WO2018040493A1 - 伸缩管缓冲导向结构 - Google Patents

伸缩管缓冲导向结构 Download PDF

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Publication number
WO2018040493A1
WO2018040493A1 PCT/CN2017/071690 CN2017071690W WO2018040493A1 WO 2018040493 A1 WO2018040493 A1 WO 2018040493A1 CN 2017071690 W CN2017071690 W CN 2017071690W WO 2018040493 A1 WO2018040493 A1 WO 2018040493A1
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WO
WIPO (PCT)
Prior art keywords
tube
buffer
inner tube
sheet
guiding structure
Prior art date
Application number
PCT/CN2017/071690
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English (en)
French (fr)
Inventor
张钊
Original Assignee
东莞威信运动用品有限公司
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 东莞威信运动用品有限公司 filed Critical 东莞威信运动用品有限公司
Priority to US16/328,932 priority Critical patent/US20190242187A1/en
Priority to GB1902638.4A priority patent/GB2567606B/en
Priority to DK17844804.9T priority patent/DK3508682T3/da
Priority to EP17844804.9A priority patent/EP3508682B1/en
Publication of WO2018040493A1 publication Critical patent/WO2018040493A1/zh

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Classifications

    • 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
    • E06C7/02—Extending means

Definitions

  • the present application relates to a telescopic ladder, and more particularly to a buffer guiding structure in a telescopic tube of a telescopic ladder.
  • the existing telescopic ladder includes a plurality of ladder columns and cross bars.
  • the plurality of ladder columns are telescopically combined, and then a locking mechanism is used to lock the two adjacent ladder columns, so that the ladder columns are expanded and locked.
  • a locking mechanism is used to lock the two adjacent ladder columns, so that the ladder columns are expanded and locked.
  • the ladder column in the previous section may be subjected to gravity. Will slide down in an instant. If the hand is placed on the crossbar of the next ladder column or if the hand does not leave the crossbar of the next ladder post in time, the finger will be pinched; therefore, the existing telescopic
  • the purpose of the present application is to provide a telescopic tube buffer guiding structure with a simple structure, a good cushioning effect and an anti-pinch.
  • the telescopic tube buffer guiding structure includes an inner tube and an outer tube, the inner tube is slidably sleeved in the outer tube, and the telescopic tube buffer guiding structure further includes a buffer sheet, and the buffering a sheet is disposed at an end surface of one end of the inner tube, an edge of the buffer sheet is matched with an outer edge of the inner tube, and an edge of the buffer sheet is in contact with an inner side wall of the outer tube to enable the inner portion
  • the cushion sheet is turned downward to reduce the frictional force.
  • the cushion sheet is kept in sliding contact with the inner side wall of the outer tube to achieve cushioning.
  • the present application provides a buffer sheet on the end surface of one end of the inner tube, the edge of the buffer sheet can be made to interfere with the inner side wall of the outer tube, reaching the inner tube Extend
  • the buffer sheet is kept in sliding contact with the inner side wall of the outer tube to achieve buffering, and the structure is simple, and the extension ladder is The ladder foot cushioning effect is good, preventing the ladder from being clamped when it is too fast.
  • the telescopic tube buffer guiding structure further comprises a guiding sleeve fixed to an end surface of the inner tube, and the buffer sheet is disposed on the guiding sleeve.
  • the guide sleeve can be arranged to limit the buffer sheet on the one hand and to guide the inner tube on the other hand.
  • the buffer sheet is fixedly connected to the guide sleeve by a screw.
  • the buffer sheet is connected to the guide sleeve by screws, so that the buffer sheet can be fixed, and the edge of the buffer sheet can be turned down or not turned, so that the inner tube can be extended or buffered.
  • the guide sleeve has a mounting position, and the buffer sheet is placed in the mounting position.
  • the guiding sleeve is provided with an ear portion, the ear portion has an engaging portion, and the inner tube is provided with a through hole, and the ear portion extends into the inner tube to engage the engaging portion. In the through hole. Providing the ear portion allows the guide sleeve to be quickly fixed to the inner tube for easy assembly.
  • the buffer sheet has a fan-shaped structure, and a plurality of the buffer sheets are distributed around a central axis of the inner tube.
  • the buffer sheet is a silica gel sheet.
  • 1 is a structural view of an extension ladder of the present application.
  • FIG. 2 is a structural view of a bellows buffer guiding structure of the present application.
  • Figure 3 is an exploded view of the bellows buffer guiding structure of the present application.
  • the telescopic tube buffer guiding structure 100 of the present application includes an inner tube 1 , an outer tube 2 , a buffer sheet 3 and a guiding sleeve 4 , and the inner tube 1 is slidably sleeved in the outer tube 2 .
  • the guide sleeve 4 is fixed to the end surface of the inner tube 1, and the guide sleeve 4 is arranged to limit the buffer sheet 3 on the one hand.
  • the edge of the cushion sheet 3 matches the outer edge of the inner tube 1 and the The edge of the cushion sheet 3 is in contact with the inner side wall of the outer tube 2, so that when the inner tube 1 is extended, the cushion sheet 3 is turned downward to reduce the frictional force.
  • the cushion sheet 3 is retracted. It is kept in sliding contact with the inner side wall of the outer tube 2 to achieve cushioning.
  • the buffer sheet 3 is fixedly coupled to the guide sleeve 4 by a screw 5.
  • the buffer sheet 3 is connected to the guide sleeve 4 by means of a screw 5, so that the buffer sheet 3 can be fixed, and the edge of the cushion sheet 3 can be turned down or not turned over, so that the inner tube 1 can be extended. Or implement buffering.
  • the guide sleeve 4 has a mounting position 41 in which the cushion sheet 3 is placed.
  • the guide sleeve 4 is provided with an ear portion 42 having a latching portion 43.
  • the inner tube 1 is provided with a through hole 11 extending into the inner tube 1 so as to The engaging portion 43 is engaged with the through hole 11 .
  • the provision of the ear portion 42 allows the guide sleeve 4 to be quickly fixed to the inner tube 1 for easy assembly.
  • the buffer sheet 3 has a fan-shaped structure, and the number of the buffer sheets 3 may be plural, and a plurality of the buffer sheets 3 are distributed around a central axis of the inner tube 1. There are two buffer sheets 3 in this embodiment.
  • the buffer sheet 3 is a silicone sheet.
  • the present application provides the buffer sheet 3 on the end surface of one end of the inner tube 1, the edge of the cushion sheet 3 can be made to interfere with the inner side wall of the outer tube 2,
  • the buffer sheet 3 is turned downward to reduce the frictional force.
  • the buffer sheet 3 is kept sliding against the inner side wall of the outer tube 2 to realize
  • the purpose of the buffer is simple in structure, and the buffering effect on the ladder foot of the extension ladder is good, and the hand is prevented from being clamped too quickly when the ladder is contracted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

一种伸缩管缓冲导向结构（100），包括内管（1）、外管（2）及缓冲片（3），内管（1）滑动地套接于外管（2）内，缓冲片（3）设置于内管（1）的一端的端面，缓冲片（3）的边缘与内管（1）的外侧边缘匹配且缓冲片（3）的边缘与外管（2）的内侧壁抵触，以使内管（1）在伸出时，缓冲片（3）向下翻减少摩擦力，在缩入时，缓冲片（3）保持与外管（2）的内侧壁滑动抵触，实现缓冲。伸缩管缓冲导向结构（100）具有结构简单，缓冲效果好，防夹手的优点。

Description

伸缩管缓冲导向结构 技术领域
本申请涉及一种伸缩梯子，尤其涉及一种伸缩梯子的伸缩管内的缓冲导向结构。
背景技术
现有的伸缩梯子包括若干梯柱及横杆，通过多节梯柱伸缩组合，再利用一锁定机构将两相邻的梯柱锁定，从而使梯柱实现展开锁定状态。当需要收折时，只需要解锁锁定机构，便可使上一节梯柱缩入下一节梯柱内；然而，在解锁锁定机构时，由于上一节的梯柱受到重力的作用，可能会瞬间向下滑动，若此时手部放在下一节梯柱的横杆上或者没有及时使手部离开下一节梯柱的横杆时，就会夹伤手指；因此，现有的伸缩梯子的安全性及人性化使用上存在不足。
申请内容
本申请的目的在于提供一种结构简单，缓冲效果好，防夹手的伸缩管缓冲导向结构。
为了实现上述目的，本申请提供的伸缩管缓冲导向结构包括内管及外管，所述内管滑动地套接于所述外管内，所述伸缩管缓冲导向结构还包括缓冲片，所述缓冲片设置于所述内管的一端的端面，所述缓冲片的边缘与所述内管的外侧边缘的匹配且所述缓冲片的边缘与所述外管的内侧壁抵触，以使所述内管在伸出时，所述缓冲片向下翻减少摩擦力，在缩入时，所述缓冲片保持于与所述外管的内侧壁滑动抵触，实现缓冲。
与现有技术相比，由于本申请通过在所述内管的一端的端面设置缓冲片，从而可使所述缓冲片的边缘能与所述外管的内侧壁抵触，达到在所述内管伸出 时，所述缓冲片向下翻减少摩擦力，在所述内管缩入时，所述缓冲片保持于与所述外管的内侧壁滑动抵触实现缓冲的目的，其结构简单，对伸缩梯的梯脚缓冲效果好，防止梯子收缩时因过快而夹手。
较佳地，所述伸缩管缓冲导向结构还包括导向套，所述导向套固定于所述内管的端面，所述缓冲片设置于所述导向套上。设置所述导向套一方面可以对所述缓冲片进行限位，另一方面可以对所述内管进行导向。
具体地，所述缓冲片通过一螺丝固定连接于所述导向套。通过螺丝将所述缓冲片与所述导向套连接，既可以使所述缓冲片固定，又可以使所述缓冲片的边缘能下翻或不翻，方便内管伸出或实现缓冲。
具体地，所述导向套具有安装位，所述缓冲片置于所述安装位内。
具体地，所述导向套设有耳部，所述耳部具有卡合部，所述内管开设有通孔，所述耳部伸入所述内管内，以使所述卡合部卡合于所述通孔。设置所述耳部可以使所述导向套快速地固定于所述内管，方便组装。
较佳地，所述缓冲片呈扇形结构，多个所述缓冲片围绕所述内管的中心轴分布。
较佳地，所述缓冲片为硅胶片。
附图说明
图1是本申请伸缩梯的结构图。
图2是本申请伸缩管缓冲导向结构的结构图。
图3是本申请伸缩管缓冲导向结构的分解图。
具体实施方式
为详细说明本申请的技术内容、构造特征、所实现的效果，以下结合实施方式并配合附图详予说明。
如图1、图2所示，本申请伸缩管缓冲导向结构100包括内管1、外管2、缓冲片3及导向套4，所述内管1滑动地套接于所述外管2内，所述导向套4固定于所述内管1的端面，设置所述导向套4一方面可以对所述缓冲片3进行限 位，另一方面可以对所述内管1进行导向；所述缓冲片3设置于所述导向套4上，所述缓冲片3的边缘与所述内管1的外侧边缘的匹配且所述缓冲片3的边缘与所述外管2的内侧壁抵触，以使所述内管1在伸出时，所述缓冲片3向下翻减少摩擦力，在缩入时，所述缓冲片3保持于与所述外管2的内侧壁滑动抵触，实现缓冲。
具体地，所述缓冲片3通过一螺丝5固定连接于所述导向套4。通过螺丝5将所述缓冲片3与所述导向套4连接，既可以使所述缓冲片3固定，又可以使所述缓冲片3的边缘能下翻或不翻，方便内管1伸出或实现缓冲。所述导向套4具有安装位41，所述缓冲片3置于所述安装位41内。所述导向套4设有耳部42，所述耳部42具有卡合部43，所述内管1开设有通孔11，所述耳部42伸入所述内管1内，以使所述卡合部43卡合于所述通孔11。设置所述耳部42可以使所述导向套4快速地固定于所述内管1，方便组装。
所述缓冲片3呈扇形结构，所述缓冲片3的数量可为多个，多个所述缓冲片3围绕所述内管1的中心轴分布。本实施例所述缓冲片3为2个。所述缓冲片3为硅胶片。
与现有技术相比，由于本申请通过在所述内管1的一端的端面设置缓冲片3，从而可使所述缓冲片3的边缘能与所述外管2的内侧壁抵触，达到在所述内管1伸出时，所述缓冲片3向下翻减少摩擦力，在所述内管1缩入时，所述缓冲片3保持于与所述外管2的内侧壁滑动抵触实现缓冲的目的，其结构简单，对伸缩梯的梯脚缓冲效果好，防止梯子收缩时因过快而夹手。
以上所揭露的仅为本申请的较佳实例而已，当然不能以此来限定本申请之权利范围，因此依本申请申请专利范围所作的等同变化，仍属于本申请所涵盖的范围。

Claims (7)

  1. 一种伸缩管缓冲导向结构，包括内管及外管，所述内管滑动地套接于所述外管内，其特征在于：所述伸缩管缓冲导向结构还包括缓冲片，所述缓冲片设置于所述内管的一端的端面，所述缓冲片的边缘与所述内管的外侧边缘的匹配且所述缓冲片的边缘与所述外管的内侧壁抵触，以使所述内管在伸出时，所述缓冲片向下翻减少摩擦力，在缩入时，所述缓冲片保持于与所述外管的内侧壁滑动抵触，实现缓冲。
  2. 如权利要求1所述的伸缩管缓冲导向结构，其特征在于：所述伸缩管缓冲导向结构还包括导向套，所述导向套固定于所述内管的端面，所述缓冲片设置于所述导向套上。
  3. 如权利要求2所述的伸缩管缓冲导向结构，其特征在于：所述缓冲片通过一螺丝固定连接于所述导向套。
  4. 如权利要求2所述的伸缩管缓冲导向结构，其特征在于：所述导向套具有安装位，所述缓冲片置于所述安装位内。
  5. 如权利要求2所述的伸缩管缓冲导向结构，其特征在于：所述导向套设有耳部，所述耳部具有卡合部，所述内管开设有通孔，所述耳部伸入所述内管内，以使所述卡合部卡合于所述通孔。
  6. 如权利要求1所述的伸缩管缓冲导向结构，其特征在于：所述缓冲片呈扇形结构，多个所述缓冲片围绕所述内管的中心轴分布。
  7. 如权利要求1至6所述的伸缩管缓冲导向结构，其特征在于：所述缓冲片为硅胶片。
PCT/CN2017/071690 2016-08-31 2017-01-19 伸缩管缓冲导向结构 WO2018040493A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/328,932 US20190242187A1 (en) 2016-08-31 2017-01-19 Shock-absorbing guiding structure for extension tube
GB1902638.4A GB2567606B (en) 2016-08-31 2017-01-19 Buffer guiding structure for extension tube
DK17844804.9T DK3508682T3 (da) 2016-08-31 2017-01-19 Stødabsorberende føringsstruktur til forlængelsesrør
EP17844804.9A EP3508682B1 (en) 2016-08-31 2017-01-19 Shock-absorbing guiding structure for extension tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201621017313.9 2016-08-31
CN201621017313.9U CN206129129U (zh) 2016-08-31 2016-08-31 伸缩管缓冲导向结构

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Publication Number Publication Date
WO2018040493A1 true WO2018040493A1 (zh) 2018-03-08

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US (1) US20190242187A1 (zh)
EP (1) EP3508682B1 (zh)
CN (1) CN206129129U (zh)
DK (1) DK3508682T3 (zh)
GB (1) GB2567606B (zh)
WO (1) WO2018040493A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207033331U (zh) * 2017-07-10 2018-02-23 东莞威信运动用品有限公司 伸缩管缓冲结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590739A (en) * 1994-11-01 1997-01-07 High; Dewayne A. Adjustable extension stepladder
CN202266183U (zh) * 2011-03-11 2012-06-06 尔高拜奥尼克有限公司 可伸缩的梯子
CN202360017U (zh) * 2011-11-14 2012-08-01 袁士风 伸缩梯底架
CN205400574U (zh) * 2016-03-29 2016-07-27 宁波市联凯化学有限公司 一种伸缩梯用安全连接锁定装置
CN205422500U (zh) * 2015-11-03 2016-08-03 林永忠 伸缩梯

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057995A1 (en) * 2007-11-02 2009-05-07 Lampe Holding B.V. A telescopic ladder assembly
DE202012101024U1 (de) * 2012-03-22 2012-05-02 Fengruo Ying Eine verbesserte Vorrichtung zur Verhinderung des Einziehens einer einziehbaren bzw. ausziehbaren Leiter
CN204436248U (zh) * 2015-02-10 2015-07-01 陈肖玲 一种带缓冲功能的伸缩梯子

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590739A (en) * 1994-11-01 1997-01-07 High; Dewayne A. Adjustable extension stepladder
CN202266183U (zh) * 2011-03-11 2012-06-06 尔高拜奥尼克有限公司 可伸缩的梯子
CN202360017U (zh) * 2011-11-14 2012-08-01 袁士风 伸缩梯底架
CN205422500U (zh) * 2015-11-03 2016-08-03 林永忠 伸缩梯
CN205400574U (zh) * 2016-03-29 2016-07-27 宁波市联凯化学有限公司 一种伸缩梯用安全连接锁定装置

Also Published As

Publication number Publication date
EP3508682A1 (en) 2019-07-10
EP3508682A4 (en) 2020-04-15
CN206129129U (zh) 2017-04-26
DK3508682T3 (da) 2022-03-28
EP3508682B1 (en) 2022-02-09
GB2567606B (en) 2021-12-29
GB201902638D0 (en) 2019-04-10
GB2567606A (en) 2019-04-17
US20190242187A1 (en) 2019-08-08

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