^395749 五、新型說明： 【新型所屬之技術領域】 本創作係有關於-種避«改良結構，特別是指—種可應用於四輪或 二輪交通工具並具有結構簡單及可降低成本的避震器改良鈐構。 【先前技術】 目前交通工具大多以四輪或二輪交通工具(如汽、機車）為主，當車輛 於行驶時’常相路面凹a不平造成癲頗，尤其對於二輪交通工具之駕敬 者行歇時’因為地面崎錢絲祕會直接傳遞給紐者，使其產生不舒 服之感覺。 因此’為解決上述之問題，乃提出一種避震器結構，以供可裝設於車 细之懸吊系統中，藉以吸收地面震動以及將該地面震動所產生之震動釋放 消除’使駕駛者行敬時之不舒服感降至最低。如第5圖所示，該避震器結 構係包括-設有容置部之t錢體_(亦為壓力虹體）、活塞桿⑽、調 節桿62G、活塞咖、彈請及調節請，該活塞桿_設置於該中空 、體600之令置部中，且該調節桿62〇套設於該活塞桿_之内部，該活 ^咖則套設於該活塞桿_之外壁，藉以使該中空筒體_之容置部分 割形成兩油室，該調節件650套設於該活塞桿⑽之一端，並與該調節桿 之-端相組合固定，而該彈簧_則設觸活塞63〇下方閥門片及該調 P件650之間，且該活塞63〇設有固定螺絲_，以藉由該固定螺絲_抵 〆調即件650之另-側’使該調節桿62〇定位於該活塞桿_中，且該 ^定螺絲咖設有可供該調節桿咖穿設之穿孔。藉此，當活塞桿受外力 時其争-油至之液壓油會經由該活塞_之通孔進入另一油室中， M395749 並可藉由該調節桿62G控制該彈簀⑽之壓力而改變顏油之流速，使其 產生不同阻尼力’以提供駕駛者於行駛時可發揮減振作用，同時，為避免 ‘該活塞桿於作活塞桿⑽在射空髓_内經由該活塞桿 -6H) _與該觸件65〇間之間_漏之問題，可於制定獅哪之訊 設有替請及扣合件662,藉由該塾讀及該扣合件卿完整密封該固 _定螺絲660與該調節桿620間之間隙，以供防止液壓油外茂。 _ 由於上述③有穿孔之固定麟_為特殊零件，需藉由特定模 >具製作而成’且該固定螺絲66〇裝設於避震器結構之活塞桿_時必須 藉由人工操作鎖合，再經由機器精密扣合並鎖固位置，使其產生費時費力 及增加成本之問題。 有鑑於此’本創作人乃潛心研思、設計組製，期能提供一種結構解單 及可降低成本之避震盗改良結構，藉以提高其使用便利性，為本創作所欲 研創之創作動機者。 【新型内容】 >·本創作之主要目的，在於提供一種避震器改良結構使其達到調整避 震|§阻尼之功效。 j作之人目的’在於提供一種避震器改良結構，使其組件不需藉 由特定模具製作柯簡化結構及降低成本。 、树上述目的，本創作之避震器改良結構係包括管體，係、設有-容置 有^之谷置㈣；活雜’係具有巾㈣、第―端及第三端，該第一 槽該第一端設有第二凹槽，該活塞桿設置於該容置空間中， s" ^之第端外露於該管體；活塞組件，係設置於該容置空間中， 5 M395749 並套設娜_之第二端上；_捍，物細活塞桿之中空部；以 及固定組件，係設置於該容置空間中，並套設於該活塞桿之第二端上，咳 固定組件_性件、具_之觸件、_槽之綱件及設於該第 二凹槽之油刪’該彈性件設置於該活塞組件及該調節件之間，該鎖固 件設於該凹部令並套設於該活塞桿之第二端，且該活塞桿之第二端端面抵 靠於該鎖固件之凹槽’而設於該第二凹槽之油封塾片套設於該調節桿，咳 油封塾片抵靠該鎖固件之凹槽。藉此，使其達到調整避震器阻尼變化之目 的’且組件不賴峨模纖而成，具有簡化結構、降低成本等優點。 為了能夠更進-步瞭解本創作之特徵、特點和技術内容，請參閱以下 有關本創叙詳細綱與關，惟所_辆提供參考錢 限制本創作。 【實施方式】 圖至3B騎示，為柄作之避職从結構之立體結構示意 圖、立體分解結構示意其剖面示_。該避震器改良 100、爾聊、活塞組件細、固定組件·及卿叫使其= 輛於行驶中必要之避震效果。 ’、 ==係咖本義伽2G姆_找蓋義相 、··。口 A並形成有具密封性之容置空間⑻，以供容置液壓油，且兮 腕有開〇 m。而該活塞雜設置於該容置空間m中，且兮術 具有中空物、第一糊、第二端22〇及至少—油孔⑽今第干 端謂有f丨，账物_:賴221及至少一縦由 謂，當該活塞桿讓置於該容蝴⑼時，且該活塞桿2二 M395749 端210穿設该蓋體120之開口 121而外露於該管體loo。 該活塞組件300係設置於該容置空間1〇1中，並套設於該活塞桿2〇〇 之第二端220上，且該活塞組件3〇〇包括活塞31〇、第一閥片32〇及第二閥 片330，該活塞310設有複數第一通道311及第二通道312，可藉由該活塞 310套設於該活塞桿200之第二端220上，使該容置空間ιοί形成上、下油 室，而該第二閥片330設有通孔331，且該第一閥片32〇及該第二閥片3加 分別設置於該活塞310之兩側。 該固定組件400係設置於該容置空間1〇1中，並套設於該活塞桿2〇〇 之第二端220上，且該固定組件4〇〇包括彈性件41〇 (如彈簧）、調節件 420、鎖固件430及油封塾片440 ’該彈性件410設置於該活塞組件300及 該調節件420之間’使該彈性件41〇抵靠於該活塞31〇 一側之第一閥片32〇, 賴節件420具有凹部421及卡合部422 (如帛2B圖所示），該鎖固件43〇 設於該凹部421中，並套設於該活塞桿之第二端22Q，且該鎖固件伽 具有凹槽431及穿孔432 » 該調節桿500係設有調節端510及固定端52〇(如勾狀形），且該調節桿 500穿設於該活塞桿200之中空部2(n，該調節桿5〇〇之調節端51〇外露於 該活塞桿200之第一端210，該第一端21〇之第一凹槽211及該調節桿5〇〇 之間叹有一油封墊片540，以防止液壓油藉由該中空部2〇1外洩，且該調節 桿500之調節端51〇設有調節& 53〇，該調節桿關之固定端52〇則外露於 U活塞杯200之第二端220 ’當該鎖固件430套設於該活塞桿2〇〇之第二端 220上時’該活塞桿2〇〇之第二端22〇端面抵靠於該鎖固件伽之凹槽似， 而叹於該第二凹槽221之油封塾片套設於該調節桿5〇〇之調節端則" 7 «95749 Γ封塾片柳並抵靠該鎖固件_之凹槽431，且該調節桿圖之固定端 穿過該鎖固件棚之穿孔432而與該調節件42〇之卡合部勸互卡合 而固定，以藉由該調節件42剛如塞㈣之調節油孔訓閉狀態。 復請參閱第2A至4B圖所示，本創作之避震器改良結構係於壓縮行程 向下移動），且該活塞桿之調節油孔咖為全開狀態時，藉由該彈 ，_仙之簧力使該活塞训—側之第—閥片卿完整覆蓋該活塞⑽之 第通道311，造成下油室之液壓油無法經由該活塞3ι〇之第一通道犯流 動至上油室，下油室之液壓油流動於該活塞31()之第二通道312而堆動該 第二閥片330,使其可經由該第二通道312及該第二閥片33〇之通孔331而 流動至上油室，且下油室之液壓油經由該活塞桿⑽之調節油孔咖流入 該活塞桿200之中空部201 ’並經由該活塞桿之油孔24〇流至上油室（如 第4A圖所示），此時，將使避震器之阻尼增加。 而該避震器改良結構係於拉伸行程（即向上移動），且該活塞桿2〇〇之 調節油孔230為全開狀態時，上油室之液黯經由第二閥片33◦之通孔则 "II·向該活塞310之第-通道311，以藉由該液遷油之推動力使該第一閥片 320向下推動令該彈性件41〇壓縮，使上油室之液壓油可同時經由該活塞 310之第一通道311流向下油室，同時，上油室之液壓油經由該活塞桿如〇 之油孔240流入該活塞桿2〇〇之中空部2〇1，並經由該活塞桿2〇〇之調節油 孔230流至下油室（如第4B圖所示），使其流動面積增加而降低避震器之 阻尼。再者，該活塞桿2〇〇之第二端220與該調節桿500之固定端52〇可 藉由該固定組件4〇〇相結合，藉由該調節桿500之調節鈕530調整該活塞 組件300及該調節件420間之間距，以改變該彈性件41〇之簧力，達到調 M395749 整液愿油流量而改變避雳阳β+ s Μ ni —展錄尼變化之目的’同時，可藉由該調節件42〇 調節該活塞桿200之調節油孔23〇開閉狀態，當該活塞桿之調節油孔 “ 230為全開狀態時，其阻尼為最小；當該活塞桿·之調節油孔伽為半開 -狀態時，由於其可流動面積減半，流至該活塞桿之中空部2〇1中的液 壓油也相對減半’使其阻尼增加；當該活塞桿⑽之調節油孔刎為全閉 .狀態時’液壓油無法流至該活塞桿2〇〇之中空部2〇1中液祕僅能流入 該活塞之第-通道311或第二通道312，此時，其可流動面積最小而產 φ 生之阻尼則為最大。 另外，該活塞桿200之第二端22〇端面抵靠於該固定組件侧之鎖固 件430的凹槽431時，可藉由該凹槽431中之油封塾片44〇設置於該活塞 桿200之第二端220及該調節桿5〇〇之間，藉以避免該活塞桿咖於作動 時產生液壓油由該_空部2G1 _之問題，且該綱件·不需藉由特定 模具製作而成’且僅需人工鎖固即可，使其可簡化結構、降低零件材料、 模具及人工成本，進而提高其使用便利性。 » ，综上所述’本創作之避震器改良結構主要係，係將活塞桿2〇〇設置於 管體⑽之容置空間1〇1中，且該活塞桿套設有活塞組件_及固定 組件_，而該活塞桿之中空部2〇1穿設有調節桿5〇〇，該固定組件· 包括有彈性件410、調節件420、鎖固件430及油封墊片440，該彈性件· 設置於該活塞組件300及該調節件之間，該鎖固件設於該調節件 420之凹部421中，且該活塞桿2〇〇之第二端22〇端面抵靠於該鎖固件· 之凹槽431 ’而該油封塾片44〇設置於該活塞桿鳩之第二端及該調節 桿_之間，進而藉由改變該彈性件41〇之箐力達到調整避震器阻尼變化 9 M395749 之目的’並可藉由該油封墊片440避免該活塞桿200於作動時產生液壓油 外洩之問題，具有簡化結構、降低成本等優點，進而提高其使用便利性的 效用。 以上所述僅為本創作之較佳可行實施例，非因此即侷限本創作之專利 .圍舉凡運縣創作說明書及圖式魄所為之等效結構變化，均理 含於本創作之範咖，分咖。 ^ M395749 - 【圖式簡單說明】 第1圖係為本創作之避震器改良結構之立體結構示意圖。 1第2A及沈圖係為本創作之避震器改良結構之立體分解結構示意圖。 .第3A&3B圖係為本創作之避震器改良結構之剖面示意圖，其中，第3B 圖係為第3A圖之部份結構放大示意圖β - 帛4Α^4Β圖縣本創作之避震器改良結構之使錄態示意圖。 “圖係為習知避震器結構之立體分解結構示意圖。 • 【主要元件符號說明】 100 管體 101 容置空間 110 本體 120 蓋體 121 開口 200 活塞桿 201 中空部 210 MS y.Ll 第一端 211 第一凹槽 220 第二端 221 第二凹槽 230 調節油孔 240 油孔 300 活塞組件 活塞 第一通道 第二通道 第一閥片 第二閥片 通孔 固定組件 彈性件 調節件 凹部 卡合部 鎖固件 凹槽 穿孔 油封墊片 調節桿 調節端 固定端 調節紐 油封墊片 中空筒體 活塞桿 12^395749 V. New description: [New technical field] This creation department has a kind of avoiding «improved structure, especially refers to the kind that can be applied to four-wheel or two-wheel vehicles and has a simple structure and can reduce costs. The shock absorber improves the structure. [Prior Art] At present, most of the vehicles are mainly four-wheeled or two-wheeled vehicles (such as steam and locomotive). When the vehicle is driving, the road surface is uneven, causing epiphany, especially for the two-wheeled vehicle. At the time of the break, 'because the ground and the money are secretly passed directly to the new one, making it feel uncomfortable. Therefore, in order to solve the above problems, a shock absorber structure is proposed for being installed in a suspension system of a vehicle, thereby absorbing ground vibrations and eliminating the vibration generated by the ground vibrations. The discomfort of respecting time is minimized. As shown in Fig. 5, the shock absorber structure includes - a body with a receiving portion _ (also a pressure rainbow body), a piston rod (10), an adjusting rod 62G, a piston coffee, a bomb, and an adjustment request. The piston rod _ is disposed in the fixing portion of the hollow body 600, and the adjusting rod 62 〇 is sleeved inside the piston rod _, and the arbor is sleeved on the outer wall of the piston rod _, thereby The accommodating portion of the hollow cylinder is divided into two oil chambers. The adjusting member 650 is sleeved at one end of the piston rod (10) and fixed in combination with the end of the adjusting rod, and the spring _ is provided with the piston 63. Between the lower valve piece and the adjusting P piece 650, and the piston 63 is provided with a fixing screw _ to position the adjusting rod 62〇 by the fixing screw_the other side of the adjusting piece 650 The piston rod is in the middle, and the fixing screw has a perforation for the adjusting rod to be worn. Thereby, when the piston rod is subjected to an external force, the hydraulic oil of the oil-to-oil will enter the other oil chamber through the through hole of the piston, and the M395749 can be changed by controlling the pressure of the magazine (10) by the adjusting rod 62G. The flow rate of the oil is such that it produces different damping forces' to provide the driver with a damping effect while driving, and at the same time, to avoid 'the piston rod is used as the piston rod (10) in the ejection core via the piston rod-6H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A gap between the screw 660 and the adjustment rod 620 is provided to prevent hydraulic oil from escaping. _ Since the above 3 fixed perforated linings are special parts, they must be made of a specific mold > and the fixing screws 66 are mounted on the piston rod of the shock absorber structure. In addition, the machine is precisely buckled and locked to the locked position, which causes problems of time consuming and costly. In view of the fact that this creator is devoted to research and design, it can provide a structural solution and a shock-proof and hacking improvement structure that can reduce costs, so as to improve the ease of use and create creative motives for the creative research. By. [New Content] >· The main purpose of this creation is to provide an improved structure of the shock absorber to achieve the effect of adjusting the suspension | § damping. The purpose of the person's goal is to provide an improved structure for the shock absorber so that its components do not need to be fabricated by a specific mold to simplify the structure and reduce costs. For the above purposes, the improved structure of the shock absorber of the present invention includes a pipe body, a system, and a valley (4) having a housing; the living hybrid system has a towel (four), a first end and a third end, the first The first end of the slot is provided with a second recess, the piston rod is disposed in the accommodating space, and the first end of the s" is exposed to the tube body; the piston assembly is disposed in the accommodating space, 5 M395749 And arranging the second end of the _ _ 捍, the hollow portion of the thin piston rod; and the fixing component is disposed in the accommodating space, and is sleeved on the second end of the piston rod, and is fixed by coughing a component _ a member, a contact member, a sump member, and an oil disposed in the second groove. The elastic member is disposed between the piston assembly and the adjusting member, and the locking member is disposed in the concave portion And the second end of the piston rod abuts against the groove of the fastener, and the oil seal piece disposed on the second groove is sleeved on the adjusting rod The cough seal plate abuts against the groove of the fastener. Thereby, it is achieved by adjusting the shock resistance of the shock absorber and the assembly is not dependent on the mold fiber, which has the advantages of simplifying the structure and reducing the cost. In order to be able to further understand the characteristics, features and technical content of this creation, please refer to the following for the detailed outline of this creation, but the reference fee is limited to this creation. [Embodiment] Fig. 3B shows the three-dimensional structure schematic diagram and the three-dimensional exploded structure of the structure for the shank. The shock absorber is improved by 100, the chat, the piston assembly is thin, the fixed components, and the Qing called it to make the necessary shock absorber for the vehicle. ‘, == 咖本本义伽2G _ 找盖义相,··. Port A is formed with a sealed accommodating space (8) for accommodating hydraulic oil, and the 腕 wrist has an opening m. The piston is disposed in the accommodating space m, and the sputum has a hollow body, a first paste, a second end 22 〇, and at least an oil hole (10). And at least one of the legs, when the piston rod is placed in the butterfly (9), and the end of the piston rod 2 and the M395749 end 210 are exposed through the opening 121 of the cover 120 to be exposed to the tube body loo. The piston assembly 300 is disposed in the accommodating space 1 〇 1 and sleeved on the second end 220 of the piston rod 2 , and the piston assembly 3 〇〇 includes a piston 31 〇 and a first valve plate 32 . And the second valve piece 330, the piston 310 is provided with a plurality of first passages 311 and a second passage 312, and the piston 310 is sleeved on the second end 220 of the piston rod 200 to make the accommodating space ιοί The upper and lower oil chambers are formed, and the second valve piece 330 is provided with a through hole 331, and the first valve piece 32 and the second valve piece 3 are respectively disposed on both sides of the piston 310. The fixing component 400 is disposed in the accommodating space 1〇1 and sleeved on the second end 220 of the piston rod 2〇〇, and the fixing component 4〇〇 includes an elastic member 41〇 (such as a spring), The adjusting member 420, the locking member 430 and the oil sealing tab 440 'the elastic member 410 is disposed between the piston assembly 300 and the adjusting member 420 to make the elastic member 41 〇 abut against the first valve of the piston 31〇 The cover member 420 has a recessed portion 421 and a latching portion 422 (as shown in FIG. 2B). The latching member 43 is disposed in the recessed portion 421 and sleeved on the second end 22Q of the piston rod. The adjusting rod 500 is provided with an adjusting end 510 and a fixed end 52 (such as a hook shape), and the adjusting rod 500 is disposed in the hollow portion of the piston rod 200. 2 (n, the adjusting end 51 of the adjusting rod 5〇〇 is exposed to the first end 210 of the piston rod 200, and the first end 21 of the first end 21 is slanted between the first groove 211 and the adjusting rod 5〇〇 The gasket 540 is sealed to prevent the hydraulic oil from leaking out through the hollow portion 2〇1, and the adjusting end 51 of the adjusting rod 500 is provided with an adjustment & 53〇, the adjusting rod is closed The fixed end 52 is exposed to the second end 220 of the U-piston cup 200. 'When the locking member 430 is sleeved on the second end 220 of the piston rod 2', the second end 22 of the piston rod 2 The end face of the crucible abuts against the groove of the fastener, and the oil seal piece of the second groove 221 is sleeved on the adjustment end of the adjusting rod 5〇〇&7; Abutting against the recess 431 of the fastener _, and the fixed end of the adjusting rod diagram passes through the through hole 432 of the locking bracket and is fixedly engaged with the engaging portion of the adjusting member 42 , to be fixed by the The adjusting member 42 just adjusts the oil hole training state as the plug (4). Referring to Figures 2A to 4B, the improved structure of the shock absorber of the present invention is moved downward in the compression stroke), and the adjusting oil of the piston rod When the hole coffee is in the fully open state, the piston is trained by the spring force, and the valve body of the piston completely covers the passage 311 of the piston (10), so that the hydraulic oil of the lower oil chamber cannot pass through the piston. The first passage of 3 ι 犯 flows to the upper oil chamber, and the hydraulic oil of the lower oil chamber flows to the second passage 312 of the piston 31 () to stack the second valve 330, so that it can flow to the upper oil chamber through the second passage 312 and the through hole 331 of the second valve piece 33, and the hydraulic oil of the lower oil chamber flows into the piston rod via the adjusting oil hole of the piston rod (10) The hollow portion 201' of 200 is turbulently flowed through the oil hole 24 of the piston rod to the upper oil chamber (as shown in Fig. 4A), at which time the damping of the shock absorber is increased. The improved structure of the shock absorber is in the stretching stroke (ie, moving upward), and when the adjusting oil hole 230 of the piston rod 2 is in the fully open state, the liquid helium of the oiling chamber passes through the second valve piece 33. The hole is then connected to the first passage 311 of the piston 310 to push the first valve piece 320 downward by the driving force of the liquid to force the elastic member 41 to compress, so that the hydraulic pressure of the oil chamber The oil can flow to the oil chamber through the first passage 311 of the piston 310 at the same time, and the hydraulic oil of the oil chamber flows into the hollow portion 2〇1 of the piston rod 2 through the piston rod, such as the oil hole 240 of the piston rod, and The adjustment oil hole 230 passing through the piston rod 2 flows to the lower oil chamber (as shown in FIG. 4B), so that the flow area is increased to reduce the damping of the shock absorber. Furthermore, the second end 220 of the piston rod 2 and the fixed end 52 of the adjusting rod 500 can be combined by the fixing assembly 4, and the adjusting rod 530 of the adjusting rod 500 adjusts the piston assembly. The distance between the 300 and the adjusting member 420 is changed to change the spring force of the elastic member 41 to achieve the purpose of adjusting the flow rate of the liquid liquid of the M395749, and changing the purpose of avoiding the change of the β β + — — — — — — — — — 展 展The adjusting oil member 23 adjusts the opening and closing state of the adjusting oil hole 23 of the piston rod 200. When the adjusting oil hole of the piston rod is "full open", the damping is minimum; when the adjusting rod of the piston rod is adjusted When the gamma is in the half-open state, since the flowable area is halved, the hydraulic oil flowing into the hollow portion 2〇1 of the piston rod is also halved to increase its damping; when the piston rod (10) adjusts the oil hole 刎In the fully closed state, the hydraulic oil cannot flow into the hollow portion 2〇1 of the piston rod 2〇〇, and the liquid secret can only flow into the first passage 311 or the second passage 312 of the piston. At this time, the flowable area thereof The damping of the smallest and the production of φ is the largest. In addition, the second end of the piston rod 200 is 22〇 When the surface is abutted against the recess 431 of the fastener 430 on the side of the fixing component, the oil sealing tab 44 of the recess 431 is disposed on the second end 220 of the piston rod 200 and the adjusting rod 5〇〇. Between the two, in order to avoid the problem that the hydraulic oil is generated by the piston 2G1 _, and the profile does not need to be made by a specific mold, and only needs to be manually locked, so that It can simplify the structure, reduce the material of parts, mold and labor, and improve the convenience of use. » In summary, the main structure of the shock absorber of the present invention is to set the piston rod 2〇〇 to the pipe body. (10) The accommodation space is 1〇1, and the piston rod sleeve is provided with a piston assembly_and a fixing assembly_, and the hollow portion 2〇1 of the piston rod is provided with an adjustment rod 5〇〇, and the fixing assembly includes The elastic member 410, the adjusting member 420, the locking member 430 and the oil sealing gasket 440 are disposed between the piston assembly 300 and the adjusting member, and the locking member is disposed in the concave portion 421 of the adjusting member 420, and the elastic member The end of the second end 22 of the piston rod 2 is abutted against the groove 431' of the lock. The oil seal cymbal 44 〇 is disposed between the second end of the piston rod 及 and the adjustment rod _, and thereby the purpose of adjusting the shock absorber damping change 9 M395749 by changing the tension of the elastic member 41 ' The oil seal gasket 440 avoids the problem that the piston rod 200 generates hydraulic oil leakage when it is actuated, and has the advantages of simplifying the structure, reducing the cost, and the like, thereby improving the usability of use. The best feasible embodiment is not limited to the patent of the creation. The equivalent structural changes of the Yunyun County creation manual and the schema are all included in the creation of the coffee, and the coffee. ^ M395749 - [Picture Brief Description] The first figure is a three-dimensional structure diagram of the improved structure of the shock absorber of the present invention. 1 2A and Shen Figure are schematic diagrams of the three-dimensional decomposition structure of the improved structure of the shock absorber. The 3A&3B diagram is a schematic cross-sectional view of the improved structure of the shock absorber of the present invention, wherein the 3B diagram is a partial enlarged view of the structure of the 3A diagram β - 帛4Α^4Β A schematic diagram of the improved structure. “The diagram is a schematic diagram of the three-dimensional exploded structure of the conventional shock absorber structure. • [Main component symbol description] 100 Tube 101 Housing space 110 Body 120 Cover 121 Opening 200 Piston rod 201 Hollow 210 MS y.Ll First End 211 first groove 220 second end 221 second groove 230 adjustment oil hole 240 oil hole 300 piston assembly piston first passage second passage first valve piece second valve piece through hole fixing assembly elastic member adjustment member concave portion card Joint lock groove perforation oil seal gasket adjustment rod adjustment end fixed end adjustment button oil seal gasket hollow cylinder piston rod 12