WO2016023371A1 - 折叠椅钢管用锁止机构 - Google Patents

折叠椅钢管用锁止机构 Download PDF

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Publication number
WO2016023371A1
WO2016023371A1 PCT/CN2015/074995 CN2015074995W WO2016023371A1 WO 2016023371 A1 WO2016023371 A1 WO 2016023371A1 CN 2015074995 W CN2015074995 W CN 2015074995W WO 2016023371 A1 WO2016023371 A1 WO 2016023371A1
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WIPO (PCT)
Prior art keywords
lock
hole
cap
steel pipe
end surface
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PCT/CN2015/074995
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English (en)
French (fr)
Inventor
孙本龙
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孙本龙
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Publication date
Application filed by 孙本龙 filed Critical 孙本龙
Publication of WO2016023371A1 publication Critical patent/WO2016023371A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment

Definitions

  • the utility model relates to a locking mechanism for a folding chair steel pipe.
  • the existing folding chair steel pipe adopts a rocker switch type locking mechanism, and the mechanism has the defects of complicated structure, inconvenient installation and volume bloat. Locking mechanism.
  • the device is a set of chair locking mechanism, which converts the original rocker switch type locking mechanism into a button type locking mechanism.
  • the purpose of the utility model is to provide a locking mechanism for a folding chair steel pipe, which adopts a button type locking mechanism, which reduces the product cost, simplifies the installation step, reduces the number of parts and increases the locking reliability.
  • a lock mechanism for a folding chair steel pipe comprising a lock case, a lock core, a limit cap and a spring, wherein the upper end surface of the lock case has a longitudinal hole penetrating through the lock core, the lock core is built in the lock case, and the lock is a top end of the core extends out of the upper end surface of the lock case; the side surface of the lock case further has a transverse hole staggered with the longitudinal hole, the steel pipe runs through the transverse hole, and the hole diameter of the transverse hole is consistent with the diameter of the steel pipe, the lock core Corresponding position is provided with a long through hole through which the steel pipe penetrates, the aperture of the long through hole is larger than the diameter of the steel pipe; the limit cap and the spring are arranged between the lower end surface of the lock core and the adjacent lock case, The lower end surface of the lock core corresponds to the limit cap and is provided with a limit hole, and the cap of the limit cap is worn Through the limit hole, the cap of the limit cap abuts against the lower
  • the brim has an elongated structure.
  • the lock case is provided with a lug connected to the folding chair, and the lug is provided with a mounting hole.
  • the working principle of the utility model is that the through hole on the lock case is the same as the diameter of the steel pipe, so the lock case can only drive the lock core, the spring and the limit cap in the lock body to move up and down along the axis of the steel pipe.
  • the lock cylinder is pulled into the lock case against the limit cap of the steel pipe, and the spring is pressed into the limit cap; when the limit hole coincides with the limit cap Under the action of the spring, the limit cap is pushed into the steel pipe to limit the movement of the lock case; pressing the lock core to disengage the limit cap from the limit hole of the steel pipe can adjust the position of the steel pipe.
  • the utility model has the advantages that: 1.
  • the button type locking mechanism reduces the weight by 25% and the volume by 35%, thereby reducing the product cost, simplifying the installation step, reducing the number of parts, and increasing the locking reliability. 2; simple structure, low manufacturing cost, good use effect.
  • FIG. 1 is a schematic exploded view of the overall structure of the present invention
  • FIG. 2 is a schematic view showing the structure of a steel pipe embedded in a lock cylinder
  • Figure 3 is a schematic view of the separation of the steel pipe from the lock cylinder.
  • a lock mechanism for a folding chair steel pipe includes a lock case 1, a lock core 2, a limit cap 3 and a spring 4, and the upper end surface of the lock case has a longitudinal hole penetrating through the lock cylinder.
  • the lock core is built in the lock case, and the top end of the lock core extends from the upper end surface of the lock case; the side surface of the lock case also has a transverse hole 11 interlaced with the longitudinal hole,
  • the steel pipe 5 penetrates the transverse hole, the diameter of the transverse hole is the same as the diameter of the steel pipe, and the corresponding position of the lock cylinder is opened with a long through hole 21 through which the steel pipe penetrates, and the diameter of the long through hole is larger than that of the steel pipe
  • the aperture is provided; the limiting cap and the spring are disposed between the lower end surface of the lock cylinder and the adjacent lock case, and the lower end surface of the lock core is provided with a limiting hole 22 corresponding to the limiting cap, and the cap of the limiting cap is worn Through the limit hole, the cap 31 of the limiting cap abuts against the lower end surface of the lock cylinder, and one end of the spring abuts against the inner wall of the lower end surface of the lock case, and the other end a

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  • Mutual Connection Of Rods And Tubes (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

一种折叠椅钢管用锁止机构，包括有锁壳(1)、锁芯(2)、限位帽(3)和弹簧(4)，所述锁壳(1)上端面开有贯穿锁芯的纵向孔，所述锁芯(2)内置于锁壳(1)内，锁芯(2)的顶端延伸出锁壳(1)上端面；所述锁壳(1)侧面还开有与纵向孔交错的横向孔(11)，所述钢管(5)贯穿所述横向孔(11)，所述横向孔(11)的孔径与钢管(5)孔径一致，所述锁芯(2)对应位置开有钢管(5)贯穿的长条型通孔(21)，所述长条型通孔(21)的孔径大于钢管(5)的孔径；锁芯(2)的下端面与相邻锁壳(1)之间设有所述的限位帽(3)和弹簧(4)，所述锁芯(2)下端面对应限位帽(3)设有限位孔(22)，限位帽(3)的帽体穿过限位孔(22)，限位帽(3)的帽檐(31)与锁芯(2)下端面相抵，弹簧(4)一端与锁壳(1)下端面内壁相抵，另一端与帽体内壁相抵。采用上述按键式锁止机构，简化了安装步骤，减少了零件数量，增加了锁止可靠性。

Description

折叠椅钢管用锁止机构 技术领域
本实用新型涉及一种折叠椅钢管用锁止机构。
背景技术
现有折叠椅钢管采用翘板开关式锁止机构，这种机构存在结构复杂、安装不便、体积臃肿的缺陷。锁止机构。本装置是一套椅子锁止机构，它将原翘板开关式锁止机构改为按键式锁止机构。
发明内容
本实用新型的目的是：提供一种折叠椅钢管用锁止机构，采用按键式锁止机构，降低了产品成本，简化了安装步骤，减少了零件数量，增加了锁止可靠性。
为实现上述目的，本实用新型是通过以下技术方案来实现的：
一种折叠椅钢管用锁止机构，包括有锁壳、锁芯、限位帽和弹簧，所述锁壳上端面开有贯穿锁芯的纵向孔，所述锁芯内置于锁壳内，锁芯的顶端延伸出锁壳上端面；所述锁壳侧面还开有与纵向孔交错的横向孔，所述钢管贯穿所述横向孔，所述横向孔的孔径与钢管孔径一致，所述锁芯对应位置开有钢管贯穿的长条型通孔，所述长条型通孔的孔径大于钢管的孔径；锁芯的下端面与相邻锁壳之间设有所述的限位帽和弹簧，所述锁芯下端面对应限位帽设有限位孔，限位帽的帽体穿 过限位孔，限位帽的帽檐与锁芯下端面相抵，弹簧一端与锁壳下端面内壁相抵，另一端与帽体内壁相抵。
所述帽檐呈长条形结构。
所述锁壳上设有与折叠椅连接的凸耳，所述凸耳上设有安装孔。
本实用新型的工作原理是：锁壳上的通孔与钢管直径是一样大，因此锁壳只能带动其内的锁芯、弹簧、限位帽沿钢管轴线做上下运动。在未到钢管上的限位孔时，锁芯被顶着钢管的限位帽拉入锁壳内，而此时的弹簧被压入限位帽内；在限位孔与限位帽重合时，限位帽在弹簧的作用下，被顶入钢管内，从而限制锁壳的运动；按压锁芯，使限位帽脱离钢管的限位孔，即可调节钢管位置。
本实用新型的优点在于：1、采用按键式锁止机构，在重量上减少25％，体积上减少35％，从而降低了产品成本，简化了安装步骤，减少了零件数量，增加了锁止可靠性；2、结构简单、制造成本低、使用效果好。
附图说明
图1是本实用新型整体结构分解示意图；
图2是钢管嵌入锁芯结构示意图；
图3是钢管与锁芯脱离示意图。
具体实施方式
参照附图1-3，一种折叠椅钢管用锁止机构，包括有锁壳1、锁芯2、限位帽3和弹簧4，所述锁壳上端面开有贯穿锁芯的纵向孔，所述锁芯内置于锁壳内，锁芯的顶端延伸出锁壳上端面；所述锁壳侧面还开有与纵向孔交错的横向孔11， 所述钢管5贯穿所述横向孔，所述横向孔的孔径与钢管孔径一致，所述锁芯对应位置开有钢管贯穿的长条型通孔21，所述长条型通孔的孔径大于钢管的孔径；锁芯的下端面与相邻锁壳之间设有所述的限位帽和弹簧，所述锁芯下端面对应限位帽设有限位孔22，限位帽的帽体穿过限位孔，限位帽的帽檐31与锁芯下端面相抵，弹簧一端与锁壳下端面内壁相抵，另一端与帽体内壁相抵。所述帽檐呈长条形结构。所述锁壳上设有与折叠椅连接的凸耳12，所述凸耳上设有安装孔13。
以上实施例仅是本实用新型的个案，任何根据本实用新型精神所作的替换均应理解为未脱离本实用新型的保护范围。

Claims (3)

  1. 一种折叠椅钢管用锁止机构，其特征在于：包括有锁壳、锁芯、限位帽和弹簧，所述锁壳上端面开有贯穿锁芯的纵向孔，所述锁芯内置于锁壳内，锁芯的顶端延伸出锁壳上端面；
    所述锁壳侧面还开有与纵向孔交错的横向孔，所述钢管贯穿所述横向孔，所述横向孔的孔径与钢管孔径一致，所述锁芯对应位置开有钢管贯穿的长条型通孔，所述长条型通孔的孔径大于钢管的孔径；
    锁芯的下端面与相邻锁壳之间设有所述的限位帽和弹簧，所述锁芯下端面对应限位帽设有限位孔，限位帽的帽体穿过限位孔，限位帽的帽檐与锁芯下端面相抵，弹簧一端与锁壳下端面内壁相抵，另一端与帽体内壁相抵。
  2. 根据权利要求1所述的折叠椅钢管用锁止机构，其特征在于：所述帽檐呈长条形结构。
  3. 根据权利要求2所述的折叠椅钢管用锁止机构，其特征在于：所述锁壳上设有与折叠椅连接的凸耳，所述凸耳上设有安装孔。
PCT/CN2015/074995 2014-08-12 2015-03-24 折叠椅钢管用锁止机构 WO2016023371A1 (zh)

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CN204158034U (zh) * 2014-08-12 2015-02-18 孙本龙 折叠椅钢管用锁止机构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2369560Y (zh) * 1999-04-19 2000-03-22 好孩子集团公司 婴儿游戏床的收折装置
CN2369559Y (zh) * 1999-04-29 2000-03-22 昆山喔凯童车有限公司 童床
JP2003306066A (ja) * 2002-04-15 2003-10-28 Kanto Auto Works Ltd 遠隔操作式ヘッドレスト格納装置
US6837545B1 (en) * 2003-09-22 2005-01-04 Hsueh Yu Ho Chair arm with an adjustable height
CN101186187A (zh) * 2007-12-21 2008-05-28 重庆长安汽车股份有限公司 一种座椅靠背骨架
CN201705768U (zh) * 2010-07-02 2011-01-12 厦门友一金属有限公司 折叠椅活动扶手的连接组件
CN102670363A (zh) * 2012-04-23 2012-09-19 宁波乐拓金属科技有限公司 一种电动轮椅的车篷
CN204158034U (zh) * 2014-08-12 2015-02-18 孙本龙 折叠椅钢管用锁止机构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2369560Y (zh) * 1999-04-19 2000-03-22 好孩子集团公司 婴儿游戏床的收折装置
CN2369559Y (zh) * 1999-04-29 2000-03-22 昆山喔凯童车有限公司 童床
JP2003306066A (ja) * 2002-04-15 2003-10-28 Kanto Auto Works Ltd 遠隔操作式ヘッドレスト格納装置
US6837545B1 (en) * 2003-09-22 2005-01-04 Hsueh Yu Ho Chair arm with an adjustable height
CN101186187A (zh) * 2007-12-21 2008-05-28 重庆长安汽车股份有限公司 一种座椅靠背骨架
CN201705768U (zh) * 2010-07-02 2011-01-12 厦门友一金属有限公司 折叠椅活动扶手的连接组件
CN102670363A (zh) * 2012-04-23 2012-09-19 宁波乐拓金属科技有限公司 一种电动轮椅的车篷
CN204158034U (zh) * 2014-08-12 2015-02-18 孙本龙 折叠椅钢管用锁止机构

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