CN101798902A - Connecting sleeve for extension ladder - Google Patents

Connecting sleeve for extension ladder Download PDF

Info

Publication number
CN101798902A
CN101798902A CN 201010127269 CN201010127269A CN101798902A CN 101798902 A CN101798902 A CN 101798902A CN 201010127269 CN201010127269 CN 201010127269 CN 201010127269 A CN201010127269 A CN 201010127269A CN 101798902 A CN101798902 A CN 101798902A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
connecting
rotating plate
transposition
shaft
ring
Prior art date
Application number
CN 201010127269
Other languages
Chinese (zh)
Other versions
CN101798902B (en )
Inventor
王万兴
Original Assignee
王万兴
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

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/08Special construction of longitudinal members, or rungs or other treads
    • E06C7/082Connections between rungs or treads and longitudinal members
    • E06C7/086Connections between rungs or treads and longitudinal members with a connecting piece inserted in a hollow rung
    • 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
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/06Securing devices or hooks for parts of extensible ladders

Abstract

The invention discloses a connecting sleeve for an extension ladder, which comprises a connecting ring (1) and a connecting block (2) which are connected into a whole body; a rotary seat (3) and a rotating plate (4) are arranged on the surface of the joint of the connecting ring (1) and the connecting block (2); the rotary seat (3) is fixed relative to the connecting ring (1); a faucet (31) is arranged at the center of the rotary seat (3); two sides of the faucet (31) respectively extend toward the center to have a rotating shaft (32); the vertical part (41) of the rotating plate (4) is inserted into the faucet (31); and a torsional spring (5) is arranged outside the rotating shaft (32) and enables the transverse part (41) of the rotating plate (4) to move towards the connecting block (2)by taking the rotating shaft as the center and to have the tendency of erecting above the rotary seat (3). Compared with the prior art, the connecting sleeve has the advantages that when the connecting sleeve is in normal use, due to the separation of the rotating plate, the distance between the upper rail and the lower rail of the extension ladder is constant so as to hold fingers, so the connecting sleeve can effectively prevent the rail at the upper part from pressing the fingers on the lower rail when furling the extension ladder, and when the extension ladder is packaged for transportation, the overall height of the ladder can not be too high.

Description

一种用于伸缩梯的连接套 A telescopic ladder connection sleeve for

技术领域[0001] 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。 BACKGROUND [0001] Technical Field The present invention relates to extension ladders, particularly to a connecting sleeve for a telescopic ladder. 背景技术 Background technique

[0002] 梯子在建筑、装修、广告、家庭住宅领域的使用已经相当广泛。 [0002] ladder used in the construction, decoration, advertising, family, home field has been quite extensive. 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。 Currently, the market is down more popular retractable telescopic ladder, which when not in use, can be shortened and easy storage, handling. 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。 Patent No. ZL200420091638. 2 (Publication No. is CN2716479Y) prior patent "A telescopic ladders", it discloses such a telescopic ladder, comprising a crossbar and a vertical bar, vertical bar sleeve can be several sections telescopically Taojie, disposed between the plurality of crossbar two opposite vertical bar, at both ends of each bar are provided with a retractable pin shaft, the shaft pin and the opening in the sleeve respectively thereto corresponding positioning socket adapted, in each section of the upper end of the sleeve is sleeved annular coupling sleeve, and the connecting sleeve are connected together and the rail. 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。 Such extension ladder in use, because there is no fixed gap between the top and bottom rails, and will help the user's hands in a generally bar, when retracted telescopic ladder, the bar will be pressed upward under resting finger on the crossbar, unsafe risks.

发明内容 SUMMARY

[0003] 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。 [0003] The present invention solves the technical problem of the prior art and the present situation to provide a connecting sleeve for a telescopic ladder, which makes having a constant pitch between top and bottom rails, effectively prevent extension ladder collapsed crossbar down to the finger, and when the product packaging, shipping, and overall height is not too high, very suitable for practical use.

[0004] 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; [0004] The present invention solves the above technical problems the technical solution is adopted: the connection for the telescopic ladder set, comprising a connecting ring and connecting block as a single entity, wherein: the connection between the connecting ring and the connecting block It is provided with a rotating plate and transposition of the upper surface;

[0005] 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; [0005] wherein said connecting ring is fixed relative to the transposase, the transposase has a central opening socket, and the socket side edges extend toward the center of a rotating shaft;

[0006] 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; [0006] The rotary plate substantially T-shaped, the vertical portion thereof is inserted into the socket transposition, which is located on the transverse portion transposition, and two revolutions of the shaft seat laterally inserted into the vertical portion of the shaft hole;

[0007] 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。 [0007] Further, the vertical portion of the rotatable shaft hole plate, the outer shaft is provided with a torsion spring, one end of the torsion spring inside the shaft hole of the rotating plate and the other end is connected to the transposition, the rotary plate the transverse portion has a tendency to be rotatable and always rises upward transposition center to the rotating shaft in the direction of the connecting block.

[0008] 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而与横杆相连。 [0008] The connecting ring sleeved on the outer sleeve corresponding to the vertical bar being connected to the vertical bar, is inserted into the end of the connecting block is connected to the cross bar and the cross bar.

[0009] 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。 [0009] In order to further ensure the setting of the rotating plate and transposition can effectively protect the user's hands, the rotating plate has a height greater than the thickness of the fingers.

[0010] 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。 [0010] For ease of component assembly, the transposase may be formed by combining about two minutes from transposon, transposition is divided by a bottom and inserted into the boss at the connection between the connecting ring and the connecting block.

[0011] 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。 [0011] As a further improvement, the lateral portion of the rotary plate may be a trapezoidal shape, so, the top portion having a horizontal transverse surface facilitates upward against the bottom rail, and the thickness of the rotary plate transposase adapted, so when the rotating plate upright, which constitutes an integral, clean surface, the transverse portion of the rotating plate is folded down after the transposition side surface of the rotary plate top surface substantially flush with a transposase with a transposase.

[0012] 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。 [0012] To ensure that the rotating plate protects the fingers when erected, the overall height of the rotating plate is preferably greater than equal 2CM. [0013] 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。 [0013] Compared with the prior art, advantages of the present invention is characterized: by transposition, the rotating plate and the torsion spring is disposed between the lateral portion of the rotary plate capable of rotating shaft as the center, and a connection sleeve relative transposition itself is rotated, during normal use of the telescopic ladder, always due to the rotation plate relative to the rising upward transposition, between the top and bottom rails apart due to the rotation plate having a fixed pitch, the pitch can accommodate a finger, effectively prevent collapsed telescopic ladder, positioned above the crossbar to the crossbar below the pressure finger, and, when the telescopic ladder packing and shipping, can be folded down plate is rotatable transverse portion, located on one side of transposition, thus, only between the top and bottom rails transposition when the height of the pitch, the product packaging, shipping, and overall height is not too high, very suitable for practical use.

附图说明 BRIEF DESCRIPTION

[0014] 图1为本发明实施例的结构示意图; [0014] FIG. 1 is a schematic structure of an embodiment of the present invention;

[0015] 图2为本发明实施例在转动板折倒状态的结构示意图; [0015] In the structural diagram of FIG. 2 is folded down state of the rotating plate embodiment of the invention;

[0016] 图3为本发明实施例的立体分解图。 [0016] Fig 3 an exploded perspective view of an embodiment of the present invention.

具体实施方式 Detailed ways

[0017] 以下结合附图实施例对本发明作进一步详细描述。 Example DRAWINGS The invention will be further described in detail with [0017] the binding.

[0018] 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; [0018] Application of telescopic ladder embodiment of the present invention, includes a fixed two vertical rods and disposed opposite the bar comprises a plurality of vertical bar between the two, two telescopic vertical rods inside and outside the socket and sleeve so, between two sections with a fixed relative to the sleeve rail, and the ends of each crossbar of the embodiment of the present invention is connected with a corresponding set of vertical bar relative to the fixed sleeve embodiment;

[0019] 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 ; [0019] As shown in FIG. 1, 2 and 3, is connected to the telescopic ladder set, comprising 2, the connection between the connecting ring and a connecting block 2 integrally connected to the ring 1 and the connecting block is connected the surface is provided with a seat 3 and turn the rotating plate 4;

[0020] 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; [0020] wherein ring 1 is connected to the casing sleeve provided corresponding to the vertical bar is fixed, the connection block 2 is inserted into the corresponding end of the crossbar;

[0021] 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 ; [0021] The left and right two transposase 3 minutes transposon mosaic 3a, 3a through the bottom housing half turn of the stud 33 is inserted into the connector 1 side of the ring, so that the connecting ring is fixed relative to a transposable center 3 socket 31 is opened, and the side edges of the socket 31 has a rotary shaft 32 extends toward the center, respectively;

[0022] 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; [0022] The rotary plate 4 substantially T-shaped, the overall height of 3CM, vertical portion 41 which is inserted into the socket 3 in the transposition 31, its transverse portion 42 has a trapezoidal shape and is positioned above the transposition 3, the rotating plate substantially the same thickness as the transposase 4 3;

[0023] 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,也艮口,相对连接块2折倒; [0023] 3 on two rotating shafts 32 laterally transposon inserted into the shaft hole 41 of the vertical portion 41a, the transverse portion of the rotary plate 424 can be rotated about the rotary shaft 32, the rotary plate transversely 4 transposable portion 42 is rotated to the side 2, also Gen port connecting block 2 relative Zhedao;

[0024] 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。 [0024] Further, the rotating plate 4 of the inner shaft hole 41 of the vertical portion 41a, the outer shaft 32 is provided with a torsion spring 5 connected to a shaft hole, one end of the torsion spring 51 and the rotating plate 41a of the inner side 4 of 5, the other end 52 3 is connected to the transposition, the rotating plate without an applied external lateral portion of the case 414 to the rotary shaft 32 can be rotated in the direction of the connection block 2, and has a tendency to always rises upward transposition center 3, i.e., in , the transverse portion of the rotating plate 414 is always upwardly, in practical applications, so that between the top and bottom rails spaced apart by the entire extension ladder 4 and the rotary plate 3 transposition, only the lateral portion of the rotating plate 414 in the case where external force is applied , the block 2 can be folded down toward the connector, so that only three spaced apart by a transposition between the top and bottom rails.

Claims (4)

  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。 A method for connecting the telescopic ladder set, comprising a ring connected to integrated connector (1) and the connection block (2), characterized in that: the connection between the upper surface of the connecting ring (1) and the connection block (2) is provided with a rotation seat (3) and the rotary plate (4); wherein said transfer seat (3) relative to the connecting ring (1) is fixed, transposition (3) a central opening with a socket (31), and the socket (31) the side edges extend toward the center there is a shaft (32); inner socket (31) of said rotating plate (4) is substantially T-shaped, its vertical part (41) is inserted into the transposition (3), the transverse portion (42) is located above the transposition (3), and two transposition shaft (32) (3) transversely inserted into the shaft hole (41a) the vertical portion (41); and the rotating plate axial bore (41a) (4) vertical portion (41) of the shaft (32) is provided with an outer (5), the axial bore of the torsion spring (5) one end (51) and the rotating plate (4) is a torsion spring (41a) inner side, the other end (52) and transposition (3) is connected to the lateral portion of the rotating plate (4) (41) rotatably connected to the block (2) around the rotation axis direction and always having to turn (3) rising above the trend seat.
  2. 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。 The connector sleeve for a telescopic ladder according to claim 1, wherein: said transfer seat (3) formed by combining two left and right points transposition (3a) together, half turn seat (3a) through the bottom the boss (33) to be inserted between the junction (2) connected to the ring (1) and the connecting block.
  3. 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。 The connector sleeve or telescopic ladder according to claim 1, wherein: the thickness of the rotary plate (4) the thickness of the transposase (3) adapt.
  4. 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。 The connector sleeve or telescopic ladder according to claim 1, wherein: said integrally rotating plate (4) is equal to a height greater than 2CM.
CN 201010127269 2010-03-17 2010-03-17 Connecting sleeve for extension ladder CN101798902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010127269 CN101798902B (en) 2010-03-17 2010-03-17 Connecting sleeve for extension ladder

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN 201010127269 CN101798902B (en) 2010-03-17 2010-03-17 Connecting sleeve for extension ladder
EP20100847652 EP2549054B1 (en) 2010-03-17 2010-06-22 Connecting sleeve for extension ladder
PCT/CN2010/000909 WO2011113183A1 (en) 2010-03-17 2010-06-22 Connecting sleeve for extension ladder

Publications (2)

Publication Number Publication Date
CN101798902A true true CN101798902A (en) 2010-08-11
CN101798902B CN101798902B (en) 2013-02-06

Family

ID=42594729

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010127269 CN101798902B (en) 2010-03-17 2010-03-17 Connecting sleeve for extension ladder

Country Status (3)

Country Link
EP (1) EP2549054B1 (en)
CN (1) CN101798902B (en)
WO (1) WO2011113183A1 (en)

Citations (6)

* 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 (en) * 2002-09-25 2003-09-10 王国华 Telescopic ladder
US20050139424A1 (en) * 2002-08-02 2005-06-30 Core Distribution, Inc. Extending ladder and associated manufacturing methods
CN2804355Y (en) * 2005-06-24 2006-08-09 杨洪建 Telescopic ladder
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
CN201650097U (en) * 2010-03-17 2010-11-24 王万兴 Connecting sleeve for extension ladder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3542645B2 (en) * 1994-09-20 2004-07-14 隆 寺本 ladder
DE19653003C2 (en) * 1996-12-19 1999-05-27 Giesserei & Montage Gmbh collapsible ladder
CN2716479Y (en) 2004-02-06 2005-08-10 王万兴 Extension ladder
JP4580346B2 (en) * 2006-01-13 2010-11-10 アルインコ株式会社 Telescopic ladder
CN201301661Y (en) * 2008-01-31 2009-09-02 沈孔南 A telescopic ladder

Patent Citations (6)

* 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 (en) * 2002-09-25 2003-09-10 王国华 Telescopic ladder
CN2804355Y (en) * 2005-06-24 2006-08-09 杨洪建 Telescopic ladder
US20070267252A1 (en) * 2006-05-17 2007-11-22 Kuo-Ching Yao Extension ladder with improved mechanism
CN201650097U (en) * 2010-03-17 2010-11-24 王万兴 Connecting sleeve for extension ladder

Also Published As

Publication number Publication date Type
EP2549054B1 (en) 2015-11-04 grant
WO2011113183A1 (en) 2011-09-22 application
EP2549054A4 (en) 2015-01-07 application
CN101798902B (en) 2013-02-06 grant
EP2549054A1 (en) 2013-01-23 application

Similar Documents

Publication Publication Date Title
US20150275541A1 (en) Tent system employing an improved spider hub and associated frame structure and method of compacting the frame for reduced storage size
CN201256794Y (en) Foldable bed guard rail
CN201905454U (en) Table leg with retractable wheel
US20120063839A1 (en) Foldable trampoline connector
CN201043368Y (en) Sliding pin joint seat of tent top strut bar and upright post
CN201627531U (en) Expansion folding ladder
CN201123762Y (en) Foldable shower screen
CN202847580U (en) Manual forward folding display
CN2766643Y (en) Folding frame for opposite folding desk
CN205100526U (en) Novel portable folding lift split heads
CN202732585U (en) Locking structure for center connecting rod of foldable bed bottom frame
CN2798819Y (en) Folding type safe baby swimming bucket
CN203272365U (en) Table leg connecting piece
CN202358259U (en) V-shaped locking mechanism
US20140115827A1 (en) Foldable table
CN203735825U (en) Bed guardrail supporting rod
CN202395142U (en) Digital television antenna
CN202483923U (en) Base of folding type stand fan
CN204576991U (en) Device for foldable demonstration
CN205445113U (en) Folding cool covering or awning on a car, boat, etc. frame and supporting mechanism thereof
CN204591101U (en) Multi-purpose ladder of folded cascade
CN105031896B (en) A scalable golf bag
CN202919576U (en) Folding stool
CN208119334U (en) A folding structure and scooters
CN201606401U (en) Shaped pipe 9 disposed opposite to the spring holder is hinge-groove humanoid

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted