TW381153B - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- TW381153B TW381153B TW088103077A TW88103077A TW381153B TW 381153 B TW381153 B TW 381153B TW 088103077 A TW088103077 A TW 088103077A TW 88103077 A TW88103077 A TW 88103077A TW 381153 B TW381153 B TW 381153B
- Authority
- TW
- Taiwan
- Prior art keywords
- valve seat
- valve
- baffle
- connecting member
- connection member
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 5
- 238000003754 machining Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000005192 partition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 241000283690 Bos taurus Species 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 210000002318 cardia Anatomy 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/042—Check valves with guided rigid valve members shaped as balls with a plurality of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
曰 修正 五、發明說明（2) 成，經質地較m妾：：體、擋板由質地很硬之材料製 她⑷4::=:::=措=在-起， 求之高耐用性。 在、于丨生’又各易實現所要 〈解決手段〉 為達到上述目的之本發明 座；球形體，藉由流體之構每的特徵包括：閥fl 制備有流體路之上述球形移動量二：關，擋板，控 閥門座和推板組裝成—體 亥 2構件，將上述 閥門^球形體、播板之硬度低:連接構件之材料硬度較 這裡閥門座和擋板可分別用連接構 而且閥門座戋浐柘由 干文嫁保持。 纽裝成一體^座或拾板中之一者與連接構件係為可分解地 之第2還/=板、F她也可分別由與連接構輪一㈣ 之第2連接構件支撐保持，連接 牛、，且成一體 分解地組裝成一體者。 弟2連接構件係為可 〈作用〉 關於本發明之構成，閥門座、球形體 =硬質材料製成，由於連接構件之材 =可用陶甍 擋板質地軟’故經精密地機械加： 形 ，、球形體、擋板可使用質地“==就是說，閥 耗、破損、變形控制在最小範圍之内。#枓，從而將摩 球形體可用諸如氣化石夕（Sl3N4)等其咸氏硬度Amendment 5. Description of the invention (2), the texture is relatively m 妾 :: The body and baffle are made of a very hard material. She 4 :: = ::: = measure = in-from, for high durability. In the "Yisheng", each of them can easily achieve the "solution" of the present invention to achieve the above purpose; the characteristics of the spherical body by the structure of the fluid include: the valve fl is prepared with the fluid path of the above-mentioned spherical movement two: The valve, baffle, control valve seat and push plate are assembled into a body-two component. The hardness of the above-mentioned valve spheroid and seeding plate is low: the hardness of the material of the connecting member is greater than that of the valve seat and the baffle. The valve seat is held by Qianwen. One of the buttons or one of the brackets or the pick-up plate and the connecting member are detachable second return / = plates, F. She can also be supported and held by the second connecting member that is connected to the connecting wheel. Cattle, and assembled into a single body. Brother 2 connecting member is <action> About the structure of the present invention, the valve seat, spherical body = made of hard material, because the material of the connecting member = can be made of potter's baffle, the texture is soft, so it is mechanically added: , Spheres, baffles can use texture "== that is, valve consumption, damage, deformation is controlled within the minimum range. # 枓, so that the spherical spheres can be used such as gasified stone eve (Sl3N4) and its salt hardness
第5頁 1999· 11. 29. 005 度地動作、具有耐用 基式果中夕L ^ t, 之止回閥門 =開閉動作。通; 間放置一可移動之球 。該裂置係根據球形 一個方向流通，可阻 材製成，球體與擋板 成，從而在通常情況 封性良好但是耐用性 用性強，但液體密封 座和擋板藉由高速、 因撞擊或空穴作用帶 不得不使用這種财用 板組褽在一起時，兩 效’因此該結合部必 的係提供—種止回閥 五、發明說明（1) 〈技術領域〉 本發明係有關於一種高速、高頻 性強之止回閥門。 〈背景技術〉 組裳於水喷射間之橫向裝入用柱 需要以每分鐘1 0 0 0回以上高速、高頻 採用根據球形體移動開閉閥門之球形 此裝置在閥門座和球體的擋板之 形體，閥門座和擋板係組裝成一體者 體之移動開閉閥門座，只允許流體沿 止流體之倒流。 而且，閥門座係由樹脂材料或鋼 分別，樹脂材料、不鏽鋼材或銅材製 下可貫現良好之密封性。 〈發明所欲解決之問題> 根據以往技術，樹脂材料雖然密 差、’，不，鋼材或鋼材雖比樹脂材料耐 性並不是十分好。由於球形體、閥門 Ϊ頻ΐ地開閉動作，不可避免地引起 來之變开> 或者偏摩損。另外，之所以 =差之材料，係因為當將閥門座和擋 者之結合部需具有密封液體流過之功 須進行精密地加工。 有鑒於以往之技術，本發明之目 第4頁 年 曰 案號8810加77 五、發明說明⑸ 彼助l4b，台階部14a、鑲嵌肋14b分別广^ 13下面之鑲嵌肋13e緊貼，通 封:身門座η、擋板 以下對各構件之構成作詳細說明。 而裒成 稽板1 3係由陶瓷或超硬合 邱’由g放鼾壯夕』 口金材科製成。擋板1 3之上 ：i3b m ί ；rM3a'Ua...…隔成-扇形之開口 # #真：1，Jt 1 π & β隔板部1 3a之内側面限制球形體1 2之 2 f導面？ Ϊ將球形體12沿閥門座11之軸方向引 二相二Ίϊ，引導面i3c、l3c......係具有與移 =面二 並與球形體12直徑相同面朝下 之球面連接。而且，於各隔板片13a' 13a…..·之中央交 部，擒板13之轴上設有孔13d。於擋板13下面，連接構件 14之鑲嵌助14b之内侧設置有鑲嵌肋13e。 擋板13和連接構件η通過鑲嵌肋13e、14b可分解地組 裝_一體，鑲嵌肋13e與連接構件14之間設有一缝隙4，在 缝隙d處可插入工具擴大此縫隙d使擋板1 3與連接構件1 4之 間可簡單地拆開。 如圖3所示’止回閥門1 〇被上下一對同方向地組裝在 由具有柱塞部21、圓筒部22之殼體20的圓筒部22内（圖1、 圖3)’構成水噴射間之橫向裝入用柱塞式泵。 柱塞部21係由圓筒部22於中間處分支而形成。柱塞部 21經未圖示之驅動電源使柱塞2丨&可前後移動地插入。 吸入側（圖3之下側）之止回閥門1 〇係經用螺合於圓筒 部2 2之擠壓構件2 3被固定於圓筒部2 2之環狀台階部2 2 a 上。擠壓構件23之上端外周面接觸部23a與連接構件14之Page 5 1999 · 11. 29. 005 degree action, with durable basic type L ^ t, non-return valve = opening and closing action. Pass; place a movable ball between. The splitting system flows according to one direction of the sphere. It can be made of a barrier material. The sphere and the baffle are formed, so that the seal is good but the durability is strong in general. When the cavity action band has to be used together with this kind of financial board group, the two effects' so the joint must provide-a check valve V. Description of the invention (1) <Technical Field> The present invention relates to A high-speed, high-frequency non-return valve. <Background technology> The horizontal installation column for the group of skirts in the water jet needs to use a high-speed, high-frequency, high-frequency, high-frequency, high-frequency, high-frequency, high-frequency, high-frequency sphere. The body, valve seat and baffle are assembled as a single body to open and close the valve seat, allowing only fluid to flow backwards. In addition, the valve seat is made of a resin material or steel, and a resin material, a stainless steel material, or a copper material can achieve good sealing performance. <Problems to be Solved by the Invention> According to the prior art, although the resin material is tight, 'No, the steel or steel material is not very resistant to the resin material. Spherical bodies and valves frequently open and close, which inevitably causes them to open> or wear out. In addition, the reason for the poor material is that when the joint between the valve seat and the stopper has the function of sealing liquid flowing through, it must be precisely processed. In view of the past technology, the title of the present invention is on the fourth page of the present invention, case number 8810 plus 77. V. Description of the invention ⑸ 助 14b, the step portion 14a, and the inlaid rib 14b are respectively ^ 13 and the inlaid rib 13e is closely attached and sealed : Body door base η, baffle The structure of each component is described in detail below.裒 成 Jiban 1 3 is made of ceramics or super-hardened qiu ′ by g fang 鼾 Zhuang Xi ”mouth gold material branch. Above the baffle 1 3: i3b m; rM3a'Ua ... ... partitioned into-sector-shaped openings # # 真 ： 1, Jt 1 π & β partition portion 1 3a The inner side restricts the spherical body 12 2 2 f guide surface? (2) Lead the spherical body 12 in two phases and two directions along the axis of the valve seat 11. The guide surfaces i3c, l3c, ... have a spherical surface connected to the second surface and the same diameter as the spherical body 12 facing downward. Further, a hole 13d is provided on the axis of the pallet 13 at the center intersection of each of the partition pieces 13a '13a .... Below the baffle plate 13, inlay ribs 13e are provided inside the inlaying aid 14b of the connecting member 14. The baffle 13 and the connecting member η are detachably assembled by the inlay ribs 13e, 14b. A gap 4 is provided between the inlay rib 13e and the connecting member 14, and a tool can be inserted at the gap d to expand this gap d to make the baffle 1 3 It can be easily disassembled from the connecting member 14. As shown in FIG. 3, 'the non-return valve 10 is assembled in a pair of up and down in the same direction in the cylindrical portion 22 (FIG. 1, FIG. 3) of the housing 20 having the plunger portion 21 and the cylindrical portion 22' Plunger pump for horizontal installation in water spray booth. The plunger portion 21 is formed by branching the cylindrical portion 22 in the middle. The plunger portion 21 is inserted into the plunger 2 in a forward and backward direction by a driving power source (not shown). The check valve 1 0 on the suction side (lower side in FIG. 3) is fixed to the annular step portion 2 2 a of the cylindrical portion 22 by the pressing member 2 3 screwed to the cylindrical portion 22. The outer peripheral surface contact portion 23a of the upper end of the pressing member 23 and the connecting member 14
曰 修正 五、發明說明（2) 成，經質地較m妾：：體、擋板由質地很硬之材料製 她⑷4::=:::=措=在-起， 求之高耐用性。 在、于丨生’又各易實現所要 〈解決手段〉 為達到上述目的之本發明 座；球形體，藉由流體之構每的特徵包括：閥fl 制備有流體路之上述球形移動量二：關，擋板，控 閥門座和推板組裝成—體 亥 2構件，將上述 閥門^球形體、播板之硬度低:連接構件之材料硬度較 這裡閥門座和擋板可分別用連接構 而且閥門座戋浐柘由 干文嫁保持。 纽裝成一體^座或拾板中之一者與連接構件係為可分解地 之第2還/=板、F她也可分別由與連接構輪一㈣ 之第2連接構件支撐保持，連接 牛、，且成一體 分解地組裝成一體者。 弟2連接構件係為可 〈作用〉 關於本發明之構成，閥門座、球形體 =硬質材料製成，由於連接構件之材 =可用陶甍 擋板質地軟’故經精密地機械加： 形 ，、球形體、擋板可使用質地“==就是說，閥 耗、破損、變形控制在最小範圍之内。#枓，從而將摩 球形體可用諸如氣化石夕（Sl3N4)等其咸氏硬度Amendment 5. Description of the invention (2), the texture is relatively m 妾 :: The body and baffle are made of a very hard material. She 4 :: = ::: = measure = in-from, for high durability. In the "Yisheng", each of them can easily achieve the "solution" of the present invention to achieve the above purpose; the characteristics of the spherical body by the structure of the fluid include: the valve fl is prepared with the fluid path of the above-mentioned spherical movement two: The valve, baffle, control valve seat and push plate are assembled into a body-two component. The hardness of the above-mentioned valve spheroid and seeding plate is low: the hardness of the material of the connecting member is greater than that of the valve seat and the baffle. The valve seat is held by Qianwen. One of the buttons or one of the brackets or the pick-up plate and the connecting member are detachable second return / = plates, F. She can also be supported and held by the second connecting member that is connected to the connecting wheel. Cattle, and assembled into a single body. Brother 2 connecting member is <action> About the structure of the present invention, the valve seat, spherical body = made of hard material, because the material of the connecting member = can be made of potter's baffle, the texture is soft, so it is mechanically added: , Spheres, baffles can use texture "== that is, valve consumption, damage, deformation is controlled within the minimum range. # 枓, so that the spherical spheres can be used such as gasified stone eve (Sl3N4) and its salt hardness
第5頁 1999· 11. 29. 005Page 5 1999 11. 29. 005
示之故舻征认。而且，擠壓構件23還被連接在未圖 々丨l體i、、、，σ源相連接之連接管2 3 b上。 修正The reason is shown. Moreover, the pressing member 23 is also connected to the connecting pipes 2 3 b to which the sigma sources i, ,, and σ are connected. Amend
於圓ft :二Γ ί側(圖3之上側)之止回閥門10係經螺合 構件25被固定於環狀台階部娜上。擠 構下端外周接觸部25a與擋板13之間裝有-密封 連接。於贫ί，擠壓構件25還與排出液體之排岀管25b相 之内二構件25内，隔板13之開。部咖與排出管25b t 相調整使其形成漏斗狀逐減部25c。另外，也可 分別在擠壓構件23、25之螺合處袭用未圖示之密卜封材也料了。 奋始2 ί構成之柱塞式泵p當其插入柱塞2 la從圖3所示之 二^置移至虛線位置時，假設插入柱塞21a之有效截面 =、移動距離為a、則通過吸入侧之止回闕門i〇可將體 積為V = aS之流體吸入圓筒部22内（圖3之箭頭u方向）。而 當插入柱塞21a反方向推進時，通過排出侧之止回閥 可將同體積\’之流體從圓筒部22内排出（圖3之箭頭k2 方向）。攻時，吸入動作係排出側之止回閥門丨〇中球形體 12將閥門座11關閉能阻止液體之倒流，排出動作係、吸入側 之止回閥門1 0同樣也能阻止液體之倒流。 還有，柱塞式泵Ρ由於被放置成吸入側在下排出側在 上，插入柱塞21a處於靜止時，由於重力之存在吸入侧、 排出侧之止回閥門丨〇之球形體12處於封閉閥門座丨丨之狀 態。而且，密封構件24 ' 26使組袈在殼體2〇内各自相應止 回閥門1 G具有密水性’可防止來自殻體2G流體之漏岀。 圖4係本發明有關止回閥門之其它實施例的示意圖。 1600、表面粗糙度Ra $〇. i ^^之陶瓷材料為佳。另 門座和擋板可用具有韌性且耐摩性強之諸如二氧化卜，閥 (Zr〇2)等其威氏硬度為Hv = 1 400之陶瓷材料為佳。^， 球形體緊貼之閥門座之表面精糙度最好為Ra各〇 疋。、 f，閥門座之威氏硬度也可為Hvg14〇〇，也可較"二： ^氏硬度高。€就是說，由於閥門座相對於球形體^ 表：：ί ’而5求形體冑著流體之流動I漸地旋轉幾乎全部 都與閥門座表面均等地接觸，如果閥門座之硬 形體咼，則可使兩者之摩損處於相同程度。 / 另外，閥門座、球形體、擋板可分別用超硬合 f 製成錢對其面表層進行硬2 :版士。丨外’為了達到使閥門座和擋板13表層硬化之目 :材；其與球形體接觸部分貼-層陶莞或超硬合金 連接構件可以用諸如合成樹脂等材 ，諸如聚咖(Polyacetal)、2^合成樹脂 ^ olycarbonate)、聚砜（P〇1ySulf〇 (PoWmide)等工程塑料者。而且 合成橡膠代替合成樹脂。 連接構件材枓也可用 用連接構件支撐保持閥門座之構成的 形體閉鎖引起之撞擊可通過構件吸收。 ：球 支撐保持擋板之構成的#，擋板 ： 可通過連接構件吸收。 K办體開放引起之撞擊 如閥門座和擋板中之-者與連接構件為可分解的話，On the circle ft: the two check valves 10 on the upper side (upper side in FIG. 3) are fixed to the annular stepped portion 25 by a screwing member 25. The extruded lower end outer peripheral contact portion 25a and the baffle plate 13 are provided with a hermetic connection. In the poor state, the squeeze member 25 is also inside the second member 25, and the partition plate 13 is opened with respect to the drain pipe 25b for discharging the liquid. The portion coffee is adjusted to the discharge pipe 25b t to form a funnel-shaped progressively decreasing portion 25c. Alternatively, a sealing material (not shown) may be used at the screw joints of the pressing members 23 and 25, respectively. When the plunger pump p constructed by Fenshi 2 is moved from the second position shown in FIG. 3 to the dotted line position when the plunger 2a is inserted, assuming that the effective cross section of the plunger 21a =, the moving distance is a, then The non-return cardia i 0 on the suction side can suck a fluid having a volume of V = aS into the cylindrical portion 22 (direction of arrow u in FIG. 3). When the plunger 21a is pushed in the opposite direction, the same volume of fluid can be discharged from the cylindrical portion 22 through the check valve on the discharge side (direction of arrow k2 in FIG. 3). At the time of attack, the check valve on the discharge side of the suction action system sphere 12 closes the valve seat 11 to prevent the liquid from flowing backward, and the check valve 10 on the discharge action system and the suction side can also prevent the liquid from flowing backward. In addition, since the plunger pump P is placed with the suction side and the lower discharge side above, when the plunger 21a is at a standstill, the spherical body 12 of the check valve on the suction side and the discharge side due to the presence of gravity is a closed valve. Block 丨 丨 state. In addition, the sealing members 24'26 provide the respective check valves 1G with water-tightness in the casing 20, respectively, to prevent leakage of fluid from the casing 2G. FIG. 4 is a schematic diagram of another embodiment of a check valve according to the present invention. 1600, a ceramic material with a surface roughness Ra $ 〇. ^^ is preferred. In addition, the door seat and the baffle plate may be made of ceramic materials having toughness and abrasion resistance such as dioxane, valve (ZrO2) and the Vickers hardness of Hv = 1,400. ^, The surface roughness of the valve seat close to the spherical body is preferably Ra each 0 疋. , F, the Vickers hardness of the valve seat can also be Hvg1400, which can also be higher than " two: ^ hardness. That is to say, because the valve seat is relative to the spherical body ^ Table :: ‚'5 and the shape of the body with the fluid flow I gradually rotate almost all contact the surface of the valve seat evenly, if the hard body of the valve seat 咼, then The friction between the two can be made to the same degree. / In addition, the valve seat, the spherical body, and the baffle can be made of super-hardened f, respectively, and the surface of the surface can be hardened 2:丨 Outside "In order to achieve the purpose of hardening the surface of the valve seat and the baffle 13: material; the part that is in contact with the spherical body-layer ceramic or cemented carbide connection members can be made of materials such as synthetic resin, such as polyacetal , 2 ^ synthetic resin ^ olycarbonate), polysulfone (Polysulfate (PoWmide)) and other engineering plastics. And synthetic rubber instead of synthetic resin. Connection member material can also be used to support the connection member to maintain the shape of the valve seat structure lock The impact can be absorbed by the component .: # The ball supports and holds the baffle. The baffle: can be absorbed by the connecting member. The impact caused by the opening of the K body, such as one of the valve seat and the baffle, is decomposable with the connecting member if,
\修正\ Correction
同圖所=構造中，用連接構件1 40取代原來支撐之閥門座 11 ’而讓其直接支撐擋板130。 連接構件1 4 0係通過將其内面台階部丨4 〇 c進行精密 機械加工，可壓入並支撐擋板13〇。而且，擋板13〇、連 才^40經連接構件14〇之鑲嵌肋H〇b、 1〇 4 肋n〇C與閥門座110可分解地組裝成一體。 孃耿 如圖5所示，也可將閥門座lu用 ^ 擋板IjO用第2連接構件15支撐。 棕， 第2連接構件15用與連接構件丨41相同之材料製成。捧 = 130和第2連接構件15係經第2連接構件丨5之鑲欲肋二 、、接構件1 41之鑲嵌肋141 b使連接構件1 41和閥門座111可 ^解組裝成一體。而且，第2連接構件15也可用與連接構 件141不同之材料製成，較連接構件141之材料軟或硬都 2 /另外連接構件1 41和第2連接構件1 5之間上下位置位箸 糸顛倒，閥門座111用第2連接構件15支撐，擋板130用 連接構件141支撐也可以。 用 如圖6(A)剖面圖、圖6(B)箭頭γ方向之視圖所示，擋 1之隔離片1 3a、1 3a......也可以不分割開口部ι 3! b， f f 口部131b之徑向突由來設置。這時，可通過將開口部 b之開口面積增大使其對流體之流路阻抗變小。 * 捧還有，如圖7所示，閥門座112和擋板132也可通過在 二，132之鑲嵌肋1326和閥n座112之鑲嵌肋丨丨仏之間裝有 ^大連，構件丨42可分解地組裝成一體。但是，鑲嵌肋 e之同度可比連接構件1 4 2之高度低，在閥門座丨1 2和精 第10頁 五、發明說明（4) Ϊ件的存在閥門座和擋板可容易地分解，從而可 ί ί#交換包括球形體在内i構成構件‘。 盘被遠接播丛接構件支撐擋板時，擋板可通過第2連接構件 閥門座時，閃^之闕門座組裝。而用第2連接構件支撐 裝闕門座可通過第2連接構件與被連接構件支樓 =接構件和第2連接構件為可分解地 話，由於兩者之分解，可簡 起的 内之各構成構件。 ’早也檢查或乂換包括球形體在 〈發明之實施例〉 下面，參照圖面說明發明之實施例。 圖。之縱向斷面圖、圖2係圖1之平面 板13 =件“Γ1』係由閥門座H、球形體12、播 連接構件14被组合^體。且，閥門如和撞板13係通過 2 f:2係由陶竟或超硬合金材料製成之球體。 其上側面與球形體12ί;:處4 =料製成之環狀體，在 與球形體12相同直徑=面…。座面…係具有 面並與球形體12呈線接觸。 ，座面11a也可為錐形遲 連接構件14中％罢女4· Μ ηρ» 14a，該台階部14a與閥門座“且台階部(保持部） 另外，連接構件14係由較球㈣^目=之内徑並呈環狀。 脂或合成橡膠等材料製作。於連接構2座11軟之合成樹 、運接構件14之外周側設有鑲 年 曰 案號8810加77 五、發明說明⑸ 彼助l4b，台階部14a、鑲嵌肋14b分別广^ 13下面之鑲嵌肋13e緊貼，通 封:身門座η、擋板 以下對各構件之構成作詳細說明。 而裒成 稽板1 3係由陶瓷或超硬合 邱’由g放鼾壯夕』 口金材科製成。擋板1 3之上 ：i3b m ί ；rM3a'Ua...…隔成-扇形之開口 # #真：1，Jt 1 π & β隔板部1 3a之内側面限制球形體1 2之 2 f導面？ Ϊ將球形體12沿閥門座11之軸方向引 二相二Ίϊ，引導面i3c、l3c......係具有與移 =面二 並與球形體12直徑相同面朝下 之球面連接。而且，於各隔板片13a' 13a…..·之中央交 部，擒板13之轴上設有孔13d。於擋板13下面，連接構件 14之鑲嵌助14b之内侧設置有鑲嵌肋13e。 擋板13和連接構件η通過鑲嵌肋13e、14b可分解地組 裝_一體，鑲嵌肋13e與連接構件14之間設有一缝隙4，在 缝隙d處可插入工具擴大此縫隙d使擋板1 3與連接構件1 4之 間可簡單地拆開。 如圖3所示’止回閥門1 〇被上下一對同方向地組裝在 由具有柱塞部21、圓筒部22之殼體20的圓筒部22内（圖1、 圖3)’構成水噴射間之橫向裝入用柱塞式泵。 柱塞部21係由圓筒部22於中間處分支而形成。柱塞部 21經未圖示之驅動電源使柱塞2丨&可前後移動地插入。 吸入側（圖3之下側）之止回閥門1 〇係經用螺合於圓筒 部2 2之擠壓構件2 3被固定於圓筒部2 2之環狀台階部2 2 a 上。擠壓構件23之上端外周面接觸部23a與連接構件14之In the structure shown in the figure, the connecting member 1 40 is used to replace the originally supported valve seat 11 ′ and let it directly support the baffle plate 130. The connecting member 140 is precision-machined on the inner stepped portion 4o c to press-fit and support the bezel 13o. Further, the baffle plate 130, the flange 40, and the mounting rib H0b and the rib 4c of the connecting member 1440 are detachably assembled with the valve seat 110 as a whole. As shown in FIG. 5, the valve seat lu may be supported by the second connection member 15 with the baffle IjO. The second connecting member 15 is made of the same material as the connecting member 41. The bracket 130 and the second connecting member 15 are inserted into the rib 2 of the second connecting member 5 and the inlaid rib 141 b of the connecting member 1 41 so that the connecting member 1 41 and the valve seat 111 can be disassembled and integrated. In addition, the second connection member 15 may be made of a material different from that of the connection member 141, which is softer or harder than the material of the connection member 141. 2 / In addition, the upper and lower positions between the connection member 1 41 and the second connection member 15 Upside down, the valve seat 111 may be supported by the second connection member 15, and the shutter 130 may be supported by the connection member 141. As shown in the cross-sectional view of FIG. 6 (A) and the view in the direction of arrow γ in FIG. 6 (B), the spacers 1 3a, 1 3a of the stop 1 may not be divided into the openings ι 3! B, ff The radial projection of the mouth portion 131b is provided. In this case, by increasing the opening area of the opening portion b, the resistance to the flow path of the fluid can be reduced. * Also, as shown in FIG. 7, the valve seat 112 and the baffle plate 132 can also be fitted with ^ Dalian, member 丨 42 between the inlaid rib 1326 of the second and 132 and the inlaid rib 丨 丨 仏 of the valve n seat 112. Removably assembled into one body. However, the same degree of inlay rib e can be lower than the height of the connecting member 142. In the valve seat, the valve seat and the baffle can be easily disassembled. Thereby, the exchange components including spheres can be exchanged. When the disk is supported by the remote-receiving cluster connection member, the baffle can be assembled through the second connection member when the valve seat is flashed. The second connection member can be used to support and install the door seat. The second connection member and the connected member support can be separated. Since the two are decomposed, it can be simplified. Constituting component. "Inspection or replacement includes spheres." Embodiments of Invention "Next, embodiments of the invention will be described with reference to the drawings. Illustration. Fig. 2 is a plan view of the plane plate 13 of Fig. 1. The piece "Γ1" is composed of a valve seat H, a spherical body 12, and a connecting member 14. The valve such as the striker 13 passes through 2 f: 2 is a sphere made of Tao Jing or super-hard alloy material. Its upper side is with a spherical body 12ί ;: 4 = a circular body made of material, at the same diameter as the spherical body 12 = face ... seat surface. ... has a surface and is in line contact with the spherical body 12. The seat surface 11a may also be a% of the tapered late connection member 14 · M ηρ »14a, the step portion 14a and the valve seat" and the step portion (holding In addition, the connecting member 14 is formed in a ring shape from the inner diameter of the ball. Made of grease or synthetic rubber. On the outer periphery of the two connecting structures of 11 soft synthetic trees and transport connection members 14, there are set the year number 8810 plus 77. V. Description of the invention ⑸ 助 14b, the step portion 14a, and the inlaid rib 14b are wide. The inlaid ribs 13e are in close contact with each other, and the structure of each component is described in detail below the body door seat η and the baffle plate.裒 成 Jiban 1 3 is made of ceramics or super-hardened qiu ′ by g fang 鼾 Zhuang Xi ”mouth gold material branch. Above the baffle 1 3: i3b m; rM3a'Ua ... ... partitioned into-sector-shaped openings # # 真 ： 1, Jt 1 π & β partition portion 1 3a The inner side restricts the spherical body 12 2 2 f guide surface? (2) Lead the spherical body 12 in two phases and two directions along the axis of the valve seat 11. The guide surfaces i3c, l3c, ... have a spherical surface connected to the second surface and the same diameter as the spherical body 12 facing downward. Further, a hole 13d is provided on the axis of the pallet 13 at the center intersection of each of the partition pieces 13a '13a .... Below the baffle plate 13, inlay ribs 13e are provided inside the inlaying aid 14b of the connecting member 14. The baffle 13 and the connecting member η are detachably assembled by the inlay ribs 13e, 14b. A gap 4 is provided between the inlay rib 13e and the connecting member 14, and a tool can be inserted at the gap d to expand this gap d to make the baffle 1 3 It can be easily disassembled from the connecting member 14. As shown in FIG. 3, 'the non-return valve 10 is assembled in a pair of up and down in the same direction in the cylindrical portion 22 (FIG. 1, FIG. 3) of the housing 20 having the plunger portion 21 and the cylindrical portion 22' Plunger pump for horizontal installation in water spray booth. The plunger portion 21 is formed by branching the cylindrical portion 22 in the middle. The plunger portion 21 is inserted into the plunger 2 in a forward and backward direction by a driving power source (not shown). The check valve 1 0 on the suction side (lower side in FIG. 3) is fixed to the annular step portion 2 2 a of the cylindrical portion 22 by the pressing member 2 3 screwed to the cylindrical portion 22. The outer peripheral surface contact portion 23a of the upper end of the pressing member 23 and the connecting member 14
示之故舻征认。而且，擠壓構件23還被連接在未圖 々丨l體i、、、，σ源相連接之連接管2 3 b上。 修正The reason is shown. Moreover, the pressing member 23 is also connected to the connecting pipes 2 3 b to which the sigma sources i, ,, and σ are connected. Amend
於圓ft :二Γ ί側(圖3之上側)之止回閥門10係經螺合 構件25被固定於環狀台階部娜上。擠 構下端外周接觸部25a與擋板13之間裝有-密封 連接。於贫ί，擠壓構件25還與排出液體之排岀管25b相 之内二構件25内，隔板13之開。部咖與排出管25b t 相調整使其形成漏斗狀逐減部25c。另外，也可 分別在擠壓構件23、25之螺合處袭用未圖示之密卜封材也料了。 奋始2 ί構成之柱塞式泵p當其插入柱塞2 la從圖3所示之 二^置移至虛線位置時，假設插入柱塞21a之有效截面 =、移動距離為a、則通過吸入侧之止回闕門i〇可將體 積為V = aS之流體吸入圓筒部22内（圖3之箭頭u方向）。而 當插入柱塞21a反方向推進時，通過排出侧之止回閥 可將同體積\’之流體從圓筒部22内排出（圖3之箭頭k2 方向）。攻時，吸入動作係排出側之止回閥門丨〇中球形體 12將閥門座11關閉能阻止液體之倒流，排出動作係、吸入側 之止回閥門1 0同樣也能阻止液體之倒流。 還有，柱塞式泵Ρ由於被放置成吸入側在下排出側在 上，插入柱塞21a處於靜止時，由於重力之存在吸入侧、 排出侧之止回閥門丨〇之球形體12處於封閉閥門座丨丨之狀 態。而且，密封構件24 ' 26使組袈在殼體2〇内各自相應止 回閥門1 G具有密水性’可防止來自殻體2G流體之漏岀。 圖4係本發明有關止回閥門之其它實施例的示意圖。On the circle ft: the two check valves 10 on the upper side (upper side in FIG. 3) are fixed to the annular stepped portion 25 by a screwing member 25. The extruded lower end outer peripheral contact portion 25a and the baffle plate 13 are provided with a hermetic connection. In the poor state, the squeeze member 25 is also inside the second member 25, and the partition plate 13 is opened with respect to the drain pipe 25b for discharging the liquid. The portion coffee is adjusted to the discharge pipe 25b t to form a funnel-shaped progressively decreasing portion 25c. Alternatively, a sealing material (not shown) may be used at the screw joints of the pressing members 23 and 25, respectively. When the plunger pump p constructed by Fenshi 2 is moved from the second position shown in FIG. 3 to the dotted line position when the plunger 2a is inserted, assuming that the effective cross section of the plunger 21a =, the moving distance is a, then The non-return cardia i 0 on the suction side can suck a fluid having a volume of V = aS into the cylindrical portion 22 (direction of arrow u in FIG. 3). When the plunger 21a is pushed in the opposite direction, the same volume of fluid can be discharged from the cylindrical portion 22 through the check valve on the discharge side (direction of arrow k2 in FIG. 3). At the time of attack, the check valve on the discharge side of the suction action system sphere 12 closes the valve seat 11 to prevent the liquid from flowing backward, and the check valve 10 on the discharge action system and the suction side can also prevent the liquid from flowing backward. In addition, since the plunger pump P is placed with the suction side and the lower discharge side above, when the plunger 21a is at a standstill, the spherical body 12 of the check valve on the suction side and the discharge side due to the presence of gravity is a closed valve. Block 丨 丨 state. In addition, the sealing members 24'26 provide the respective check valves 1G with water-tightness in the casing 20, respectively, to prevent leakage of fluid from the casing 2G. FIG. 4 is a schematic diagram of another embodiment of a check valve according to the present invention.
\修正\ Correction
同圖所=構造中，用連接構件1 40取代原來支撐之閥門座 11 ’而讓其直接支撐擋板130。 連接構件1 4 0係通過將其内面台階部丨4 〇 c進行精密 機械加工，可壓入並支撐擋板13〇。而且，擋板13〇、連 才^40經連接構件14〇之鑲嵌肋H〇b、 1〇 4 肋n〇C與閥門座110可分解地組裝成一體。 孃耿 如圖5所示，也可將閥門座lu用 ^ 擋板IjO用第2連接構件15支撐。 棕， 第2連接構件15用與連接構件丨41相同之材料製成。捧 = 130和第2連接構件15係經第2連接構件丨5之鑲欲肋二 、、接構件1 41之鑲嵌肋141 b使連接構件1 41和閥門座111可 ^解組裝成一體。而且，第2連接構件15也可用與連接構 件141不同之材料製成，較連接構件141之材料軟或硬都 2 /另外連接構件1 41和第2連接構件1 5之間上下位置位箸 糸顛倒，閥門座111用第2連接構件15支撐，擋板130用 連接構件141支撐也可以。 用 如圖6(A)剖面圖、圖6(B)箭頭γ方向之視圖所示，擋 1之隔離片1 3a、1 3a......也可以不分割開口部ι 3! b， f f 口部131b之徑向突由來設置。這時，可通過將開口部 b之開口面積增大使其對流體之流路阻抗變小。 * 捧還有，如圖7所示，閥門座112和擋板132也可通過在 二，132之鑲嵌肋1326和閥n座112之鑲嵌肋丨丨仏之間裝有 ^大連，構件丨42可分解地組裝成一體。但是，鑲嵌肋 e之同度可比連接構件1 4 2之高度低，在閥門座丨1 2和精 第10頁 五、發明說明（8) 板132之間形成縫隙d # ^ 6" n^%V\72^ ^ ^ 可經連接構件和第2連接件J擇時(圖4、圖5)， 第2連接構件從而構成一體。牙 可將連接構件插入 有本發明除適用於水喷射間之橫向穿入用^ 體之：: 閥2!和播板組震成- 形體、擋板之材料皙妯= 之係比閥門座、球 將閥門座和擒：=f二經精密地機械加工能使其形成 球體、擔板使用=;成一體所需之形狀，閥門座、 使用質地相备硬且具有良好密封性之材料， ς維持其性能，即時高頻度地動作也容地耐 用性之優點。 只凡问耐 而且，由於連接構件使與其連接之閥門座、擋板及 接構件被可分解地組襞成一體，使維修變得方便。 <圖式簡單說明〉 圖1係全體構造的縱剖面說明圖。 圖2係相當於圖1之箭頭X方向所視的視圖。 圖3係使用狀態說明圖。 圖4係其他實施例之相當於圖1的視圖。In the structure shown in the figure, the connecting member 1 40 is used to replace the originally supported valve seat 11 ′ and let it directly support the baffle plate 130. The connecting member 140 is precision-machined on the inner stepped portion 4o c to press-fit and support the bezel 13o. Further, the baffle plate 130, the flange 40, and the mounting rib H0b and the rib 4c of the connecting member 1440 are detachably assembled with the valve seat 110 as a whole. As shown in FIG. 5, the valve seat lu may be supported by the second connection member 15 with the baffle IjO. The second connecting member 15 is made of the same material as the connecting member 41. The bracket 130 and the second connecting member 15 are inserted into the rib 2 of the second connecting member 5 and the inlaid rib 141 b of the connecting member 1 41 so that the connecting member 1 41 and the valve seat 111 can be disassembled and integrated. In addition, the second connection member 15 may be made of a material different from that of the connection member 141, which is softer or harder than the material of the connection member 141. 2 / In addition, the upper and lower positions between the connection member 1 41 and the second connection member 15 Upside down, the valve seat 111 may be supported by the second connection member 15, and the shutter 130 may be supported by the connection member 141. As shown in the cross-sectional view of FIG. 6 (A) and the view in the direction of arrow γ in FIG. 6 (B), the spacers 1 3a, 1 3a of the stop 1 may not be divided into the openings ι 3! B, ff The radial projection of the mouth portion 131b is provided. In this case, by increasing the opening area of the opening portion b, the resistance to the flow path of the fluid can be reduced. * Also, as shown in FIG. 7, the valve seat 112 and the baffle plate 132 can also be fitted with ^ Dalian, member 丨 42 between the inlaid rib 1326 of the second and 132 and the inlaid rib 丨 丨 仏 of the valve n seat 112. Removably assembled into one body. However, the same degree of inlay rib e may be lower than the height of the connecting member 142, forming a gap d between the valve seat 丨 12 and the precise page Ⅴ. (8) plate 132 d # ^ 6 " n ^% V \ 72 ^ ^ ^ The timing can be selected via the connecting member and the second connecting member J (FIG. 4, FIG. 5), and the second connecting member can be integrated. The connecting member can be inserted into the tooth with the present invention except for the horizontal penetration for water jetting. ^ Body :: Valve 2! And the seeding plate group are shocked-the shape and material of the baffle are equal to the ratio of the valve seat, The ball and the valve seat are precisely machined to make it into a ball and a stretcher. The valve seat is made into a desired shape. The valve seat is made of hard and tightly sealed materials. Σ Maintaining its performance, it also has the advantages of durability and durability when operating at high frequencies in real time. Just ask for resistance. Furthermore, since the connecting member makes the valve seat, baffle and connecting member connected to it detachably integrated, it facilitates maintenance. < Brief Description of Drawings > Fig. 1 is a longitudinal sectional explanatory view of the entire structure. FIG. 2 is a view corresponding to the arrow X direction of FIG. 1. FIG. 3 is an explanatory diagram of a use state. FIG. 4 is a view corresponding to FIG. 1 of another embodiment.
醜ugly
第11頁 五、發明說明（9) 圖5係其他實施例之相當於圖1的視圖。 圖6係其他實施例之構造說明圖。 圖7係係其他實施例之相當於圖1的視圖。 〈符號說明〉 L 移動量； 10 止回閥門； 11 閥門座； 12 球體； 13 擋板； 13b 開口部； 13c引導部； 14 連接構件； 15 第2連接構件。Page 11 V. Description of the invention (9) FIG. 5 is a view corresponding to FIG. 1 of another embodiment. FIG. 6 is a structural explanatory diagram of another embodiment. FIG. 7 is a view corresponding to FIG. 1 of another embodiment. 〈Explanation of symbols〉 L moving amount; 10 non-return valve; 11 valve seat; 12 sphere; 13 baffle plate; 13b opening portion; 13c guide portion; 14 connecting member; 15 second connecting member.
第12頁Page 12
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10170108A JP2000002350A (en) | 1998-06-17 | 1998-06-17 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW381153B true TW381153B (en) | 2000-02-01 |
Family
ID=15898796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW088103077A TW381153B (en) | 1998-06-17 | 1999-03-01 | Check valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000002350A (en) |
| KR (1) | KR100400979B1 (en) |
| TW (1) | TW381153B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001294483A (en) | 2000-04-12 | 2001-10-23 | Ngk Spark Plug Co Ltd | Zirconia containing ceramic ball, method of producing the same, ceramic ball bearing and check valve |
| JP2002039293A (en) * | 2000-07-21 | 2002-02-06 | Ntn Corp | Hydraulic chain tensioner |
| JP4066672B2 (en) * | 2002-02-22 | 2008-03-26 | 三菱自動車工業株式会社 | Fluid control valve and release agent supply system using the same |
| JP2004144169A (en) * | 2002-10-23 | 2004-05-20 | Tsudakoma Corp | Check valve |
| US7654283B2 (en) | 2003-10-21 | 2010-02-02 | Seiko Epson Corporation | Check valve and pump including check valve |
| JP2006132556A (en) * | 2004-11-02 | 2006-05-25 | Bay City Service Co Ltd | Manifold type valve device |
| JP2006258191A (en) * | 2005-03-17 | 2006-09-28 | Pacific Ind Co Ltd | Valve, and method for manufacturing valve |
| FI118055B (en) * | 2005-11-23 | 2007-06-15 | Waertsilae Finland Oy | Piston engine injection pump |
| DE102007012967B4 (en) * | 2007-03-14 | 2009-01-08 | Hydraulik-Ring Gmbh | Valve, in particular cartridge valve, with integrated non-return valve |
| US9346075B2 (en) * | 2011-08-26 | 2016-05-24 | Nordson Corporation | Modular jetting devices |
| JP2014214402A (en) * | 2013-04-26 | 2014-11-17 | 株式会社豊田自動織機 | Weft inserting pump of water jet loom |
| JP2015075049A (en) * | 2013-10-10 | 2015-04-20 | 株式会社デンソー | High-pressure pump |
| JP6784721B2 (en) * | 2018-06-18 | 2020-11-11 | 株式会社ヤマダコーポレーション | Ball check valve and diaphragm pump |
| JP7322820B2 (en) * | 2020-06-10 | 2023-08-08 | 株式会社デンソー | valve device |
| JP7128864B2 (en) * | 2020-07-20 | 2022-08-31 | 株式会社ヤマダコーポレーション | Ball check valve and diaphragm pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2595759Y2 (en) * | 1993-11-18 | 1999-06-02 | 日機装株式会社 | Check valve |
-
1998
- 1998-06-17 JP JP10170108A patent/JP2000002350A/en active Pending
-
1999
- 1999-02-26 KR KR10-1999-0006582A patent/KR100400979B1/en not_active IP Right Cessation
- 1999-03-01 TW TW088103077A patent/TW381153B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000002350A (en) | 2000-01-07 |
| KR20000005603A (en) | 2000-01-25 |
| KR100400979B1 (en) | 2003-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW381153B (en) | Check valve | |
| ATE409082T1 (en) | SPRAY VALVE ARRANGEMENT FOR PRE-RINSE UNITS. | |
| US5687952A (en) | Water faucet poppet valve | |
| JPS62501435A (en) | Diverter | |
| EP1688691A3 (en) | Steam injection heater with dual-sealing assembly | |
| DE602006009525D1 (en) | DISPENSING NOZZLE AND A BUCKET CONTAINING A SPILLAGE NOZZLE | |
| DE3578448D1 (en) | CHECK VALVE. | |
| DK248588A (en) | BALL VALVE DUTY | |
| JPS6344996B2 (en) | ||
| BRPI0412113A (en) | nozzle arrangement | |
| PT993314E (en) | SYRINGE AND RESPECTIVE CAPSULE | |
| EP0386183A1 (en) | One way flow valve | |
| DE50009950D1 (en) | Backflow | |
| DK1588083T3 (en) | Reversible lock | |
| JPH09242904A (en) | Reverse flow preventing device | |
| DK447483A (en) | PRECISION VALVE COLLECTION | |
| ATE187531T1 (en) | WATER VALVE TOP PART WITH CERAMIC SEALING DISKS IN A HOUSING | |
| KR910014640A (en) | Thick wall thin metal pipe | |
| HU0300749D0 (en) | Seal for slide valves | |
| TW201839298A (en) | Sealing system of a device for allowing the passage of a medium, in particular in the high pressure range | |
| DE60100174D1 (en) | Connection and sealing device with external piping of a container for cryogenic liquid | |
| DE50300563D1 (en) | Solenoid valve | |
| DE59605743D1 (en) | Hydraulic damping valve | |
| US256873A (en) | Ulrich bohren | |
| PL438977A1 (en) | Ball check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent |