WO2023020074A1 - 自行车把立结构及自行车 - Google Patents

自行车把立结构及自行车 Download PDF

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Publication number
WO2023020074A1
WO2023020074A1 PCT/CN2022/096788 CN2022096788W WO2023020074A1 WO 2023020074 A1 WO2023020074 A1 WO 2023020074A1 CN 2022096788 W CN2022096788 W CN 2022096788W WO 2023020074 A1 WO2023020074 A1 WO 2023020074A1
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WO
WIPO (PCT)
Prior art keywords
hole
stem structure
bicycle
groove
structure according
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PCT/CN2022/096788
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English (en)
French (fr)
Inventor
张均
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深圳酷骑童趣科技有限公司
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Application filed by 深圳酷骑童趣科技有限公司 filed Critical 深圳酷骑童趣科技有限公司
Publication of WO2023020074A1 publication Critical patent/WO2023020074A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J11/00—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps
    • B62J11/10—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides
    • B62J11/13—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides specially adapted for mechanical cables
    • 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

Definitions

  • the utility model belongs to the technical field of bicycle parts, in particular to a bicycle stem structure and a bicycle.
  • the bicycle handlebar is the main control mechanism during the use of the bicycle, which can change the direction and speed of the bicycle.
  • an additional gear shifting structure can be installed as required. It is known that most of the current bicycle braking structures and shifting structures are driven and controlled by cables, and multiple cables are exposed during use. On the one hand, multiple cables are easily entangled with each other during the rotation of the handlebar On the other hand, the friction between the cable and the outer structure of the bicycle will cause the protective shell of the cable to break, reducing the service life of the braking structure or the shifting structure.
  • the utility model provides a bicycle stem structure and a bicycle with internal routing and completely separated cables.
  • the utility model also provides a bicycle stem structure, which includes a mounting seat, a shell and a standpipe,
  • the housing includes a first connecting piece extending to the front wheel and a second connecting piece extending to the rear wheel.
  • the first connecting piece is provided with a first through hole along its length, and the second connecting piece extends along its length.
  • a second through hole communicating with the first through hole is opened in the length direction.
  • the vertical pipe is located in the first through hole, and is spaced apart from the inner wall of the first through hole to form an annular cavity communicating with the second through hole.
  • the standpipe is provided with a third through hole along its axial direction.
  • the mounting seat is connected to the vertical pipe, and at least two threading holes through which cables can be threaded are opened on the mounting seat, and at least one threading hole is connected to the first threading hole.
  • the three through holes are in communication and at least one of the threading holes is in communication with the annular cavity.
  • the installation base includes a seat body connected to the vertical pipe and a cover detachably covered on the seat body, the seat body and the cover body surround A cavity is formed to communicate with the threading hole, the third through hole and the annular cavity respectively.
  • the seat body includes a connecting portion and a fixing portion for fixing the handlebar
  • the connecting portion includes an upper surrounding wall forming the cavity and is connected to the upper surrounding wall and A hollow column communicating with the cavity, the hollow column connected to the vertical pipe.
  • the hollow column is formed with a mounting hole and an avoidance groove along its axial direction, the installation hole communicates with the avoidance groove, the vertical pipe is passed through the installation hole and Enclosed with the avoidance groove, a wire passing hole communicated with the annular cavity is formed.
  • the inner wall of the hollow column extends radially inward to form a first limiting protrusion
  • the standpipe is provided with a limiting protrusion adapted to the first limiting protrusion. slot, and the first limiting protrusion is clamped in the limiting slot.
  • the cover is provided with a first groove and at least one first connection hole
  • the fixing part is provided with a second groove corresponding to the position of the first groove. and at least one second connecting hole corresponding to the position of the first connecting hole, the inside of the second groove extends radially inward to form a second limiting protrusion, and the handlebar passes through the first concave Between the slot and the second groove; the second connection hole is connected to the first connection hole by bolts.
  • the base body is provided with a card post
  • the cover body is provided with a card slot corresponding to the card post, and the card post and the card slot are detachable combined connection.
  • it further includes a nut and a washer for fixedly connecting the standpipe and the installation seat, and the nut and the washer are arranged in the cavity.
  • it also includes a semi-arc protrusion and a bearing arranged on the inner wall of the first connecting piece, and the bearing is sandwiched between the vertical pipe and the semi-arc protrusion between.
  • the utility model also provides a bicycle, which includes a brake assembly and the bicycle stem structure.
  • the brake assembly includes a front brake wire and a rear brake wire.
  • the third through hole passes through, and the rear brake wire passes through the other through hole and passes through the wire through hole and the annular cavity in sequence, and then passes through the second through hole.
  • the bicycle stem structure in this embodiment forms different passages for different cables through the cooperation of the separation standpipe and the housing.
  • one of the cables can pass through the threading hole and then pass through the third through hole, and the other
  • One cable enters through the other threading hole and passes through the threading hole and the annular cavity in turn, and then passes out from the second through hole, thereby realizing the complete separation of different cables and fundamentally avoiding the damage caused by cable twisting.
  • design the cable hole and avoidance groove to prevent the cable from bending, and avoid the internal cable breakage caused by the rupture of the outer protective layer of the cable during use.
  • the bicycle in this embodiment uses the bicycle stem structure, which can prevent cables from twisting, prolong the service life of brakes and/or transmissions, and make the appearance more beautiful.
  • Fig. 1 is the structural representation of bicycle in an embodiment
  • Fig. 2 is a schematic diagram of an exploded structure of a bicycle in an embodiment
  • Fig. 3 is a partially exploded schematic diagram of a bicycle in an embodiment
  • Fig. 4 is a schematic structural view of the mount in Fig. 1;
  • Fig. 5 is the structural representation of standpipe among Fig. 1;
  • the utility model provides a bicycle
  • the bicycle in this embodiment includes a brake assembly 2 and a bicycle stem structure 1 .
  • the brake assembly 2 can control the front brake and the rear brake respectively, and plays a braking role during the use of the bicycle.
  • the bicycle stem structure 1 can fix and support the grip on the one hand, and on the other hand can also be connected with the front fork of the bicycle to control the direction of travel of the front wheel of the bicycle.
  • the utility model also provides a bicycle stem structure 1, as shown in FIG.
  • the housing 4 includes a first connecting piece 41 extending to the front wheel and a second connecting piece 42 extending to the rear wheel.
  • the first connecting piece 41 is provided with a first passage along its length direction.
  • the hole 12 and the second connecting member 42 define a second through hole 13 communicating with the first through hole 12 along its length direction.
  • Both the first connecting member 41 and the second connecting member 42 are hollow structures.
  • the materials of the first connecting member 41 and the second connecting member 42 are not limited, and the material can be a common shell material in the field, such as Aluminum alloy, carbon fiber, etc.
  • the cable can extend through the first through hole 12 to the second through hole 13, and be connected with the braking structure of the rear wheel to realize the function of internal wiring.
  • the standpipe 5 is located in the first through hole 12, and is spaced apart from the inner wall of the first through hole 12 and forms an annular cavity 15 communicating with the second through hole 13.
  • the standpipe 5 is provided with a third through hole 14 along its axial direction;
  • the annular cavity 15 and the third through hole 14 allow cables to pass through freely, ensuring that the cables have enough room to move during use.
  • the mounting base 3 is connected to the vertical pipe 5, and is provided with at least two threading holes 31 through which cables can be threaded. In this embodiment, as shown in FIG. 2, one threading hole 31 communicates with the third through hole 14, and the other A threading hole 31 communicates with the annular cavity 15 .
  • the cables can be connected to the rear wheels through the first through hole 12 respectively through the threading hole 31, and can also be connected to the front wheel through the third through hole 14 to realize the separation of different cables and reduce the internal winding of the cables during use possibility.
  • the brake assembly 2 includes a front brake wire 21 and a rear brake wire 22, and a mechanical structure that drives the brake wire to move. out and be connected with the brake on the front wheel, and the rear brake wire 22 passes through another wire hole 31 and passes through the wire hole 19 and the annular cavity 15 successively, then passes through the second through hole 13 and connects with the vehicle brake on the rear wheel. gate connection.
  • the cable enters the cavity 16 of the mounting seat 3 through the threading hole 31, and most of the cable is located inside the bicycle stem structure 1, which can make the overall appearance of the bicycle simple and beautiful, and prevent the cable from contacting other structures during use, causing damage to the parts .
  • the mounting seat 3 includes a seat body 7 connected to the standpipe 5 and a cover body 6 detachably covered on the seat body 7 , the seat body 7 and the cover body 6 surrounds and forms a cavity 16 communicating with the threading hole 31 , the third through hole 14 and the annular cavity 15 respectively.
  • a partition structure can also be added in the cavity 16, which can also achieve the purpose of separating the cables.
  • the seat body 7 includes a connecting portion 71 and a fixing portion 72 for fixing the handlebar.
  • the connecting portion 71 includes an upper surrounding wall 711 forming the cavity 16 and is connected to the upper surrounding wall 711 and is connected with the upper surrounding wall 711.
  • the cavity 16 communicates with the hollow column 712
  • the hollow column 712 is connected to the standpipe 5 .
  • the structure of the hollow column 712 can ensure the stable connection between the vertical pipe 5 and the mounting seat 3, and prevent rotation and slippage during use.
  • the hollow column 712 is formed with an installation hole 17 and an avoidance groove 18 along its axial direction
  • the installation hole 17 communicates with the avoidance groove 18
  • the standpipe 5 is set in the installation hole 17 and connects with the avoidance groove.
  • 18 surrounds and forms a wire passing hole 19 communicating with the annular cavity 15 .
  • the interior of the bicycle cable is generally made of metal, which is prone to fatigue fracture after repeated bending.
  • the avoidance groove 18 can limit the cable and make the cable move axially in the cable hole 19 to further prevent The internal bend of the cable.
  • the inner wall of the hollow column 712 extends radially inward to form a first limiting protrusion 201 .
  • the standpipe 5 is provided with a limiting slot 202 adapted to the first limiting protrusion 201 .
  • the first limiting protrusion 201 is clamped in the limiting groove 202 , and the connection between the first limiting protrusion 201 and the limiting groove 202 can further ensure the fixed position of the standpipe 5 .
  • the standpipe 5 can also be provided with a limiting plane 51 recessed along the radial direction, and the limiting plane 51 can be connected with other structures of the bicycle. It should be noted that the limiting method mentioned in this embodiment is only one of the examples, and other common limiting means in the field should also be included in the protection scope of the present utility model.
  • the cover body 6 is provided with a first groove 61 and at least one first connection hole 62
  • the fixed portion 72 is provided with a groove corresponding to the position of the first groove 61
  • the second groove 721 and at least one second connecting hole 722 corresponding to the position of the first connecting hole 62, the inside of the second groove 721 extends radially inward to form a second limiting protrusion 723, and the handlebar is passed through
  • the second connection hole 722 is connected to the first connection hole 62 by bolts.
  • the second limiting protrusion 723 is mainly used to fix the angle of the handlebar to prevent twisting during use.
  • the bolt connection is a common fixing method in this technical field, the purpose is to make the cover body 6 and the seat body 7 connect stably, and it cannot be used as a limitation to the technical solution of the utility model.
  • a post 73 is provided on the base 7
  • a slot 63 corresponding to the post 73 is provided on the cover body 6 .
  • the post 73 and the slot 63 can be Detachable snap connection.
  • the purpose of the detachable snap connection is to adjust the positional relationship between the cables during maintenance.
  • the detachable connection structure can also be a common detachable connection scheme in the technical field such as screw connection and hinge connection.
  • FIG. 2 it also includes a nut 8 and a washer 9 for fixedly connecting the standpipe 5 and the mounting base 3 , and the nut 8 and the washer 9 are arranged in the cavity 16 .
  • the nut 8 and the washer 9 can also be arranged outside the standpipe 5 .
  • other connection methods not described in this embodiment, such as snap connection can also play the same role in the present utility model.
  • the present utility model in one embodiment, as shown in FIG. 3 , it also includes a semi-arc-shaped protrusion 11 and a bearing 10 arranged on the inner wall of the first connecting piece 41, and the bearing 10 is sandwiched between the standpipe 5 and the semi-arc-shaped Between the protrusions 11.
  • the bearing 10 can ensure that the stem can rotate freely around the shaft within the scope of use, and the semi-arc-shaped protrusion 11 can not only realize the fixing effect with other components, but also further limit the moving direction of the cable. If the above expected effects can be achieved, other forms of fixing structures should also be included in the scope of the present invention.

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

Abstract

一种自行车把立结构（1），包括安装座（3）、壳体（4）和竖管（5），壳体（4）包括延伸向前轮的第一连接件（41）与延伸向后轮的第二连接件（42），第一连接件沿其长度方向开设有第一通孔（12），第二连接件沿其长度方向开设有与第一通孔连通的第二通孔（13）；竖管位于第一通孔内，且与第一通孔内壁间隔设置并形成和第二通孔连通的环形腔（15），竖管延其轴向开设有第三通孔（14）；安装座连接在竖管上，安装座上开设有至少两个可穿线缆的穿线孔（31），至少一个穿线孔与第三通孔连通且至少一个穿线孔与环形腔连通。还涉及一种包括自行车把立结构的自行车，该自行车把立结构能实现不同线缆的完全分离，可避免使用过程中线缆相互绞缠和内线断裂。

Description

自行车把立结构及自行车 技术领域
本实用新型属于自行车部件技术领域，尤其涉及一种自行车把立结构及自行车。
背景技术
自行车把是自行车使用过程中的主要控制机构，能够改变自行车的行进方向与行进速度。除了常规自行车具有的制动结构，根据需求还可以额外安装变速结构。已知目前绝大多数的自行车制动结构和变速结构都由线缆带动控制，且在使用过程中多条线缆暴露在外，一方面，在车把转动过程中多条线缆容易相互绞缠影响使用，另一方面，线缆与自行车外部结构的摩擦会导致线缆的保护外壳破裂，减少制动结构或变速结构的使用寿命。
实用新型内容
鉴于以上问题，本实用新型提供一种内部走线，并且线缆完全分离的自行车把立结构及自行车。
本实用新型还提供一种自行车把立结构，包括安装座、壳体和竖管，
所述壳体包括延伸向前轮的第一连接件与延伸向后轮的第二连接件，所述第一连接件延其长度方向开设有第一通孔，所述第二连接件延其长度方向开设有与所述第一通孔连通的第二通孔。
在本实用新型的一实施例中，所述竖管位于所述第一通孔内，且与所述第一通孔内壁间隔设置并形成和所述第二通孔连通的环形腔，所述竖管延其轴向开设有第三通孔。
在本实用新型的一实施例中，所述安装座连接在所述竖管上，所述安装座上开设有至少两个可穿线缆的穿线孔，至少一个所述穿线孔与所述第三通孔连通且至少一个所述穿线孔与所述环形腔连通。
在本实用新型的一实施例中，所述安装座包括与所述竖管连接的座体和可拆卸地盖设在所述座体上的盖体，所述座体与所述盖体围合形成有与分别与所述穿线孔、所述第三通孔和所述环形腔连通的空腔。
在本实用新型的一实施例中，所述座体包括连接部和用于固定车把的固定部，所述连接部包括形成所述空腔的上围壁以及连接在所述上围壁并与所述空腔连通的空心柱，所述空心柱连接在所述竖管上。
在本实用新型的一实施例中，所述空心柱延其轴向形成有安装孔和避让槽，所述安装孔与所述避让槽连通，所述竖管穿设在所述安装孔内并与所述避让槽围合形成与所述环形腔连通的过线孔。
在本实用新型的一实施例中，所述空心柱内壁延径向向内延伸形成有第一限位凸起，所述竖管上开设有与所述第一限位凸起适应的限位槽，所述第一限位凸起卡设在所述限位槽内。
在本实用新型的一实施例中，所述盖体上开设有第一凹槽和至少一个第一连接孔，所述固定部上开设有与所述第一凹槽位置对应的第二凹槽和至少一个与所述第一连接孔位置对应的第二连接孔，所述第二凹槽内部延径向向内延伸形成有第二限位凸起，车把穿设在所述第一凹槽与所述第二凹槽之间；所述 第二连接孔与所述第一连接孔通过螺栓连接。
在本实用新型的一实施例中，所述座体上设有卡柱，所述盖体上开设有与所述卡柱对应的卡槽，所述卡柱与所述卡槽可拆卸式卡合连接。
在本实用新型的一实施例中，还包括用于固定连接所述竖管与所述安装座的螺母和垫片，所述螺母和所述垫片设置在所述空腔内。
在本实用新型的一实施例中，还包括设置在所述第一连接件内壁上的半弧形凸起和轴承，所述轴承夹设于所述竖管与所述半弧形凸起之间。
本实用新型还提供一种自行车，包括车闸组件以及所述的自行车把立结构，所述车闸组件包括前闸线和后闸线，所述前闸线自所述穿线孔穿入后经所述第三通孔穿出，所述后闸线经另一所述穿线孔穿入并依次经过所述过线孔和所述环形腔后自所述第二通孔穿出。
实施本实用新型实施例，将至少具有如下有益效果：
本实施例中的自行车把立结构通过分离竖管和壳体的配合形成供不同线缆通行的不同通道，具体为其中一条线缆可通过穿线孔穿入后经第三通孔穿出，另一条线缆经另一穿线孔穿入并依次经过过线孔和环形腔后自第二通孔穿出，由此实现不同线缆的完全分离，从根本上避免了线缆绞缠带来的问题；另外，设计过线孔和避让槽来防止线缆弯折，避免使用过程中线缆外保护层破裂导致的内线断裂。
本实施例中的自行车使用了所述自行车把立结构，能够防止线缆的绞缠，延长制动器和/或变速器的使用寿命，使外形更加美观。
附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一实施例中自行车的结构示意图；
图2为一实施例中自行车的分解结构示意图；
图3为一实施例中自行车的部分分解示意图；
图4为图1中安装座的结构示意图；
图5为图1中竖管的结构示意图；
图中：1、自行车把立结构；2、车闸组件；3、安装座；4、壳体；5、竖管；6、盖体；7、座体；8、螺母；9、垫片；10、轴承；11、半弧形凸起；12、第一通孔；13、第二通孔；14、第三通孔；15、环形腔；16、空腔；17、安装孔；18、避让槽；19、过线孔；201、第一限位凸起；202、限位槽；21、前闸线；22、后闸线；31、穿线孔；41、第一连接件；42、第二连接件；51、限位平面；61、第一凹槽；62、第一连接孔；63、卡槽；71、连接部；72、固定部；73、卡柱；711、上围壁；712、空心柱； 721、第二凹槽；722、第二连接孔；723、第二限位凸起。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型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实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，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，都属于本实用新型保护的范围。
需要说明，本实用新型实施例中所有方向性指示(诸如上、下、左、右、前、后……)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，如果所述特定姿态发生改变时，则所述方向性指示也相应地随之改变。
另外，在本实用新型中涉及“第一”、“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所述特征。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，也不在本实用新型要求的保护范围之内。
如图1所示，本实用新型提供一种自行车，本实施例中的自行车包括车闸组件2以及的自行车把立结构1。车闸组件2可分别控制前刹与后刹，在自行车使用过程中起到制动作用。自行车把立结构1一方面可固定和支撑握把，另一方面也可与自行车前叉连接，控制自行车前轮的行进方向。
本实用新型还提供一种自行车把立结构1，如图2所示，包括安装座3、壳体4和竖管5。
在本实用新型的一实施例中，壳体4包括延伸向前轮的第一连接件41与延伸向后轮的第二连接件42，第一连接件41延其长度方向开设有第一通孔12，第二连接件42延其长度方向开设有与第一通孔12连通的第二通孔13。第一连接件41和第二连接件42均为空心结构，本实施例中对第一连接件41和第二连接件42的材质不做限定，其材质可为本领域常见的外壳材质，例如铝合金、碳纤维等。使用时线缆能经第一通孔12向第二通孔13延伸，并与后轮的制动结构连接，实现内部走线的功能。竖管5位于第一通孔12内，且与第一通孔12内壁间隔设置并形成和第二通孔13连通的环形腔15，竖管5延其轴向开设有第三通孔14；环形腔15与第三通孔14可供线缆自由穿行，保证使用过程中线缆有足够的移动空间。安装座3连接在竖管5上，并开设有至少两个可穿线缆的穿线孔31，在本实施例中，如图2所示，一个穿线孔31与第三通孔14连通，另一个穿线孔31与环形腔15连通。线缆经穿线孔31可分别经第一通孔12与后轮连接，也可以经第三通孔14与前轮连接，实现不同线缆之间的分离，减少使用过程中线缆在内部缠绕的可能性。
对于本实用新型中的自行车，车闸组件2包括前闸线21和后闸线22，以及带动闸线运动的机械结构，前闸线21自穿线孔31穿入后经第三通孔14穿出并与前轮上的车闸连接，后闸线22经另一穿线孔 31穿入并依次经过过线孔19和环形腔15后自第二通孔13穿出并与后轮上的车闸连接。线缆经穿线孔31后进入安装座3的空腔16，线缆大部分位于自行车把立结构1内部，可使自行车整体外观简洁美观，在使用时防止线缆与其他结构接触，造成零件损毁。
在本实用新型的一实施例中，如图4所示，安装座3包括与竖管5连接的座体7和可拆卸地盖设在座体7上的盖体6，座体7与盖体6围合形成有与分别与穿线孔31、第三通孔14和环形腔15连通的空腔16。在其他实施例中，穿线孔31的位置可以存在一定的高度差，使线缆不会在空腔16中相互接触。空腔16中也可以增设分隔结构，同样可以达到使线缆分离的目的。
在本实用新型的一实施例中，座体7包括连接部71和用于固定车把的固定部72，连接部71包括形成空腔16的上围壁711以及连接在上围壁711并与空腔16连通的空心柱712，空心柱712连接在竖管5上。空心柱712结构能保证竖管5与安装座3连接稳定，不会在使用过程中发生转动和滑脱。
在本实用新型的一实施例中，空心柱712延其轴向形成有安装孔17和避让槽18，安装孔17与避让槽18连通，竖管5穿设在安装孔17内并与避让槽18围合形成与环形腔15连通的过线孔19。自行车用线内部一般为金属材质，多次弯折后容易发生疲劳断裂，避让槽18能对线缆起到限位作用，使线缆在过线孔19内延腔体轴向移动，进一步防止线缆在内部的弯折。
在本实用新型的一实施例中，如图4所示，空心柱712内壁延径向向内延伸形成有第一限位凸起201。如图5所示，竖管5上开设有与第一限位凸起201适应的限位槽202。第一限位凸起201卡设在限位槽202内，第一限位凸起201与限位槽202的连接能进一步保证竖管5位置固定。竖管5上还可开设有延径向凹陷的限位平面51，限位平面51可与自行车其他结构连接。需要注意的是，本实施例中提及的限位方法仅为其中一种实施例，其他本领域常见的限位手段也应包括在本实用新型的保护范围内。
在本实用新型的一实施例中，如图4所示，盖体6上开设有第一凹槽61和至少一个第一连接孔62，固定部72上开设有与第一凹槽61位置对应的第二凹槽721和至少一个与第一连接孔62位置对应的第二连接孔722，第二凹槽721内部延径向向内延伸形成有第二限位凸起723，车把穿设在第一凹槽61与第二凹槽721之间；第二连接孔722与第一连接孔62通过螺栓连接。第二限位凸起723主要用于固定车把角度，防止在使用中发生扭转。需要注意的是，螺栓连接为本技术领域常见的固定方法，目的是使盖体6与座体7连接稳固，并不能作为对本实用新型技术方案的限制。
在本实用新型的一实施例中，如图4所示，座体7上设有卡柱73，盖体6上开设有与卡柱73对应的卡槽63，卡柱73与卡槽63可拆卸式卡合连接。设置可拆卸式卡合连接的目的是维修时可调整线缆间的位置关系，为实现预期效果，可拆卸连接结构也可以是螺纹连接、铰链连接等本技术领域常见的可拆卸式连接方案。
在本实用新型的一实施例中，如图2所示，还包括用于固定连接竖管5与安装座3的螺母8和垫片9，螺母8和垫片9设置在空腔16内。在其他实施例中，螺母8和垫片9也可设置在竖管5外侧。在实际 使用中，本实施例未描述的其他连接方式如卡扣连接，同样可以在本实用新型中起到相同作用。
在本实用新型的一实施例中，如图3所示，还包括设置在第一连接件41内壁上的半弧形凸起11和轴承10，轴承10夹设于竖管5与半弧形凸起11之间。轴承10能保证把立可以在使用范围内绕轴自由旋转，半弧形凸起11不仅能够实现与其他部件的固定作用，还能够进一步限定线缆的移动方向。如能够达到以上预期效果，其他形式的固定结构也应当纳入本实用新型所涵盖的范畴。
以上所揭露的仅为本实用新型较佳实施例而已，当然不能以此来限定本实用新型之权利范围，因此依本实用新型权利要求所作的等同变化，仍属本实用新型所涵盖的范围。

Claims (10)

  1. 一种自行车把立结构，其特征在于：包括安装座、壳体和竖管，
    所述壳体包括延伸向前轮的第一连接件与延伸向后轮的第二连接件，所述第一连接件延其长度方向开设有第一通孔，所述第二连接件延其长度方向开设有与所述第一通孔连通的第二通孔；
    所述竖管位于所述第一通孔内，且与所述第一通孔内壁间隔设置并形成和所述第二通孔连通的环形腔，所述竖管延其轴向开设有第三通孔；
    所述安装座连接在所述竖管上，所述安装座上开设有至少两个可穿线缆的穿线孔，至少一个所述穿线孔与所述第三通孔连通且至少一个所述穿线孔与所述环形腔连通。
  2. 根据权利要求1所述的自行车把立结构，其特征在于：所述安装座包括与所述竖管连接的座体和可拆卸地盖设在所述座体上的盖体，所述座体与所述盖体围合形成有与分别与所述穿线孔、所述第三通孔和所述环形腔连通的空腔。
  3. 根据权利要求2所述的自行车把立结构，其特征在于：所述座体包括连接部和用于固定车把的固定部，所述连接部包括形成所述空腔的上围壁以及连接在所述上围壁并与所述空腔连通的空心柱，所述空心柱连接在所述竖管上。
  4. 根据权利要求3所述的自行车把立结构，其特征在于：所述空心柱延其轴向形成有安装孔和避让槽，所述安装孔与所述避让槽连通，所述竖管穿设在所述安装孔内并与所述避让槽围合形成与所述环形腔连通的过线孔。
  5. 根据权利要求3所述的自行车把立结构，其特征在于：所述空心柱内壁延径向向内延伸形成有第一限位凸起，所述竖管上开设有与所述第一限位凸起适应的限位槽，所述第一限位凸起卡设在所述限位槽内。
  6. 根据权利要求3所述的自行车把立结构，其特征在于：所述盖体上开设有第一凹槽和至少一个第一连接孔，所述固定部上开设有与所述第一凹槽位置对应的第二凹槽和至少一个与所述第一连接孔位置对应的第二连接孔，所述第二凹槽内部延径向向内延伸形成有第二限位凸起，车把穿设在所述第一凹槽与所述第二凹槽之间；所述第二连接孔与所述第一连接孔通过螺栓连接。
  7. 根据权利要求2-6中任一项所述的自行车把立结构，其特征在于：所述座体上设有卡柱，所述盖体上开设有与所述卡柱对应的卡槽，所述卡柱与所述卡槽可拆卸式卡合连接。
  8. 根据权利要求2或3所述的自行车把立结构，其特征在于：还包括用于固定连接所述竖管与所述安装座的螺母和垫片，所述螺母和所述垫片设置在所述空腔内。
  9. 根据权利要求1-6中任一项所述的自行车把立结构，其特征在于：还包括设置在所述第一连接件内壁上的半弧形凸起和轴承，所述轴承夹设于所述竖管与所述半弧形凸起之间。
  10. 一种自行车，其特征在于：包括车闸组件以及权利要求4所述的自行车把立结构，所述车闸组件包括前闸线和后闸线，所述前闸线自所述穿线孔穿入后经所述第三通孔穿出，所述后闸线经 另一所述穿线孔穿入并依次经过所述过线孔和所述环形腔后自所述第二通孔穿出。
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