TWM574194U - Composite piston ring structure of inflator - Google Patents

Abstract

本創作係提供一種充氣機之複合式活塞環結構，包括有第一、二活塞環：第一活塞環設有第一剖槽並於其外部壁面凸出設有凸部，第二活塞環設有一第二剖槽；將第一活塞環套設於活塞其外部壁面，再將第二活塞環套設於第一活塞環其外部壁面並與凸部形成干涉；如此，利用第一、二活塞環可以是聚四氟乙烯(即鐵氟龍)材質，而具自潤滑性、耐腐蝕性、密封性及耐磨性等特性，達到套設有第一、二活塞環之活塞可應用於無油空壓機等機具；再透過第一、二活塞環之第一、二剖槽呈錯位(如：錯位180度)設置，更能確保避免氣體由第一、二活塞環之第一、二剖槽之間洩露，達到有效提升空壓機之工作效益。 The present invention provides a composite piston ring structure of an inflator, comprising first and second piston rings: a first piston ring is provided with a first split groove and a convex portion is protruded on an outer wall surface thereof, and the second piston ring is provided a second splitting groove; the first piston ring is sleeved on the outer wall surface of the piston, and the second piston ring is sleeved on the outer wall surface of the first piston ring and interferes with the convex portion; thus, the first and second pistons are utilized The ring can be made of polytetrafluoroethylene (Teflon), and has the characteristics of self-lubricity, corrosion resistance, sealing and wear resistance. The piston with the first and second piston rings can be applied to none. Oil air compressors and other equipment; through the first and second piston rings, the first and second slots are misplaced (such as: 180 degrees offset), which ensures that the first and second pistons are avoided by the first and second piston rings. Leakage between the slots, to effectively improve the efficiency of the air compressor.

Description

充氣機之複合式活塞環結構 Composite piston ring structure of inflator

本創作有關一種充氣機之複合式活塞環結構，尤指一種將具聚四氟乙烯材質之第一、二活塞環套設於活塞其外部壁面，使得活塞可應用於無油空壓機，再透過第一、二活塞環所設之第一、二剖槽呈錯位(如：錯位180度)設置，藉以避免氣體從第一、二活塞環之第一、二剖槽之間洩露，達到有效解決活塞式無油空壓機於活塞壓縮過程中，被壓縮的空氣容易洩露，造成空壓機容積效率降低，影響壓縮機的使用性能的問題。 The present invention relates to a composite piston ring structure of an inflator, in particular to a first and a second piston ring with a PTFE material sleeved on the outer wall surface of the piston, so that the piston can be applied to an oil-free air compressor, and then the piston can be applied to an oil-free air compressor. The first and second split slots provided by the first and second piston rings are arranged in a misaligned position (for example, 180 degrees of misalignment) to prevent gas from leaking from the first and second split grooves of the first and second piston rings, thereby achieving effective Solve the problem that the piston type oil-free air compressor is easy to leak when the piston is compressed, which causes the air compressor to decrease in volumetric efficiency and affect the performance of the compressor.

按，空壓機或充氣機主要可運用於氣動工具、車用輪胎或多種需求充氣器物…等，用以做為氣動或氣壓之來源；因此，在DIY自己動手做之領域中，空壓機之角色已成為工作場所或一般家庭修繕之必要氣動設備。 Press, air compressor or inflator can be mainly used for pneumatic tools, vehicle tires or a variety of required aerators, etc., used as a source of pneumatic or pneumatic pressure; therefore, in the field of DIY do-it-yourself, air compressor The role has become a necessary pneumatic device for workplace or general home repairs.

就空壓機之工作原理，主要是由電動機直接驅動壓縮機，使壓縮機之曲軸產生高速鋼旋轉運動，進而帶動連桿驅使活塞產生上、下往複性運動，以引起氣缸容積變化；因此，在壓縮行程中，由於氣缸容積的縮小，被壓縮的空氣經由單向閥(止回閥)最後進入儲氣罐內，用來作為釋放壓力氣體或氣動之動能。 As for the working principle of the air compressor, the compressor is directly driven by the electric motor to make the crankshaft of the compressor produce high-speed steel rotary motion, and then the connecting rod drives the piston to generate upper and lower reciprocating motions to cause cylinder volume change; therefore, During the compression stroke, the compressed air finally enters the air reservoir via the one-way valve (check valve) due to the reduction of the cylinder volume, and is used as a kinetic energy for releasing pressurized gas or pneumatic.

又，目前大多數小型無油空壓機的氣缸工作方式，大多採用搖擺式之橡膠皮碗結構，作為密封或多道氣環密封；然而，所述搖擺式之橡膠皮碗結構其活塞環於運行時，會產生受力不均，導致摩擦力過大，使得活塞環容易因磨損而降低其使用年限，最終造成壓縮空氣洩漏等缺陷，致使影響空壓機之工作能效與壽命。 Moreover, most of the cylinder working modes of the small oil-free air compressors are mostly made of a rocking rubber cup structure, which is sealed or multi-gas ring seal; however, the rocking rubber cup structure has a piston ring During operation, uneven force is generated, resulting in excessive friction, which makes the piston ring easy to reduce its service life due to wear, and finally causes defects such as leakage of compressed air, which affects the energy efficiency and life of the air compressor.

此外，所述習者搖擺式之橡膠皮碗結構，所採用之活塞結構較為複雜，使得空壓機的體積也相對的增大。 In addition, the piston structure of the swinging rubber cup body is complicated, and the volume of the air compressor is relatively increased.

因此，如何提供一種有效解決活塞式無油空壓機於活塞壓縮過程中，被壓縮的空氣容易洩露，造成空壓機工作效率降低的問題，即為本創作所欲解決之課題所在。 Therefore, how to provide an effective solution to the piston-type oil-free air compressor in the piston compression process, the compressed air is easy to leak, resulting in the problem of reduced efficiency of the air compressor, which is the subject of the creative solution.

根據本創作所揭露的充氣機之複合式活塞環結構，尤指套設於一無油空壓機之活塞外部，所述複合式活塞環結構包括有一第一活塞環及一第二活塞環：第一活塞環設有一第一剖槽，且第一活塞環其外部壁面凸出設有一凸部；第二活塞環設有一第二剖槽。所述活塞於其外部壁面凹設有一第一凹部，第一活塞環套設於第一凹部，第二活塞環套設於第一活塞環其外部壁面並與凸部形成干涉。 According to the present invention, the composite piston ring structure of the inflator is especially disposed outside the piston of an oil-free air compressor, and the composite piston ring structure includes a first piston ring and a second piston ring: The first piston ring is provided with a first dissection groove, and the first piston ring has a convex portion protruding from the outer wall surface thereof; and the second piston ring is provided with a second dissection groove. The piston has a first recessed portion recessed on the outer wall surface thereof. The first piston ring is sleeved on the first recessed portion, and the second piston ring is sleeved on the outer wall surface of the first piston ring and interferes with the convex portion.

本創作之技術特徵在於，利用第一活塞環及第二活塞環可以是聚四氟乙烯(即鐵氟龍)材質，而具自潤滑性、耐腐蝕性、密封性及耐磨性等特性，達到套設有第一活塞環及第二活塞環之活塞可應用於無油空壓機等機具；再透過第一活塞環之第一剖槽及第二活塞環之第二剖槽呈錯 位(如：錯位180度)設置，藉以確保避免汽缸內被壓縮的氣體由第一剖槽及第二剖槽之間的間隙洩露，達到有效提升空壓機之工作效益；再透過第一活塞環及第二活塞環之特性並套設結合於活塞，而可有效簡化活塞之機構設計，達到可進一步縮減空壓機的體積。 The technical feature of the present invention is that the first piston ring and the second piston ring can be made of polytetrafluoroethylene (ie, Teflon), and have the characteristics of self-lubrication, corrosion resistance, sealing and wear resistance. The piston that reaches the first piston ring and the second piston ring can be applied to an oil-free air compressor and the like; and the second slot of the first piston ring and the second slot of the second piston ring are wrong. The position (for example, 180 degrees of misalignment) is set to ensure that the compressed gas in the cylinder is leaked from the gap between the first slot and the second slot, thereby effectively improving the working efficiency of the air compressor; The characteristics of the ring and the second piston ring are combined with the piston, which can effectively simplify the mechanism design of the piston, thereby further reducing the volume of the air compressor.

1‧‧‧第一活塞環 1‧‧‧First Piston Ring

11‧‧‧第一剖槽 11‧‧‧First slot

12‧‧‧凸部 12‧‧‧ convex

2‧‧‧第二活塞環 2‧‧‧Second Piston Ring

21‧‧‧第二剖槽 21‧‧‧Second slot

3‧‧‧漲緊環 3‧‧‧ tightening ring

31‧‧‧第三剖槽 31‧‧‧ Third slot

4‧‧‧活塞 4‧‧‧Piston

41‧‧‧第一凹部 41‧‧‧First recess

42‧‧‧第二凹部 42‧‧‧Second recess

5‧‧‧導向環 5‧‧‧ Guide ring

6‧‧‧氣缸 6‧‧‧ cylinder

第一圖：係本創作充氣機之複合式活塞環結構一應用實施例示意圖。 The first figure is a schematic diagram of an application example of a composite piston ring structure of the present inflator.

第二圖：係本創作充氣機之複合式活塞環結構一分解圖。 The second figure is an exploded view of the composite piston ring structure of the present inflator.

第三圖：係本創作充氣機之複合式活塞環結構一剖面圖。 The third figure is a sectional view of the composite piston ring structure of the present inflator.

第四圖：係本創作第三圖之圈示處放大示意圖。 The fourth picture is an enlarged view of the circle shown in the third picture of this creation.

為使 貴審查員方便簡捷瞭解本創作之其他特徵內容與優點及其所達成之功效能夠更為顯現，茲將本創作配合附圖，詳細敘述本創作之特徵以及優點，以下之實施例係進一步詳細說明本新型之觀點，但非以任何觀點限制本新型之範疇。 In order to make it easier for your examiner to understand the other features and advantages of this creation and the effects achieved by it, this article is combined with the drawings to describe in detail the features and advantages of this creation. The following examples are further The present invention is described in detail, but does not limit the scope of the present invention in any way.

請配合參閱第一至四圖所示，本創作係揭露一種充氣機之複合式活塞環結構，尤指套設於一無油空壓機之活塞4外部，所述複合式活塞環結構包括有一第一活塞環1、一第二活塞環2及一漲緊環3。 Please refer to the first to fourth figures. The present invention discloses a composite piston ring structure of an inflator, especially disposed outside the piston 4 of an oil-free air compressor. The composite piston ring structure includes a The first piston ring 1, the second piston ring 2 and a tension ring 3.

第一活塞環1設有一第一剖槽11，使得第一活塞環1具彈性擴張之機能，且第一活塞環1其外部壁面凸出設有一凸部12，凸部12可相鄰第一活塞環1其頂部位置。所述第一活塞環1可以是聚四氟乙烯 ((Poly tetra fluoroethylene；簡稱PTFE)，又名鐵氟龍)材質，令第一活塞環1自潤滑性、耐腐蝕性、密封性及耐磨性等特性。 The first piston ring 1 is provided with a first slot 11 so that the first piston ring 1 has the function of elastic expansion, and the first piston ring 1 has a convex portion 12 protruding from the outer wall surface thereof, and the convex portion 12 can be adjacent to the first portion. The piston ring 1 has its top position. The first piston ring 1 may be polytetrafluoroethylene (Poly tetra fluoroethylene (referred to as PTFE), also known as Teflon) material, the first piston ring 1 self-lubricating, corrosion resistance, sealing and wear resistance.

第二活塞環2設有一第二剖槽21，使得第二活塞環2具彈性擴張之機能；所述第二活塞環2可以是聚四氟乙烯((Poly tetra fluoroethylene；簡稱PTFE)，又名鐵氟龍)材質，令第二活塞環2自潤滑性、耐腐蝕性、密封性及耐磨性等特性。 The second piston ring 2 is provided with a second splitting groove 21, so that the second piston ring 2 has the function of elastic expansion; the second piston ring 2 may be polytetrafluoroethylene (PTFE), aka Teflon material makes the second piston ring 2 self-lubricating, corrosion-resistant, sealing and wear-resistant.

漲緊環3設有一第三剖槽31，使得漲緊環3具彈性擴張之機能；所述漲緊環3可以是不鏽鋼材質。 The tension ring 3 is provided with a third slot 31, so that the tension ring 3 has the function of elastic expansion; the tension ring 3 can be made of stainless steel.

所述第一活塞環1、第二活塞環2及漲緊環3，可分別套設於同一位置；且該漲緊環3設置於第一活塞環1其內圈，而第二活塞環2則套設於第一活塞環1其外圈。 The first piston ring 1, the second piston ring 2 and the tension ring 3 can be respectively sleeved at the same position; and the tension ring 3 is disposed on the inner ring of the first piston ring 1 and the second piston ring 2 Then, it is sleeved on the outer ring of the first piston ring 1.

本創作試舉一應用實施例，其中；所述活塞4其外部壁面凹設有一第一凹部41，且活塞4其外部壁面並相對於第一凹部41下方另凹設有一第二凹部42；藉此，所述漲緊環3可先套設於活塞4之第一凹部41位置，再將第一活塞環1套設於漲緊環3其外部並位於活塞4之第一凹部41位置，最後將第二活塞環2套設於第一活塞環1其外部並位於活塞4之第一凹部41位置，且令第二活塞環2與第一活塞環1之凸部12形成干涉；又，所述活塞4之第二凹部42套設有一導向環5，而將套設有第一活塞環1、第二活塞環2、漲緊環3及導向環5之活塞4再容置於一無油空壓機所設之氣缸6內，使得第一活塞環1之凸部12與第二活塞環2可與氣缸6其內壁形成密合狀態。 The present invention is an application embodiment in which the piston 4 has a first recess 41 recessed on its outer wall surface, and a second recess 42 is recessed from the outer wall surface of the piston 4 and below the first recess 41; Therefore, the tension ring 3 can be sleeved at the first recess 41 of the piston 4, and then the first piston ring 1 is sleeved on the outside of the tension ring 3 and located at the first recess 41 of the piston 4. Finally, The second piston ring 2 is sleeved on the outside of the first piston ring 1 and located at the first recess 41 of the piston 4, and the second piston ring 2 interferes with the convex portion 12 of the first piston ring 1; The second recess 42 of the piston 4 is sleeved with a guiding ring 5, and the piston 4 sleeved with the first piston ring 1, the second piston ring 2, the tension ring 3 and the guiding ring 5 is again placed in an oil-free state. The air cylinder 6 is provided in the air cylinder so that the convex portion 12 and the second piston ring 2 of the first piston ring 1 can be brought into close contact with the inner wall of the cylinder 6.

此外，第一活塞環1之第一剖槽11與第二活塞環2之第二 剖槽21呈錯位(如：錯位180度)設置；又，漲緊環3之第三剖槽31與第一活塞環1之第一剖槽11呈錯位(如：錯位180度)設置。 In addition, the first slot 11 of the first piston ring 1 and the second slot 2 of the second piston ring 2 The slot 21 is disposed in a misaligned position (eg, 180 degrees offset); in addition, the third slot 31 of the tension ring 3 is offset from the first slot 11 of the first piston ring 1 (eg, 180 degrees offset).

如此，活塞4透過其外部套設有第一活塞環1、第二活塞環2、漲緊環3，使得活塞4可與氣缸6形成密合狀態。利用第一活塞環1及第二活塞環2可以是聚四氟乙烯(即鐵氟龍)材質，而具自潤滑性、耐腐蝕性、密封性及耐磨性等特性，達到套設有第一活塞環1及第二活塞環2之活塞4可應用於無油空壓機等機具；再透過第一活塞環1之第一剖槽11、第二活塞環2之第二剖槽21、以及漲緊環3之第三剖槽31分別呈錯位(如：錯位180度)設置，藉以確保避免汽缸6內被壓縮的氣體由第一剖槽11、第二剖槽21及第三剖槽31之間的間隙洩露，達到有效提升空壓機之工作效益。 Thus, the piston 4 is sleeved with the first piston ring 1, the second piston ring 2, and the tension ring 3 through its outer portion, so that the piston 4 can be brought into close contact with the cylinder 6. The first piston ring 1 and the second piston ring 2 may be made of polytetrafluoroethylene (ie, Teflon), and have self-lubricating property, corrosion resistance, sealing property and wear resistance, etc. The piston 4 of the piston ring 1 and the second piston ring 2 can be applied to a tool such as an oil-free air compressor; the first slot 11 of the first piston ring 1 and the second slot 21 of the second piston ring 2, And the third slot 31 of the tension ring 3 is respectively disposed in a misalignment (for example, 180 degrees offset), thereby ensuring that the compressed gas in the cylinder 6 is prevented from being cut by the first slot 11, the second slot 21 and the third slot. The gap between the 31 leaks, which effectively improves the working efficiency of the air compressor.

再透過第一活塞環1及第二活塞環2之材質特性並套設結合於活塞4，而可有效簡化活塞4之機構設計，達到可進一步縮減空壓機的體積。 Through the material characteristics of the first piston ring 1 and the second piston ring 2 and the coupling to the piston 4, the mechanism design of the piston 4 can be simplified, and the volume of the air compressor can be further reduced.

Claims (8)

一種充氣機之複合式活塞環結構，尤指套設於一活塞之外部，該複合式活塞環結構包括有：一第一活塞環，設有一第一剖槽，該第一活塞環其外部壁面凸出設有一凸部；一第二活塞環，設有一第二剖槽；活塞於其外部壁面凹設有一第一凹部，該第一活塞環套設於該第一凹部，該第二活塞環套設於該第一活塞環其外部壁面並與該凸部形成干涉。 The utility model relates to a composite piston ring structure of an inflator, in particular, sleeved on the outside of a piston. The composite piston ring structure comprises: a first piston ring, and a first split groove, the first piston ring has an outer wall surface thereof The protrusion is provided with a protrusion; a second piston ring is provided with a second slot; the piston is recessed with a first recess on the outer wall thereof, and the first piston ring is sleeved on the first recess, the second piston ring The sleeve is sleeved on an outer wall surface of the first piston ring and interferes with the protrusion. 如請求項1所述之充氣機之複合式活塞環結構，其中該第一活塞環及該第二活塞環可以是聚四氟乙烯(PTFE)材質。 The composite piston ring structure of the inflator of claim 1, wherein the first piston ring and the second piston ring are made of polytetrafluoroethylene (PTFE). 如請求項1所述之充氣機之複合式活塞環結構，其中該第一活塞環之第一剖槽與該第二活塞環之第二剖槽呈錯位設置。 The composite piston ring structure of the inflator of claim 1, wherein the first slot of the first piston ring and the second slot of the second piston ring are offset. 如請求項3所述之充氣機之複合式活塞環結構，其中該第一剖槽與該第二剖槽呈錯位180度設置。 The composite piston ring structure of the inflator of claim 3, wherein the first dissection groove and the second dissection groove are disposed at a position of 180 degrees. 如請求項1所述之充氣機之複合式活塞環結構，其中進一步包括有一漲緊環，該漲緊環設有一第三剖槽，該漲緊環套設於該第一凹部並位於該第一活塞環之內圈。 The composite piston ring structure of the inflator of claim 1 further comprising a tension ring, the tension ring being provided with a third split groove, the tension ring being sleeved in the first recess and located at the first The inner ring of a piston ring. 如請求項5所述之充氣機之複合式活塞環結構，其中該第一活塞環之第一剖槽與漲緊環之第三剖槽呈錯位設置。 The composite piston ring structure of the inflator of claim 5, wherein the first slot of the first piston ring and the third slot of the tension ring are offset. 如請求項6所述之充氣機之複合式活塞環結構，其中該第一剖槽與該第三剖槽呈錯位180度設置。 The composite piston ring structure of the inflator of claim 6, wherein the first dissection groove and the third dissection groove are disposed at a position of 180 degrees. 如請求項5所述之充氣機之複合式活塞環結構，其中該漲緊環可以是不銹鋼材質。 The composite piston ring structure of the inflator of claim 5, wherein the tension ring is made of stainless steel.