1269007 玖、發明說明： [發明所屬之技術領域] 毛月’係關於具備防逆流機能之止回閥 [先前技術] 白知止回閥之閥體 以陶瓷或超石j 入、 ▼ -，i叫 閥座、及止動仵 5金為材料來形成（例如，參閱專利文獻υ 專利文獻ι>日本專利特開2〇〇〇_235〇號公 [發明内容]1269007 玖, invention description: [Technical field of invention] Maoyue is a check valve with anti-backflow function [Prior Art] The valve body of Baizhi check valve is made of ceramic or super stone j, ▼ -, i The valve seat and the stopper 仵5 gold are formed as a material (for example, refer to the patent document 专利 Patent Document ι> Japanese Patent Laid-Open No. 2 〇 235 公 公 [Abstract]
眾而 i述構件之材料若使用陶瓷或超硬合金等… 材料(加熱粉體來成形之材料)時，高速且高頻，声之；: =此間反覆發生，導致此等構件磨損、消耗，而產：; 或裂縫。結果’該碎片塞住裝有止回閥之泵（參閱圖^ θ 4)之壓叙或切換閥（參閱圖3)的滑動部，因 成止回閥之損壞，亦造成其他構件損壞。 決問顳之技術丰 ▲本發明’係鑒於上述實情而為，其目的在於提供一種 能長期維持防逆流機能、耐久性高、且低成本之止回闕。 為了要解決上述問題，本發明之止回閥，係具備：闕 體，在管路之-部分所形成之限制空間設置成可動狀態； 閥座’構成限制空間之—端’並具備藉由閥體之密合而封 閉之閥口；及止動件’與閥座一起構成限制空間，用以在 閥口打開時限制閥體之可動領域；且將閥體之接觸部之硬 度，設定為比閥座及止動件之接觸部之硬度為低。 1269007 又，所謂接觸部，#名 猶。^μ '係在各構件間產生接觸之部分的總 因此，边各構件，可以 材料構成，至少在各構件二#科構成，亦可以複數個 接觸部能滿足該條件即可。 [實施方式] 以下，依照圖式却日日士& W兒月本發明止回閥之實施形態。 本發明實施形態之μ ^ 、 回閥，係如圖1所示當作喷水式 、、哉機用之止回閥7所設計去 、 冲者，如圖4設置於泵内，使用於 如圖3所示之產生噴水之管路卜 °亥止回閱由下列構件構成：球狀間體3，在管路i之 一部分所形成的限制空門 广 曰(止回閥7之内空部）設置成可 動狀恶，閥座5，播士阳屯丨山 ，m 構成限制空間2之-端，並具備藉由閥 體3之密合而封閉 1之囫形閥口 4 ;止動件6，係與閥座5 一起構成限制空問9 4致^ 之構件，並具備球面狀内面，用以當 β 口 4打開時限制間體3之可動領域；及連結構件8，用 以連結閥座5與止動件6。 /回閥7藉由從閥座5之閥口 4外部流入之流體（在 本例係水)壓力，推擠閥體3而打開閥口 4,來確保裝有止 〇闕7之官路1之流路。並且，當流體欲從限制空間2之 卩机出閥口 4外時’如圖1 (Α)所示，球狀閥體3便被推 Η座5之間口 4而封閉管路1之流路。當閥體3被推擠 至限制空間2內日卑，丄面， ^ 如圖1(B)所示，閥體3便收納於形成 在止動件内壁之球面狀凹部，閥冑3固定於避開設於止動 牛之通路9的位置，故能確保安定之流體流通。 & -亥例’將该各構件以單一之成形品來構成，將閥體 1269007 3之接觸部之硬度，設定為比閥I 5及止動件6之接觸部 之更度為低。以下，比較滿足該條件之樣品與不滿足之樣 品來考察。 表1顯不止動件耐久試驗結果，係以淬火不銹鋼球 (HV830)為閥體3，使用比閥體3硬度高之任意閥座5，製 ^由各種材料構成之止動件6的樣品，比較各耐用期 ，石斤彳于之、、、°果。在具備不銹鋼製止動件（具有比閥體3還小 又）之樣1或具備淬火不銹鋼止動件之樣品2，分別 僅有5個月盥7J 月興7個月之耐用期間，相對於.此，在且 ，氧，呂、超硬合金Nl及超硬合金co的止動；： 3 。樣°〇6(具超過閥體3之硬度），均有超過2年之耐用期 立動件耐久試驗結果 淬火不銹鋼球之壽命If materials such as ceramics or super-hard alloys are used, materials such as ceramics or super-hard alloys (heating powders to form materials), high-speed and high-frequency, sound;; = repeated occurrences, causing wear and tear of these components, And produce:; or cracks. As a result, the debris plugs the sliding portion of the pump equipped with the check valve (see Fig. θ 4) or the sliding portion of the switching valve (see Fig. 3), which causes damage to other components due to damage of the check valve. The present invention has been made in view of the above circumstances, and an object thereof is to provide a check that can maintain a backflow prevention function for a long period of time, has high durability, and is low in cost. In order to solve the above problems, the check valve of the present invention has a body, and a restriction space formed in a portion of the pipe is disposed in a movable state; the valve seat 'constitutes a space-end end' and is provided with a valve a closed and closed valve port; and the stopper 'together with the valve seat to form a restriction space for restricting the movable area of the valve body when the valve port is opened; and setting the hardness of the contact portion of the valve body to a ratio The contact portion of the valve seat and the stopper has a low hardness. 1269007 Also, the so-called contact part, #名犹. ^μ ' is the total part of the contact between the members. Therefore, each member can be made of a material, at least in each member, or a plurality of contact portions can satisfy the condition. [Embodiment] Hereinafter, an embodiment of a check valve of the present invention will be described in accordance with the drawings. The μ ^ and the check valve according to the embodiment of the present invention are designed and used as the water spray type and the check valve 7 for the machine as shown in FIG. 1 , and are installed in the pump as shown in FIG. The pipe for generating water spray shown in Fig. 3 is composed of the following members: a spherical body 3, and a restricted empty door formed in one part of the pipe i (the inner space of the check valve 7) It is set to be movable, the valve seat 5, the singer Yangshuo Mountain, m constitutes the end of the restricted space 2, and has a 阀-shaped valve port 4 which is closed by the close contact of the valve body 3; the stopper 6 And the valve seat 5 together constitute a member for limiting the space, and has a spherical inner surface for restricting the movable area of the partition 3 when the β port 4 is opened; and the connecting member 8 for connecting the valve seat 5 and the stopper 6. The return valve 7 opens the valve port 4 by pushing the valve body 3 from the pressure of the fluid (in this example, water) flowing from the outside of the valve port 4 of the valve seat 5 to ensure the official road 1 with the stop 7 The flow path. Moreover, when the fluid is to be out of the valve outlet 4 of the restriction space 2, as shown in Fig. 1 (Α), the spherical valve body 3 is pushed by the port 4 between the squats 5 to close the flow path of the pipe 1. . When the valve body 3 is pushed into the confined space 2, the surface is cleaned, as shown in Fig. 1(B), the valve body 3 is housed in a spherical recess formed in the inner wall of the stopper, and the valve block 3 is fixed to By avoiding the position of the passage 9 of the stop cattle, it is possible to ensure the circulation of the stable fluid. & - Hai Example The members are formed of a single molded article, and the hardness of the contact portion of the valve body 1269007 3 is set to be lower than the contact portion between the valve I 5 and the stopper 6. Hereinafter, samples satisfying the conditions and samples not satisfying are examined. Table 1 shows the endurance test results of the stoppers. The quenched stainless steel ball (HV830) is used as the valve body 3, and any valve seat 5 having a higher hardness than the valve body 3 is used to prepare a sample of the stopper 6 made of various materials. Comparing the durability period, the stone is used for it, and the fruit is. In the case of a stainless steel stopper (having a smaller size than the valve body 3) or a sample 2 having a quenched stainless steel stopper, each has a durability period of only 5 months, 7 months, and 7 months, respectively. This, in addition, oxygen, Lu, super hard alloy Nl and super hard alloy co stop;: 3 . The sample °〇6 (with the hardness of the valve body 3) has a durability period of more than 2 years. The durability test result of the vertical member The life of the quenched stainless steel ball
材質 试驗條件· " ^ ' •轉速80〇rpm，使用水量7cc/投緯，水 85kgf/cm2 閥體：、;卒火I μ 卞人不銹鋼球（HV830) 試驗期間：2年 表2顯示閥座耐久試驗結果，係以相同之淬火不銹 1269007 球（HV83〇)為閥體3，使用比π> ，製造具備由氧化# 任意止動件6 擗嬙欠Λ * I氧化鋁構成之閥座5的樣品，比較 根據各磨耗狀離之+ 孕乂 ,,.Μ ^間所得之結果。具備氧化鍅、氧 化I呂所構成之閥座（ ^ U超過閥體3之硬度）的樣品，均有 過2年之耐用期間。 °Material test conditions · " ^ ' • Speed 80 rpm, use water 7cc / weft, water 85kgf / cm2 valve body:,; fire I μ 卞人 stainless steel ball (HV830) Test period: 2 years Table 2 shows As a result of the durability test of the valve seat, the same quenching stainless steel 1269007 ball (HV83〇) was used as the valve body 3, and a valve composed of an oxidation # arbitrary stopper 6 擗嫱 Λ * I alumina was manufactured using a ratio π > The sample of the seat 5 is compared with the results obtained from the respective wear and tear, + pregnancy, and . Samples with a seat made of yttria and oxidized Ilu (^ U exceeding the hardness of the valve body 3) have a durability period of 2 years. °
[表2] -----Μ座财久試驗結果 材質 硬度 淬火不銹鋼球之磨耗 1 ——-—_ ------- _ HV1400 2年OK HV2000 2年OK 式驗條件·轉速800rPm，使用水量7cc/投緯，水壓 85kgf/cm2 閥體··淬火不銹鋼球（HV83〇) 減驗期間：2年 從以上之έ士 s 心…果，能確認：在以淬火不銹鋼球（HV83〇) 為閥體3之彳杳犯 ^ ^㈡^，止動件之材質若使用陶瓷或超硬合金則 月匕獲传比較長之耐用期Μ，也能4認：藉由使用陶竟作為 閥座之材料’幾乎不被空蝕。又，在該止動件耐久試驗及 間座耐久4驗’都是在投緯狀態變為異常之時候（使用效率 月.、、、員下降’織物之異常增加之狀態）結束試驗，當作已達到 哥命。 表3顯不磨耗試驗結果，係以淬火不銹鋼球（HV830) 與Ρ〇Μ樹脂球為閥體3，使用比閥體3硬度為高之任意閥 < 動件6 ’比較各種材料所構成之止動件6或閥座 1269007 5之磨耗狀況所得之結果。在該試驗，淬火不銹鋼球、 POM樹脂球雖均會磨耗，但是沒有發現碎片或裂縫等異常 。又，試驗環境，係試驗期間為90天，織機之轉速為 2000rpm，，在織機之轉速1200rpm下操作2年。 [表3] 閥構件 材質 淬火不銹鋼球之狀態 POM樹脂球之狀態 1 送出側止動件 氧化锆 無異常 無異常 2 送出側止動件 超硬合金 無異常 無異常 3 送出側閥座 氧化鍅 無異常 無異常 4 吸入側止動件 氧化锆 無異常 無異常 5 吸入側止動件 超硬合金 無異常 無異常 6 吸入側閥座 氧化锆 無異常 無異常 *試驗條件：轉速2000rpm，使用水量 6cc/投緯，水壓 200kgf/cm2 閥體：淬火不銹鋼球（HV830)、POM樹脂球 試驗期間：90天（做出轉速1200rpm環境下之相當於2年 之條件） 除上述以球為閥體3而以線接觸封閉閥口 4之止回閥 以外，亦有構成如圖2以將平板狀（在圖2係圓盤狀）閥體 3裝填於限制空間2内的面接觸封閉閥口 4之止回閥的情 形。此情形之閥體3，在其周緣部設置貫穿表裏之通路10 ，藉由環狀閥座5之内面密合或離開於閥體3之背面來開 關通路10。在閥體3被推擠到限制空間2内時，閥體3之 背面便從閥座5之内面離開，表面密合於止動件6之内面 ，而獲得閥體3之位置固定，故經過閥座5之閥口 4、閥 l269〇〇7 體3之背面與閥座5之内面的間隙、閥體3之通路1 〇，止 動件6之通路11來確保安定之流體之流通。 由以上之結果能確認：只要將閥體之硬度，設定為比 閥座或止動件之硬度為低，便可將閥座以陶瓷形成，對止 動件’亦可以陶瓷或超硬合金形成，對閥體，亦可以不銹 鋼或樹脂形成。又，亦能確認：亦可以使用以連結止動件 與閥座之連結構件之硬度，比閥座或止動件為低。又，在 本例雖將口亥各構件以單一之成型品構成，但是只要在各構 牛之接觸閥體之硬度係比閥座或止動件之硬度為低，各 構件之非接觸部亦可使用與接觸部不同之材料。例如在間 :或動件亦可將接觸部以陶究形成，將非接觸部以金屬 形成，亦可將閥體之接觸部以不錄鋼形成，將非接觸部以 其他金屬形成。 座或==明之止回閥，將閥體之硬度設定為比閥 =…在高速且高頻繁度產生之撞 保持著平滑之形貼愈如 下子大大知傷，而 耗所引起之裂縫或碎片，尾4止動件之磨 ^ 千巧月匕將其他構件之密合性 高'…結果能長期維持防逆流機能，使止回間之耐久提 磨耗 受更換裝填於限制空間之閥 長止回閥全體之耐用期 更犯進一步延 十访Μ 了用期間。並且，構成為不容 或卒片，亦能防止對裝有止回 縫 W穉成零件造成二 1269007 次損壞。 【圖式簡單說明】 (一）圖式部分 圖1(A)(B)，係表示本發明之止回闕之一例的說明圖 〇 圖2(A)(B) ’係表示本發明之止㈤闕之一例的w兒月圖 〇 圖3 ’係表示產生喷水之管路之一例的说明圖 圖4 ’係表示供水泵之止回閥之使用狀況之'例的說 明圖。 1 2 3 4 5 6 7 8 (一）元件代表符號 管路 限制空間 閥體 閥口 閥座 止動件 止回閥 連結構件[Table 2] ----- Μ座财久试验Results Material hardness Hardened stainless steel ball wear 1 ——-——_ ------- _ HV1400 2 years OK HV2000 2 years OK Test condition · Speed 800rPm , the use of the amount of water 7cc / weft, water pressure 85kgf / cm2 valve body · · quenched stainless steel ball (HV83 〇) During the inspection period: 2 years from above the gentleman s heart ... fruit, can be confirmed: in the quenched stainless steel ball (HV83 〇) For the valve body 3, ^ ^ (2) ^, if the material of the stopper is made of ceramic or super-hard alloy, the moon will be transmitted for a longer period of durability, and it can also be recognized: by using Tao Jing as The material of the valve seat is hardly cavitation. In addition, in the case of the endurance test of the stopper and the endurance test of the seat, the test is terminated when the weft insertion state becomes abnormal (the use efficiency is monthly, and the member is lowered and the fabric is abnormally increased). Has reached the fate. Table 3 shows the results of the non-abrasive test. The quenched stainless steel ball (HV830) and the resin ball are used as the valve body 3, and any valve having a higher hardness than the valve body 3 is used. The result of the wear condition of the stopper 6 or the valve seat 1269007 5. In this test, both the quenched stainless steel ball and the POM resin ball were worn, but no abnormalities such as chips or cracks were observed. Further, the test environment was 90 days during the test, the rpm of the loom was 2000 rpm, and the woven machine was operated at 1200 rpm for 2 years. [Table 3] Valve member material quenched stainless steel ball state POM resin ball state 1 Send-side stopper zirconia no abnormality no abnormality 2 Feed-side stopper superhard alloy no abnormality no abnormality 3 Delivery side seat oxidized 鍅Abnormal no abnormality 4 Suction side stopper zirconia no abnormality no abnormality 5 Suction side stopper superhard alloy no abnormality no abnormality 6 Suction side seat zirconia no abnormality no abnormality * Test conditions: rotation speed 2000 rpm, use water amount 6cc / Weft insertion, water pressure 200kgf/cm2 Body: quenched stainless steel ball (HV830), POM resin ball test period: 90 days (the equivalent of 2 years under the condition of 1200 rpm) except the ball is the valve body 3 In addition to the check valve that closes the valve port 4 by wire contact, there is also a configuration in which the flat surface (in the form of a disk in FIG. 2) valve body 3 is filled in the restriction space 2 to close the valve port 4 as shown in FIG. The situation of the return valve. In this case, the valve body 3 is provided with a passage 10 penetrating through the front surface of the valve body 3, and the passage 10 is opened by the inner surface of the annular valve seat 5 being adhered or separated from the back surface of the valve body 3. When the valve body 3 is pushed into the restriction space 2, the back surface of the valve body 3 is separated from the inner surface of the valve seat 5, and the surface is in close contact with the inner surface of the stopper 6, so that the position of the valve body 3 is fixed, so that The valve port 4 of the valve seat 5, the gap between the back surface of the valve body 3 and the inner surface of the valve seat 5, the passage 1 of the valve body 3, and the passage 11 of the stopper 6 ensure the circulation of the stable fluid. From the above results, it can be confirmed that the valve seat can be formed of ceramics by setting the hardness of the valve body to be lower than the hardness of the valve seat or the stopper, and the stopper can also be formed of ceramic or super-hard alloy. For the valve body, it can also be formed of stainless steel or resin. Further, it has been confirmed that the hardness of the connecting member that connects the stopper to the valve seat can be used, which is lower than the valve seat or the stopper. Further, in this example, each member of the mouth is formed of a single molded product, but the hardness of the contact valve body of each of the cows is lower than the hardness of the valve seat or the stopper, and the non-contact portion of each member is also A material different from the contact portion can be used. For example, in the case of: or the movable member, the contact portion may be formed by ceramics, the non-contact portion may be formed of metal, or the contact portion of the valve body may be formed by non-recording steel, and the non-contact portion may be formed of other metal. Block or == Ming check valve, the hardness of the valve body is set to be higher than the valve = ... in the high speed and high frequency of the collision to maintain a smooth shape, the following is greatly known, and the crack or debris caused by the consumption The grinding of the tail 4 stoppers ^ The high-precision of the other components is high... The result is that the anti-reverse flow function can be maintained for a long period of time, so that the durable wear of the check-back is replaced by the valve length of the replacement space. The durability period of the whole valve was further extended. Moreover, it can be prevented from being damaged or smashed, and it can prevent two 1269007 damages caused by the W-shaped parts with the check seam. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1(A)(B) is an explanatory view showing an example of the checkback of the present invention. FIG. 2(A)(B) 'is showing the present invention. (5) Illustrated diagram of an example of a flow of a water supply pump. FIG. 4 is an explanatory view showing an example of a use condition of a check valve of a water supply pump. 1 2 3 4 5 6 7 8 (1) Symbol of the component Pipeline Restricted space Valve body Valve port Seat Stopper Check valve Connecting member