200829340 九、發明說明： £發明所屬之技術領域】 本發明「可防止水砂逆流之切割用超高壓流體喷射 結構」，涉及一種以超高壓流體作為切割方法之技術，特 別係指喷射裝置内喷嘴座結構，具有破壞負麼屢力之技 術創新者。 【先前技術】 鲁 超高壓流體切割技術，又被稱為水刀切割技術，係 為一種強而有力的切割工藝，目前已在工業上被廣泛的 應用，且有不斷的技術提升。其主要的原理是：當水被 加壓至極高㈣力，並且由特製之噴嘴上極小的開孔通 過，此時便會產生每秒近千公尺的水射流，當少量的砂 被加入水射流中並與其混合時，所產生的沙水射流可切 害各種材料，例如金屬、石材等，其具有切割光滑平整、 不產生粉塵與幾乎不產生熱量等優點。 • 首請參閱第一圖所示，該種習知的超高壓流體噴射 結構中，設置有一流體噴射裝置i，其包括有鎖合體u 與本體12。該鎖合體n内部設置腔膛空間lu，該腔膛 空間111頂部可用以與本體12螺鎖組合，該腔膛空間 並/、各置空間112連通，鎖合體11側邊斜設有斜 插管113,該容置空間112延伸至斜插管113内部交接 處形成有混砂室116，砂粒可經由斜插管113進入混砂 室116，使沙粒與流體混合，混砂室116再銜接一噴射 《體114噴射營體114末端處係為喷射口 ία。另今本 5 200829340 體12 -端係與增麼裝置(圖中未示)連結，又 112中組置有嘖嘴座？ a 谷置1間 另Μ產2。别述鎖合體u之容 “則，設置有-穿孔m ’該穿孔！ 水來檢視喷嘴座2是否定位至正確位置;若=:2 放置不當或歪斜時，由本體I 2娃、隹 、 驴领合P ^進入腔腔空間ill的流 體便會由牙孔117流出；反 义班 右1哭厘2定位至正確 立置’由本體12端進入腔腊允p弓 嗆打" 运入腔膛工間111的流體完全會通過 贺鳴座2並進入至混砂室丨丨6 嘴射口 115射出。 取後形成細小水柱後由 習知噴嘴座2的結構，請配合第一圖與第二圖所示 :其包括一位於喷嘴座2頂部中央的噴嘴容置槽Η，該 育嘴容置槽21係設於環狀斜面22中央形成凹陷狀，喷 嘴容置槽21可提供噴嘴（圖中未示）嵌置其間；而該喷嘴 座2之下方設有一底部環面23，該底部環面23與鎖合 體U内部緊密貼合。由於高壓水流於開啟後關閉時，會 在混砂室116處產生負壓現象，而造成水砂的逆流，該 疋流的水砂將會嚴重造成噴嘴結構的損傷及破壞，如此 不但影響後續的切割品質，也降低了噴嘴的壽命。 有鑑於此’發明人等基於自身專業知識與長期以來 的研發經驗，就習知之缺失進行研創，期能藉本案之提 出’俾改進現有缺點，期使該種產品能臻致完善、 工 與實用。 【發明内容】 本發明「可防止水砂逆流之切割用超高壓流體噴射 6 200829340 結構」，其主要目的在於：破壞高壓水流在開啟後關閉時 - 所產生之負璧，使水砂無法產生逆流現象，俾徹底解決 負壓造成水砂逆流而影響噴嘴壽命的主因。 义為達上述目的，本案之手段在於··將該負壓於產生 則，即透過壓力平衡技術’使負壓無法產生，以獲致防 止水砂逆流之目的。 上述手段具體的實現内容為：於喷嘴座之底部環面 上加工製作有若干凹槽，該凹槽可減少底部環面與鎖合 _ 體内部的接觸面積，使底部環面與鎖合體間之接觸貼合 面上f生若干孔隙，藉由該孔隙之形成，原本為阻隔關 :的容置空間及混砂室將’形成連通關係，配合既有的 牙孔 了使因南壓水流在開啟後關閉時所即將產生之負 壓，因容置空間、混砂室與穿孔的氣壓平衡作用而使該 負壓於未形成前即被破壞，如此，即可避免負壓的產生， 進而阻止水砂逆流的現象，進而達到有效延長噴嘴壽命 之目的。 _ 岫述手段，除可藉由在喷嘴座之底部環面上加工製 作有若干凹槽來實施外，亦可將凹槽實施成平面，或任 何可供氣壓通過之結構來實施。 【實施方式】 兹謹就本發明「可防止水砂逆流之切割用超高壓流 體噴射結構」其詳細内容，及所能產生的功效，配合圖 式’舉一本案之較佳實施例說明如下。 首請參閱第三圖、第四圖與第五圖所示，本案「可 7 200829340 防止水砂逆流之切用 噴嘴座3 ’其於座體3 〇頂Π ζ噴,結構」’包括有- 該喷嘴容置槽有一喷嘴容置槽32, 於座體3。之下部形成；：孔34與穿孔35;而 Μ環邊可視需要”古 _面打，另於環狀斜面 底㈣面7 伸環體36，本案特徵在於：該 底…37上設有適當數量的凹槽33。 内广2合第六圖，當嗔嘴座3裝設於容置空間η2 由;^宏環面37會與鎖合體11之内環面貼合，但 一 之底部環面37上設置有若干凹肖33,使原本 : 的貼合面之間產生若干孔隙（即凹槽33處）， 隙使得混砂室116與容置空間112之氣壓可流通， 置空間112側邊設置之穿孔m，使流體嗅射 衣置1内部壓力得以與外界之大氣壓力平衡丨當高壓水 流在開啟後關閉時所即將產生之負壓，將會因容置空間 『此7至11 6與牙孔11 7的氣壓平衡作用，致使該負 壓於未形成W即被破壞’藉此’阻止負壓的形成後，可 避免水砂逆流現象，理當可防止噴嘴被損壞，進而延長 喷嘴或噴嘴座3之壽命。 岫述凹槽33之數量，基於氣壓對流之需要，以兩個 以上為佳’可採等距或不等距關係設置；又凹槽3 3得改 以平面實施之。 請參閱第七圖所示，係為本案噴嘴座4之另一實施 例，其相較於前一實施例的差別，在於未設有第三圖的 延伸環體36。 200829340 产體：射^ 可防止水砂逆流之切割用超高壓 射結構」，巧妙運㈣力平衡m以避以 内ΐΐ p能獲致維護設備與延長壽命之功效。其技術 得以利用’二:！1Γ件。本案在產業上確實 八四^ 冒見於刊物或公開使用，且非為 =在/之技術。再者，本案有效解決先前技術中長 題並達成相时㈣與消㈣長期的需求，200829340 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an ultrahigh pressure fluid jetting structure for preventing backflow of water sand, and relates to a technique of using an ultrahigh pressure fluid as a cutting method, in particular, a nozzle in an injection device. The seat structure has the technical innovator who destroys the negative force. [Prior Art] Lu's ultra-high pressure fluid cutting technology, also known as waterjet cutting technology, is a powerful cutting process that has been widely used in industry and has continuous technological advancement. The main principle is that when the water is pressurized to a very high (four) force and passed through a very small opening in a specially designed nozzle, a water jet of nearly a thousand meters per second is produced, when a small amount of sand is added to the water. When mixed in the jet, the generated sand water jet can damage various materials, such as metal, stone, etc., which has the advantages of smooth and flat cutting, no dust generation and almost no heat generation. • Referring first to the first embodiment, in a conventional ultra-high pressure fluid ejection structure, a fluid ejection device i is provided which includes a locking body u and a body 12. The locking body n is internally provided with a cavity space lu, and the top of the cavity space 111 can be used for screwing with the body 12, and the cavity space and/or the space 112 are connected, and the side of the locking body 11 is obliquely provided with an oblique cannula 113, the accommodating space 112 extends to the interior of the oblique cannula 113 to form a sand mixing chamber 116. The sand particles can enter the sand mixing chamber 116 via the oblique cannula 113, so that the sand particles are mixed with the fluid, and the sand mixing chamber 116 is connected again. The jet "body 114 is formed at the end of the jet body 114 as an ejection port ία. In addition, this article 5 200829340 body 12 - end system is connected with the device (not shown), and the 112 group is equipped with a mouthpiece holder? a Valley 1 set Another 2 production. Let's talk about the fit of the lock u. "Yes, set the perforation m ' the perforation! Water to check whether the nozzle holder 2 is positioned to the correct position; if =: 2 is placed improperly or skewed, by the body I 2 baby, 隹, 驴The fluid that leads into the cavity ill will flow out of the cavity 117; the anti-sense class 1 is cried and 2 is positioned to the correct position 'from the end of the body 12 into the cavity, and the p-bow is beaten " The fluid in the labor chamber 111 will completely pass through the consonant 2 and enter the mixing chamber 丨丨6 nozzle injection port 115. After the fine water column is formed, the structure of the nozzle holder 2 is known, please cooperate with the first figure and the first As shown in FIG. 2, it includes a nozzle accommodating groove at the center of the top of the nozzle holder 2, and the nipple accommodating groove 21 is formed in a concave shape at the center of the annular slanting surface 22, and the nozzle accommodating groove 21 can provide a nozzle (Fig. The bottom of the nozzle holder 2 is provided with a bottom annulus 23 which is in close contact with the inside of the lock body U. Since the high-pressure water flow is closed after being opened, it will be in the mixing chamber. Negative pressure occurs at 116, causing backflow of water sand, which will seriously cause spray The damage and damage of the structure not only affect the subsequent cutting quality, but also reduce the life of the nozzle. In view of this, the inventor and others based on their own professional knowledge and long-term research and development experience, research and development of the lack of knowledge, can borrow this case The present invention proposes to improve the existing shortcomings, and to enable the product to be perfected, work, and practical. [Invention] The present invention is directed to an ultrahigh pressure fluid jet for cutting water sand backflow 6 200829340 structure, the main purpose of which is : Destroy the high pressure water flow when it is closed after opening - the negative enthalpy generated, so that the water sand can not produce countercurrent phenomenon, and completely solve the main cause of the back pressure of the water sand caused by the negative pressure caused by the negative pressure. For the above purposes, the means of this case is that the negative pressure is generated, that is, the pressure is not generated by the pressure balance technique, so as to prevent the backflow of the water sand. The specific implementation of the above-mentioned means is that a plurality of grooves are formed on the bottom annular surface of the nozzle holder, and the groove can reduce the contact area between the bottom annular surface and the interior of the lock body, so that the bottom annular surface and the lock body are A number of pores are formed on the contact surface, and by the formation of the pores, the accommodating space and the sand mixing chamber which are originally blocked: will form a communication relationship, and the existing pores will be used to open the water due to the south pressure. The negative pressure that will be generated after the closing is closed, and the negative pressure is destroyed before the formation is formed due to the pressure balance of the accommodation space, the mixing chamber and the perforation, so that the generation of the negative pressure can be avoided, thereby preventing the water from being blocked. The phenomenon of backflow of sand, in order to achieve the purpose of effectively extending the life of the nozzle. _ Describing means, in addition to being carried out by machining a plurality of grooves formed in the bottom annular surface of the nozzle holder, the grooves may be embodied as a flat surface or any structure capable of passing air pressure. [Embodiment] The details of the "Ultra-high pressure fluid jetting structure for cutting against water-sand backflow" of the present invention and the effects that can be produced are described below with reference to the preferred embodiment of the present invention. For the first time, please refer to the third, fourth and fifth figures. In this case, "Can be 7 200829340 to prevent the back of the water sand from using the nozzle holder 3', which is sprayed on the dome of the seat 3, and the structure "includes - The nozzle receiving groove has a nozzle receiving groove 32 on the seat body 3. The lower part is formed; the hole 34 and the through hole 35; and the side of the ring can be seen as "an ancient _ face hit, and the annular slant bottom (four) face 7 extends the ring body 36, the present invention is characterized in that the bottom ... 37 is provided with an appropriate number The groove 33. The inner 2 and the sixth figure, when the mouthpiece 3 is installed in the accommodating space η2; the macro ring surface 37 will fit the inner ring surface of the lock body 11, but the bottom torus 37 is provided with a plurality of concave ridges 33, such that a plurality of apertures (i.e., at the grooves 33) are formed between the bonding surfaces of the original: the gaps allow the air pressure of the mixing chamber 116 and the accommodating space 112 to circulate, and the side of the space 112 is disposed. Set the perforation m, so that the internal pressure of the fluid sniffing garment is balanced with the atmospheric pressure of the outside world. When the high-pressure water flow is closed after opening, the negative pressure will be generated, which will be due to the space "7 to 11 6 The air pressure balance of the dental hole 11 7 causes the negative pressure to be destroyed when the W is not formed, thereby preventing the backflow of the water sand after the formation of the negative pressure, thereby preventing the nozzle from being damaged, thereby extending the nozzle or the nozzle. The life of the seat 3. The number of the grooves 33, based on the need for air pressure convection, more than two It is better to set the equidistant or unequal distance relationship; the groove 3 3 can be modified to be implemented in a plane. Please refer to the seventh figure, which is another embodiment of the nozzle holder 4 of the present invention. The difference in the previous embodiment is that the extended ring body 36 of the third figure is not provided. 200829340 Product: Shooting ^Ultra high-pressure radiation structure for preventing water sand countercurrent cutting", cleverly transporting (4) force balance m to avoid guilt p can achieve the effect of maintaining equipment and extending life. Its technology is being used. 1 piece. The case is indeed in the industry. It is not seen in the publication or public use, and it is not the technology in /. Furthermore, this case effectively solves the long-term problems in the prior art and achieves the long-term needs of the time (4) and the elimination (4).
並非能輕易完成。本案富具專利法規定之 法提：L?生」、「新穎性」與「進步性」等要件，麦依 —、月1，.懇吞青！句局詳查，並儘早為准予專利之審 乂保4中晴人之智慧財產權，俾勵創新。 本發明雖藉由前述實施例來描述，但仍可變化直形 :態與：節，於不脫離本發明之精神而達成，並由熟悉此 、安人士可了解。前述本案之較佳實施例，僅係藉 卞原理可以具體實施的方式之一，但~並不以此為限 制’應依後附之中請專利範圍所界定為準'It is not easy to accomplish. This case is rich in the provisions of the Patent Law: L? Health, "novelty" and "progressive" and other elements, Mai Yi -, month 1, 恳 恳 !! The sentence is examined in detail, and the patent examination is granted as soon as possible. 4 The intellectual property rights of Qingren are guaranteed and innovation is encouraged. The present invention has been described in terms of the foregoing embodiments, but can be modified in the form of a straight line and a section without departing from the spirit of the invention, and will be understood by those skilled in the art. The preferred embodiment of the present invention is only one of the ways in which the principle can be implemented by the principle of the present invention, but it is not limited thereto.
【圖式簡單說明】 ^圖·係為習知噴嘴座組置於流體噴射裝置的示意圖。 第_二圖：係為習知噴嘴座的結構剖面圖。 =一圖·係為本發明噴嘴座的立體外觀圖。 =四圖·係為本發明噴嘴座的側視圖。 第五圖·係為第四圖的A-Α剖面圖。 第六圖：i 馬本發明噴嘴座組置於流體噴射裝置的示意 圖0 200829340 第七圖：係為本發明喷嘴座之另一實施例。[Simple description of the drawing] ^Fig. is a schematic diagram of a conventional nozzle holder set placed in a fluid ejection device. Figure _2: A structural cross-sectional view of a conventional nozzle holder. = Figure 1 is a perspective view of the nozzle holder of the present invention. = Four figures are a side view of the nozzle holder of the present invention. The fifth figure is a cross-sectional view of the A-Α of the fourth figure. Fig. 6 is a schematic view showing the arrangement of the nozzle holder of the invention in a fluid ejection device. Figure 0 200829340 Figure 7 is another embodiment of the nozzle holder of the present invention.
【主要元件符號說明】 1--- --流體喷射裝置 11-- --鎖合體 111- --腔膛空間 112- --容置空間 113- —斜插管 114- --噴射管體 115- --噴射口 116- --混砂室 117- --穿孔 12 — —本體 1--- 喷嘴座 20 — —座體 ， 2卜- ---喷嘴容置槽 22-- --環狀斜面 23-- ---底部環面 24 — - -穿孔 25-- —穿孑L 3—— 喷嘴座 30-- —座體 31 — •--環狀斜面 3 2 — —喷嘴容置槽 33-- —凹槽[Main component symbol description] 1----fluid ejection device 11---locking body 111--cavity space 112-- accommodating space 113--inclined cannula 114--spray tube body 115 - - Injection port 116 - - Mixing chamber 117 - - Perforation 12 - Body 1 - Nozzle holder 20 - Seat, 2 Bu - --- Nozzle receiving groove 22 --- Ring Bevel 23---- bottom annulus 24 - - perforation 25 - - through 孑 L 3 - nozzle holder 30 - - seat 31 - • - annular bevel 3 2 - nozzle accommodating groove 33 --- Groove
10 200829340 34 -----穿孔 35 -----穿孔 36 ----延伸環鍾 37 ------底部環面 4-----噴嘴座10 200829340 34 -----Perforation 35 -----Perforation 36 ----Extension ring clock 37 ------Bottom torus 4-----Nozzle holder