CN217170864U - Bicycle seat tube adjustment structure - Google Patents
Bicycle seat tube adjustment structure Download PDFInfo
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- CN217170864U CN217170864U CN202220150080.9U CN202220150080U CN217170864U CN 217170864 U CN217170864 U CN 217170864U CN 202220150080 U CN202220150080 U CN 202220150080U CN 217170864 U CN217170864 U CN 217170864U
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- 230000037431 insertion Effects 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000037396 body weight Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
一种自行车座管调整结构,设有一外管,于外管内设置一气压棒,气压棒的本体结合于所述外管内并伸出一伸缩杆,于所述外管内可轴向活动地设置一内管,气压棒的伸缩杆结合于内管的一端,所述内管的管径大于所述气压棒本体的外径,使所述气压棒的本体可相对地于所述内管内轴向移动,所述气压棒的本体上套设一限位构造,所述限位构造设于本体与所述内管之间,用以限制所述内管不相对气压棒及外管旋转;由于限位构造设于内管与气压棒的本体之间,因此外管不会因限位构造的摩擦力变形,且可减少制程而能兼具强度且轻量化,具有减重及固定座垫时更稳定的功效。
A bicycle seat tube adjustment structure is provided with an outer tube, an air pressure rod is arranged in the outer tube, the body of the air pressure rod is combined with the outer tube and a telescopic rod extends out, and a telescopic rod is axially movable in the outer tube. The inner tube, the telescopic rod of the pneumatic rod is combined with one end of the inner tube, the diameter of the inner tube is larger than the outer diameter of the pneumatic rod body, so that the pneumatic rod body can move axially relative to the inner tube. , a limiting structure is sleeved on the body of the pneumatic rod, and the limiting structure is set between the body and the inner tube to restrict the inner tube from rotating relative to the pneumatic rod and the outer tube; The structure is arranged between the inner tube and the body of the air pressure rod, so the outer tube will not be deformed by the frictional force of the limiting structure, and the manufacturing process can be reduced, which can have both strength and light weight, and is more stable when it has weight reduction and fixed seat cushion effect.
Description
技术领域technical field
本实用新型涉及一种自行车的构造;尤其涉及一种自行车座管调整结构。The utility model relates to a structure of a bicycle, in particular to an adjustment structure of a bicycle seat tube.
背景技术Background technique
现有自行车固定座垫的方式,是在自行车架的立管穿插一设置座垫的座管,当调整座垫的高低时,是以人力将座管插入立管内或向上拉出,再以快拆构造压迫立管紧夹座管,但由于调整费力,因此有厂商设计一种座管调整构造,在立管内设置一外管,通过外管内的气压棒顶撑座管的方式,让使用者坐于座垫时能利用体重与气压棒的弹力,将座垫调整至适当的位置后再固定。The existing method of fixing the seat cushion of a bicycle is to insert a seat tube with a seat cushion through the seat tube of the bicycle frame. When the height of the seat cushion is adjusted, the seat tube is inserted into the seat tube or pulled up by manpower, and then quickly The dismantling structure presses the seat tube tightly to the seat tube, but due to the laborious adjustment, some manufacturers have designed a seat tube adjustment structure. An outer tube is arranged in the seat tube, and the air pressure rod in the outer tube supports the seat tube, allowing the user to When sitting on the seat cushion, the body weight and the elasticity of the air pressure rod can be used to adjust the seat cushion to an appropriate position and then fix it.
但上述具有气压棒的座管调整构造为避免座管在升降过程中偏转,在外管内形成凹沟与座管周围的限位件配合,使座管相对于外管不能旋转。但为形成此限位构造,就需要加厚外管的壁面才足以供凹槽的加工成型,如此会使得外管的重量较重,且限位构造滑动的摩擦力亦会造成外管变形,阻碍座管相对外管升降移动。However, in order to avoid the deflection of the seat tube during the lifting process, a groove is formed in the outer tube to cooperate with the limiting members around the seat tube, so that the seat tube cannot rotate relative to the outer tube. However, in order to form this limit structure, it is necessary to thicken the wall surface of the outer tube to allow the grooves to be processed and formed. This will make the outer tube heavier, and the frictional force of the limit structure sliding will also cause the outer tube to deform. Prevent the seat tube from moving up and down relative to the outer tube.
实用新型内容Utility model content
有鉴于此,本实用新型的目的在于提供一种自行车座管的构造,使内管升降时不能相对于外管旋转,且外管无需形成限位的构造,则外管厚度可以设计更薄,让自行车座管调整结构能维持强度以外且可轻量化。In view of this, the purpose of the present utility model is to provide a structure of a bicycle seat tube, so that the inner tube cannot be rotated relative to the outer tube when lifting and lowering, and the outer tube does not need to form a position-limiting structure, so the thickness of the outer tube can be designed to be thinner, The adjustment structure of the bicycle seat tube can maintain the strength and reduce the weight.
缘以达成上述目的,本实用新型提供一种自行车座管调整结构,包括一外管、一气压棒以及一内管。所述外管的一端为封闭端。所述气压棒设置于所述外管内并包括一气压棒本体以及一由所述气压棒本体伸出的伸缩杆,所述气压棒本体固定于所述外管内。所述内管可沿轴向活动地设置于所述外管内,所述内管的一端具有一结合部以与所述气压棒的所述伸缩杆结合,且所述内管的管内径大于所述气压棒本体的外径,使所述气压棒本体可相对地于所述内管内轴向移动,所述气压棒本体与所述内管的内壁之间设有一限位构造,所述限位构造套设于所述气压棒本体上,用以限制所述内管不相对所述气压棒及所述外管旋转。In order to achieve the above purpose, the present invention provides a bicycle seat tube adjustment structure, which includes an outer tube, an air pressure rod and an inner tube. One end of the outer tube is a closed end. The pneumatic rod is arranged in the outer tube and includes a pneumatic rod body and a telescopic rod extending from the pneumatic rod body, and the pneumatic rod body is fixed in the outer tube. The inner tube can be movably arranged in the outer tube in the axial direction, one end of the inner tube has a joint part to be combined with the telescopic rod of the pneumatic rod, and the inner diameter of the inner tube is larger than that of the inner tube. The outer diameter of the pneumatic rod body enables the pneumatic rod body to move axially relative to the inner tube. A limit structure is provided between the pneumatic rod body and the inner wall of the inner tube. The structure is sleeved on the pneumatic rod body to restrict the inner tube from rotating relative to the pneumatic rod and the outer tube.
本实用新型的效果在于,限位构造是设于内管与气压棒本体之间,不涉及外管的构造。因此,可减少外管制造时的制程,缩减外管壁面的厚度降低其重量,并在维持强度的情况下兼具轻量化,管壁较薄的外管即使承受外力时变形依然稳定地夹紧内部的内管。此外,由于外管不会因限位构造的摩擦力产生变形,不会造成内管于外管升降时的阻碍。The effect of the present invention is that the limiting structure is arranged between the inner tube and the pneumatic rod body, and does not involve the structure of the outer tube. Therefore, the manufacturing process of the outer tube can be reduced, the thickness of the outer tube wall can be reduced to reduce its weight, and the strength can be maintained at the same time. Internal inner tube. In addition, since the outer tube will not be deformed by the frictional force of the limiting structure, the inner tube will not be hindered when the outer tube is raised and lowered.
附图说明Description of drawings
图1为本实用新型一优选实施例的立体图。FIG. 1 is a perspective view of a preferred embodiment of the present invention.
图2为本实用新型上述优选实施例的分解图。FIG. 2 is an exploded view of the above-mentioned preferred embodiment of the present invention.
图3为本实用新型上述优选实施例的端塞处放大的分解图。FIG. 3 is an enlarged exploded view of the end plug of the above-mentioned preferred embodiment of the present invention.
图4为本实用新型上述优选实施例的套筒、限位件及定位螺帽的分解图。4 is an exploded view of the sleeve, the limiting member and the positioning nut according to the above preferred embodiment of the present invention.
图5为本实用新型上述优选实施例的气压棒结合限位件的立体图。FIG. 5 is a perspective view of the pneumatic rod combined with the limiting member according to the above preferred embodiment of the present invention.
图6为本实用新型上述优选实施例的俯视图。FIG. 6 is a top view of the above-mentioned preferred embodiment of the present invention.
图7为图6的7-7方向的剖视图。FIG. 7 is a cross-sectional view taken along the line 7-7 of FIG. 6 .
图8为图7的部分放大图。FIG. 8 is a partial enlarged view of FIG. 7 .
图9为本实用新型上述优选实施例的自行车座管下降的动作示意图。9 is a schematic view of the action of the bicycle seat tube descending according to the above preferred embodiment of the present invention.
[本实用新型][the utility model]
100:自行车座管调整结构100: Bicycle seat tube adjustment structure
10:外管10: Outer tube
12:外管体12: Outer tube body
121:外孔121: Outer hole
122:螺栓122: Bolts
14:上轴承座14: Upper bearing seat
141:凸缘部141: Flange part
142:轴承部142: Bearing Department
143:防尘环143: Dust ring
144:上轴承144: Upper bearing
16:端塞16: End plug
161:凸缘161: Flange
162:置入孔162: Insertion hole
163:沉头孔163: Countersunk hole
18:凸轮座18: Cam seat
181:底座181: Pedestal
1811:固定孔1811: Fixing hole
1812:固定螺孔1812: Fixing screw holes
182:凸轮支架182: Cam bracket
1821:凸轮1821: Cam
1822:拉绳1822: Drawstring
20:气压棒20: Air pressure bar
22:气压棒本体22: Air pressure rod body
221:固定管221: Fixed tube
222:气压释放钮222: Air pressure release button
24:伸缩杆24: Telescopic rod
241:凸杆241: Protruding rod
242:固定螺帽242: Retaining Nut
30:自行车座管30: Bike seat tube
32:内管32: Inner tube
321:结合部321: Joint
322:凹槽322: Groove
323:顶穿孔323: Top perforation
34:下轴承座34: Lower bearing seat
341:下轴承341: Lower bearing
36:顶座36: Top seat
38:座垫固定组件38: Seat Cushion Fixing Components
40:限位构造40: Limit structure
42:套筒42: Sleeve
421:嵌槽421: Groove
422:螺纹环422: Threaded Ring
423:剖沟423: Trough
44:限位件44: Limiter
46:定位螺帽46: Positioning nut
具体实施方式Detailed ways
为能更清楚地说明本实用新型,兹举优选实施例并配合附图详细说明如后。请参看图1至图8所示,为本实用新型一优选实施例的自行车座管调整结构100,包括一外管10、一气压棒20、一内管32以及一设于气压棒20与内管32之间的限位构造40。当所述自行车座管调整结构100使用时是将外管10设置于自行车架的立管内。In order to illustrate the present invention more clearly, preferred embodiments are given and described in detail with the accompanying drawings as follows. Please refer to FIGS. 1 to 8 , a bicycle seat
外管10是竖直的管体且底部的一端为封闭端。The
气压棒20设置于外管10内并包括一气压棒本体22以及一伸缩杆24,气压棒本体22的一端结合在外管10的封闭端,使气压棒本体22固定于外管10内;所述伸缩杆24由气压棒本体22的另一端伸出。The
内管32可沿轴向活动地设置于外管10内,为了使外管10的周围受外力时容易变形紧夹内管32的周围固定内管32,可将上述外管10周壁的厚度设为小于内管32周壁厚度的型态。内管32顶侧的一端具有一结合部321以与气压棒20的伸缩杆24结合,当内管32插入外管10的深度改变时,伸缩杆24由气压棒本体22伸出的长度亦随之改变为不同的长度,内管32的管内径大于气压棒本体22的外径,且内管32与气压棒本体22的部分保持径向重叠的状态,使气压棒本体22在内管32插入外管10的深度改变时,可相对地于内管32内沿轴向移动。The
限位构造40套设于气压棒本体22上,用以限制内管32不相对气压棒20及外管10旋转。The limiting
内管32是一自行车座管30的管部,当自行车座管调整结构100使用时,自行车的座垫(图中未绘示)是结合于自行车座管30的顶端。请参看图7至图9所示,借由气压棒20受力时可缩短而释放时可伸长的特性,使气压棒20在内管32受力插入外管10时支撑内管32,或当气压棒20释放时将内管32的部分推出外管10。如此,可方便使用者随意改变内管32插入外管10的深度,当调整完毕后再以立管上的快拆或其他束合的构造压迫外管10,以外管10变形紧夹内管32的方式固定座垫的高低位置,且上述调整座垫高低位置的过程中,由于内管32受限位构造40拘束不能旋转,能使座垫的前端始终保持向前的位置。The
本实用新型上述优选实施例由于已于气压棒本体22与内管32之间设有限位构造40,于外管10与内管32之间无需另设限位的构造。如此一来,能减少外管10的制程及管壁的厚度,在维持外管10强度的情况下兼具轻量化,达到使自行车座管调整结构100减重,以及使外管10受压迫变形时依然稳定地夹紧内管32固定。此外,由于内管32升降时的阻尼位置在气压棒20与内管32之间,因此外管10不会受限位构造40摩擦而产生变形,不会造成内管32升降时的阻碍。Since the above-mentioned preferred embodiment of the present invention has provided the limiting
进一步说明上述优选实施例的详细构造。请参看图2以及图7至图8所示,外管10具有一外管体12,外管10的顶端设置一上轴承座14,上轴承座14具有一凸缘部141以及一轴承部142,凸缘部141的外径大于轴承部142的外径,且凸缘部141扣于外管10的顶缘定位,使轴承部142由顶端穿入外管10内。凸缘部141的内壁环绕地嵌设一防尘环143,轴承部142的内壁环绕地嵌设一上轴承144,内管32穿过上轴承座14并以其外壁可滑动地接触防尘环143及上轴承144,防尘环143可避免脏污进入外管10内;内管32的底端设置一下轴承座34,下轴承座34的外壁嵌设固定一下轴承341,下轴承341可滑动地接触外管10的内壁,在本优选实施例中上轴承144与下轴承341分别是自润轴承,在其他实施例中上轴承144与下轴承341亦可为线性轴承或衬套。The detailed configuration of the above-described preferred embodiment is further explained. Referring to FIG. 2 and FIGS. 7 to 8 , the
请参看图3以及图7所示,外管10的底部周围具有一外孔121,外管10的底端设置一端塞16,端塞16底端的周围凸设一凸缘161,凸缘161抵靠于外管10的底缘,端塞16的中间具有一置入孔162并且周围具有一沉头孔163,沉头孔163的内外两端分别与置入孔162及外孔121相通。Please refer to FIG. 3 and FIG. 7 , an
配合置入孔162设有一凸轮座18,凸轮座18包括一底座181以及一凸轮支架182,底座181穿置于置入孔162并且中间及周围具有一固定孔1811以及一固定螺孔1812,固定螺孔1812的内外两端分别与固定孔1811以及沉头孔163相通;凸轮支架182连接于底座181的底侧并且于中间枢接一凸轮1821,凸轮1821设置于固定孔1811的下方连结一拉绳1822。A
气压棒20于气压棒本体22的底端沿轴向凸设一固定管221,固定管221嵌入所述固定孔1811内,配合外孔121设有一螺栓122,螺栓122穿入外孔121、沉头孔163并螺锁于固定螺孔1812,螺栓122的内端压迫气压棒本体22的固定管221,将气压棒20固定于外管10的底端,于固定管221内穿置一向下凸出的气压释放钮222,气压释放钮222的底端抵靠于凸轮1821。A fixing
请参看图2以及图7所示,结合部321的中间具有一顶穿孔323,配合顶穿孔323于伸缩杆24的顶端形成一直径较所述伸缩杆24其他部分窄的凸杆241,凸杆241穿过顶穿孔323并于穿出顶穿孔323的部分螺锁一固定螺帽242,将伸缩杆24的顶端结合于结合部321。内管32的顶端连接一顶座36,于顶座36以螺丝穿过结合一用以固定自行车座垫的座垫固定组件38。Referring to FIG. 2 and FIG. 7 , a top through
请参看图2、图4以及图7所示,限位构造40具有一套筒42,套筒42的外表面附接至少一个限位件44,至少一个限位件44的附接方式是在套筒42的外周面环绕且间隔地设有至少一个嵌槽421,在本优选实施例中是环绕且等间隔地设有三个嵌槽421,各嵌槽421是延伸方向与内管32轴向平行的长条形沟槽,于各嵌槽421嵌设各限位件44,各限位件44是延伸方向与内管32轴向平行的长条形杆并以内侧嵌设于各嵌槽421固定,配合各限位件44于内管32的内壁形成一凹槽322,各凹槽322是延伸方向与内管32轴向平行的长条形凹槽,各限位件44的外侧可滑动地容纳于各凹槽322。Please refer to FIGS. 2 , 4 and 7 , the limiting
所述套筒42可为具有弹性的环体并紧束于气压棒本体22的周围,或者如本优选实施例,是在套筒42的底端沿轴向延伸一螺纹环422,螺纹环422具有至少一个剖沟423,在本优选实施例中是具有多个剖沟423并在螺纹环422螺合一定位螺帽46,以定位螺帽46压迫螺纹环422位于相邻两个剖沟423之间的部分,使螺纹环422紧夹气压棒本体22的外表面,借此将套筒42固定在气压棒本体22的周围。The
以上所述仅为本实用新型优选可行实施例而已,举凡应用本实用新型说明书及申请专利范围所为的等效变化,理应包含在本实用新型的专利范围内。The above are only preferred and feasible embodiments of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the patent scope of the present invention.
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