WO2011113183A1 - 一种用于伸缩梯的连接套 - Google Patents

一种用于伸缩梯的连接套 Download PDF

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Publication number
WO2011113183A1
WO2011113183A1 PCT/CN2010/000909 CN2010000909W WO2011113183A1 WO 2011113183 A1 WO2011113183 A1 WO 2011113183A1 CN 2010000909 W CN2010000909 W CN 2010000909W WO 2011113183 A1 WO2011113183 A1 WO 2011113183A1
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WO
WIPO (PCT)
Prior art keywords
rotating
socket
seat
rotating plate
extension ladder
Prior art date
Application number
PCT/CN2010/000909
Other languages
English (en)
French (fr)
Inventor
王万兴
Original Assignee
宁波兴富工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波兴富工具有限公司 filed Critical 宁波兴富工具有限公司
Priority to EP10847652.4A priority Critical patent/EP2549054B1/en
Publication of WO2011113183A1 publication Critical patent/WO2011113183A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/086—Connections between rungs or treads and longitudinal members with a connecting piece inserted in a hollow rung
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible ladders

Definitions

  • the invention relates to the technical field of an extension ladder, and in particular to a connection sleeve for an extension ladder. Background technique
  • Ladders have been used extensively in the construction, renovation, advertising, and home residential sectors. At present, the most popular on the market is a telescopic ladder that can be stretched up and down. When it is not in use, it can be shortened and easily stored and transported.
  • the prior patent "A Retractable Ladder" of the patent number ZL200420091638.2 discloses such an extension ladder, which comprises a crossbar and a vertical rod, and the vertical rod is a number of sleeves.
  • a plurality of crossbars are disposed between the opposite two vertical rods, and retractable axle pins are respectively disposed at two ends of each crossbar, and the axle pins are respectively opened in the sleeve
  • the corresponding positioning jacks are adapted to have an annular connecting sleeve at the upper end of each of the sleeves, and the connecting sleeve is connected with the cross bar.
  • the technical problem to be solved by the present invention is to provide a connecting sleeve for an extension ladder for the current state of the art, which has a fixed spacing between the upper and lower rails, and effectively prevents the crossbar from being pressed to the fingers when the telescopic ladder is closed. And when the product is packaged and transported, the overall height is not too high, which is very suitable for practical use.
  • the connecting sleeve for the extension ladder comprises a connecting ring and a connecting block which are integrally connected, and is characterized in that: on the surface of the joint between the connecting ring and the connecting block Providing a rotating seat and a rotating plate;
  • the rotating seat is fixed with respect to the connecting ring, the center of the rotating seat is provided with a socket, and the two sides of the socket respectively extend to the center to have a rotating shaft;
  • the rotating plate is substantially T-shaped, the vertical portion thereof is inserted into the socket of the rotating seat, the lateral portion thereof is located above the rotating seat, and the two rotating shafts on the rotating seat are laterally inserted into the shaft hole of the vertical portion;
  • a torsion spring is disposed in the shaft hole of the vertical portion of the rotating plate and outside the rotating shaft, and one end of the torsion spring is connected to the inner side of the shaft hole of the rotating plate, and the other end is connected with the rotating seat, so that the lateral portion of the rotating plate can Rotating in the direction of the connecting block centering on the rotating shaft and always having a tendency to rise above the rotating seat.
  • the connecting ring is sleeved outside the sleeve of the corresponding vertical rod and connected to the vertical rod, and the end of the connecting block is inserted into the cross rod
  • the height of the rotating plate is greater than the thickness of the finger.
  • the swivel can be formed by splicing the left and right transfer seats, and the bottom of the transfer seat is inserted through the protrusions to the joint between the connection ring and the connection block.
  • the lateral portion of the rotating plate may have a trapezoidal shape, such that the top portion of the lateral portion has a horizontal surface to facilitate the abutment of the bottom of the upper crossbar, and the thickness of the rotating plate is adapted to the thickness of the rotating seat, so that the rotating plate When erected, it is integral with the rotating seat, and the surface is neat.
  • the surface of the rotating plate is substantially flush with the top surface of the rotating seat.
  • the overall height of the rotating plate is preferably 2 cm or more.
  • the invention has the advantages that: by the rotation of the rotating seat, the rotating plate and the torsion spring therebetween, the lateral portion of the rotating plate can be centered on the rotating shaft, and the rotating seat and the connecting sleeve itself rotate.
  • the extension ladder since the rotating plate always stands up relative to the rotating seat, the upper and lower horizontal bars are separated by the rotating plate, and the spacing can accommodate the fingers, effectively preventing the extension ladder from being folded, the upper horizontal
  • the rod is pressed to the finger on the lower crossbar, and when the telescopic ladder package is transported, the lateral portion of the rotating plate can be folded down on one side of the rotating seat, so that there is only the height of the rotating seat between the upper and lower crossbars.
  • the spacing when the product is packaged and transported, the overall height is not too high, which is very suitable for practical use.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a rotating plate in a folded state according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view of an embodiment of the present invention. detailed description
  • the extension ladder to which the embodiment of the invention is applied includes two opposite vertical rods and a plurality of cross bars fixed between the two vertical rods, and the vertical rod comprises two telescopic inner and outer sleeves sleeved, A cross bar is fixed between the two opposite sleeves of the same section, and the two ends of each crossbar are relatively fixed by the connecting sleeve of the embodiment of the invention and the sleeve of the corresponding vertical rod;
  • the connecting sleeve for the extension ladder comprises an integral connecting ring 1 and a connecting block 2, which are arranged on the surface of the joint between the connecting ring 1 and the connecting block 2. a rotating seat 3 and a rotating plate 4;
  • the connecting ring 1 is sleeved and fixed with the corresponding vertical rod, and the connecting block 2 is inserted into the end of the corresponding cross bar;
  • the rotating base 3 is formed by splicing the left and right two rotating seats 3a, and the rotating base 3a is inserted into the side of the connecting ring 1 through the bottom protruding post 33, so as to be fixed relative to the connecting ring 1, and the socket 3 has a socket in the center. 31, and the two sides of the socket 31 respectively extend toward the center with a rotating shaft 32;
  • the rotating plate 4 is substantially T-shaped and has an overall height of 3 cm.
  • the vertical portion 41 is inserted into the socket 31 of the swivel 3, and the lateral portion 42 is trapezoidal and located above the rotating base 3, and the thickness of the rotating plate 4 is It is basically the same thickness as the transposition 3; ⁇
  • the two rotary shafts 32 on the rotary base 3 are laterally inserted into the shaft holes 41a of the vertical portion 41, so that the lateral portion 42 of the rotary plate 4 can be rotated about the rotary shaft 32, and the lateral portion 42 of the rotary plate 4 is rotated.
  • a torsion spring 5 is disposed in the shaft hole 41a of the vertical portion 41 of the rotating plate 4 and outside the rotating shaft 32.
  • One end 51 of the torsion spring 5 is connected to the inner side of the shaft hole 41a of the rotating plate 4, and the other end 52 and the rotating seat are provided.
  • the lateral portion 41 of the rotating plate 4 can be rotated in the direction of the connecting block 2 around the rotating shaft 32 and always has a tendency to rise above the rotating base 3, that is, in the case where no external force is applied, the rotating plate
  • the lateral portion 41 of the 4 is always facing upward, and in practice, the upper and lower rails of the extension ladder are separated from the entire rotating plate 4 and the rotating base 3, and only the lateral portion 41 of the rotating plate 4 can be applied with an external force. Folded toward the connecting block 2 so that the upper and lower rails are separated from each other only by the swivel 3.

Description

一种用于伸缩梯的连接套
技术领域
本发明涉及伸缩梯的技术领域， 尤其涉及一种用于伸缩梯的连接套。 背景技术
梯子在建筑、 装修、广告、家庭住宅领域的使用已经相当广泛。 目前， 市场上较受 欢迎的是可上下伸缩的伸缩梯， 它在不使用时， 可以缩短而易于收纳、 搬运。 如专利号 为 ZL200420091638.2(公告号为 CN2716479Y)的在先专利《一种可伸缩的梯子》，就公开 了这么一种伸缩梯， 它包括横杆和竖杆， 竖杆为数节套管可伸缩地套接而成， 多根横杆 置于相对的二竖杆之间， 在每根横杆的两端分别设置有可伸缩的轴销， 该轴销分别与开 在套管中与其相对应的定位插孔相适配， 在每节套管上端套置有环形连接套， 且该连接 套与横杆连接在一起。 这种伸缩梯在使用时， 由于上下横杆之间没有固定的空隙， 而使 用者的双手一般就扶在某一横杆上， 在收拢伸缩梯时， 上方的横杆会压到搁置在下方横 杆上的手指， 存在不安全的隐患。 发明内容
本发明所要解决的技术问题是针对现有技术的现状而提供一种用于伸缩梯的连接 套， 它使上下横杆之间具有固定的间距， 有效防止伸缩梯收拢时， 横杆压到手指， 并且 产品包装运输时， 整体高度又不会过高， 非常适于实际使用。
本发明解决上述技术问题所采用的技术方案为：该用于伸缩梯的连接套，包括连为 一体的连接环和连接块， 其特征在于： 在连接环与连接块之间的连接处表面上设置有一 转座和转动板；
其中， 所述转座相对连接环固定， 转座中央开有插口， 并且， 插口的两侧边分别向 中央延伸有一转轴；
所述转动板基本呈 T型， 其竖直部分插入到转座的插口内， 其横向部分位于转座 之上， 且转座上的两个转轴横向地插入到竖直部分的轴孔内；
并且，所述转动板竖直部分的轴孔内、转轴外设置有一扭簧， 该扭簧的一端与转动 板的轴孔内侧相连、 另一端与转座相连， 而使转动板的横向部分能以转轴为中心向连接 块方向转动且始终具有向转座上方立起的趋势。
上述的连接环套设在相对应竖杆的套管外而与竖杆相连，连接块末端插入到横杆内
- 1 一 确认本 而与横杆相连。
为进一步保证转座和转动板的设置能有效保护使用者的双手，所述转动板的高度要 大于手指的厚度。
为便于部件装配，所述转座可以由左右两个分转座拼接而成，分转座的底部通过凸 柱而插设到连接环与连接块之间的连接处上。
作为进一步改进， 所述转动板的横向部分可以呈梯形， 如此， 横向部分的顶部具有 水平表面而便于上方横杆底部的抵靠， 转动板的厚度与转座的厚度相适应， 如此， 转动 板竖立时， 其与转座构成一整体， 表面整洁， 转动板的横向部分折倒在转座一侧后， 转 动板的表面基本与转座的顶部表面齐平。 、 为确保转动板在竖起时能保护手指，所述转动板的整体高度以大于等于 2CM为佳。 与现有技术相比，本发明的优点在于：通过转座、转动板以及两者之间扭簧的设置， 使转动板的横向部分能以转轴为中心， 相对转座以及连接套本身转动， 在伸缩梯正常使 用时， 由于转动板始终相对转座向上立起， 上下横杆之间由于转动板来相隔而具有固定 的间距， 这个间距可以容纳手指， 有效防止伸缩梯收拢时， 上方的横杆压到位于下方横 杆上的手指， 并且， 在伸缩梯包装运输时， 可以将转动板的横向部分折倒、 位于转座的 一侧， 如此， 上下横杆之间只有转座的高度这个间距， 使产品包装运输时， 整体高度又 不会过高， 非常适于实际使用。 附图说明
图 1为本发明实施例的结构示意图；
图 2为本发明实施例在转动板折倒状态的结构示意图；
图 3为本发明实施例的立体分解图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
应用有本发明实施例的伸缩梯，包括两根相对设置的竖杆和固定在两根竖杆之间的 多根横杆， 竖杆包括二节可伸缩的内外套管套接而成， 在同节的二根相对套管之间固定 有一根横杆， 并且， 每一横杆的两端通过本发明实施例的连接套与对应竖杆的套管相对 固定；
如图 1、 图 2和图 3所示， 该用于伸缩梯的连接套， 包括连为一体的连接环 1和连 接块 2， 在连接环 1与连接块 2之间的连接处表面上设置有一转座 3和转动板 4;
其中，连接环 1与相对应竖杆的套管套设固定，连接块 2插设到相对应横杆的端部 内； 所述转座 3由左右两个分转座 3a拼接而成， 分转座 3a通过底部的凸柱 33插设到 连接环 1一侧， 从而相对连接环 1固定， 转座 3中央开有插口 31， 并且， 插口 31的两 侧边分别向中央延伸有一转轴 32;
所述转动板 4基本呈 T型，其整体高度为 3CM，其竖直部分 41插入到转座 3的插 口 31内， 其横向部分 42呈梯形且位于转座 3之上， 转动板 4的厚度与转座 3的厚度基 本相同； ■
转座 3上的两个转轴 32横向地插入到竖直部分 41的轴孔 41a内， 而使该转动板 4 的横向部分 42能绕该转轴 32转动，而使转动板 4的横向部分 42转动到转座 2的一侧， 也即， 相对连接块 2折倒；
并且， 所述转动板 4竖直部分 41的轴孔 41a内、 转轴 32外设置有一扭簧 5， 该扭 簧 5的一端 51与转动板 4的轴孔 41a内侧相连、 另一端 52与转座 3相连， 而使转动板 4的横向部分 41能以转轴 32为中心向连接块 2方向转动且始终具有向转座 3上方立起 的趋势， 也即， 在无外力施加的情况下， 转动板 4的横向部分 41始终朝上， 在实际应 用时， 使伸缩梯的上下横杆之间由整个转动板 4以及转座 3相隔， 只有转动板 4的横向 部分 41在施加外力的情况下， 才能朝向连接块 2折倒， 使上下横杆之间只由该转座 3 相隔。

Claims

权 利 要 求
1、一种用于伸缩梯的连接套，包括连为一体的连接环 (1)和连接块 (2),其特征在于： 在连接环 (1)与连接块 (2)之间的连接处表面上设置有一转座 (3)和转动板 (4);
其中， 所述转座 (3)相对连接环 (1)固定， 转座 (3)中央开有插口 (31)， 并且， 插口 (31) 的两侧边分别向中央延伸有一转轴 (32；);
所述转动板 (4)基本呈 T型， 其竖直部分 (41)插入到转座 (3)的插口 (31)内， 其横向部 分 (42)位于转座 (3)之上， 且转座 (3)上的两个转轴 (32)横向地插入到竖直部分 (41)的轴孔 (41a)内；
并且， 所述转动板 (4)竖直部分 (41)的轴孔 (41a)内、 转轴 (32)外设置有一扭簧 (5)， 该 扭簧 (5)的一端 (51)与转动板 (4)的轴孔 (41a)内侧相连、 另一端 (52)与转座 (3)相连， 而使转 动板 (4)的横向部分 (41)能以转轴为中心向连接块 (2)方向转动且始终具有向转座 (3)上方 立起的趋势。
2、 根据权利要求 1所述的用于伸缩梯的连接套， 其特征在于： 所述转座 (3)由左右 两个分转座 (3a)拼接而成，分转座 (3a)通过底部的凸柱 (33)而插设到连接环 (1)与连接块 (2) 之间的连接处上。
3、 根据权利要求 1或 2所述的用于伸缩梯的连接套， 其特征在于： 所述转动板 (4) 的厚度与转座 (3)的厚度相适应。
4、 根据权利要求 1或 2所述的用于伸缩梯的连接套， 其特征在于： 所述转动板 (4) 的整体高度大于等于 2CM。
PCT/CN2010/000909 2010-03-17 2010-06-22 一种用于伸缩梯的连接套 WO2011113183A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10847652.4A EP2549054B1 (en) 2010-03-17 2010-06-22 Connecting sleeve for extension ladder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201010127269 CN101798902B (zh) 2010-03-17 2010-03-17 一种用于伸缩梯的连接套
CN201010127269.8 2010-03-17

Publications (1)

Publication Number Publication Date
WO2011113183A1 true WO2011113183A1 (zh) 2011-09-22

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203186A (en) * 1987-03-28 1988-10-12 James Brotherton Ladder stabilizer and tensioner
CN2571986Y (zh) * 2002-09-25 2003-09-10 王国华 一种伸缩梯
US20050139424A1 (en) * 2002-08-02 2005-06-30 Core Distribution, Inc. Extending ladder and associated manufacturing methods
CN2716479Y (zh) 2004-02-06 2005-08-10 王万兴 一种可伸缩的梯子
CN2804355Y (zh) * 2005-06-24 2006-08-09 杨洪建 一种伸缩梯
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
CN201301661Y (zh) * 2008-01-31 2009-09-02 沈孔南 一种伸缩梯

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Publication number Priority date Publication date Assignee Title
JP3542645B2 (ja) * 1994-09-20 2004-07-14 隆 寺本 梯子
DE19653003C2 (de) * 1996-12-19 1999-05-27 Giesserei & Montage Gmbh Zusammenschiebbare Leiter
JP4580346B2 (ja) * 2006-01-13 2010-11-10 アルインコ株式会社 伸縮梯子
CN201650097U (zh) * 2010-03-17 2010-11-24 王万兴 一种用于伸缩梯的连接套

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203186A (en) * 1987-03-28 1988-10-12 James Brotherton Ladder stabilizer and tensioner
US20050139424A1 (en) * 2002-08-02 2005-06-30 Core Distribution, Inc. Extending ladder and associated manufacturing methods
CN2571986Y (zh) * 2002-09-25 2003-09-10 王国华 一种伸缩梯
CN2716479Y (zh) 2004-02-06 2005-08-10 王万兴 一种可伸缩的梯子
CN2804355Y (zh) * 2005-06-24 2006-08-09 杨洪建 一种伸缩梯
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
CN201301661Y (zh) * 2008-01-31 2009-09-02 沈孔南 一种伸缩梯

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2549054A4 *

Also Published As

Publication number Publication date
CN101798902A (zh) 2010-08-11
EP2549054A4 (en) 2015-01-07
EP2549054B1 (en) 2015-11-04
EP2549054A1 (en) 2013-01-23
CN101798902B (zh) 2013-02-06

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