can effectively buffer and protect the elevator car 2 so as to improve the safety of the personnel in the elevator car 2.
  • the supporting plate 16 arranged at the bottom of the elevator car 2 contacts the second pressure-bearing plate 6, and then drives the second pressure-bearing plate 6 and the first pressure-bearing plate 3 to go down, thereby compressing the second
  • the buffer spring 7 and the first buffer spring 5, together by the first buffer spring 5 and the second buffer spring 7, absorb the impact force received by the people in the elevator car 2 to improve the safety of the people in the elevator car 2.
  • the stop rod 11 is driven to go down along the vertical chute 8 until the first pressure-bearing plate 3 contacts the bottom wall of the elevator shaft, and the upper end of the stop rod 11 moves from the horizontal direction.
  • the sliding block 13 is drawn out from the positioning hole.
  • the horizontal sliding block 13 will slide outwards along the horizontal sliding groove 12 for a certain distance under the elastic restoring force of the compression spring 14, so that the horizontal sliding block 13 drives the first friction plate 15 to move.
  • the elevator car 2 will rebound at a high speed under the elastic restoring force of the first buffer spring 5 and the second buffer spring 7 after the elevator car 2 descends, it is easy to cause secondary injury to the personnel in the elevator car 2, so it is necessary Decelerate the rebound of the elevator car 2; specifically, during the upward rebound of the elevator car 2, the pallet 16 will be separated from the second pressure-bearing plate 6, and the first pressure-bearing plate 3 will be in the first buffer spring Under the action of the elastic restoring force of 5, the stop rod 11 is driven up, so that the upper end of the stop rod 11 is inserted into the transverse sliding groove 12 and blocked inside the transverse slider 13, thereby preventing the transverse slider 13 and the first friction in the working position The sheet 15 retreats, and after the pallet 16 is separated from the second pressure-bearing plate

Abstract

公开了一种电梯坠落缓冲保护装置，包括电梯井（1）和电梯轿厢（2）；电梯井（1）内设有第一承压板（3），电梯井（1）的底壁上设有与第一承压板（3）连接的第一缓冲弹簧（5），第一承压板（3）的顶部通过第二缓冲弹簧（7）连接有第二承压板（6）；电梯井（1）的两个相对侧壁内均设有竖向滑槽（8），第一承压板（3）的两端分别延伸至竖向滑槽（8）内并设有挡杆（11），电梯井（1）的侧壁内还设有横向滑槽（12），横向滑槽（12）内连接有横向滑块（13），横向滑块（13）的内侧连接有压缩弹簧（14），横向滑块（13）的外侧连接有第一摩擦片（15），横向滑块（13）的底部设有定位孔，挡杆（11）的上端插入定位孔中；电梯轿厢（2）的底部设有托板（16），托板（16）的两侧分别连接有第二摩擦片（17）。该保护装置，可有效的对电梯轿厢进行缓冲保护，从而提高电梯轿厢内人员的安全性。

Description

一种电梯坠落缓冲保护装置 技术领域
本发明涉及一种电梯坠落缓冲保护装置。
 背景技术
近年来，随着电梯事故的不断发生，使得人们对电梯的安全防护装置越来越关注。尤其是高层电梯，当轿厢运行至较高楼层时，如果牵引轿厢的钢绳发生断裂，轿厢坠落过程中的防护装置一般是安全钳，但是会有轿厢导轨断裂或者安全钳失灵的情况发生，那么轿厢将一直加速坠落至电梯井道底坑，就会导致坠梯而引发严重事故。现有的电梯安全防护手段不多，因此需要设计一种电梯坠落缓冲保护装置。
 技术解决方案
本发明的目的在于提供一种电梯坠落缓冲保护装置，其结构合理，可有效的对电梯轿厢进行缓冲保护，从而提高电梯轿厢内人员的安全性。
为实现上述目的，本发明的技术方案是设计一种电梯坠落缓冲保护装置，包括电梯井，以及设置在电梯井中的电梯轿厢；
所述电梯井的底壁上方设有第一承压板，且电梯井的底壁上设有四个呈矩形布置的弹簧安装孔，各弹簧安装孔内固定有第一缓冲弹簧，且第一缓冲弹簧的上端延伸至弹簧安装孔的上方并与第一承压板固定连接，所述第一承压板的上方设有第二承压板，该第二承压板和第一承压板之间连接有四个呈矩形布置的第二缓冲弹簧；所述电梯井的两个相对侧壁内均设有竖向滑槽，所述竖向滑槽的下端延伸至电梯井的底壁，所述电梯井的侧壁底部设有与竖向滑槽的下端连通的开口，所述第一承压板的两端分别穿过开口并延伸至竖向滑槽内，所述竖向滑槽内可滑动的连接有竖向滑块，该竖向滑块中固定穿设有挡杆，该挡杆竖直布置，且该挡杆的下端与第一承压板固定连接，所述电梯井的侧壁内还设有与竖向滑槽的上端连通的横向滑槽，该横向滑槽的外端贯穿电梯井的侧壁，且该横向滑槽内可滑动的连接有横向滑块，该横向滑块与横向滑槽的内端之间连接有压缩弹簧，且该横向滑块连接有位于横向滑槽外部的第一摩擦片，所述横向滑块的底部设有定位孔，所述挡杆的上端插入定位孔中；
所述电梯轿厢的底部设有托板，该托板的两侧分别连接有与第一摩擦片相对应的第二摩擦片。
优选的，所述第二摩擦片和托板之间设有隔热块。
优选的，所述第一摩擦片的底部设有第一导向斜面，所述第二摩擦片的顶部设有与第一导向斜面相对应的第二导向斜面。
优选的，所述第一摩擦片贴靠于电梯井的侧壁。
 有益效果
本发明的优点和有益效果在于：提供一种电梯坠落缓冲保护装置，其结构合理，可有效的对电梯轿厢进行缓冲保护，从而提高电梯轿厢内人员的安全性。
当电梯轿厢发生坠落时，由设置在电梯轿厢底部的托板接触第二承压板，之后带动第二承压板以及第一承压板下行，从而压缩第二缓冲弹簧以及第一缓冲弹簧，由第一缓冲弹簧和第二缓冲弹簧共同吸收电梯轿厢内人员所受到的冲击力，以提高电梯轿厢内人员的安全性。并且，在第一承压板下行的过程中，将带动挡杆沿竖向滑槽下行，直到第一承压板与电梯井的底壁接触时，挡杆的上端从横向滑块的定位孔中抽出，此时横向滑块将在压缩弹簧的弹性恢复力作用下沿横向滑槽向外滑行一定距离，从而由横向滑块带动第一摩擦片移至工作位置；由于电梯轿厢下落后会在第一缓冲弹簧以及第二缓冲弹簧的弹性恢复力作用下发生高速反弹，容易对电梯轿厢内的人员造成二次伤害，因此需要对电梯轿厢的反弹进行减速；具体的，在电梯轿厢向上反弹的过程中，托板将与第二承压板分离，并且第一承压板将在第一缓冲弹簧的弹性恢复力作用下带动挡杆上行，以使挡杆的上端插入横向滑槽内并阻挡在横向滑块的内侧，从而防止横向滑块以及处于工作位置的第一摩擦片后退，在托板与第二承压板分离后带动第二摩擦片上行，该过程中第一摩擦片和第二摩擦片将在第一导向斜面和第二导向斜面的引导下接触配合并产生摩擦阻力，从而使电梯轿厢的反弹减速，避免了电梯轿厢因高速反弹而对其内部人员造成二次伤害。
 附图说明
图1是本发明的示意图。
图2是图1中A处的放大图。
 本发明的最佳实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
本发明具体实施的技术方案是：
如图1和图2所示，一种电梯坠落缓冲保护装置，包括电梯井1，以及设置在电梯井1中的电梯轿厢2；
所述电梯井1的底壁上方设有第一承压板3，且电梯井1的底壁上设有四个呈矩形布置的弹簧安装孔4，各弹簧安装孔4内固定有第一缓冲弹簧5，且第一缓冲弹簧5的上端延伸至弹簧安装孔4的上方并与第一承压板3固定连接，所述第一承压板3的上方设有第二承压板6，该第二承压板6和第一承压板3之间连接有四个呈矩形布置的第二缓冲弹簧7；所述电梯井1的两个相对侧壁内均设有竖向滑槽8，所述竖向滑槽8的下端延伸至电梯井1的底壁，所述电梯井1的侧壁底部设有与竖向滑槽8的下端连通的开口9，所述第一承压板3的两端分别穿过开口9并延伸至竖向滑槽8内，所述竖向滑槽8内可滑动的连接有竖向滑块10，该竖向滑块10中固定穿设有挡杆11，该挡杆11竖直布置，且该挡杆11的下端与第一承压板3固定连接，所述电梯井1的侧壁内还设有与竖向滑槽8的上端连通的横向滑槽12，该横向滑槽12的外端贯穿电梯井1的侧壁，且该横向滑槽12内可滑动的连接有横向滑块13，该横向滑块13与横向滑槽12的内端之间连接有压缩弹簧14，且该横向滑块13连接有位于横向滑槽12外部的第一摩擦片15，所述横向滑块13的底部设有定位孔，所述挡杆11的上端插入定位孔中；
所述电梯轿厢2的底部设有托板16，该托板16的两侧分别连接有与第一摩擦片15相对应的第二摩擦片17。
上述第二摩擦片17和托板16之间设有隔热块18。
上述第一摩擦片15的底部设有第一导向斜面151，上述第二摩擦片17的顶部设有与第一导向斜面151相对应的第二导向斜面171。
上述第一摩擦片15贴靠于电梯井1的侧壁。
本发明的优点和有益效果在于：提供一种电梯坠落缓冲保护装置，其结构合理，可有效的对电梯轿厢2进行缓冲保护，从而提高电梯轿厢2内人员的安全性。
当电梯轿厢2发生坠落时，由设置在电梯轿厢2底部的托板16接触第二承压板6，之后带动第二承压板6以及第一承压板3下行，从而压缩第二缓冲弹簧7以及第一缓冲弹簧5，由第一缓冲弹簧5和第二缓冲弹簧7共同吸收电梯轿厢2内人员所受到的冲击力，以提高电梯轿厢2内人员的安全性。并且，在第一承压板3下行的过程中，将带动挡杆11沿竖向滑槽8下行，直到第一承压板3与电梯井的底壁接触时，挡杆11的上端从横向滑块13的定位孔中抽出，此时横向滑块13将在压缩弹簧14的弹性恢复力作用下沿横向滑槽12向外滑行一定距离，从而由横向滑块13带动第一摩擦片15移至工作位置；由于电梯轿厢2下落后会在第一缓冲弹簧5以及第二缓冲弹簧7的弹性恢复力作用下发生高速反弹，容易对电梯轿厢2内的人员造成二次伤害，因此需要对电梯轿厢2的反弹进行减速；具体的，在电梯轿厢2向上反弹的过程中，托板16将与第二承压板6分离，并且第一承压板3将在第一缓冲弹簧5的弹性恢复力作用下带动挡杆11上行，以使挡杆11的上端插入横向滑槽12内并阻挡在横向滑块13的内侧，从而防止横向滑块13以及处于工作位置的第一摩擦片15后退，在托板16与第二承压板6分离后带动第二摩擦片17上行，该过程中第一摩擦片15和第二摩擦片17将在第一导向斜面151和第二导向斜面171的引导下接触配合并产生摩擦阻力，从而使电梯轿厢2的反弹减速，避免了电梯轿厢2因高速反弹而对其内部人员造成二次伤害。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

  1. 一种电梯坠落缓冲保护装置，其特征在于，包括电梯井，以及设置在电梯井中的电梯轿厢；
    所述电梯井的底壁上方设有第一承压板，且电梯井的底壁上设有四个呈矩形布置的弹簧安装孔，各弹簧安装孔内固定有第一缓冲弹簧，且第一缓冲弹簧的上端延伸至弹簧安装孔的上方并与第一承压板固定连接，所述第一承压板的上方设有第二承压板，该第二承压板和第一承压板之间连接有四个呈矩形布置的第二缓冲弹簧；所述电梯井的两个相对侧壁内均设有竖向滑槽，所述竖向滑槽的下端延伸至电梯井的底壁，所述电梯井的侧壁底部设有与竖向滑槽的下端连通的开口，所述第一承压板的两端分别穿过开口并延伸至竖向滑槽内，所述竖向滑槽内可滑动的连接有竖向滑块，该竖向滑块中固定穿设有挡杆，该挡杆竖直布置，且该挡杆的下端与第一承压板固定连接，所述电梯井的侧壁内还设有与竖向滑槽的上端连通的横向滑槽，该横向滑槽的外端贯穿电梯井的侧壁，且该横向滑槽内可滑动的连接有横向滑块，该横向滑块与横向滑槽的内端之间连接有压缩弹簧，且该横向滑块连接有位于横向滑槽外部的第一摩擦片，所述横向滑块的底部设有定位孔，所述挡杆的上端插入定位孔中；
    所述电梯轿厢的底部设有托板，该托板的两侧分别连接有与第一摩擦片相对应的第二摩擦片。
  2. 根据权利要求1所述的电梯坠落缓冲保护装置，其特征在于，所述第二摩擦片和托板之间设有隔热块。
  3. 根据权利要求2所述的电梯坠落缓冲保护装置，其特征在于，所述第一摩擦片的底部设有第一导向斜面，所述第二摩擦片的顶部设有与第一导向斜面相对应的第二导向斜面。
  4. 根据权利要求3所述的电梯坠落缓冲保护装置，其特征在于，所述第一摩擦片贴靠于电梯井的侧壁。
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