WO2019011082A1 - 伸缩管缓冲结构 - Google Patents

伸缩管缓冲结构 Download PDF

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Publication number
WO2019011082A1
WO2019011082A1 PCT/CN2018/090210 CN2018090210W WO2019011082A1 WO 2019011082 A1 WO2019011082 A1 WO 2019011082A1 CN 2018090210 W CN2018090210 W CN 2018090210W WO 2019011082 A1 WO2019011082 A1 WO 2019011082A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
sheet
outer tube
inner tube
buffer
Prior art date
Application number
PCT/CN2018/090210
Other languages
English (en)
French (fr)
Chinese (zh)
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 DK18832839.7T priority Critical patent/DK3653832T3/da
Priority to EP18832839.7A priority patent/EP3653832B1/de
Publication of WO2019011082A1 publication Critical patent/WO2019011082A1/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

Definitions

  • the present application relates to a telescopic ladder, and more particularly to a telescopic tube cushioning structure.
  • the existing telescopic ladder includes a plurality of ladder columns and cross bars, and the telescopic function of the ladder is realized by sliding and sliding the plurality of ladder columns to each other.
  • a ladder column to gradually expand the entire ladder downward; when not in use, first push the lowermost ladder column upwards, so that the previous ladder column is retracted into the next ladder column, in this order Shrink upwards to retract the entire ladder.
  • the purpose of the present application is to provide a telescopic tube buffer structure that has a simple structure, a good cushioning effect, and improved safety in use.
  • the telescopic tube buffer structure provided by the present application includes an inner tube and an outer tube.
  • the inner tube is slidably sleeved in the outer tube, and the telescopic tube buffer structure further includes a buffer sheet and a retaining piece.
  • the retaining plate is fixed to one end of the inner tube, and a receiving groove is formed between the blocking piece and the end surface of the inner tube, and the buffer sheet is disposed on the retaining piece and is located adjacent to the receiving piece.
  • the edge of the buffer sheet is in contact with the inner side wall of the outer tube, so that the edge of the buffer sheet is turned into the receiving groove when the inner tube is retracted into the outer tube
  • the edge of the cushion sheet is slidably pressed against the inner side wall of the outer tube to achieve cushioning.
  • the present application forms a receiving groove between the end surface of the inner tube and the end surface of the inner tube by providing a shifting piece at one end of the inner tube, and in the blocking
  • a buffer sheet is disposed on a side of the bit sheet adjacent to the accommodating groove, so that an edge of the buffer sheet can be in contact with an inner side wall of the outer tube, so that the buffer sheet is turned up when the telescopic ladder is contracted.
  • the frictional force is reduced, and when the ladder is deployed, the cushioning sheet is blocked by the retaining piece to maintain the sliding contact with the inner side wall of the outer tube, thereby achieving buffering during deployment, and the structure is simple and buffered.
  • the effect is good, and the safety problem that the operator's body is inclined when the ladder column is slid out too quickly when the telescopic ladder is deployed is prevented, and the safety of the use of the telescopic ladder is effectively improved.
  • the telescopic tube buffer structure further comprises a guiding sleeve, and the guiding sleeve is fixed on an end surface of the inner tube.
  • the guide sleeve can guide the inner tube when the inner tube slides relative to the outer tube.
  • the buffer sheet is a silica gel sheet.
  • the silicone material has elastic deformation and a large friction coefficient, which can increase the friction and improve the buffering effect when used.
  • the receiving groove surrounds the inner tube.
  • the inner tube and the outer tube are triangular tubes.
  • Fig. 1 is a view showing a state in which a telescopic ladder of the present application is mounted on a beam.
  • FIG. 2 is a structural view of a bellows buffer structure of the present application.
  • FIG. 3 is a cross-sectional state view of the bellows buffer structure of the present application when the ladder is stretched.
  • FIG. 4 is a cross-sectional state view of the bellows buffer structure of the present application when the ladder is contracted.
  • the telescopic tube buffer structure 100 of the present application includes an inner tube 1 and an outer tube 2, the inner tube 1 is slidably sleeved in the outer tube 2; the inner tube 1 and the inner tube
  • the outer tube 2 is a triangular tube.
  • the bellows buffer structure 100 further includes a buffer sheet 3, a shifting piece 4 and a guiding sleeve 5; the buffer sheet 3, the shifting piece 4 and the guiding sleeve 5 have a cross section corresponding to the cross section of the inner tube 1.
  • the retaining plate 4 is fixed to one end of the inner tube 1 by a screw 7, and the receiving plate 4 and the end surface of the inner tube 1 form a receiving groove 6 surrounding the inner tube 1.
  • the guiding sleeve 5 is fixed on the end surface of the inner tube 1 and located on a side close to the receiving groove 6 so that the guiding sleeve 5 faces the shifting piece and the intermediate receiving groove 6 is separated.
  • the guide sleeve 5 can guide the inner tube 1 when the inner tube 1 slides relative to the outer tube 2.
  • the buffer sheet 3 is disposed on the shifting plate 4 and located on a side close to the accommodating groove 6.
  • the edge of the buffer sheet 3 is in contact with the inner side wall of the outer tube 2, so that the inner portion When the tube 1 is retracted into the outer tube 2, the edge of the buffer sheet 3 is turned into the accommodating groove 6, and when the outer tube 2 is extended, the edge of the cushion sheet 3 is slidably pressed Buffering is achieved on the inner side wall of the outer tube 2.
  • the buffer sheet 3 is a silicone sheet.
  • the silicone material has elastic deformation and a large friction coefficient, which can increase the friction and improve the buffering effect when used.
  • the upper end of the telescopic ladder 200 is fixed to the beam 300, and the lowermost step of the telescopic ladder 200 first protrudes downward, and therefore, the outer tube 2 sliding downward relative to the inner tube 1, at the beginning of the sliding, the edge of the cushion sheet 3 slidingly interferes with the inner side wall of the outer tube 2, and occurs downward with the tendency of the outer tube 2 to slide downward.
  • the edge of the cushion sheet 3 can only contact the inner side wall of the outer tube 2 and generate greater frictional resistance, therefore, the buffer The sheet 3 prevents the outer tube 2 from sliding downward to achieve the function of buffering the outer tube 2.
  • the edge of the cushion sheet 3 is The inner side wall of the outer tube 2 is in sliding contact with the outer tube 2 and deforms upward with the tendency of the outer tube 2 to slide.
  • the edge of the buffer sheet 3 can be Turning into the accommodating groove 6 upwardly, thereby reducing the pressure in contact with the inner side wall of the outer tube 2, thereby reducing the frictional resistance, so that the outer tube 2 is quickly and smoothly slidably connected to the inner tube 1 To achieve a discount.
  • the present application forms a receiving groove 6 between the end surface of the inner tube 1 and the end surface of the inner tube 1 by providing the limiting piece 4 at one end of the inner tube 1.
  • a buffer sheet 3 is disposed on a side of the range piece 4 adjacent to the accommodating groove 6, so that an edge of the buffer sheet 3 can be in contact with an inner side wall of the outer tube 2 to achieve the expansion and contraction.
  • the cushion sheet 3 is turned up to reduce the frictional force.
  • the cushion sheet 3 is blocked by the shifting piece 4 to keep in sliding contact with the inner side wall of the outer tube 2.
  • the purpose is to realize the buffering at the time of deployment, the structure is simple, the buffering effect is good, and the safety problem that the operator's body is tilted due to the ladder column falling out too quickly when the telescopic ladder 200 is deployed is prevented, and the telescopic effect is effectively improved.
  • the safety of the ladder 200 is to realize the buffering at the time of deployment, the structure is simple, the buffering effect is good, and the safety problem that the operator's body is tilted due to the ladder column falling out too quickly when the telescopic ladder 200 is deployed is prevented, and the telescopic effect is effectively improved. The safety of the ladder 200.

Landscapes

  • Ladders (AREA)
PCT/CN2018/090210 2017-07-10 2018-06-07 伸缩管缓冲结构 WO2019011082A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK18832839.7T DK3653832T3 (da) 2017-07-10 2018-06-07 Teleskopisk rørbufferstruktur
EP18832839.7A EP3653832B1 (de) 2017-07-10 2018-06-07 Teleskopische rohrpufferstruktur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720833364.7U CN207033331U (zh) 2017-07-10 2017-07-10 伸缩管缓冲结构
CN201720833364.7 2017-07-10

Publications (1)

Publication Number Publication Date
WO2019011082A1 true WO2019011082A1 (zh) 2019-01-17

Family

ID=61466099

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/090210 WO2019011082A1 (zh) 2017-07-10 2018-06-07 伸缩管缓冲结构

Country Status (4)

Country Link
EP (1) EP3653832B1 (de)
CN (1) CN207033331U (de)
DK (1) DK3653832T3 (de)
WO (1) WO2019011082A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837155B (zh) * 2017-01-10 2018-08-07 潘跃进 一种伸缩梯子
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
WO2023101584A1 (en) * 2021-12-02 2023-06-08 Telesteps Ab A damping device and an asymmetric damping block adapted to be arranged in a damping device for a collapsible ladder, a collapsible ladder and a method for arranging a damping device in a collapsible ladder
CN117162245B (zh) * 2023-10-11 2024-03-19 国网江苏省电力有限公司连云港供电分公司 一种活性粉末混凝土分支箱

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305955A (en) 1995-10-02 1997-04-23 Gary Kuo An extension ladder with telescopic legs
CN2674055Y (zh) 2003-12-16 2005-01-26 郭晶耀 伸缩梯的改进结构
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
CN201170058Y (zh) 2008-01-21 2008-12-24 郭晶耀 伸缩梯
JP2009019455A (ja) * 2007-07-13 2009-01-29 Pica Corp 伸縮梯子
EP2343433A1 (de) 2008-09-25 2011-07-13 Kuo, Chingyao Ausziehleiter
EP2770155A1 (de) 2012-06-26 2014-08-27 Ningbo Xingfu Tools Co., Ltd. Sichere teleskopleiter zur verhinderung von handeinklemmung
CN206129129U (zh) * 2016-08-31 2017-04-26 东莞威信运动用品有限公司 伸缩管缓冲导向结构
CN206273998U (zh) * 2016-12-08 2017-06-23 永康市马王实业有限公司 伸缩梯
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205840753U (zh) * 2016-06-22 2016-12-28 永康市富士家居用品有限公司 一种安全伸缩梯

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305955A (en) 1995-10-02 1997-04-23 Gary Kuo An extension ladder with telescopic legs
CN2674055Y (zh) 2003-12-16 2005-01-26 郭晶耀 伸缩梯的改进结构
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
JP2009019455A (ja) * 2007-07-13 2009-01-29 Pica Corp 伸縮梯子
CN201170058Y (zh) 2008-01-21 2008-12-24 郭晶耀 伸缩梯
EP2343433A1 (de) 2008-09-25 2011-07-13 Kuo, Chingyao Ausziehleiter
EP2770155A1 (de) 2012-06-26 2014-08-27 Ningbo Xingfu Tools Co., Ltd. Sichere teleskopleiter zur verhinderung von handeinklemmung
CN206129129U (zh) * 2016-08-31 2017-04-26 东莞威信运动用品有限公司 伸缩管缓冲导向结构
CN206273998U (zh) * 2016-12-08 2017-06-23 永康市马王实业有限公司 伸缩梯
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3653832A4

Also Published As

Publication number Publication date
EP3653832B1 (de) 2022-10-12
EP3653832A1 (de) 2020-05-20
CN207033331U (zh) 2018-02-23
EP3653832A4 (de) 2021-04-21
DK3653832T3 (da) 2022-11-14

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