WO2012126348A1 - 一种折叠接头 - Google Patents

一种折叠接头 Download PDF

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Publication number
WO2012126348A1
WO2012126348A1 PCT/CN2012/072595 CN2012072595W WO2012126348A1 WO 2012126348 A1 WO2012126348 A1 WO 2012126348A1 CN 2012072595 W CN2012072595 W CN 2012072595W WO 2012126348 A1 WO2012126348 A1 WO 2012126348A1
Authority
WO
WIPO (PCT)
Prior art keywords
folding
folding joint
handle
folded
joint according
Prior art date
Application number
PCT/CN2012/072595
Other languages
English (en)
French (fr)
Inventor
韩德玮
吴建华
程书俊
李镜锋
Original Assignee
大行科技(深圳)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 大行科技(深圳)有限公司 filed Critical 大行科技(深圳)有限公司
Publication of WO2012126348A1 publication Critical patent/WO2012126348A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable

Definitions

  • the utility model relates to a folding joint mainly used for folding bicycles and folding electric vehicles, in particular to a folding joint applied to a folding frame and a folding vertical pipe.
  • the bonding surface of the two edges of the folder is a curved surface
  • the handle is provided with a ejector rod, and one end of the ejector rod is transversely fixed. Pin and threaded connection, the other end passes through the handle through hole and against the roller shaft; Since the ejector rod passes through two holes at the same time and one of them is screwed, it involves the problem of coaxiality. If the handle through hole is too loose, it will cause the top. The rod is swaying and not secure. If the handle through hole is too tight, the assembly is difficult, and the parts required for this solution are many. Significantly complicated. Utility model content
  • the utility model aims to provide a folding joint with simple structure, convenient processing and easy assembly.
  • Another object of the present invention is to provide a fold joint that is inexpensive, easy to use, and reliable.
  • the utility model is realized as follows: a folding joint comprising a first folding body, a second folding body and a handle, the first folding body and the second folding body being hinged on one side, the handle and the other side of the first folding body Rotatable connection, one end of the handle near the first folding body is provided with a connecting block, and the connecting block is fixedly provided with a top rod, and one end of the top rod is topped on the top body of the second folding body to lock the folding joint .
  • the connecting block is provided with a threaded hole, and the jack is provided with an external thread that cooperates with the threaded hole.
  • the top body of the second folding body is disposed on the second folding body, and the cross section of the top body along the rotating direction of the jack is an arc.
  • the top body of the second folding body is a drum shaft, and the top rod is mounted on the drum shaft when the folding joint is locked.
  • the top body of the second folding body is a drum shaft and a sleeve sleeved on the drum shaft. When the folding joint is locked, the top rod is placed on the sleeve.
  • the sleeve has a circular cross section, an eccentric ring, an elliptical ring or a fan shape with a circular hole.
  • the sleeve is provided with a boss on the thicker wall side.
  • Corresponding protrusions and grooves are respectively disposed on the first folded body and the second folded body.
  • the center line of the front end of the handle and the center line of the tail end have a certain angle.
  • the folding joint further includes a handle limiting structure.
  • the utility model provides a folding joint, which has the advantages of simple structure, convenient processing, easy assembly, low price, convenient use and reliability.
  • Figure 1 is an exploded view of a folded joint of the embodiment of the present invention
  • Figure 2 is a cross-sectional view of a folded joint of the embodiment of the present invention.
  • Figure 3 is an exploded view of the fold joint of the second embodiment of the present invention.
  • Figure 4 is an exploded view of the three-folded joint of the embodiment of the present invention.
  • Figure 5 is an exploded view of the improved embodiment of the three-folded joint of the embodiment of the present invention.
  • Figure 6 is a schematic view of a four-folded joint of the embodiment of the present invention. detailed description
  • a folding joint includes a first folding body 1, a second folding body 2 and a handle 3.
  • the first folding body 1 and the second folding body 1 are passed through a hinge shaft 7
  • One side is hinged, the first folding body 1 is hinged on the other side with the handle 3 via a hinge shaft 6.
  • the end of the handle 3 adjacent to the first folding body is provided with a connecting block 5, and the connecting block 5 is provided with a threaded hole, a ejector 4 is provided with an external thread, and the jack 4 is screwed to the connecting block 5.
  • the first folded body 1 is attached to the second folded body 2, the handle 3 is rotated, and gradually approaches the second folded body 2, and the bottom end of the ejector 4 slides over the spherical structure 11 on the second folded body 2, when the ejector 4
  • the spherical surface of the spherical structure 11 of the second folded body 1 is perpendicular to the ram 4, that is, the dead point is turned, the first folded body 1 and the second folded body 1 are reliably Locked.
  • the ejector pin 4 is at the bottom end and the threaded connection of the ram 4 and the connecting block 5, which greatly shortens the force receiving distance of the ram 4, enhances the rigidity of the ram 4, and the folding joint is more reliable, and the adjusting ram 4 With the position between the connecting blocks 5, the locking force of the folding joint can be adjusted.
  • the acrosome of the spherical structure 11 can be set to other structures, such as a cylindrical structure, and only a cross section of the abutment along the direction of rotation of the ejector 4 is required to be an arc.
  • the folding joint of the embodiment is different from the folding joint of the first embodiment in that a connecting ear 9 is disposed at a corresponding position of the second folding body 2, and the connecting ear 9 can accommodate the drum shaft 8, when Rotate the handle 3, the top end of the top rod 4
  • the roller shaft 8 is locked to lock the folding joint, and the first folding body 1 is provided with a protrusion 12, and the second folding body is provided with a groove corresponding thereto, and the folding joint is positioned by the protrusion 12 and the groove structure.
  • the second folding body 1 is provided with a shaft hole for accommodating the roller shaft 8 at a corresponding position, and a portion of the roller shaft 8 disposed in the shaft hole is partially exposed, and the handle 3 is rotated, and the bottom end of the ejector pin 4 is topped. The roller shaft 8 is held to lock the folding joint.
  • the third embodiment is different from the folding joint of the second embodiment in that the roller shaft 8 is sleeved with a cylindrical sleeve 10, and the sleeve 10 has a circular cross section.
  • the sleeve 10 is provided with a boss. During the locking of the folding joint, the bottom end of the jack 4 is used to push the boss, and when the jack 4 is rotated over the dead point And the top is tight.
  • the cross section of the sleeve can also be set as an eccentric ring, an elliptical ring or a fan shape with a circular hole, and the boss is arranged on an eccentric ring, an elliptical ring or a fan-shaped thicker side with a circular hole. .
  • Embodiment 4 As shown in FIG. 6, the folding joint of the embodiment is used on the U-shaped frame, and the tail end of the handle 3 is tilted up along the frame 13 to prevent the human touch from being caught during the loading and unloading process.
  • the handle frame 3 can also be provided with a handle limit structure. After the fold joint is folded, the handle limit structure can clamp the handle 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

一种折叠接头 技术领域
本实用新型涉及一种主要用于折叠自行车、 折叠电动车的折叠接头， 特别涉及一种应 用于折叠车架、 折叠竖管上的折叠接头。 背景技术
自行车因健身、 环保， 在我国深受消费者喜爱， 近些年， 折叠自行车因占地空间小、 携带方便深受追捧， 折叠器是折叠自行车重要的部件， 折叠器的安全性、 操作方便性、 价 格成本、 使用寿命等受折叠自行车爱好者的关注， 中国专利文献 200820212238. 0公开了 一种自行车折叠器， 它由手柄、 折叠器前缘与折叠器后缘构成， 手柄通过手柄转轴与折叠 器前缘相连， 折叠器前缘与后缘通过销轴连接并分别焊接在自行车上， 折叠器两缘的贴合 面为贴合的曲面， 手柄上设有一顶杆， 顶杆一端贯穿横向固定销且螺紋连接， 另一端穿过 手柄通孔且顶住滚筒轴； 由于顶杆要同时穿过两个孔并且其中一个是螺紋连接， 涉及到同 轴度的问题， 如果手柄通孔太松则导致顶杆晃动、 不牢靠， 如果手柄通孔过紧则导致装配 困难， 并且本方案所需零件多， 稍显复杂。 实用新型内容
本实用新型旨在提供一种结构简单、 加工方便、 装配容易的折叠接头。
本实用新型的另一个目的是提供一种价廉、 使用方便、 可靠的折叠接头。
本实用新型是这样实现的： 一种折叠接头， 包括第一折叠体、 第二折叠体和手柄， 第 一折叠体和第二折叠体在一侧铰接， 手柄与第一折叠体的另一侧可转动连接， 所述手柄上 靠近第一折叠体的一端设有连接块， 连接块上固定设有顶杆， 所述顶杆的一端顶在第二折 叠体的顶体上将折叠接头锁紧。
所述连接块上设有螺紋孔， 所述顶杆设有与所述的螺紋孔配合的外螺紋。
所述第二折叠体的顶体设在第二折叠体上， 顶体沿顶杆转动方向的截面为圆弧。 所述第二折叠体的顶体为滚筒轴， 折叠接头锁紧时， 所述顶杆顶在所述滚筒轴上。 所述第二折叠体的顶体为滚筒轴和套设在滚筒轴上的轴套， 折叠接头锁紧时， 所述顶 杆顶在所述轴套上。
所述轴套的横截面为圆环、 偏心圆环、 椭圆环或者设有圆孔的扇形。 所述轴套较厚壁侧设有凸台。
第一折叠体和第二折叠体上分别设有相对应的突起和凹槽。
所述手柄前端中心线和尾端的中心线具有一定的夹角。
所述的折叠接头还包括手柄限位结构。
本实用新型提供的一种折叠接头， 结构简单、 加工方便、 装配容易、 价格低廉、 使用 方便、 可靠。 附图说明
图 1是本实用新型实施例一折叠接头的爆炸图；
图 2是本实用新型实施例一折叠接头的剖视图；
图 3是本实用新型实施例二折叠接头的爆炸图；
图 4是本实用新型实施例三折叠接头的爆炸图；
图 5时本实用新型实施例三折叠接头改进方案的爆炸图；
图 6是本实用新型实施例四折叠接头的示意图。 具体实施方式
下面结合附图对本实用新型做进一步说明。
实施例一， 如图 1、 图 2所示， 一种折叠接头， 包括第一折叠体 1、 第二折叠体 2和 手柄 3 , 第一折叠体 1和第二折叠体 1通过铰轴 7在一侧铰接， 第一折叠体 1在另一侧与 手柄 3通过铰轴 6铰接， 所述手柄 3上靠近第一折叠体的一端设有连接块 5 , 连接块 5设 有螺紋孔， 顶杆 4上设有外螺紋， 顶杆 4与连接块 5螺紋连接。
将第一折叠体 1与第二折叠体 2贴合， 转动手柄 3 , 渐渐靠近第二折叠体 2 , 顶杆 4 底端滑过第二折叠体 2上的球面状结构 11 , 当顶杆 4与第二折叠体 1过盈配合， 且第二折 叠体 1的球面状结构 11的球面与顶杆 4垂直时， 即转过死点， 则第一折叠体 1与第二折 叠体 1可靠地锁紧。 顶杆 4受力点在底端和顶杆 4与连接块 5的螺紋连接处， 大大缩短了 顶杆 4的受力距离， 增强了顶杆 4的刚性， 折叠接头更加可靠， 调节顶杆 4与连接块 5间 的位置， 可调节折叠接头的锁紧力。 所述球面状结构 11的顶体可设为其它结构， 如圆柱 面结构， 仅需满足顶体沿着顶杆 4转动方向的截面为圆弧。
实施例二， 如图 3所示， 本实施例折叠接头与实施例一折叠接头的不同在于， 在第二 折叠体 2相应位置设有连接耳 9 , 连接耳 9可容置滚筒轴 8 , 当转动手柄 3 , 顶杆 4底端顶 住滚筒轴 8而锁紧折叠接头， 第一折叠体 1上设有突起 12 , 第二折叠体上设有凹槽与之对 应， 折叠接头通过突起 12和凹槽结构进行定位。 作为本实施例的等同技术方案， 第二折 叠体 1相应位置设有容置滚筒轴 8的轴孔， 置于轴孔的滚筒轴 8中部有部分暴露， 转动手 柄 3 , 顶杆 4底端顶住滚筒轴 8而锁紧折叠接头。
实施例三， 如图 4所示， 本实施例折叠接头与实施例二折叠接头的不同在于， 滚筒轴 8上套设有柱状的轴套 10 , 所述轴套 10横截面为圆环。 作为本实施例的优选方案， 如图 5 所示， 所述轴套 10上设有凸台， 折叠接头锁紧过程中， 顶杆 4底端拨动凸台， 当顶杆 4 转过死点而顶紧。 所述轴套的横截面还可设为偏心圆环、 椭圆环或设有圆孔的扇形， 所述 凸台设在偏心圆环、 椭圆环或者设有圆孔的扇形较厚壁的一侧。
实施例四， 如图 6所示， 本实施例折叠接头用在 U形车架上， 手柄 3的尾端沿着车架 1 3上翘， 防止在上、 下车过程中人为碰到而松开， 还可在车架 1 3上设有手柄限位结构， 折叠接头折叠后， 手柄限位结构可对手柄 3进行卡位。
本实用新型并非仅限于上述实施例， 凡依本实用新型申请范围所述的构造、 特征及原 理所作的等效变化或替代， 均应包含于本实用新型的申请范围。

Claims

权利要求
1、 一种折叠接头， 包括第一折叠体（1)、 第二折叠体（2)和手柄 （3), 第一折叠体 ( 1)和第二折叠体（2)在一侧铰接， 手柄 （ 3) 与第一折叠体的另一侧可转动连接， 其 特征在于， 所述手柄 （ 3 )上靠近第一折叠体的一端设有连接块（ 5 ), 连接块（ 5 )上固定 设有顶杆（4), 所述顶杆（4) 的一端顶在第二折叠体（2) 的顶体上将折叠接头锁紧。
2、 根据权利要求 1所述的折叠接头， 其特征在于， 所述连接块（ 5 )上设有螺紋孔， 所述顶杆（4)设有与所述的螺紋孔配合的外螺紋。
3、 根据权利要求 1所述的折叠接头， 其特征在于， 所述第二折叠体（2) 的顶体设在 第二折叠体（2)上， 顶体沿顶杆（4)转动方向的截面为圆弧。
4、 根据权利要求 1所述的折叠接头， 其特征在于， 所述第二折叠体（2) 的顶体为滚 筒轴（8), 折叠接头锁紧时， 所述顶杆（4)顶在所述滚筒轴（8)上。
5、 根据权利要求 1所述的折叠接头， 其特征在于， 所述第二折叠体（2) 的顶体为滚 筒轴（8)和套设在滚筒轴（8)上的轴套（10), 折叠接头锁紧时， 所述顶杆（4)顶在所 述轴套（ 10)上。
6、 根据权利要求 5所述的折叠接头， 其特征在于， 所述轴套（10) 的横截面为圆环、 偏心圆环、 椭圆环或者设有圆孔的扇形。
7、 根据权利要求 6所述的折叠接头， 其特征在于， 所述轴套（10)较厚壁侧设有凸 台
8、 根据权利要求 1-7任一项所述的折叠接头， 其特征在于， 第一折叠体（1)和第二 折叠体（ 1 )上分别设有相对应的突起（ 12 )和凹槽。
9、 根据权利要求 1-7任一项所述的折叠接头， 其特征在于， 所述手柄 （3)前端中心 线和尾端的中心线具有一定的夹角。
10、 根据权利要求 1-7任一项所述的折叠接头， 其特征在于， 还包括手柄限位结构。
PCT/CN2012/072595 2011-03-22 2012-03-20 一种折叠接头 WO2012126348A1 (zh)

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Application Number Priority Date Filing Date Title
CN2011200864814U CN202029968U (zh) 2011-03-22 2011-03-22 一种折叠接头
CN201120086481.4 2011-03-22

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WO2012126348A1 true WO2012126348A1 (zh) 2012-09-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202029968U (zh) * 2011-03-22 2011-11-09 大行科技(深圳)有限公司 一种折叠接头
CN106032159A (zh) * 2016-04-07 2016-10-19 奎泽范(天津)科技发展有限公司 一种具有可折叠转向方向杆的代步车辆

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CN201712735U (zh) * 2010-06-18 2011-01-19 莫业良 一种顶杆式折叠器
CN201800843U (zh) * 2010-10-12 2011-04-20 黄华平 一种自行车折叠器
CN201971102U (zh) * 2011-03-15 2011-09-14 郭伟 一种折叠自行车折叠关节结构
CN202029968U (zh) * 2011-03-22 2011-11-09 大行科技(深圳)有限公司 一种折叠接头

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Publication number Priority date Publication date Assignee Title
JP2005001421A (ja) * 2003-06-09 2005-01-06 Tobu:Kk 折畳み式自転車
CN201240477Y (zh) * 2008-07-22 2009-05-20 徐达来 折叠接头
CN201457626U (zh) * 2009-06-05 2010-05-12 深圳市富厚机械有限公司 车架折叠器
CN201484590U (zh) * 2009-06-24 2010-05-26 崔国良 自行车车架折叠器
CN201559768U (zh) * 2009-10-23 2010-08-25 黄华平 一种折叠器
CN201685936U (zh) * 2009-11-17 2010-12-29 新信利自行车车料(深圳)有限公司 折叠器
CN201712735U (zh) * 2010-06-18 2011-01-19 莫业良 一种顶杆式折叠器
CN201800843U (zh) * 2010-10-12 2011-04-20 黄华平 一种自行车折叠器
CN201971102U (zh) * 2011-03-15 2011-09-14 郭伟 一种折叠自行车折叠关节结构
CN202029968U (zh) * 2011-03-22 2011-11-09 大行科技(深圳)有限公司 一种折叠接头

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