WO2009127142A1 - 一种具有缓冲功能的防坠落设备 - Google Patents

一种具有缓冲功能的防坠落设备 Download PDF

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Publication number
WO2009127142A1
WO2009127142A1 PCT/CN2009/071214 CN2009071214W WO2009127142A1 WO 2009127142 A1 WO2009127142 A1 WO 2009127142A1 CN 2009071214 W CN2009071214 W CN 2009071214W WO 2009127142 A1 WO2009127142 A1 WO 2009127142A1
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WIPO (PCT)
Prior art keywords
block
buffer
sliding
lower casing
guide rail
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Application number
PCT/CN2009/071214
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English (en)
French (fr)
Inventor
陈锦鹏
陈丽芳
Original Assignee
Chen Jinpeng
Chen Lifang
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Publication date
Application filed by Chen Jinpeng, Chen Lifang filed Critical Chen Jinpeng
Publication of WO2009127142A1 publication Critical patent/WO2009127142A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043Lifelines, lanyards, and anchors therefore
    • A62B35/005Vertical lifelines
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0093Fall arrest reel devices

Definitions

  • the present invention relates to a high-altitude fall-prevention safety-saving safety device used in an ascending operation in the electric power, chemical, construction, and the like industries, and more particularly to an aerial workperson with a seat belt capable of automatically preventing a sudden fall. Falling and cushioning equipment.
  • the fall arrester When an operator accident occurs, if the operator does not first lean back and then fall, the fall arrester will first slide down a distance and then cooperate with the guide rail to brake.
  • this braking method is a rigid brake, which exerts a great force on the operator's body; without buffering, it will inevitably cause certain damage to the operator's body.
  • the domestic schemes for high-altitude fall arrest buffers are mainly: (1) A flexible cushioning belt is attached to the seat belt, and the cushioning of the elastic buffer belt is made during accidental fall. Use, to reduce the impact of the rope pulling force on the human body.
  • this elastic buffer belt is not ideal in practical applications, and can not be reused, and needs to be further improved;
  • a tear buffer on the seat belt a two-layer nylon is attached to the seat belt.
  • double-layer damping belt when the operator accidentally falls from a high place, the falling force of the human body tears the nylon belt or the damping belt into two layers, and the cushioning is realized by the tearing force.
  • due to limited force it can not reduce the damage of the impact force to the human body to a large extent, and can only be used once, and will be scrapped after use;
  • the side of the fall arrester is pulled by the belt of the seat belt.
  • the anti-falling device is stuck to the guide rail brake, and the side pulled by the seat belt on the rotating block is pulled away from the rotating block main body by the falling worker along the curved seam, resulting in Buffering effect.
  • the current state of the art is that only one company in foreign countries can produce such a fall arrester.
  • China there is no suitable manufacturing material to ensure that the side pulled by the seat belt on the rotating block is dropped along the curved seam.
  • the operator pulls away from the main body of the rotating block and ensures the safety of personnel when destructively pulling away. Therefore, the anti-falling buffer technology is theoretically realized in China, and no manufacturer can actually manufacture it.
  • the fall arrester can only be used once, and is scrapped after use. It cannot be reused for safe use, requires high production materials, and has high manufacturing cost.
  • the technical problem solved by the present invention is to provide a fall arresting device having a cushioning function that can be reused.
  • the present invention adopts the following technical solutions.
  • a device with a cushioning function for preventing fall including:
  • the upper part of the lower casing (1) is provided with a through hole (101), and the sliding buffer block (5) is provided with a counterbore (501) corresponding to the through hole (101), the counterbore ( 501) is connected to the through hole (101) by a spring (3); and the guide rail (8) is punched out of the card seat (801), and the chuck (701) on the rotating block (7) catches the card holder (801), the entire device is automatically locked on the guide rail (8), and the anti-drop function is first realized;
  • the rotating block (7) is caught on the card holder (801) and locked on the guide rail (8), and the sliding guide block (501) on the sliding buffer block (5) is along the rotating block ( 7)
  • the upper sliding groove (702) slides, the sliding buffer block (5) moves down the counterbore (703), and the compression buffer spring (6) acts as a buffer.
  • a semi-closed counterbore (703) is opened, and a guide groove (702) is formed on the inner wall of the counterbore (703).
  • a cylindrical body is matched with the semi-closed counterbore (12), and the outer wall of the cylindrical body is opened and The guide groove (702) of the guide groove (702) cooperates with each other.
  • the sliding buffer block (5) is integrally assembled with the rotating block (7), and the front end is provided with a blocking piece (4), and the counterbore (703) is provided with a buffer special spring (6) device.
  • a through hole (102) is formed in a bottom of the lower casing (1), and the rotating block (7) is adjacent to the through hole (102) of the chuck (701) at the end of the guide rail (8) Extend the lower case (1).
  • the sliding buffer block (5) is pulled by the belt to open a through hole (503) through the sliding buffer block (5).
  • the tail of the upper casing (2) is designed with a tail (103), and the sliding tail (504) of the sliding buffer (5) can pass through the upper casing (2) along the tail (103).
  • An adjustment bolt (13) is formed at a position where the lower rear portion of the lower casing (1) is in contact with the rotating block (7).
  • a pin (12) is formed at a position where the middle portion of the lower casing (1) is in contact with the guide rail (8).
  • the guide rail (8) is a C-type carriage rail.
  • the device with the cushioning function fall prevention has the advantages of simple structure and repeated use, and solves the problem that the current fall arrester cannot be reused for one time or even once in the buffer application;
  • the operator can ensure that the fall-proof equipment slides smoothly and smoothly in the guide rails regardless of whether it moves up and down, or the left and right lateral movements, which increases the safety of the aerial workers when climbing. Sex and work convenience;
  • the fall arrester can be directly locked on the guide rail deck, even in the harsh environment such as rain, snow, icing weather and oil pollution, it can also play a good fall prevention.
  • the protection overcomes the problem that the safety of the fall prevention is low due to the difficulty in determining the range of the friction coefficient between the existing fall prevention device and the guide rail;
  • the braking distance of the anti-drop device on the guide rail can be designed to be 12. 5CM, the braking distance is short, and the impact force is small.
  • FIG. 1 is a front elevational view showing a state in which a chuck on a rotating block of the embodiment of the present invention having a cushioning function fall arresting device is unscrewed from the bottom of the casing and the cushioning device has not been opened;
  • FIG. 2 is a top plan view of the slider on the rotating block of the embodiment of the present invention having a cushioning function fall arresting device when the chuck is unscrewed from the bottom of the casing and the cushioning device has not been opened;
  • Figure 3 is a side elevational view of the slider on the rotating block of the embodiment of the present invention having a cushioning function fall arresting device when the chuck is unscrewed from the bottom of the casing and the cushioning device has not been opened;
  • Figure 4 is a cross-sectional view showing a specific embodiment of the anti-fall device having a cushioning function according to the present invention
  • Figure 5 is an unremoved block of the specific embodiment of the anti-fall device having a cushioning function according to the present invention
  • Figure 6 is a cross-sectional view showing the removed flap of the embodiment of the present invention having a cushioning function fall arresting device
  • Figure 7 is a cross-sectional view of the locking block on the rotating block of the embodiment of the present invention having the cushioning function of the cushioning device, which is freely contracted in the casing and which is engaged with the C-shaped carriage rail when the cushioning device is opened;
  • Figure 8 is a cross-sectional view showing the chuck on the rotating block of the embodiment of the present invention having a cushioning function fall arresting device which protrudes outside the casing to lock the C-shaped rail deck and is about to open the cushioning device;
  • Figure 9 is a cross-sectional view showing the clip on the rotating block of the embodiment of the present invention having a cushioning function anti-drop device extending from the outer casing to lock the C-shaped guide card holder and opening the buffer device; The principle of the anti-falling and buffering function of the present invention is explained.
  • a specific embodiment of the present invention includes a lower casing (1), an upper casing (2), a blocking piece (4), a sliding buffer block (5), and a buffer spring. (6), rotating the block (7), the pulley (9), the pulley shaft (10), the central shaft (11), the pin (12) and the adjusting bolt (13), wherein the blocking piece (4), A fall arrester and a buffering device composed of a sliding buffer block (5), a rotating block (7) and a buffer spring (6) extend through the bottom of the lower casing (1) and the top of the upper casing (2), and the fixed end thereof Into the lower casing (1), and movably connected to the lower casing (1) through the central shaft (11), so that the sliding buffer block (5), the rotating block ( 7) Anti-falling and cushioning device composed of buffer spring (6) Rotating around the central shaft (11) inside the lower casing (1) and the upper casing (2); the upper portion of the lower casing (1) is provided with a through hole (
  • the embodiment of the present invention is designed with a spring weighting device to balance the fall protection device with the spring force of the spring (3).
  • the spring (3) is transmitted by the sliding buffer block (5). Compressed by the force of the force, the chuck (701) of the rotating block (7) of the fall arresting device is contracted in the lower casing (1) and the upper casing (2) (Fig. 7), the operator When climbing upwards, the fall protection device is free to slide along the guide rail by the belt.
  • the spring (3) will be pushed by the stop (4), sliding buffer when the seat belt is lost.
  • the anti-drop and cushioning device consisting of the block (5), the buffer spring (6) and the rotating block (7) rotates around the central axis (11) to make the rotating block

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)

Description

一种具有缓冲功能的防坠落设备
技术领域 本发明涉及电力、化工、建筑等行业的登高作业时使用的高空防 坠落救生安全装置,尤其涉及一种用于系有安全带的高空作业人员在 突然发生坠落的情况下, 能自动防坠落及具有缓冲功能的设备。
背景技术 电力、 化工、 建筑等领域都离不开登高作业, 尤其在电力输变电 线路杆塔、 变电构架、 通信杆塔相关工作中, 登高作业非常普遍。 近 年来, 电力发展速度较快, 对安全管理水平要求越来越高, 电网建设 和改造的工作任务越来越重。大量的施工、检修工作任务都涉及到登 高作业, 如果没有可靠的防坠落设备, 会给作业人员带来巨大的安全 隐患。 为此,业界的众多设计者都对高空作业防坠落安全装置进行了研 究开发。现在高空作业使用的防坠器的主要工作原理是通过防坠器与 导轨之间的相互作用产生制动效果。 当作业人员发生意外时, 若作业 人员不是先向后仰再下坠,防坠器就会先下滑一段距离再与导轨配合 制动。但这种制动方法属于刚性制动, 对作业人员身体会产生很大的 作用力; 没有缓冲, 必然会对作业人员的身体产生一定的伤害。 目前国内对高空防坠落缓冲采用的方案主要有: (1 ) 在安全带 上加装一段有弹性的缓冲带,在意外坠落时通过弹性缓冲带的缓冲作 用, 减小绳索拉力对人体的冲击。但这种弹性缓冲带在实际应用当中 并不理想, 且不能重复使用, 有待于进一歩的改善; (2 ) 在安全带 上利用撕裂缓冲的方法,在安全带上加装一段两层尼龙带或双层阻尼 带, 当作业人员不慎从高处坠落时, 人体的坠落拉力将尼龙带或阻尼 带两层撕开, 通过撕扯力的作用实现缓冲。但是由于作用力有限, 并 不能在很大程度上减少冲击力对人体的伤害作用, 且只能使用一次, 使用后即报废; (3) 防坠器受安全带连接绳拉动的一侧开有贯穿转 动件的曲线缝, 当人员发生坠落时, 防坠器卡住导轨制动后, 转动块 上安全带拉动的一侧沿着曲线缝会被坠下的作业人员拉离转动块主 体, 产生缓冲作用。但目前该技术的现状是, 国外仅一家公司可以生 产出这样的防坠器, 在中国国内由于没有适合的制造材料来保证, 当 转动块上安全带拉动的一侧沿着曲线缝被坠下的作业人员拉离转动 块主体, 进行破坏性拉离时还能确保人员的安全, 因此该防坠缓冲技 术在国内只是理论上实现, 尚无厂家可以真正制造出来。且该防坠器 只能使用一次,使用后即报废,不能重复安全使用,生产材料要求高, 制造成本高昂。
发明内容
本发明解决的技术问题是提供一种具有缓冲功能可重复使用的 防坠落的设备。 为解决上述技术问题, 本发明采用如下的技术方案, 一种具有缓冲功能防坠落的设备, 包括:
下壳体(1)、 上壳体(2)、 挡片 (4)、 滑动缓冲块 (5)、 缓冲弹 簧 (6)、 转动卡块 (7)、 滑轮(9) 和中心轴 (11), 其中所述的挡片 (4)、 滑动缓冲块(5)、 转动卡块 (7) 和缓冲弹簧(6) 组成的防坠 及缓冲装置贯穿所述的下壳体(1)底部及上壳体(2)顶部, 其固定 端置入所述的下壳体 (1) 内, 并通过所述的中心轴 (11) 与所述的 下壳体(1) 活动连接, 使所述的滑动缓冲块(5)、 转动卡块 (7)和 缓冲弹簧 (6) 组成的防坠及缓冲装置可绕所述的中心轴 (11) 在下 壳体 (1) 和上壳体 (2) 的内部转动;
所述的下壳体 (1) 的上部开有通孔 (101), 在所述的滑动缓冲 块 (5) 上开有与通孔 (101) 对应的沉孔 (501), 该沉孔 (501) 与 通孔 ( 101)之间通过弹簧 (3)相连;而导轨 (8)上冲压出卡座 (801), 所述转动卡块(7) 上的卡头 (701) 卡住卡座 (801), 使整个装置自 动锁住在导轨 (8) 上,首先实现防坠功能;
所述的转动卡块 (7) 卡住在卡座 (801), 锁住在导轨 (8) 上, 滑动缓冲块 (5) 其上的导滑凸台 (501) 即沿着转动卡块 (7) 上的 导滑凹槽 (702) 滑动, 所述的滑动缓冲块 (5) 顺着沉孔 (703) 下 移、 压缩缓冲弹簧 (6) 实现缓冲作用。
在所述的转动卡块(7)远离导轨(8) 的一端, 开设有半封闭的 沉孔 (703), 且在沉孔 (703) 的内壁上开有导滑凹槽 (702)。
在所述的滑动缓冲块(5)靠近导轨(8) 的一端, 设计有与半封 闭的沉孔(12)相配合的圆柱状体, 且在圆柱状体的外壁上开设有与 导滑凹槽 (702) 相互配合的导滑凸台 (502)。
在所述的滑动缓冲块 (5 ) 与转动卡块 (7) 啮合装配成一体,其 前端设有挡片 (4), 沉孔 (703 ) 内置有缓冲专用弹簧 (6) 装置。
在所述的下壳体 (1 ) 的底部开有通孔 (102), 所述的转动卡块 ( 7)靠近导轨 (8)—端的卡头 (701 ) 可穿过该通孔(102)伸出下 壳体 ( 1 ) 夕卜。
所述的滑动缓冲块 (5) 受安全带拉动的一端开有贯穿滑动缓冲 块 (5) 的通孔 (503)。
所述的上壳体 (2 ) 的尾部设计有尾口 (103), 滑动缓冲块 (5 ) 的滑动尾部 (504) 可沿尾口 (103) 贯穿出上壳体 (2) 夕卜。
所述的下壳体(1 ) 的后下部位与转动卡块(7)接触位置设计有 调节螺栓 (13)。
所述的下壳体(1 )的中部与导轨(8)接触位置设计有销轴(12)。 所述的导轨 (8) 为 C型卡座导轨。 与现有技术相比, 本发明具有以下有益效果: 首先, 由于采用防坠器及内置式缓冲装置一体化设计, 集高空防 坠落和缓冲功能于一身, 不但解决了高空作业人员在登高、 返回、 转 移及高空固定作业的安全问题, 使高空作业全过程得到较好的保护; 还可以在意外发生时, 对作业人员进行缓冲作用, 大大降低下坠冲击 力对人体的伤害, 达到有效地保护作业人员的目的; 其次,本具有缓冲功能防坠落的设备具有结构简单且可多次重复 性使用,解决了目前防坠器在缓冲应用方面不能多次重复使用甚至仅 一次使用有效的问题;
其次, 由于采用滑轮导向滑行, 作业人员无论在上、 下移动, 还 是左、 右横向移动, 都能确保防坠落的设备在导轨中平稳自如滑行, 增加了高空作业人员攀爬时更大的安全性和工作便利性;
再次,由于采用卡座接触式锁紧制动使防坠器直接锁紧在导轨卡 座上, 即使在雨、 雪、 结冰天气及油污等恶劣环境作业时, 也能起到 良好的防坠保护,克服了现有防坠落的设备与导轨之间因摩擦系数的 范围不易确定所造成的防坠安全性低的问题;
另外, 由于导轨上防坠器的制动距离可设计为 12. 5CM, 制动距 离短, 产生冲击力小。
附图说明 图 1 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头旋出壳体底部且尚未开启缓冲装置时的主视图;
图 2 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头旋出壳体底部且尚未开启缓冲装置时的俯视图;
图 3 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头旋出壳体底部且尚未开启缓冲装置时的侧视图;
图 4是本发明具有缓冲功能防坠落设备具体实施例的剖视图; 图 5 是本发明具有缓冲功能防坠落设备具体实施例的未去除挡 片时的剖视图;
图 6 是本发明具有缓冲功能防坠落设备具体实施例的已去除挡 片时的剖视图;
图 7 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头自由收缩在壳体内且尚末开启缓冲装置时与 C 形卡座导轨 配合的剖视图;
图 8 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头伸出在壳体外锁紧 C 形导轨卡座且即将开启缓冲装置时的 剖视图;
图 9 是本发明具有缓冲功能防坠落设备具体实施例的转动卡块 上的卡头伸出在壳体外锁紧 C 形导轨卡座且开启缓冲装置时的剖视 图; 具体实施方式 下面结合附图详细阐述本发明实现防坠和缓冲功能的原理。
参考图 1〜图 6所示, 本发明的具体实施例 (如图 4) 包含下壳 体 (1)、 上壳体 (2)、 挡片 (4)、 滑动缓冲块 (5)、 缓冲弹簧 (6)、 转动卡块 (7)、 滑轮 (9)、 滑轮轴(10)、 中心轴 (11)、 销轴 (12) 及调节螺栓 (13), 其中所述的挡片 (4)、 滑动缓冲块 (5)、 转动卡 块(7)和缓冲弹簧(6)组成的防坠及缓冲装置贯穿所述的下壳体(1) 底部及上壳体(2)顶部, 其固定端置入所述的下壳体(1) 内, 并通 过所述的中心轴 (11) 与所述的下壳体 (1) 活动连接, 使所述的滑 动缓冲块(5)、 转动卡块(7) 和缓冲弹簧(6) 组成的防坠及缓冲装 置可绕所述的中心轴(11)在下壳体(1)和上壳体(2)的内部转动; 所述的下壳体 (1) 的上部开有通孔 (101), 在所述的滑动缓冲 块 (5) 上开有与通孔 (101) 对应的沉孔 (501), 该沉孔 (501) 与 通孔 ( 101)之间通过弹簧 (3)相连;而导轨 (8)上冲压出卡座 (801), 所述转动卡块(7) 上的卡头 (701)可以卡住卡座 (801), 使整个装 置自动锁住在导轨 (8) 上。
本发明的具体实施例在设计时采用了弹簧配重装置,把防坠落的 设备与弹簧(3) 的弹力进行配重, 在通常情况下, 弹簧(3) 受到由 滑动缓冲块 (5) 传递来的力的作用下被压缩, 使防坠落的设备的转 动卡块 (7) 的卡头 (701) 收缩在下壳体(1) 和上壳体(2) 内 (如 图 7), 作业人员在向上攀登时本防坠落的设备受到安全带的拉动沿 导轨自由滑行,当意外发生时,在失去安全带的拉动的瞬间,弹簧(3) 就会通过推动由挡片 (4)、 滑动缓冲块 (5)、 缓冲弹簧 (6) 和转动 卡块 (7) 组成的防坠及缓冲装置绕中心轴 (11) 转动, 使转动卡块
(7)的卡头(701)旋出下壳体(1)外,锁紧在导轨(8)的卡座(801) 上, 阻止防坠落设备的下坠, 首先实现防坠落的功能 (如图 8); 紧 接着由于滑动缓冲块 (5) 受到安全带下坠拉力的作用, 滑动缓冲块
(5) 上的导滑凸台 (502) 沿着导滑凹槽 (702) 滑动, 使滑动缓冲 块(5)顺着沉孔(703) 向下移动, 接触并压缩缓冲弹簧(6), 直至 把缓冲弹簧 (6) 完全压缩到静止, 在此过程中很大部分的下坠冲击 力将被缓冲弹簧 (6) 所吸收, 大大减少冲击力对人体的伤害, 实现 缓冲作用 (如图 9)。 以上所述仅是本发明的具体实施方式, 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

权 利 要 求
1、 一种具有缓冲功能的防坠落设备, 其特征在于, 包括: 下壳体(1)、 上壳体(2)、 挡片 (4)、 滑动缓冲块 (5)、 缓冲弹 簧 (6)、 转动卡块 (7)、 滑轮 (9)、 滑轮轴 (10)、 中心轴 (11)、 销 轴 12和调节螺栓(13), 其中所述的挡片 (4)、 滑动缓冲块(5)、 转 动卡块(7)和缓冲弹簧(6)组成的防坠及缓冲装置贯穿所述的下壳 体 (1) 底部及上壳体 (2) 顶部, 其固定端置入所述的下壳体 (1) 内, 并通过所述的中心轴 (11) 与所述的下壳体 (1) 活动连接, 使 所述的由挡片(4)、滑动缓冲块(5)、 转动卡块(7)和缓冲弹簧(6) 组成的防坠及缓冲装置可绕所述的中心轴 (11) 在下壳体 (1) 和上 壳体 (2) 的内部转动;
所述的下壳体 (1) 的上部开有通孔 (101), 在所述的滑动缓冲 块 (5) 上开有与通孔 (101) 对应的沉孔 (501), 该沉孔 (501) 与 通孔 ( 101)之间通过弹簧 (3)相连;而导轨 (8)上冲压出卡座 (801), 所述转动卡块(7) 上的卡头 (701) 卡住卡座 (801), 使整个装置自 动锁住在导轨 (8) 上;
所述的转动卡块 (7) 卡住在卡座 (801), 锁住在导轨 (8) 上, 滑动缓冲块 (5) 其上的导滑凸台 (501) 即沿着转动卡块 (7) 上的 导滑凹槽 (702) 滑动, 所述的滑动缓冲块 (5) 顺着沉孔 (703) 下 移、 压缩缓冲弹簧 (6)。
2、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 在所述的转动卡块(7)远离导轨 (8) 的一端, 开设有半封闭 的沉孔 (703), 且在沉孔 (703 ) 的内壁上开有导滑凹槽 (702)。
3、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 在所述的滑动缓冲块(5)靠近导轨(8) 的一端, 设计有与半 封闭的沉孔 (703) 相配合的圆柱状体, 且在圆柱状体的外壁上开设 有与导滑凹槽 (702) 相互配合的导滑凸台 (502)。
4、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 在所述的滑动缓冲块 (5) 与转动卡块 (7) 啮合装配成一体, 其前端设有挡片 (4), 沉孔 (703) 内置有缓冲专用弹簧 (6) 装置。
5、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 在所述的下壳体 (1 ) 的底部开有通孔 (102 ), 所述的转动卡 块 (7)靠近导轨 (8) —端的卡头 (701 ) 可穿过该通孔 (102)伸出 下壳体 ( 1 ) 夕卜。
6、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 所述的滑动缓冲块 (5 ) 受安全带拉动的一端开有贯穿滑动缓 冲块 (5) 的通孔 (503)。
7、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 所述的上壳体(2)的尾部设计有尾口 (103), 滑动缓冲块(5) 的滑动尾部 (504) 可沿尾口 (103) 贯穿出上壳体 (2) 夕卜。
8、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于, 所述的下壳体(1 ) 的后下部位与转动卡块(7)接触位置设计 有调节螺栓 (13)。
9、 根据权利要求 1所述的具有缓冲功能的防坠落设备, 其特征 在于,所述的下壳体(1 )的中部与导轨(8)接触位置设计有销轴(12 )。
10、根据权利要求 1-9任一项所述的具有缓冲功能的防坠落设备, 其 特征在于, 所述的导轨 (8) 为 C型卡座导轨。
PCT/CN2009/071214 2008-04-18 2009-04-10 一种具有缓冲功能的防坠落设备 WO2009127142A1 (zh)

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