CN200985737Y - Automatically contracting telescopic ladder - Google Patents

Automatically contracting telescopic ladder Download PDF

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Publication number
CN200985737Y
CN200985737Y CN 200620153711 CN200620153711U CN200985737Y CN 200985737 Y CN200985737 Y CN 200985737Y CN 200620153711 CN200620153711 CN 200620153711 CN 200620153711 U CN200620153711 U CN 200620153711U CN 200985737 Y CN200985737 Y CN 200985737Y
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CN
Grant status
Grant
Patent type
Prior art keywords
sleeve
ends
pin
rung
ladder
Prior art date
Application number
CN 200620153711
Other languages
Chinese (zh)
Inventor
苏正平
Original Assignee
苏正平
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
Grant date

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/04Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E06C1/125Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other

Abstract

The utility model discloses an automatically contract telescopic ladder comprising two ladder frames which consist of sleeves that are sleeved layer upon layer. The upper and lower ends of the sleeves are respectively provided with at least a locating hole, and the upper ends of the corresponding layers of sleeves of the two ladder frames are fixed with stairs, the two ends of which are hollow, and a locating pin, which is a spring cotter and pushes against the inner layer of sleeve, is inserted into the upper end locating hole of the layer of sleeve, and the two ends of the stairs are respectively articulated with a L-shaped controlling crutch, an end of which pushes against the middle part of the spring cotter. The utility model is characterized in that the other end edge of the controlling crutch is flush to the lower edge of the stair or hides in the stair edge, and that the lower stair is provided with a lug boss corresponding to the controlling crutch. The utility model hides the controlling crutch in the stairs, which can avoid the danger caused by the unintentional touch of the controlling crutch by climbers.

Description

一种可自动收缩的伸缩梯 An automatically retractable telescopic ladder

技术领域 FIELD

:本实用新型涉及一种伸缩梯,用在工地、仓库等需要登高作业的场合。 : The present invention relates to a telescopic ladder, used in the case of sites, warehouses and other operations need to climb.

背景技术 Background technique

:中国专利“一种可伸缩的梯子”(专利号为200420091638.2)公开了一种伸缩梯,如图1所示。 : Chinese patent "a telescoping ladder" (Patent No. 200420091638.2) discloses a retractable ladder, as shown in FIG. 包括由层层套接的套筒构成的两个梯架,套筒上下两端有至少各有一个定位孔,两梯架上相应层的套筒上端固定梯级,梯级两端端部中空,内有插入该层套筒的上端定位孔的定位销,该定位销是弹簧销,弹簧销顶在内层套筒壁上,梯级两端各铰接了一个L形的控制拐,控制拐一端顶在弹簧销中部,另一端露出梯级下部之外。 It comprises two ladder, consisting of upper and lower ends of the sleeve the sleeve is sleeved layers each have at least one positioning hole, the upper end of the sleeve corresponding layer two ladder frame fixed step, the step ends thereof hollow, the upper end of the positioning pin insertion holes of the positioning sleeve of the layer, the positioning pin is a spring pin, a spring pin at the top of the inner wall of the sleeve, both ends of the hinge rung of an L-shaped control Shui, the top end of the control Po central spring pin, the other end comes out of a lower rung. 当需要展开伸缩梯时,将内层套筒拉出,使得内层套筒的下端定位孔来到弹簧销处,弹簧销弹出,卡入其内,内层套筒即可被固定在展开位置,逐层拉出内层套筒,伸缩梯即被展开。 When the need to expand the telescopic ladder, the inner sleeve is pulled out, so that the lower end of the inner sleeve to the positioning hole at the spring pin, a spring pin eject the card thereinto, the inner sleeve can be secured in the deployed position , the inner sleeve is pulled out layer by layer, i.e., to expand the telescopic ladder. 当需要收缩伸缩梯时,只需缩回最下级梯级的弹簧销,使得次下级的梯级及其对应的套筒在重力作用下掉落,当次下级梯级上的控制拐露出端碰到最下级梯级梯面上,控制拐露出端受力并绕铰接点转动,其另一端推动弹簧销,使得弹簧销缩回,与该层梯级对应的内层套筒又可在重力作用下掉落,如此循环,所有的梯级均相应收缩。 When the need to shrink extension ladder, only the lowermost rung retraction spring pin such that the lower views of the sleeve and the corresponding step falling under gravity, when the control on the secondary crank lower rung end is exposed across the lowermost ladder rung surface exposed end turn control the force and rotated about a hinge point, the other end of the spring push pin, so that the spring pin is retracted, and can fall to the step corresponding to the inner layer of the sleeve under the action of gravity, so cycle, all the rungs are appropriate shrink. 实现自动收缩。 Automatic shrink.

上述方案的缺点在于:控制拐一端露出梯级之外,如果工人向上攀援时不小心碰倒了控制拐,就有可能造成所有的上层梯级全部陆续掉落而产生危险。 The disadvantage is that the above solution: turn control beyond the end of the cascade is exposed, accidentally knocked over control Shui If workers climbing up, it may cause all of the upper rungs all falling one after another and dangerous.

实用新型内容:本实用新型的目的是提供一种可自动收缩的伸缩梯,既可实现自动收缩的功能,又可保障使用安全。 SUMMARY: The purpose of the present invention is to provide an automatic retractable telescopic ladder, can achieve automatic contraction function, but also guarantee safety.

本实用新型的目的是这样实现的:一种可自动收缩的伸缩梯,包括由层层套接的套筒构成的两个梯架,套筒上下两端至少各有一个定位孔,两梯架上相应层的两套筒上端固定梯级,梯级两端端部中空,内有插入该层套筒的上端定位孔的定位销,该定位销是弹簧销,弹簧销顶在内层套筒上,梯级两端各铰接了一个L形的控制拐,控制拐一端顶在弹簧销上,其特征在于:控制拐的另一端边缘与梯级下边缘平齐或藏于梯级边缘以内,在下级梯级上有与控制拐对应的凸台。 The object of the present invention is achieved: an automatic retractable telescopic ladder, comprising ladder consisting of two layers of telescoped sleeves, the upper and lower ends of the sleeve have at least one positioning hole, two ladder two upper layers fixed on the respective sleeve rung, rung hollow ends thereof, insertion of the inner layer of the sleeve upper end of the positioning dowel holes, the positioning pin is a spring pin, a spring pin on top of the inner sleeve, both ends of the hinge rung of an L-shaped crank control, the control crank on the top end of the spring pin, characterized in that: an edge flush with or hidden within the edge of the lower rung of the control crank with the other end edge of the rung, there is mounted on the lower rung corresponding to the control crank boss.

由于本实用新型的控制拐的边缘与梯级下边缘平齐或藏于梯级边缘以内,没有突出部位,工人攀援其上时,不会碰到控制拐,伸缩梯不会意外收缩而造成危险;同时由于在下级梯级上有与控制拐对应的凸台,调整最下级梯级的弹簧销,次下级梯级向下掉落,当凸台顶在控制拐上时,控制拐受力并绕铰接点转动,其另一端推动弹簧销,使得弹簧销缩回,与该层梯级对应的内层套筒有可在重力作用下掉落,如此循环,所有的梯级均相应收缩,实现自动收缩功能。 Since the edge flush with or hidden within the lower edge of the rung of the present invention the edge of the control crank step, when there is no protruding parts, workers climbing thereon, does not touch the control crank, extension ladder will not accidentally contracting dangerous; while because the control corresponding to the crank boss, the adjustment spring pin lowermost rung, rung times lower falls down on the lower rung, when the boss at the top of the turn control, turn the control force and rotated about a hinge point, the other end of the spring push pin, so that the spring pin is retracted, there is the step corresponding to the inner layer of the sleeve may fall under gravity, and so on, all steps within a respective contraction, systolic function automatically.

附图说明 BRIEF DESCRIPTION

:图1、图2是现有的可自动收缩的伸缩梯示意图;图3、图4是本实用新型的可自动收缩的伸缩梯示意图。 : FIG. 1, FIG. 2 is a schematic view of a conventional telescopic ladder can autoshrink; FIG. 3, FIG. 4 is a schematic view of a telescopic ladder can autoshrink the present invention.

具体实施方式 detailed description

:如图3、图4所示的可自动收缩的伸缩梯,包括由层层套接的套筒1构成的两个梯架2,中间各层套筒1的上下两端有至少各有一个定位孔3,两梯架2上相应层的两套筒1上端固定梯级4,梯级4两端端部5中空,内有插入该层套筒上端定位孔3的定位销6,该定位销6是弹簧销,定位销6顶在内层套筒上,梯级4两端各铰接了一个L形的控制拐7,控制拐7一端顶在弹簧销中部,其特征在于:控制拐的另一端边缘与梯级4下边缘8平齐或藏于梯级边缘以内,在下级梯级4上有与控制拐对应的凸台9。 : 3, FIG automatically retractable telescopic ladder 4, comprising two ladder FIG layer 1 composed of a sleeve socket 2, upper and lower ends of the intermediate layers of the sleeve 1 has at least one each two sleeves 3, the respective layers of the two positioning holes 2 fixed upper ladder rung 1 4, step 5 4 ends thereof hollow, the upper end of the insertion sleeve is positioned positioning holes layer 3 pin 6, the positioning pin 6 a spring pin, the positioning pin 6 on the inner sleeve, both ends of the hinge rung 4 of an L-shaped crank control 7, 7 control crank pin one end of the top in the middle of the spring, wherein: the other end edge of the control crank 4 with the step flush with the lower edge 8 or hidden within the edge of the step, the control crank has corresponding bosses 4 9 mounted on the lower rung.

在控制拐上设置弹性件,弹性件向压紧弹簧销的方向施力。 An elastic member disposed on the turn control, the resilient member urging the pressing direction of the spring pin. 可将控制拐的位置固定,以提高安全性能,并避免其在梯级内晃动产生噪音,影响使用者的心情。 Can fix the position of the control crank, in order to improve safety, and to prevent it from moving in the step noise, influence the mood of the user.

Claims (2)

  1. 1.一种可自动收缩的伸缩梯,包括由层层套接的套筒构成的两个梯架,中间各层套筒上下两端至少各有一个定位孔,两梯架上相应层的各层套筒上端固定梯级,梯级两端端部中空,内有插入该层套筒上端定位孔的定位销,该定位销是弹簧销,弹簧销顶在内层套筒上,梯级两端各铰接了一个L形的控制拐,控制拐一端顶在弹簧销中部,其特征在于:控制拐的另一端边缘与梯级下边缘平齐或藏于梯级边缘以内,在下级梯级上有与控制拐对应的凸台。 1. An automatic retractable telescopic ladder, comprising ladder consisting of two layers of the socket sleeve, both ends of the sleeve intermediate the upper and lower layers each have at least one positioning hole, two respective ladder frame each layer an upper layer fixed sleeve rung, rung hollow ends thereof, the layer is positioned within the pin insertion hole positioning the upper end of a sleeve, the positioning pin is a spring pin, a spring pin on top of the inner sleeve, both ends of the hinge rung an L-shaped crank control, a control spring in the middle of the top end of crank pin, characterized in that: an edge flush with or hidden within the edge of the lower rung of the control crank with the other end edge of the step, corresponding with a control crank mounted on the lower rung boss.
  2. 2.根据权利要求1所述的可自动收缩的伸缩梯,其特征在于:在控制拐上设置弹性件,弹性件向压紧弹簧销的方向施力。 According to claim 1 can automatically retractable telescopic ladder claim, wherein: the elastic member, the elastic member in turn urging the control pin in the direction of the pressing spring.
CN 200620153711 2006-11-27 2006-11-27 Automatically contracting telescopic ladder CN200985737Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620153711 CN200985737Y (en) 2006-11-27 2006-11-27 Automatically contracting telescopic ladder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200620153711 CN200985737Y (en) 2006-11-27 2006-11-27 Automatically contracting telescopic ladder
PCT/CN2007/003195 WO2008064555A1 (en) 2006-11-27 2007-11-12 An auto-retractable extersion ladder

Publications (1)

Publication Number Publication Date
CN200985737Y true CN200985737Y (en) 2007-12-05

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CN 200620153711 CN200985737Y (en) 2006-11-27 2006-11-27 Automatically contracting telescopic ladder

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WO (1) WO2008064555A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012055159A1 (en) * 2010-10-28 2012-05-03 宁波兴富工具有限公司 Locking structure for extensionableladder
WO2012104238A1 (en) * 2011-02-02 2012-08-09 Patentselskabet Af 10. December 2010 Aps Collapsible ladder
EP2343433A4 (en) * 2008-09-25 2016-01-20 Kuo Chingyao An extension ladder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384100A1 (en) * 1977-03-18 1978-10-13 Lavrard Georges Lock for hinged sections of folding ladder - has spring loaded taper nosed pin in each side of hollow rung and operated by sliding pulls
JPH08151882A (en) * 1994-11-29 1996-06-11 Takashi Teramoto Ladder
JPH09317365A (en) * 1996-05-24 1997-12-09 Kazuo Yasunaga Extension type ladder
CN2599203Y (en) * 2003-01-24 2004-01-14 孙长军 Extension ladder
CN2716479Y (en) * 2004-02-06 2005-08-10 王万兴 Extension ladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2343433A4 (en) * 2008-09-25 2016-01-20 Kuo Chingyao An extension ladder
WO2012055159A1 (en) * 2010-10-28 2012-05-03 宁波兴富工具有限公司 Locking structure for extensionableladder
WO2012104238A1 (en) * 2011-02-02 2012-08-09 Patentselskabet Af 10. December 2010 Aps Collapsible ladder
US8939256B2 (en) 2011-02-02 2015-01-27 Patentselskabet Af 10. December 2010 Aps Collapsible ladder

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Publication number Publication date Type
WO2008064555A1 (en) 2008-06-05 application

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