WO2022206220A1 - 一种把立管锁紧装置 - Google Patents

一种把立管锁紧装置 Download PDF

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Publication number
WO2022206220A1
WO2022206220A1 PCT/CN2022/077449 CN2022077449W WO2022206220A1 WO 2022206220 A1 WO2022206220 A1 WO 2022206220A1 CN 2022077449 W CN2022077449 W CN 2022077449W WO 2022206220 A1 WO2022206220 A1 WO 2022206220A1
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Prior art keywords
standpipe
handlebar
locking device
end cover
nut
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PCT/CN2022/077449
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English (en)
French (fr)
Inventor
莫怡平
韩德玮
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深圳市美大行科技有限公司
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Application filed by 深圳市美大行科技有限公司 filed Critical 深圳市美大行科技有限公司
Publication of WO2022206220A1 publication Critical patent/WO2022206220A1/zh

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    • 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
    • B62K21/00—Steering devices
    • B62K21/12—Handlebars; Handlebar stems
    • B62K21/16—Handlebars; Handlebar stems having adjustable parts therein

Definitions

  • the invention relates to a vehicle handlebar riser, in particular to a device for mutually locking or unlocking the handlebar riser and the vehicle front fork riser.
  • the handlebar riser includes a handlebar handlebar for hand-held and a handlebar riser arranged in the middle of the handlebar handlebar and used for connecting the front fork riser.
  • the standpipe and the front fork standpipe are divided into fixed structure and detachable structure. The former has high structural strength but low scope of application, while the latter can fully meet the needs of different users by adjusting the relative height. Wide applicability.
  • the end of the riser extending into the front fork riser is set to be inclined, and an inclined nut is arranged in the front fork riser, and then the tie rod screw is arranged Pull the oblique nut toward the end of the handlebar, so that their bevels are pressed against each other to act radially, so that the outer wall of the handlebar and the bevel are pressed against the inner wall of the front fork riser and fixed to each other.
  • the purpose of the present invention is to provide a handlebar riser locking device capable of conveniently and safely adjusting the handlebar riser, so as to improve the convenience of operation, avoid damage to parts, and improve the service life and safety of the vehicle.
  • the handlebar standpipe locking device of the present invention comprises a handlebar standpipe whose one end is arranged in the front fork standpipe, the other end of the handlebar standpipe is provided with an end cover, and the end cover is opened with an end cover that communicates with the handlebar standpipe
  • Thrust limit mechanism is another tension block arranged in the front fork riser, and one end of the tie rod passes through the end cover hole and is connected with the tension block, and the other end of the tie rod is provided with a tension block that interacts with the end cover and exerts tension or force on the tension block.
  • the standpipe locking device of the present invention fixedly connects one end of the standpipe with the end cover and the other end cooperates with the tensioning block.
  • the limit mechanism at the other end exerts a force on the tensioning block through the pull rod, so that the standpipe and the front fork standpipe are pressed and fixed to each other, or the tensioning block that has been pressed against the standpipe is pushed away. Lock or unlock the standpipe.
  • Figure 1 is a schematic diagram of the structure of the standpipe locking device.
  • Figures 2 and 3 are schematic diagrams of the connection structure between the seat tube locking device and the front fork seat tube.
  • Figure 4 is a schematic diagram of the connection structure of the vertical pipe and the inclined nut.
  • FIG. 5 is a schematic structural diagram of Embodiment 2 of the standpipe locking device.
  • FIG. 6 is a schematic structural diagram of Embodiment 3 of the standpipe locking device.
  • Embodiment 4 of the standpipe locking device are schematic structural diagrams of Embodiment 4 of the standpipe locking device.
  • directional indications such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, vertical, counterclockwise, clockwise, circumferential direction, radial direction, axial direction, etc.
  • the directional indication is only used to explain the relative positional relationship, movement situation, etc. When a change occurs, the directional indication also changes accordingly.
  • Embodiment 1 as shown in Figures 1-4.
  • a handlebar locking device comprising a handlebar 2, one end of which is arranged in a front fork riser 1, an end cover 4 is installed on the other end of the handlebar, and the end cover is provided with an end connected to the handlebar.
  • a limit mechanism that exerts a pulling or pushing force on the block.
  • the end of the tie rod 5 and the tension block 3 are connected or separated from each other by forward and reverse rotation, and the tie rod drives the tension block to move toward or away from the end cover 4 through rotation.
  • the tensioning block 3 is set as a nut with a screw hole, and the pull rod 5 is a screw screwed with the nut; The diameter is larger than the end cap hole.
  • the diameter of the tie rod cap is larger than the end cap hole on the end cap, so that it and the end cap are tightly pressed against each other; then the tension block can be driven to move the vertical pipe and press against each other through the rotation of the screw, so as to use the tension block to align the handle A radial force is applied to the end of the standpipe to press and fix the standpipe and the front fork standpipe to each other.
  • the locking device for the standpipe can easily release the tension block and the standpipe from the self-locking state.
  • the structure is simple and ingenious, the operation is easy, and the Damage to various parts greatly improves the service life and safety of the vehicle.
  • the end of the standpipe 2 located in the front fork standpipe 1 is inclined and arranged, the tightening block 3 is an oblique nut, and the side adjacent to the oblique nut and the handlebar standpipe is an inclined surface.
  • the screw rod passes through the end cover and is screwed with the oblique nut, and drives the oblique surface of the oblique nut to press the oblique surface of the end of the standpipe, so that the oblique nut and the standpipe generate radial pressure relative to each other, so that the outer surface of the oblique nut and the standpipe is pressed.
  • the wall surface and the inner wall of the front fork standpipe are pressed and locked with each other to realize the locking of the standpipe.
  • the pull rod 5 is provided with a circlip groove inwardly recessed, and the protrusion 6 is a circlip and is installed in the circlip groove; in addition, the end cover 4 and the handlebar 2 are threaded Screw connection, this kind of structure has high connection strength, and is easy to assemble and disassemble.
  • the second embodiment is shown in FIG. 5 .
  • a standpipe locking device one end of the standpipe 2 located in the front fork standpipe 1 is provided with a number of through grooves 21 connected from the outer wall to the inner wall along the circumferential direction;
  • the tightening block 3 is a conical cone nut, The top end of the cone nut faces the handlebar and can be inserted into the handlebar.
  • the diameter of the bottom end of the cone nut is larger than the inner diameter of the end of the handlebar; in addition, the outer wall of the cone nut is provided with several strips that can be respectively inserted into different through grooves 21
  • a conical cone nut is used for the tightening block, and radial pressure is applied by inserting the top end of the conical nut into the handlebar standpipe end, so that the handlebar standpipe end with a through groove is formed. The deformation of the outward turn occurs, and then the seat tube and the front fork seat tube are pressed and locked with each other.
  • the cooperation between the handlebar and the taper nut is easier to lock with the front fork standpipe through deformation, which is beneficial to improve the convenience of operation and the connection strength. Slippage is beneficial to improve the connection stability between the two.
  • pins as protrusions can also meet the needs of mutual abutment with the end caps, so that the taper nut is driven by the screw to withdraw from the end of the standpipe, unlocking the two and realizing the adjustment of the standpipe.
  • the third embodiment is shown in FIG. 6 .
  • An adjustable handlebar standpipe structure one end of the standpipe 2 located in the front fork standpipe 1 is provided with a number of through grooves 21 connected from the outer wall to the inner wall along the circumferential direction; the tightening block 3 is a spherical spherical nut; the rest Same as Example 1.
  • the spherical nut exerts an outward tightening force on the handlebar standpipe end by inserting the spherical surface into the handlebar standpipe end, so as to connect the handlebar standpipe and the front fork standpipe to each other. fixed.
  • Embodiment 4 as shown in Figures 7-9.
  • a standpipe locking device, the limiting mechanism is a quick release assembly, including a concave platform 42 disposed on the side of the end cover 4 facing away from the tension block 3, and a concave platform 42 disposed at the end of the tie rod 5 and located at the concave platform.
  • the collar 51 and a wrench 8 with a cam at one end thereof are hinged to the concave platform through the eccentric shaft member 7; the rest is the same as the first embodiment.
  • the quick-release assembly usually uses a pipe clamp to fix two mutually sleeved pipe fittings.
  • This embodiment uses the principle of the quick-release assembly.
  • the cam at the end of the wrench is pressed against the end cover to exert an interaction force, and on the other hand, the wrench exerts an interaction force.
  • the wrench acts on the tie rod through the eccentric shaft member and the collar.
  • the tie rod can be driven to move in the axial direction when the wrench rotates; when the cam on the wrench rotates to the maximum diameter
  • the tension block connected to the tie rod will be in maximum contact with the standpipe, so that the standpipe will be clamped on the front fork standpipe.

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

Abstract

一种把立管锁紧装置，在前叉立管(1)内设置涨紧块(3)，在把竖管(2)位于前叉立管(1)外的一端设置端盖(4)，拉杆(5)穿过端盖(4)与涨紧块(3)螺接；拉杆(5)的另一端设置有与端盖(4)相互作用并对涨紧块(3)施加作用力的限位机构。限位机构可以是快拆组件，通过手柄(8)快速进行锁紧或解锁；限位机构也可以是设置于拉杆(5)上位于端盖孔(41)内侧的凸起物(6)，使得拉杆(5)向外旋动时形成限位，使拉杆(5)螺丝的转动变为对涨紧块(3)的推力，从而将涨紧块(3)与把竖管(2)分离，实现解锁。通过把立管锁紧装置的使用，可以极大地提高把竖管(2)调节的操作方便性，且不会对各零部件造成损伤，极大地提高了车辆的使用寿命和安全性。

Description

一种把立管锁紧装置 技术领域
本发明涉及车辆把立管，特别是涉及一种将把立管与车辆前叉立管相互锁紧或解锁的装置。
背景技术
把立管包括供手持的把横管和设置于把横管中部用以连接前叉立管的把竖管。把立管与前叉立管分为固定式结构和可装拆式结构，前者的结构强度交高但适用范围低，后者则能通过调节相对高度而充分满足不同使用者的需要，具有更广的适用性。
现有把立管和前叉立管之间的可装拆式结构，一般将把竖管伸入前叉立管的一端设置为倾斜，同时在前叉立管内设置斜螺母，然后通过拉杆螺丝将斜螺母拉向把竖管末端，从而使它们的斜面相互挤压而朝向径向作用力，进而使把竖管和斜面的外壁面抵紧前叉立管的内壁并相互固定。当需要调整把立管的高低或进行拆卸时，需要先旋松拉杆螺丝，然后对拉杆螺丝的顶端进行敲击以施加冲击力，利用该轴向的冲击力将斜螺母与把竖管分离，从而解除斜螺母与把竖管的自锁状态，此后才能相应地调节把立管。该种结构虽然能够实现可装拆和调节，但不仅其操作极为不便，还很容易对拉杆螺丝和斜螺母造成损伤，导致拉杆螺丝弯曲，或者拉杆螺丝和斜螺母的螺纹受损。
发明内容
本发明的目的在于提供一种能够方便、安全地调节把立管的把立管锁紧装置，以提高操作方便性，并避免损坏零部件，提高了车辆的使用寿命和安全性。
本发明所述的把立管锁紧装置，包括其中一端设置于前叉立管内的把竖管，把竖管的另一端安装有端盖，端盖上开有连通至把竖管内的端盖孔，另有设置于前叉立管内的涨紧块，和一端穿过端盖孔并与涨紧块连接的拉杆，拉杆的另一端设置有与端盖相互作用并对涨紧块施加拉力或推力的限位机构。
本发明所述的把立管锁紧装置，把竖管的一端与端盖固定连接而另一端与涨紧块相互配合，拉杆穿过端盖和把竖管后与涨紧块连接，而拉杆另一端的限位机构则通过拉杆对涨紧块施加作用力，使把竖管与前叉立管相互压紧固定，或将已与把竖管相互压紧的涨紧块推离，从而实现把竖管的锁紧或解锁。通过该把立管锁紧装置的使用，可以极大地提高把竖管调节的操作方便性，且不会对各零部件造成损伤，极大地提高了车辆的使用寿命和安全性。
附图说明
图1是把立管锁紧装置的结构示意图。
图2、3是把立管锁紧装置与前叉立管的连接结构示意图。
图4把竖管与斜螺母的连接结构示意图。
图5是把立管锁紧装置实施例二的结构示意图。
图6是把立管锁紧装置实施例三的结构示意图。
图7-9是把立管锁紧装置实施例四的结构示意图。
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后、顶、底、内、外、垂向、横向、纵向，逆时针、顺时针、周向、径向、轴向……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”或者“第二”等的描述，则该“第一”或者“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
实施例一，如图1-4所示。
一种把立管锁紧装置，包括其中一端设置于前叉立管1内的把竖管2，把竖管的另一端安装有端盖4，端盖上开有连通至把竖管内的端盖孔41；另有设置于前叉立管内的涨紧块3，和一端穿过端盖孔并与涨紧块连接的拉杆5，拉杆的另一端设置有与端盖相互作用并对涨紧块施加拉力或推力的限位机构。
所述的把立管锁紧装置，拉杆5的端部与涨紧块3通过正反旋转相互连接或分离，且拉杆通过旋转驱动涨紧块朝向或背向端盖4方向移动。如将涨紧块3设置为设有螺孔的螺母，拉杆5为与螺母螺接的螺杆；限位机构包括设置于拉杆上位于端盖孔41内侧处的凸起物6，且凸起物的直径大于端盖孔。
拉杆帽的直径大于端盖上的端盖孔，使得其与端盖相互抵紧；然后通过螺杆的转动即 可带动涨紧块超把竖管移动并相互抵紧，从而利用涨紧块对把竖管端部施加径向作用力，使把竖管与前叉立管相互压紧固定。当需要调节或拆卸把立管时，旋松拉杆，此时的涨紧块与把竖管依然处于自锁状态；然后继续向外旋动拉杆，直至安装于其上的凸起物与端盖相抵；此后，随着拉杆的继续旋动，拉杆无法继续向外退出端盖，而是在端盖的作用下对涨紧块施加背向端盖的推力，直至涨紧块逐渐退出自锁状态；此时，把竖管也将同样退出自锁，可以相对前叉立管移动或转动，满足调节或拆卸要求。该种把立管锁紧装置，通过端盖、拉杆和凸起物的配合，即可方便地使涨紧块和把竖管解除自锁状态，其结构简单且巧妙，操作容易，且不会对各零部件造成损伤，极大地提高了车辆的使用寿命和安全性。
所述的把立管锁紧装置，把竖管2位于前叉立管1内的一端倾斜设置，涨紧块3为斜螺母，斜螺母与把竖管相邻的一侧为斜面。螺杆穿过端盖与斜螺母螺接，并带动斜螺母的斜面压向把竖管端部的斜面，使斜螺母和把竖管相对产生径向压力，从而使斜螺母和把竖管的外壁面与前叉立管的内壁相互压紧锁定，实现把竖管的锁紧。当需要调节或拆卸把立管时，旋松螺杆直至安装于其上的凸起物与端盖相抵，螺杆受到端盖的阻挡而对涨紧块施加背向端盖的推力，直至涨紧块退出自锁状态，把竖管即可进行调节。
所述的把立管锁紧装置，拉杆5上设置有向内凹陷的卡簧槽，凸起物6为卡簧并安装于卡簧槽内；另外，端盖4与把竖管2通过螺纹螺接，该种结构连接强度较高，且装拆操作方便。
实施例二，如图5所示。
一种把立管锁紧装置，把竖管2位于前叉立管1内的一端沿周向设置有若干条从外壁连通至内壁的通槽21；涨紧块3为锥形的锥螺母，锥螺母的顶端朝向把竖管并可插入把竖管内，锥螺母的底端直径大于把竖管端部的内径；另外，锥螺母的锥面外壁设有若干条可分别卡入不同通槽21内的定位杆31；再者，拉杆5上设有销钉孔，凸起物6为销钉并安装于销钉孔内；其余与实施例一相同。
所述的把立管锁紧装置，涨紧块使用锥形的锥螺母，通过该锥螺母的顶端插入把竖管端部而施加径向压力，从而使带有通槽的把竖管端部发生向外翻的形变，进而使把竖管与前叉立管相互压紧锁定。该种把竖管和锥螺母的配合更加容易通过形变而与前叉立管锁紧，有利于提高操作便利性和连接强度，通过定位杆与通槽的配合还可以避免锥螺母相对把竖管打滑，有利于提高两者之间的连接稳定性。另外，采用销钉作为凸起物，同样可以满足与端盖相互抵紧的需要，从而通过螺杆带动锥螺母退出把竖管末端，解除两者的锁定并实现把竖管的调节。
实施例三，如图6所示。
一种可调式把立管结构，把竖管2位于前叉立管1内的一端沿周向设置有若干条从外壁连通至内壁的通槽21；涨紧块3为球形的球形螺母；其余与实施例一相同。
所述的把立管锁紧装置，球形螺母通过将球面插入把竖管端部之内而对把竖管端部施加向外的涨紧作用力，以将把竖管与前叉立管相互固定。
实施例四，如图7-9所示。
一种把立管锁紧装置，所述限位机构为快拆组件，包括设置于端盖4背向涨紧块3一侧的凹台42，设置于拉杆5端部且位于凹台处的套环51，还有其中一端设有凸轮的扳手8，扳手和套环通过偏心转轴件7铰接于凹台处；其余与实施例一相同。
快拆组件常通过管夹固定两根相互套接的管件，本实施方式利用快拆组件的原理，扳手在转动过程中一方面通过其端部的凸轮与端盖相抵而施加相互作用力，另一方面又通过偏心转轴件和套环对拉杆施加作用，由于偏心转轴件的转轴端并非位于其圆心位置，使得扳手转动时可以带动拉杆沿轴向移动；当扳手上的凸轮转动至最大直径处时，拉杆也移动至最外端处，连接于拉杆上的张紧块也就与把竖管实现最大程度的抵紧，从而将把竖管夹紧于前叉立管上。通过该种快拆组件的使用，可以极大地提高操作方便性。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (11)

  1. 一种把立管锁紧装置，包括其中一端设置于前叉立管(1)内的把竖管(2)，其特征在于：把竖管的另一端安装有端盖(4)，端盖上开有连通至把竖管内的端盖孔(41)；另有设置于前叉立管内的涨紧块(3)，和一端穿过端盖孔并与涨紧块连接的拉杆(5)，拉杆的另一端设置有与端盖相互作用并对涨紧块施加拉力或推力的限位机构。
  2. 根据权利要求1所述的把立管锁紧装置，其特征在于：拉杆(5)的端部与涨紧块(3)通过正反旋转相互连接或分离，且拉杆通过旋转驱动涨紧块朝向或背向端盖(4)方向移动。
  3. 根据权利要求2所述的把立管锁紧装置，其特征在于：涨紧块(3)为设有螺孔的螺母，拉杆(5)为与螺母螺接的螺杆。
  4. 根据权利要求1所述的把立管锁紧装置，其特征在于：限位机构包括设置于拉杆上位于端盖孔(41)内侧处的凸起物(6)，且凸起物的直径大于端盖孔。
  5. 根据权利要求4所述的把立管锁紧装置，其特征在于：拉杆(5)上设置有向内凹陷的卡簧槽，凸起物(6)为卡簧并安装于卡簧槽内。
  6. 根据权利要求4所述的把立管锁紧装置，其特征在于：拉杆(5)上设有销钉孔，凸起物(6)为销钉并安装于销钉孔内。
  7. 根据权利要求1所述的把立管锁紧装置，其特征在于：限位机构为快拆组件，包括设置于端盖(4)背向涨紧块(3)一侧的凹台(42)，通过偏心转轴件(7)铰接于凹台处的手柄(8)，拉杆(5)背向涨紧块的一端设有套于偏心转轴件上的套环(51)。
  8. 根据权利要求1-7任一权利要求所述的把立管锁紧装置，其特征在于：把竖管(2)位于前叉立管(1)内的一端倾斜设置，涨紧块(3)为斜螺母，斜螺母与把竖管相邻的一侧为斜面。
  9. 根据权利要求1-7任一权利要求所述的把立管锁紧装置，其特征在于：把竖管(2)位于前叉立管(1)内的一端沿周向设置有若干条从外壁连通至内壁的通槽(21)；涨紧块(3)为锥形的锥螺母，锥螺母的顶端朝向把竖管并可插入把竖管内，锥螺母的底端直径大于把竖管端部的内径。
  10. 根据权利要求9所述的把立管锁紧装置，其特征在于：锥螺母的锥面外壁设有若干条可分别卡入不同通槽(21)内的定位杆(31)。
  11. 根据权利要求1-7任一权利要求所述的把立管锁紧装置，其特征在于：把竖管(2)位于前叉立管(1)内的一端沿周向设置有若干条从外壁连通至内壁的通槽(21)；涨紧块(3)为球形的球形螺母。
PCT/CN2022/077449 2021-04-01 2022-02-23 一种把立管锁紧装置 WO2022206220A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN113147986A (zh) * 2021-04-01 2021-07-23 深圳市美大行科技有限公司 一种把立管锁紧装置

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Publication number Priority date Publication date Assignee Title
GB769028A (en) * 1954-08-26 1957-02-27 Robert Edgar Morgan Bicycle handlebars
JP2000053061A (ja) * 1998-08-11 2000-02-22 Ikujin Jitsugyo Kofun Yugenkoshi 自転車におけるハンドルバーの取り付け構造及び補助輪等の取り付け構造
US20100180713A1 (en) * 2009-01-21 2010-07-22 Wei-Chen Tseng Expanding and retracting structure for a control shaft of a bicycle
TW201132546A (en) * 2010-03-30 2011-10-01 wei-zhen Ceng Adjustable handlebar lifter of bicycle
TWM454973U (zh) * 2010-03-30 2013-06-11 Sheng-Fu Zeng 自行車可調式龍頭升降器
CN203727585U (zh) * 2014-02-24 2014-07-23 河北小海豚童车有限公司 一种免工具解锁把立
CN113147986A (zh) * 2021-04-01 2021-07-23 深圳市美大行科技有限公司 一种把立管锁紧装置
CN214875357U (zh) * 2021-04-01 2021-11-26 深圳市美大行科技有限公司 一种把立管锁紧装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB769028A (en) * 1954-08-26 1957-02-27 Robert Edgar Morgan Bicycle handlebars
JP2000053061A (ja) * 1998-08-11 2000-02-22 Ikujin Jitsugyo Kofun Yugenkoshi 自転車におけるハンドルバーの取り付け構造及び補助輪等の取り付け構造
US20100180713A1 (en) * 2009-01-21 2010-07-22 Wei-Chen Tseng Expanding and retracting structure for a control shaft of a bicycle
TW201132546A (en) * 2010-03-30 2011-10-01 wei-zhen Ceng Adjustable handlebar lifter of bicycle
TWM454973U (zh) * 2010-03-30 2013-06-11 Sheng-Fu Zeng 自行車可調式龍頭升降器
CN203727585U (zh) * 2014-02-24 2014-07-23 河北小海豚童车有限公司 一种免工具解锁把立
CN113147986A (zh) * 2021-04-01 2021-07-23 深圳市美大行科技有限公司 一种把立管锁紧装置
CN214875357U (zh) * 2021-04-01 2021-11-26 深圳市美大行科技有限公司 一种把立管锁紧装置

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