WO2018040122A1 - Nouvelle échelle télescopique - Google Patents

Nouvelle échelle télescopique Download PDF

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Publication number
WO2018040122A1
WO2018040122A1 PCT/CN2016/098631 CN2016098631W WO2018040122A1 WO 2018040122 A1 WO2018040122 A1 WO 2018040122A1 CN 2016098631 W CN2016098631 W CN 2016098631W WO 2018040122 A1 WO2018040122 A1 WO 2018040122A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
tension
bracket
tube
hole
Prior art date
Application number
PCT/CN2016/098631
Other languages
English (en)
Chinese (zh)
Inventor
潘跃进
Original Assignee
潘跃进
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 潘跃进 filed Critical 潘跃进
Publication of WO2018040122A1 publication Critical patent/WO2018040122A1/fr

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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
    • 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
    • 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

Definitions

  • the invention relates to a ladder, in particular to an extension ladder.
  • Ladders are a necessity in people's daily life and engineering work. Ladders are usually long and bulky, so there are many inconveniences in handling and storage. For this reason, some manufacturers have designed retractable ladders to solve the above problems. Among the more representative types of telescopic ladders, the problem of inconvenience in the handling and storage of the ladder is solved. However, in actual use, the shrinkage and deployment process takes a long time, and the descending speed of the ladder is easy to hurt. The connection between the person and the step is not strong enough.
  • the invention provides a convenient operation, high safety, and step between the steps.
  • a new type of telescopic ladder includes at least three steps, the step includes a ladder column tube and a step, both ends of the step are connected with the step bracket, and the step bracket is connected with the ladder column tube, Among the upper and lower adjacent steps, the upper ladder tube is nested in the adjacent lower ladder tube, and the new extension ladder further includes a tension opening ring descending device, and the tension opening ring descending device includes a tension opening ring.
  • a tensioning ring ring bracket wherein the tensioning ring ring bracket is provided with a fixing button hole, and the lower end of the tensioning ring ring bracket is provided with an annular groove, and the tension groove is set in the annular groove, and the ladder is located above The lower end of the inner wall of the column tube a fastening position, the buckle is engaged with the fixing buckle hole, and the tension opening ring is closely attached to an inner wall of the adjacent lower ladder tube;
  • the outer diameter of the tension ring bracket is larger than the inner diameter of the ladder tube above, and the outer diameter of the tension ring in the natural state is larger than the inner diameter of the adjacent lower column tube.
  • a soft body buffer device is disposed on the step bracket, and the software buffer device has an outer convex shape.
  • the ladder column tube is provided with an inner fixing column hole
  • the step bracket is provided with an outer fixing column hole
  • the fixing column passes through the outer fixing column hole and the inner fixing column hole, and the fixing column is opened
  • a triangular swing arm unlocking device is installed in the step bracket of each of the steps, and the triangular swing arm unlocking device includes a hand push switch, an unlocking boss, a triangular swing arm, a cylinder, a spring and a positioning pin, the hand push switch is interlocked with the positioning pin, one end of the positioning pin is in contact with one end of the spring, and the other end of the spring is located in the cylinder, and the cylinder is fixed in the step bracket
  • the other end of the positioning pin cooperates with the positioning hole of the ladder column tube, and the middle portion of the positioning pin is linked with the first action end of the triangular swing arm, and the second action end of the triangular swing arm and the adjacent lower triangular swing arm
  • the boss of the unlocking device cooperates.
  • the beneficial effects of the invention are mainly manifested in the following: the operation is convenient, the shrinking and unfolding process takes a short time, the safety is high, and the connection between the steps is firm.
  • Fig. 1 is a schematic view showing the construction of a new type of extension ladder in an extended state of use.
  • FIG. 2 is a schematic structural view of a step positioning locking device and a triangular swing arm unlocking device.
  • Figure 3 is a schematic view showing the structure of the tension opening ring descending device, wherein (a) is an exploded view of the tensioned ring ring bracket and the ladder tube located above; (b) the tension after assembly is opened. The structural drawing of the mouth loop descending device; (c) is a schematic view of the tension opening ring.
  • FIG. 4 is a schematic view showing the configuration of the soft body cushioning device, in which (a) is in an unfolded state; and (b) is in a collapsed state.
  • Fig. 5 is a schematic view showing the construction of a step bracket fixing device.
  • Fig. 6 is a cross-sectional view taken along line A of Fig. 5, wherein (a) is a plan sectional view and (b) is a three-dimensional sectional view.
  • a new type of extension ladder includes at least three steps, the step includes a ladder column tube 1 and a step 2, and both ends of the step 2 are connected with the step bracket 3, the step The bracket 3 is connected to the ladder column tube 1.
  • the upper ladder column tube is nested in the adjacent lower ladder column tube, and the new extension ladder further includes a tension opening ring descending device.
  • the tension opening ring descent device includes a tension split ring 14 and a tension split ring bracket 11 .
  • the tension split ring bracket 11 is provided with a fixing buckle hole 12
  • the lower end of the tension split ring bracket 11 is provided with an annular groove.
  • the tension slot is disposed in the annular groove, and a buckle is disposed at a lower end of the inner wall of the ladder tube at the upper side, and the buckle is matched with the fixed buckle hole 12, and the tension opening ring 14 is closely adjacent to the adjacent The inner wall of the ladder tube below;
  • the outer diameter of the tension split ring bracket 11 is larger than the inner diameter of the ladder tube 1 above, and the outer diameter of the tension split ring 14 in the natural state is larger than the inner diameter of the adjacent lower ladder tube 1.
  • a soft buffer device 15 is disposed on the step bracket 3, and the software buffer device 15 has an outer convex shape.
  • the ladder column tube 1 is provided with an inner fixing column hole 19, and the step bracket is provided with an outer fixing column hole 18 through which the fixing column 16 passes through the outer fixing column hole 18 and the inner fixing column hole 19, the fixing post 16 is provided with a pin hole, and the fixing post pin 17 passes through the pin hole through the step bracket.
  • a triangular swing arm unlocking device is installed in the step bracket of each of the other steps, and the triangular swing arm unlocking device includes a hand push switch 8, an unlocking boss 9, and a triangular pendulum
  • the cylinder 4 is fixed in the step bracket 3, and the other end of the positioning pin 6 is engaged with the positioning hole of the ladder tube 1.
  • the middle portion of the positioning pin 6 is linked with the first action end of the triangular swing arm 10,
  • the second action end of the triangular swing arm 10 cooperates with the boss of the adjacent lower triangular swing arm unlocking device.
  • the triangular swing arm unlocking device is installed at each end of the other step 2 except the bottom step 2 (1) and the top step 2 (n), and each set of positioning locking device includes a horizontally arranged circle.
  • the cylinder 4, one end of the cylinder 4 is provided with a spring 5, the other end of the cylinder 4 is provided with a positioning pin 6, and the triangular swing arm unlocking device further comprises a hand push unlocking switch 8 installed at both ends of the step 2 (2), unlocking The boss 9 and the triangular swing arm 10.
  • the push switch 8 at both ends of the step 2 is pushed in the direction indicated by the arrow to drive the positioning pin 6 (1) to move in the same direction and exit from the positioning hole 7 (1) of the ladder tube 1 (2).
  • the upper step is then dropped.
  • the unlocking boss on the step 2 is pressed upward by a stepped triangular swing arm 10, and the triangular swing arm 10 will rotate along its own axis of rotation and drive
  • the positioning pin 6 (2) moves in the direction indicated by the arrow and exits from the positioning hole 7 (2) of the ladder column 1 (3), and the above step is lowered. Drop, and so on, until the entire ladder is contracted.
  • a tension opening ring descending device is provided at the bottom end of all the ladder tube except the bottommost ladder tube, including a tension opening ring bracket 11, a fixed button hole 12, and a buckle on the ladder column tube. 13.
  • Tension opening ring 14 The upper end of the tensioning ring ring bracket is provided with a plurality of fixing button holes for fastening to the buckles processed at the lower end of the ladder column tube.
  • the lower end of the tension opening ring bracket is provided with a slot for installing the tension opening ring and the tension opening ring.
  • the ladder in the upper half of the ladder there are a number of soft, soft cushioning devices 15 disposed on the step bracket. If the ladder is accidentally dumped, it can avoid the direct impact of important structural parts (such as ladder tube, step, step bracket, etc.) in the upper part of the ladder with the ground, transfer the force point, and because the dumping impact buffer is a soft part, Effectively reduce the impact of the ladder dumping, thus effectively protecting the ladder to maintain normal function after dumping and to meet the mechanical properties of normal use.
  • important structural parts such as ladder tube, step, step bracket, etc.
  • the step bracket fixing device mainly includes: a fixing post 16 , a fixing post latch 17 , an outer fixing post hole 18 , and an inner fixing post hole 19 .
  • a fixing post 16 On the step bracket and the ladder column tube, there are an outer fixing column hole 18 and an inner fixing column hole 19 which are provided for the fixing column 16, and the fixing column 16 is inserted into the outer fixing column hole 18 and the inner fixing column hole 19, and the shaft of the step bracket is Inserting the fixing post latch 17 and fixing the fixing post 16 in the outer fixing post hole 18 on the step bracket, so that the step bracket is fastened on the ladder post tube without being pulled out, thereby ensuring the safety and stability of the ladder.

Abstract

L'invention concerne une nouvelle échelle télescopique comprenant au moins trois sections d'échelle. Les sections d'échelle comprennent des montants tubulaires d'échelle (1) et des barreaux d'échelle (2). Les deux extrémités de chaque barreau d'échelle (2) sont reliées à un support de barreau d'échelle (3), les supports de barreau d'échelle (3) étant reliés aux montants tubulaires d'échelle (1) ; dans les sections d'échelle verticalement adjacentes l'une à l'autre, les montants tubulaires d'échelle supérieurs (1) s'insèrent dans les montants tubulaires d'échelle inférieurs (1). Cette nouvelle échelle télescopique comprend en outre un appareil d'abaissement de circlip de tension. L'appareil d'abaissement de circlip de tension comprend un circlip de tension (14) et un support de circlip de tension (11), un trou de fixation (12) étant ménagé au-dessus du support de circlip de tension (11) ; une gorge annulaire est agencée au niveau de l'extrémité inférieure du support de circlip de tension (11) ; le circlip de tension (14) est positionné à l'intérieur de la gorge annulaire ; une position de fixation est prévue au niveau de l'extrémité inférieure de la paroi intérieure du montant tubulaire d'échelle supérieur de manière adjacente (1), cette position de fixation correspondant au trou de fixation (12) ; et le circlip de tension (14) est positionné en contact étroit avec la paroi intérieure du montant tubulaire d'échelle inférieur de manière adjacente (1). Cette nouvelle échelle télescopique est pratique à utiliser et plus sûre, et le raccordement entre les barreaux d'échelle est fiable.
PCT/CN2016/098631 2016-08-30 2016-09-10 Nouvelle échelle télescopique WO2018040122A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610773204.8A CN106150334A (zh) 2016-08-30 2016-08-30 新型伸缩梯
CN201610773204.8 2016-08-30

Publications (1)

Publication Number Publication Date
WO2018040122A1 true WO2018040122A1 (fr) 2018-03-08

Family

ID=57344799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/098631 WO2018040122A1 (fr) 2016-08-30 2016-09-10 Nouvelle échelle télescopique

Country Status (2)

Country Link
CN (1) CN106150334A (fr)
WO (1) WO2018040122A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338789A (zh) * 2021-06-30 2021-09-03 佛山市顺德区万怡家居用品有限公司 伸缩梯的缓降结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2898256Y (zh) * 2006-04-29 2007-05-09 郭晶耀 伸缩梯
CN201273132Y (zh) * 2008-09-12 2009-07-15 胡正江 新型伸缩梯
US20100270106A1 (en) * 2006-03-10 2010-10-28 Mei-Hua Chen Securing device for extending ladder
CN102278059A (zh) * 2011-07-08 2011-12-14 王万兴 一种具有防夹手装置的伸缩梯
CN202194549U (zh) * 2011-07-18 2012-04-18 沈小秋 伸缩梯
CN205445454U (zh) * 2015-12-24 2016-08-10 东莞威信运动用品有限公司 一种伸缩管导向套及一种伸缩管扶梯
CN206111065U (zh) * 2016-08-30 2017-04-19 潘跃进 新型伸缩梯

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1088949A (ja) * 1996-09-12 1998-04-07 Kazuo Yasunaga 伸縮式脚立
WO2008064532A1 (fr) * 2006-11-29 2008-06-05 Wanxing Wang Échelle extensible équipée d'un dispositif anti-pincement
AU2008362048B2 (en) * 2008-09-25 2014-09-25 Chingyao Kuo An extension ladder
GB2536297B (en) * 2015-03-13 2017-03-01 Teletower Com Ltd Damper for the stiles of a telescopic ladder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100270106A1 (en) * 2006-03-10 2010-10-28 Mei-Hua Chen Securing device for extending ladder
CN2898256Y (zh) * 2006-04-29 2007-05-09 郭晶耀 伸缩梯
CN201273132Y (zh) * 2008-09-12 2009-07-15 胡正江 新型伸缩梯
CN102278059A (zh) * 2011-07-08 2011-12-14 王万兴 一种具有防夹手装置的伸缩梯
CN202194549U (zh) * 2011-07-18 2012-04-18 沈小秋 伸缩梯
CN205445454U (zh) * 2015-12-24 2016-08-10 东莞威信运动用品有限公司 一种伸缩管导向套及一种伸缩管扶梯
CN206111065U (zh) * 2016-08-30 2017-04-19 潘跃进 新型伸缩梯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338789A (zh) * 2021-06-30 2021-09-03 佛山市顺德区万怡家居用品有限公司 伸缩梯的缓降结构

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