CN217170864U - Bicycle seat tube adjustment structure - Google Patents

Bicycle seat tube adjustment structure Download PDF

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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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tube
seat
hole
inner tube
outer tube
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杰森·梅尔斯
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Tien Hsin Industries Co Ltd
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Tien Hsin Industries Co Ltd
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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。

Figure 202220150080

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.

Figure 202220150080

Description

自行车座管调整结构Bicycle seat tube adjustment structure

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 tube adjustment structure 100 according to a preferred embodiment of the present invention includes an outer tube 10 , an air pressure rod 20 , an inner tube 32 , and an air pressure rod 20 and an inner tube 32 . Limiting structure 40 between tubes 32 . When the bicycle seat tube adjusting structure 100 is used, the outer tube 10 is arranged in the seat tube of the bicycle frame.

外管10是竖直的管体且底部的一端为封闭端。The outer tube 10 is a vertical tube body and one end of the bottom is a closed end.

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 pneumatic rod 20 is arranged in the outer tube 10 and includes a pneumatic rod body 22 and a telescopic rod 24. One end of the pneumatic rod body 22 is combined with the closed end of the outer tube 10, so that the pneumatic rod body 22 is fixed in the outer tube 10; the The telescopic rod 24 extends from the other end of the pneumatic rod body 22 .

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 inner tube 32 can be movably arranged in the outer tube 10 in the axial direction. In order to make the periphery of the outer tube 10 easily deformed when subjected to an external force, the inner tube 32 can be clamped tightly around the inner tube 32, and the thickness of the peripheral wall of the outer tube 10 can be set. It is a type that is smaller than the thickness of the peripheral wall of the inner tube 32 . One end of the top side of the inner tube 32 has a joint portion 321 to be combined with the telescopic rod 24 of the pneumatic rod 20. When the depth of the inner tube 32 inserted into the outer tube 10 changes, the length of the telescopic rod 24 extending from the pneumatic rod body 22 also varies. To change to different lengths, the inner diameter of the inner tube 32 is larger than the outer diameter of the pneumatic rod body 22, and the inner tube 32 and the pneumatic rod body 22 are kept in a radially overlapping state, so that the pneumatic rod body 22 is inserted into the inner tube 32. When the depth of the outer tube 10 is changed, it can move axially relative to the inner tube 32 .

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 structure 40 is sleeved on the pneumatic rod body 22 for restricting the inner tube 32 from rotating relative to the pneumatic rod 20 and the outer tube 10 .

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 inner tube 32 is a tube portion of the bicycle seat tube 30 . When the bicycle seat tube adjusting structure 100 is used, the bicycle seat cushion (not shown in the figure) is combined with the top of the bicycle seat tube 30 . Referring to FIGS. 7 to 9 , the pneumatic rod 20 can support the inner tube 32 when the inner tube 32 is inserted into the outer tube 10 under force by virtue of the feature that the pneumatic rod 20 can be shortened when it is stressed and can be extended when it is released, or Portions of the inner tube 32 are pushed out of the outer tube 10 when the gas bar 20 is released. In this way, it is convenient for the user to freely change the depth at which the inner tube 32 is inserted into the outer tube 10. After the adjustment is completed, the outer tube 10 is pressed by the quick release or other binding structure on the riser, and the outer tube 10 is deformed to clamp the inner tube 32 tightly. In the process of adjusting the height of the seat cushion, the inner tube 32 cannot rotate due to the restriction of the position-limiting structure 40 of the inner tube 32, so that the front end of the seat cushion can always be kept in the forward position.

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 structure 40 between the pneumatic rod body 22 and the inner tube 32 , there is no need to provide another limiting structure between the outer tube 10 and the inner tube 32 . In this way, the manufacturing process of the outer tube 10 and the thickness of the tube wall can be reduced, and the weight of the outer tube 10 can be reduced while maintaining the strength of the outer tube 10 , so as to reduce the weight of the bicycle seat tube adjustment structure 100 and cause the outer tube 10 to be compressed and deformed. The inner tube 32 is still stably clamped and fixed. In addition, since the damping position of the inner tube 32 is between the pneumatic rod 20 and the inner tube 32 , the outer tube 10 will not be deformed due to friction with the position limiting structure 40 , and will not hinder the lifting of the inner tube 32 .

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 outer tube 10 has an outer tube body 12 , an upper bearing seat 14 is disposed at the top of the outer tube 10 , and the upper bearing seat 14 has a flange portion 141 and a bearing portion 142 The outer diameter of the flange portion 141 is larger than the outer diameter of the bearing portion 142 , and the flange portion 141 is positioned on the top edge of the outer tube 10 , so that the bearing portion 142 penetrates into the outer tube 10 from the top. A dust ring 143 is embedded around the inner wall of the flange portion 141 , an upper bearing 144 is embedded around the inner wall of the bearing portion 142 , and the inner tube 32 passes through the upper bearing seat 14 and slidably contacts the dust ring with its outer wall. 143 and the upper bearing 144, the dustproof ring 143 can prevent dirt from entering the outer tube 10; the bottom end of the inner tube 32 is provided with a lower bearing seat 34, the outer wall of the lower bearing seat 34 is embedded with a fixed lower bearing 341, and the lower bearing 341 can slide In this preferred embodiment, the upper bearing 144 and the lower bearing 341 are self-lubricating bearings respectively. In other embodiments, the upper bearing 144 and the lower bearing 341 can also be linear bearings or bushings.

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 outer hole 121 is formed around the bottom of the outer tube 10 , an end plug 16 is provided at the bottom end of the outer tube 10 , and a flange 161 is protruded around the bottom end of the end plug 16 . The flange 161 abuts against Adjacent to the bottom edge of the outer tube 10 , the end plug 16 has an insertion hole 162 in the middle and a countersunk hole 163 around it. The inner and outer ends of the countersunk hole 163 communicate with the insertion hole 162 and the outer hole 121 respectively.

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 cam seat 18 is provided in cooperation with the insertion hole 162. The cam seat 18 includes a base 181 and a cam bracket 182. The base 181 is inserted through the insertion hole 162 and has a fixing hole 1811 and a fixing screw hole 1812 in the middle and around it. The inner and outer ends of the screw hole 1812 communicate with the fixing hole 1811 and the countersunk hole 163 respectively; the cam bracket 182 is connected to the bottom side of the base 181 and is pivotally connected to a cam 1821 in the middle. Rope 1822.

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 tube 221 is protruded from the bottom end of the air pressure bar body 22 along the axial direction. The fixing tube 221 is embedded in the fixing hole 1811, and a bolt 122 is arranged in the outer hole 121. The bolt 122 penetrates the outer hole 121 and sinks. The head hole 163 is screwed into the fixing screw hole 1812, the inner end of the bolt 122 presses the fixing tube 221 of the air pressure rod body 22, and the air pressure rod 20 is fixed to the bottom end of the outer tube 10, and a downward protrusion is inserted through the fixing tube 221. The air pressure release button 222 comes out, and the bottom end of the air pressure release button 222 abuts against the cam 1821 .

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 hole 323 is formed in the middle of the joint portion 321 , and the top through hole 323 forms a protruding rod 241 with a narrower diameter than other parts of the telescopic rod 24 at the top of the telescopic rod 24 . 241 passes through the top through hole 323 and is screwed with a fixing nut 242 at the part passing through the top through hole 323 , so as to connect the top end of the telescopic rod 24 to the joint portion 321 . The top end of the inner tube 32 is connected to a top seat 36, and a seat cushion fixing component 38 for fixing the bicycle seat cushion is combined with the top seat 36 through screws.

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 structure 40 has a sleeve 42 , at least one limiting piece 44 is attached to the outer surface of the sleeve 42 , and the at least one limiting piece 44 is attached in the The outer peripheral surface of the sleeve 42 is provided with at least one inserting groove 421 around and at intervals. In this preferred embodiment, there are three inserting grooves 421 surrounding and equally spaced. In the parallel elongated grooves, each limiting member 44 is embedded in each inserting groove 421 , and each limiting member 44 is a long rod whose extension direction is parallel to the axial direction of the inner tube 32 and is embedded in each inserting groove at the inner side. 421 is fixed, and a groove 322 is formed on the inner wall of the inner tube 32 with each limiting member 44. Each groove 322 is an elongated groove whose extension direction is parallel to the axial direction of the inner tube 32. The outer side of each limiting member 44 can be It is slidably accommodated in each groove 322 .

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 sleeve 42 can be an elastic ring body and is fastened around the pneumatic rod body 22, or as in the preferred embodiment, a threaded ring 422 is axially extended from the bottom end of the sleeve 42. The threaded ring 422 There is at least one groove 423, in this preferred embodiment, there are a plurality of grooves 423 and a positioning nut 46 is screwed to the threaded ring 422, so that the positioning nut 46 presses the threaded ring 422 to be located in two adjacent grooves 423 The threaded ring 422 clamps the outer surface of the pneumatic rod body 22 , thereby fixing the sleeve 42 around the pneumatic rod body 22 .

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.

Claims (10)

1.一种自行车座管调整结构,其特征在于,包括:1. A bicycle seat tube adjustment structure is characterized in that, comprising: 一外管,其一端为封闭端;an outer tube, one end of which is a closed end; 一气压棒,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;以及a pneumatic rod, disposed in the outer tube and comprising 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; and 一内管,其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。an inner tube, which 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 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 position structure is sleeved on the pneumatic rod body to restrict the inner tube from rotating relative to the pneumatic rod and the outer tube. 2.如权利要求1所述的自行车座管调整结构,其中,所述限位构造为一套筒,所述套筒的外表面附接至少一个限位件,所述内管的内壁形成一凹槽以容置所述限位件,所述凹槽是延伸方向与所述内管轴向平行的长条形凹槽,所述限位件至少部分可滑动地容纳于所述凹槽。2 . The bicycle seat tube adjustment structure according to claim 1 , wherein the limiting structure is a sleeve, the outer surface of the sleeve is attached with at least one limiting member, and the inner wall of the inner tube forms a The groove is used for accommodating the limiting member, the groove is an elongated groove extending in parallel with the axial direction of the inner tube, and the limiting member is at least partially slidably accommodated in the groove. 3.如权利要求2所述的自行车座管调整结构,其中,所述套筒于一端沿轴向延伸一螺纹环,所述螺纹环具有至少一个剖沟,于所述螺纹环螺合一定位螺帽,所述定位螺帽压迫所述螺纹环,使所述螺纹环位于相邻两剖沟之间的部分压迫所述气压棒本体的外表面,将所述套筒固定在所述气压棒本体。3 . The bicycle seat tube adjustment structure according to claim 2 , wherein a threaded ring is axially extended from one end of the sleeve, and the threaded ring has at least one groove, which is screwed and positioned on the threaded ring. 4 . A nut, the positioning nut presses the threaded ring, so that the part of the threaded ring located between the two adjacent grooves presses the outer surface of the pneumatic rod body, and the sleeve is fixed on the pneumatic rod ontology. 4.如权利要求2所述的自行车座管调整结构,其中,所述套筒的外周面环绕且间隔地设有至少一个嵌槽,所述至少一个嵌槽是延伸方向与所述内管轴向平行的长条形沟槽,用以对应设置所述至少一个限位件,所述至少一个限位件分别是延伸方向与所述内管轴向平行的长条形杆,所述限位件的内侧嵌设于所述嵌槽固定,所述限位件的外侧可滑动地容纳于所述凹槽。4 . The bicycle seat tube adjustment structure according to claim 2 , wherein the outer peripheral surface of the sleeve is surrounded and spaced with at least one insert groove, and the at least one insert groove is an extension direction of the inner tube shaft. 5 . A parallel elongated groove is used to correspondingly set the at least one stopper, and the at least one stopper is respectively an elongated rod whose extension direction is parallel to the axial direction of the inner tube. The inner side of the piece is embedded in the inserting groove to be fixed, and the outer side of the limiting piece is slidably accommodated in the groove. 5.如权利要求1所述的自行车座管调整结构,其中,所述外管的顶端设置一上轴承座,所述上轴承座内设置一上轴承,所述内管穿过所述上轴承座并且以外壁可滑动地接触所述上轴承,所述内管的底端设置一下轴承座,所述下轴承座外设置一下轴承,所述下轴承可滑动地接触所述外管的内壁。5 . The bicycle seat tube adjustment structure according to claim 1 , wherein an upper bearing seat is arranged at the top end of the outer tube, an upper bearing is arranged in the upper bearing seat, and the inner tube passes through the upper bearing. 6 . The outer wall slidably contacts the upper bearing, the bottom end of the inner tube is provided with a lower bearing seat, the lower bearing seat is provided with a lower bearing, and the lower bearing slidably contacts the inner wall of the outer tube. 6.如权利要求5所述的自行车座管调整结构,其中,所述上轴承与所述下轴承分别是自润轴承,所述上轴承座具有一凸缘部以及一轴承部,所述凸缘部的外径大于所述轴承部的外径,所述轴承部穿入所述外管内且所述上轴承环绕地嵌设于所述轴承部的内壁,所述凸缘部扣于所述外管的顶缘,所述凸缘部的内壁环绕地嵌设一防尘环,所述内管的外壁可滑动地接触所述防尘环,用以避免脏污进入所述外管内。6 . The bicycle seat tube adjustment structure according to claim 5 , wherein the upper bearing and the lower bearing are self-lubricating bearings respectively, the upper bearing seat has a flange portion and a bearing portion, the convex portion is 6 . The outer diameter of the edge portion is larger than the outer diameter of the bearing portion, the bearing portion penetrates into the outer tube, the upper bearing is embedded around the inner wall of the bearing portion, and the flange portion is fastened to the inner wall of the bearing portion. A dust ring is embedded around the top edge of the outer tube and the inner wall of the flange portion, and the outer wall of the inner tube can slidably contact the dust ring to prevent dirt from entering the outer tube. 7.如权利要求5所述的自行车座管调整结构,其中,所述外管的底端设置一端塞,所述端塞底端的周围凸设一凸缘,所述凸缘抵靠于所述外管的底缘固定,所述端塞具有一置入孔,配合所述置入孔设有一凸轮座,所述凸轮座包括一底座以及一连接于所述底座的凸轮支架,所述底座穿置于所述置入孔固定,所述底座具有一固定孔,所述凸轮支架的枢接一凸轮,所述凸轮设置于所述固定孔的下方并连结一拉绳;所述气压棒本体的底端沿轴向凸设一固定管,所述固定管嵌入所述固定孔内固定,于所述固定管内穿置一向下凸出的气压释放钮,所述气压释放钮的底端抵靠于所述凸轮。7 . The bicycle seat tube adjustment structure according to claim 5 , wherein an end plug is provided at the bottom end of the outer tube, a flange is protruded around the bottom end of the end plug, and the flange abuts against the The bottom edge of the outer tube is fixed, the end plug has an insertion hole, and a cam seat is arranged to match the insertion hole. The cam seat includes a base and a cam bracket connected to the base. The base passes through It is fixed in the insertion hole, the base has a fixing hole, the cam bracket is pivotally connected to a cam, and the cam is arranged below the fixing hole and connected with a pull rope; A fixing tube is protruded from the bottom end along the axial direction, the fixing tube is embedded in the fixing hole and fixed, a downwardly protruding air pressure release button is inserted in the fixing tube, and the bottom end of the air pressure release button abuts against the air pressure release button. the cam. 8.如权利要求7所述的自行车座管调整结构,其中,所述外管的底部周围具有一外孔,所述端塞的周围具有一沉头孔,所述沉头孔的内外两端分别与所述置入孔及所述外孔相通,所述底座的周围具有一固定螺孔,所述固定螺孔的内外两端分别与所述固定孔以及所述沉头孔相通,设有一螺栓,所述螺栓穿入所述外孔、所述沉头孔并螺锁于所述固定螺孔,所述螺栓的内端压迫所述气压棒本体的所述固定管,将所述气压棒固定于所述外管的底端。8. The bicycle seat tube adjustment structure according to claim 7, wherein an outer hole is formed around the bottom of the outer tube, a countersunk hole is formed around the end plug, and the inner and outer ends of the countersunk hole are They are respectively communicated with the insertion hole and the outer hole, a fixing screw hole is arranged around the base, and the inner and outer ends of the fixing screw hole are respectively communicated with the fixing hole and the countersunk hole, and there is a fixed screw hole. The bolt penetrates the outer hole and the countersunk head hole and is screwed into the fixing screw hole, the inner end of the bolt presses the fixing tube of the pneumatic rod body, and the pneumatic rod is screwed fixed to the bottom end of the outer tube. 9.如权利要求8所述的自行车座管调整结构,其中,所述结合部具有一顶穿孔,所述伸缩杆的顶端形成一直径较窄的凸杆,所述凸杆穿过所述顶穿孔,且所述凸杆穿出所述顶穿孔的部分螺锁一固定螺帽,将所述伸缩杆的顶端结合于所述结合部。9 . The bicycle seat tube adjustment structure according to claim 8 , wherein the joint part has a top through hole, the top end of the telescopic rod forms a protruding rod with a narrower diameter, and the protruding rod passes through the top A perforation is formed, and a part of the protruding rod passing through the top perforation is screwed with a fixing nut, so that the top end of the telescopic rod is combined with the joint part. 10.如权利要求9所述的自行车座管调整结构,其中,所述内管的顶端连接一顶座,于所述顶座以螺丝穿过结合一座垫固定组件,所述座垫固定组件用以固定自行车座垫。10 . The bicycle seat tube adjustment structure according to claim 9 , wherein the top end of the inner tube is connected to a top seat, and the top seat is connected with a seat cushion fixing component through screws, and the seat cushion fixing component is 10 . For fixing bicycle saddles.
CN202220150080.9U 2022-01-20 2022-01-20 Bicycle seat tube adjustment structure Active CN217170864U (en)

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