1290032 玖、發明說明： 【發明所屬之技術領域】 發明領域 本發明涉及通過從多個清洗嘴嘴中喷射由清洗系加壓 的水而清洗餐具的餐具清洗機。 C先前技術】 發明背景 現有的這種餐具清洗機像第9圖以及第1〇圖所示的那 樣構成。以下參照附圖對現有例進行說明。 10 供水路徑1向餐具清洗機主體2供給自來水。由供水闕3 控制供水。設在餐具清洗機主體2内部的清洗槽4在其内部 具備儲存供給水的儲水部5。水位感測器6設置成與儲水部5 連通。 儲存在儲水部5内的水被設在儲水部5内的加熱器7加 15熱，同時，被清洗泵8加壓。被加壓的水從設置的多個清洗 喷嘴9喷向餐具框(籠）1〇内的餐具，對餐具進行清洗。排水 泵11排出清洗槽4内的水。 4具清洗機主體2具備開關自如的前門12，以便能夠使 餐具框10出入。剩飯菜過濾器13擋住附著在餐具上的剩飯 20 菜。 對所述結構的動作加以說明。將餐具放置在餐具框1〇 内並收放進清洗槽4中，一旦開始運轉，供水閥3開啓並通 過供水路徑1向清洗槽4供水。供給的水儲存在清洗槽4的錄 水部5内。然後，一旦水位感測器6檢測到水位到了規定的 1290032 水位，就Μ供糊3，供水結束，隨之清洗泵8被驅動。 儲存在儲水部5内的水，由加熱器7加熱的同時被清洗 泵8加壓。被加壓了的水從清洗喷嘴9喷向餐具框10内的餐 具’對餐具進行清洗。一旦清洗結束，就由排水泵u排出 5 清洗槽4内的水。 另外，特開平5-176875號公報中的基本結構與所述現 有例相同’設有只與各清洗喷嘴相應數目的清洗泵，通過 有選擇地使水從清洗噴嘴中喷射出，就能夠實現運轉時的 低噪音化和節水。 0 然而，在這種現有的結構中，由於同時從多個清洗喷 嘴9噴射出水，所以噪音很大，並需要大量的清洗槽4内的 水0 另外，設置只與各清洗喷嘴相應數目的清洗泵，使水 從各清洗喷嘴選擇地喷射出來的結構，雖然可以降低噪音 15 和節水，但是’設置多個清洗泵關係到成本的上升，同時 還存在設備整體大型化的問題。 I；發明内容2 發明概要 本發明是鑒於所述現有技術的問題而提出的。 20 本發明的餐具清洗機具備清洗泵和多個清洗噴嘴、以 及在連結清洗泵和多個清洗喷嘴的水路中途配置的切換 閥。切換閥具備將被清洗泵加壓了的水導入的入口、將該 導入的水導出到多個清洗喷嘴的多個出口、連通所述入口 和所述出口的通水部、以及依次堵塞所述多個出口的堵塞 1290032 部件。即，它是一種將被清洗泵加壓了的水利用切換閥依 次導入多個清洗喷嘴的結構。 圖式簡單說明 第1圖是本發明的1實施例的餐具清洗機切換閥的剖視 5 圖。 第2圖是該餐具清洗機的剖視圖。 第3圖是該餐具清洗機的側剖視圖。 第4圖A是該餐具清洗機的切換閥的堵塞部件的側視 圖，B是該餐具清洗機的切換閥的堵塞部件的上方立體圖， 10 C是該餐具清洗機的切換閥的堵塞部件的下方立體圖。 第5圖A是該餐具清洗機的A-A線剖視圖，B是該餐具清 洗機的B-B線剖視圖，C是該餐具清洗機的C-C線剖視圖，D 是該餐具清洗機的D-D線剖視圖。 第6圖是該餐具清洗機的堵塞部件和開口面處於接觸 15 狀態的俯視圖。 第7圖是該餐具清洗機構成凸輪機構的滑動面的立體 圖。 第8圖A是該餐具清洗機固定了配重部件的堵塞部件的 上方立體圖，B是該餐具清洗機固定了配重部件的堵塞部件 20 的下方立體圖。 第9圖是現有的餐具清洗機的剖視圖。 第10圖是現有的餐具清洗機的側剖視圖。 【實施方式3 較佳實施例之詳細說明 7 1290032 以下，參照附圖對本發明的丨實施例進行說明。另外， 對與現有例相同結構的部件賦予同一符號而省略其說明。 如第2以及3圖所示，清洗槽4設在餐具清洗機主體2的 内部。在清洗槽4的内部具有儲存供給水的儲水部5。設在 5該儲水部5上的加熱器7對儲存在儲水部5的水進行加熱。 在清洗槽4的内部，左側設有清洗喷嘴14、右側設有清 洗噴嘴15、在後側設有清洗噴嘴16。在清洗噴嘴14〜16和 清洗泵8之間設有切換閥17。切換閥17依次切換以便將被清 洗泵8加壓了的水通到清洗噴嘴14〜16的任丨個或2個。 10 切換閥17像第1圖所示的那樣構成。通水部18連結導入 被清洗泵8加壓了的水的入口 19、和將導入的水分別導出到 清洗喷嘴14〜16的出口 20a〜20d(其詳細參照第5A圖）。在 通水部18的内部設有在入口 19和出口 2〇a〜2〇d之間往返運 動、並且一邊斷續轉動一邊依次堵塞出口 2〇a〜2〇d的堵塞 15部件21。在堵塞部件21上設有與該堵塞部件21的往返運動 連動而朝一個方向轉動規定角度的凸輪機構22、23。 在堵基部件21的外圓周和通水部Μ的内圓周之間設有 規定間隙，以便使通過通水部18的水中所含的食物通過堵 塞部件21和通水部18之間。 -° 入口 19朝垂直於堵塞部件21的往返運動方向開口，以 便使橫向的水流沖到凸輪機構23。利用這種結構，能夠防 止食物等異物堵塞、堆積在凸輪機構23上。 第4A圖是堵塞部件的側視圖、第4B圖是堵塞部件上方 的立體圖、第4C圖是堵塞部件下方的立體圖。 1290032 堵塞部件21由具有缺口 24和平坦部25的圓盤26構成。 滑動面27a、27b設在圓盤26的上表面構成凸輪機構22。滑 動面27a、27b具有傾斜，在以圓盤26的大致中心爲軸的同 一圓周上相連。另外多個滑動面28在圓盤26的下方構成凸 5輪機構。滑動面28具有傾斜，在以圓盤26的大致中心爲轴 的同一圓周上相連。導向孔29設在圓盤26的大約中央部位。 第5A-D圖所示的是切換閥的剖面，第5A圖所示的是第 1圖的A-A線剖視圖、第5B圖所示的是第i圖的B_B線剖視 圖、第5C圖所示的是第1圖的c_c線剖視圖、第5]〇圖所示的 10 是苐1圖的D-D線剖視圖。 如第5A圖所示，將水導出到清洗噴嘴14〜16的出口是 由4個出口 20a〜20d構成。出口2加將水導向左側的清洗喷 嘴14，出口20c將水導向右側的清洗喷嘴15，出口2〇d將水 導向後側的清洗喷嘴16,出口20b將水導向清洗喷嘴14、15 15 兩方。 出口 20a〜20d具有平坦的在同一平面上的開口面3〇。 出口 20a〜20d與堵塞部件21上的平坦部25相對向。開口面 30的孔徑D1比平坦部25的外徑D2小。堵塞部件21在入口 19 和出口 20a〜20d之間做往返運動時，平坦部μ與開口面3〇 20水密接觸。此時，與堵塞部件21上的缺口 24的位置一致的 出口 20a〜20d的任一個成爲向清洗噴嘴導水的出口，剩下 的出口20a〜20d内的3個被堵塞。 第6圖所示的是堵塞部件21的平坦部25處於與開口面 30接觸狀態的一例。在這種情況下，出口2〇a、2〇c、2〇d被 1290032 堵塞，只出口20b開口，水被導向清洗喷嘴14、15兩方。 堵基部件21以向上方移動時的運動爲往路， 以向下方 移動0寺的運動爲返路。在往路的終端，堵塞部件21的平坦 $ 425與開口面3〇接觸，但在返路的終端，堵塞部件21的平 垣部25與開口面3〇具有規定的間隙。在一次往返運動之 門利用凸輪機構22、23，堵塞部件21設定成以導向孔29 的中心軸31爲中心，只旋轉出口 20a〜20d之中相鄰的2個出 ϋ所成的角度。 因此’堵塞部件21在從第6圖所示的狀態下降而向返路 的终端移動’接著堵塞部件21上升向往路的終端移動時， 堵基部件21只旋轉出口 20b和出口 20c所成的角度。然後， 堵基出口 20a、20b、20d，只出口 20c開口，水被導向右側 的清洗喷嘴15。 另外，堵塞部件21的往返運動主要是利用被清洗泵8 15加壓了的水所具有的水力和作用於堵塞部件21上的重力進 行的。雖然重力通常作用於堵塞部件21，但是，由於以清 洗泵8産生的水力遠大於作用於堵塞部件21的重力，所以， 能夠完全忽視堵塞部件21受到水力作用時的重力作用。而 且’通過交替進行清洗泵8的運轉和停止來使堵塞部件21進 20 行往返運動。 這樣，堵塞部件21在入口 19和出口 20a〜20d之間作往 返運動的同時，由於以導向孔29的中心軸31爲中心旋轉規 定角度，出口 20a〜20d同時3個3個地依次被堵塞，出口 2〇a 〜2〇d中的1個依次開口。例如，在堵塞部件21的旋轉方向 10 1290032 如第6圖所示那樣的場合，出口依2〇a—20b—20c—20d—20a 的順序開口，伴隨於此，水一直依次被導出到清洗喷嘴14— 清洗喷嘴14以及15兩方—清洗喷嘴15—清洗喷嘴16—清洗 喷嘴14。在這裏，出口 20b與清洗喷嘴14以及15兩方連接。 接下來，對凸輪機構22進行說明。堵塞部件21的滑動 面27a與用作構成出口 20a〜20d的開口面30—部分的助肋 32滑動接觸，構成凸輪機構22而把直線運動變換成旋轉運 動。助肋32從開口面30的大致中心處以近乎等距離間隔呈 放射狀延伸。 10 堵塞部件21設定成在下降的位置即返路的終端，從上 方俯視時滑動面27a和助肋32在重合的位置。並且，堵塞部 件21受到用清洗果8加壓了的水的水力而上升，滑動面27a 和助肋32相接觸。 堵塞部件21接觸後還會因水力而受到向上方的力。因 15此因滑動面27a的傾斜而産生滑動，一邊進行旋轉運動一邊 上升。助肋32使滑動面27a滑動時，助肋32就與堵塞部件21 的平坦部25接觸，堵塞部件21的上升和旋轉運動同時停 止。此時，多個助肋32全部與堵塞部件的平坦部25無縫隙 地接觸。即，被堵塞部件的圓盤26堵塞的出口 2〇不透水。 20另外，如果滑動面27b和助肋32設定爲滑動接觸的話，則堵 塞部件21的旋轉方向將朝向反方向。 這裏，如果用以中心軸31爲軸的螺旋面來形成滑動面 27a的話，則助肋32與滑動面27a將在一條直線上接觸，滑 動就將很順利。即，可以降低磨損。另外，通過自身清洗 11 1290032 入 靠性 10 15 20 這晨，如第6圖所示，向福 > 办 向通水部18導水的入口 19開在偏 離中心軸31的方向，以在诵介 士认 、良邛18的内部産生渦流。該渦 机的方向與堵塞部件21的旋 ,. 〇1π 《财肖—致，它起到辅助堵塞 々目凸輪機構22進行旋轉的作用。因此，能夠提高堵 领21旋轉的可雜，提高作“換__作可靠性。 接下來對凸輪機構23進行說明。第7圖是與堵塞部件2] 的滑動面28成對的、構成凸輪機構_滑動㈣的立體 圖。滑動面33具有傾斜，在_心_祕的同—圓周上 相連H在滑動面33的中錢有作爲使堵塞部件训 :返運動穩㈣導向部件的、與堵塞料U的導向孔洲 σ的軸34。轴34的剖面爲十字狀’通過與導向㈣的内圓 =設置大的間隙，而使含在通過的水中的食物等異物就 ^得不易堵塞。這樣，則導向孔29和軸34的作用，能夠 k南作爲切換閥17的動作的可靠性。 凸輪機構23與凸輪機構22進行同樣的動作，通過使辞 基部件21的滑動面28與滑動面33滑動接觸，將直線運動變 換成旋轉軸。即，堵塞部件21設定成在上升的位置，gF 在往路的終端，從下仰視的話，滑動面28和滑動面幻在重 合的位置。堵塞部件21在不受到清洗泵8停止時的水力的壯 態下因重力而下降時，滑動面28和滑動面33接觸。堵塞部 件21接觸後還會因重力而受到向下方的力，因此，因滑象BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes by spraying water pressurized by a cleaning system from a plurality of cleaning nozzles. C Prior Art Background of the Invention The conventional dishwasher is constructed as shown in Fig. 9 and Fig. 1 . The prior art will be described below with reference to the drawings. 10 The water supply path 1 supplies tap water to the dishwasher main body 2. The water supply is controlled by the water supply 阙3. The washing tank 4 provided inside the dishwasher main body 2 has a water storage portion 5 for storing the supply water therein. The water level sensor 6 is disposed in communication with the water storage portion 5. The water stored in the water storage unit 5 is heated by the heater 7 provided in the water storage unit 5, and is pressurized by the cleaning pump 8. The pressurized water is sprayed from the plurality of cleaning nozzles 9 provided to the tableware in the bowl (frame), and the tableware is washed. The drain pump 11 discharges the water in the washing tank 4. The four washing machine main bodies 2 are provided with a front door 12 that is freely switchable so that the dishware frame 10 can be taken in and out. The leftover food filter 13 blocks the leftovers attached to the tableware for 20 dishes. The operation of the structure will be described. The tableware is placed in the dishware frame 1 and placed in the washing tank 4. Once the operation is started, the water supply valve 3 is opened and water is supplied to the washing tank 4 through the water supply path 1. The supplied water is stored in the water recording portion 5 of the washing tank 4. Then, once the water level sensor 6 detects that the water level has reached the prescribed water level of 1290032, the paste 3 is supplied, the water supply is completed, and the washing pump 8 is driven. The water stored in the water storage portion 5 is heated by the heater 7 while being pressurized by the cleaning pump 8. The pressurized water is ejected from the washing nozzle 9 to the dish in the dishware box 10 to clean the tableware. Once the cleaning is completed, the water in the cleaning tank 4 is discharged by the drain pump u. Further, the basic configuration of Japanese Laid-Open Patent Publication No. Hei No. 5-176075 is the same as that of the conventional example. A cleaning pump is provided in a number corresponding to each cleaning nozzle, and the water can be selectively discharged by ejecting water from the cleaning nozzle. Low noise and water saving. 0 However, in this conventional structure, since water is ejected from a plurality of washing nozzles 9 at the same time, noise is large, and a large amount of water in the washing tank 4 is required. In addition, a cleaning amount corresponding to each washing nozzle is set. The pump, which selectively ejects water from each washing nozzle, can reduce noise 15 and save water, but 'providing a plurality of washing pumps is associated with an increase in cost, and there is also a problem that the entire apparatus is enlarged. I. SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the prior art described above. The dishwasher of the present invention includes a washing pump, a plurality of washing nozzles, and a switching valve disposed in the middle of the water passage connecting the washing pump and the plurality of washing nozzles. The switching valve includes an inlet for introducing water pressurized by the cleaning pump, a plurality of outlets for discharging the introduced water to the plurality of cleaning nozzles, a water passing portion that communicates the inlet and the outlet, and sequentially blocking the water Multiple outlets block the 1290032 part. That is, it is a structure in which a water pressurized by a washing pump is introduced into a plurality of washing nozzles in succession by a switching valve. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a cutting valve of a dishwasher according to a first embodiment of the present invention. Fig. 2 is a cross-sectional view of the dishwasher. Figure 3 is a side cross-sectional view of the dishwasher. Fig. 4A is a side view of the clogging member of the switching valve of the dishwasher, B is a top perspective view of the clogging member of the switching valve of the dishwasher, and 10 C is below the clogging member of the switching valve of the dishwasher. Stereo picture. Fig. 5A is a cross-sectional view taken along line A-A of the dishwasher, B is a cross-sectional view taken along line B-B of the dishwasher, C is a cross-sectional view taken along line C-C of the dishwasher, and D is a cross-sectional view taken along line D-D of the dishwasher. Fig. 6 is a plan view showing the state in which the clogging member and the opening face of the dishwasher are in contact 15. Fig. 7 is a perspective view showing the sliding surface of the dishwasher which constitutes the cam mechanism. Fig. 8A is a top perspective view of the clogging member to which the weight member is fixed in the dishwasher, and B is a lower perspective view of the clogging member 20 to which the weight member is fixed. Figure 9 is a cross-sectional view of a conventional dishwasher. Figure 10 is a side cross-sectional view of a conventional dishwasher. [Embodiment 3] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 7 1290032 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, members having the same configurations as those of the conventional example are denoted by the same reference numerals, and their description will be omitted. As shown in Figs. 2 and 3, the washing tank 4 is provided inside the dishwasher body 2. Inside the washing tank 4, there is a water storage portion 5 that stores supply water. The heater 7 provided in the water storage unit 5 heats the water stored in the water storage unit 5. Inside the washing tank 4, a washing nozzle 14 is provided on the left side, a washing nozzle 15 is provided on the right side, and a washing nozzle 16 is provided on the rear side. A switching valve 17 is provided between the cleaning nozzles 14 to 16 and the cleaning pump 8. The switching valve 17 is sequentially switched to pass water pressurized by the cleaning pump 8 to any one or two of the cleaning nozzles 14 to 16. The switching valve 17 is configured as shown in Fig. 1 . The water-passing portion 18 connects the inlet 19 into which the water pressurized by the cleaning pump 8 is introduced, and the water to be introduced to the outlets 20a to 20d of the washing nozzles 14 to 16 (see Fig. 5A for details). Inside the water-passing portion 18, there is provided a clogging member 21 that reciprocates between the inlet 19 and the outlets 2〇a to 2〇d and sequentially blocks the outlets 2〇a to 2〇d while intermittently rotating. The clogging member 21 is provided with cam mechanisms 22 and 23 that rotate in a predetermined direction in conjunction with the reciprocating motion of the clogging member 21. A predetermined gap is provided between the outer circumference of the blocking base member 21 and the inner circumference of the water passing portion 以便 so that the food contained in the water passing through the water passing portion 18 passes between the blocking member 21 and the water passing portion 18. The inlet 19 is opened in a direction perpendicular to the reciprocating movement of the blocking member 21 to flush the lateral flow of water to the cam mechanism 23. With this configuration, it is possible to prevent foreign matter such as food from being clogged and accumulated on the cam mechanism 23. Fig. 4A is a side view of the blocking member, Fig. 4B is a perspective view of the upper portion of the blocking member, and Fig. 4C is a perspective view of the lower portion of the blocking member. 1290032 The blocking member 21 is constituted by a disk 26 having a notch 24 and a flat portion 25. The sliding surfaces 27a and 27b are provided on the upper surface of the disk 26 to constitute a cam mechanism 22. The sliding faces 27a, 27b are inclined and connected to the same circumference which is centered on the approximate center of the disk 26. Further, a plurality of sliding surfaces 28 constitute a convex five-wheel mechanism below the disk 26. The sliding surface 28 has an inclination and is connected on the same circumference which is substantially the center of the disk 26. The guide hole 29 is provided at approximately the center of the disk 26. 5A-D is a cross-sectional view of the switching valve, FIG. 5A is a cross-sectional view taken along line AA of FIG. 1, and FIG. 5B is a cross-sectional view taken along line B_B of the i-th diagram and FIG. 5C. FIG. 1 is a cross-sectional view taken along line c_c, and FIG. 5 is a cross-sectional view taken along line DD of FIG. As shown in Fig. 5A, the outlet for discharging water to the washing nozzles 14 to 16 is composed of four outlets 20a to 20d. The outlet 2 is supplied with water to the cleaning nozzle 14 on the left side, the outlet 20c directs the water to the cleaning nozzle 15 on the right side, the outlet 2〇d directs the water to the cleaning nozzle 16 on the rear side, and the outlet 20b directs the water to the cleaning nozzles 14, 15 15 . The outlets 20a to 20d have flat open faces 3〇 on the same plane. The outlets 20a to 20d face the flat portion 25 on the clogging member 21. The aperture D1 of the opening surface 30 is smaller than the outer diameter D2 of the flat portion 25. When the clogging member 21 reciprocates between the inlet 19 and the outlets 20a to 20d, the flat portion μ is in watertight contact with the opening surface 3 〇 20 . At this time, any one of the outlets 20a to 20d that coincides with the position of the notch 24 in the clogging member 21 serves as an outlet for guiding the water to the cleaning nozzle, and three of the remaining outlets 20a to 20d are blocked. Fig. 6 shows an example in which the flat portion 25 of the clogging member 21 is in contact with the opening surface 30. In this case, the outlets 2〇a, 2〇c, 2〇d are blocked by 1290032, and only the outlet 20b is opened, and the water is directed to both the cleaning nozzles 14, 15. The blocking base member 21 is a forward movement when moving upward, and is moved back to the movement of the 0 temple. At the end of the forward path, the flatness 425 of the blocking member 21 is in contact with the opening surface 3A, but at the end of the returning path, the flat portion 25 of the blocking member 21 and the opening surface 3'' have a predetermined gap. The cam mechanism 22, 23 is used for the door of the reciprocating motion, and the clogging member 21 is set so as to rotate only the angle between the two adjacent ones of the outlets 20a to 20d around the central axis 31 of the guide hole 29. Therefore, the 'blocking member 21 is lowered from the state shown in Fig. 6 and moved to the terminal of the returning path.' Then, when the blocking member 21 is moved to the terminal of the forward path, the blocking member 21 rotates only the angle formed by the outlet 20b and the outlet 20c. . Then, the base outlets 20a, 20b, and 20d are opened, and only the outlet 20c is opened, and the water is guided to the cleaning nozzle 15 on the right side. Further, the reciprocating motion of the clogging member 21 is mainly performed by the hydraulic force of the water pressurized by the washing pump 815 and the gravity acting on the clogging member 21. Although gravity acts on the clogging member 21, since the hydraulic force generated by the cleaning pump 8 is much larger than the gravity acting on the clogging member 21, the gravity action when the clogging member 21 is subjected to the hydraulic action can be completely ignored. Further, the blocking member 21 is reciprocated 20 times by alternately performing the operation and the stop of the cleaning pump 8. In this way, the clogging member 21 reciprocates between the inlet 19 and the outlets 20a to 20d, and the outlets 20a to 20d are sequentially blocked by three or three at the same time by rotating a predetermined angle around the central axis 31 of the guide hole 29. One of the outlets 2〇a to 2〇d is sequentially opened. For example, in the case where the rotational direction 10 1290032 of the blocking member 21 is as shown in Fig. 6, the outlet is opened in the order of 2〇a-20b-20c-20d-20a, and water is sequentially led to the washing nozzle. 14— Both the cleaning nozzles 14 and 15 — the cleaning nozzle 15 — the cleaning nozzle 16 — the cleaning nozzle 14 are cleaned. Here, the outlet 20b is connected to both the cleaning nozzles 14 and 15. Next, the cam mechanism 22 will be described. The sliding surface 27a of the blocking member 21 is in sliding contact with the assisting rib 32 serving as a portion of the opening surface 30 constituting the outlets 20a to 20d, and constitutes the cam mechanism 22 to convert linear motion into rotational motion. The ribs 32 extend radially from the approximate center of the opening face 30 at approximately equidistant intervals. The clogging member 21 is set to a position at which the returning position is the returning position, and the sliding surface 27a and the auxiliary rib 32 are overlapped when viewed from above. Further, the clogging member 21 is lifted by the hydraulic force of the water pressurized by the cleaning fruit 8, and the sliding surface 27a is in contact with the rib 32. When the blocking member 21 comes into contact, it receives an upward force due to hydraulic force. Since the sliding of the sliding surface 27a is caused by the inclination of the sliding surface 27a, the rotation is increased while performing the rotational motion. When the rib 32 slides the sliding surface 27a, the rib 32 comes into contact with the flat portion 25 of the clogging member 21, and the rising and rotating motion of the clogging member 21 are simultaneously stopped. At this time, all of the plurality of auxiliary ribs 32 are in contact with the flat portion 25 of the clogging member without a gap. That is, the outlet 2 blocked by the disk 26 of the blocked member is impervious to water. Further, if the sliding surface 27b and the auxiliary rib 32 are set to be in sliding contact, the rotational direction of the blocking member 21 will be directed in the reverse direction. Here, if the sliding surface 27a is formed by the spiral surface having the central axis 31 as the axis, the auxiliary rib 32 and the sliding surface 27a will come into contact in a straight line, and the sliding will be smooth. That is, wear can be reduced. In addition, by self-cleaning 11 1290032 into the morning of 10 15 20, as shown in Fig. 6, the entrance 19 to the water-passing portion 18 is turned in the direction away from the central axis 31, so as to The inside of the shi, the Liangzhu 18 produces eddy currents. The direction of the vortex machine and the rotation of the clogging member 21 are 辅助1π, which serves to assist the clogging of the cam mechanism 22 to rotate. Therefore, it is possible to improve the miscellaneousness of the rotation of the plug collar 21, and to improve the "change" for reliability. Next, the cam mechanism 23 will be described. Fig. 7 is a pair of cams that are paired with the sliding surface 28 of the blocking member 2, and constitute a cam. Stereo view of the mechanism_sliding (four). The sliding surface 33 has an inclination, and is connected to the same circumference of the _ heart_secret H. The money in the sliding surface 33 is used as a means for blocking the blocking member: returning the movement to the (four) guiding member, and the blocking material The axis of the guide hole σ of the U is 34. The cross section of the shaft 34 is a cross-shaped 'passing the inner circle of the guide (4) = setting a large gap, so that the foreign matter such as food contained in the passing water is not easily clogged. The action of the guide hole 29 and the shaft 34 enables k to be used as the reliability of the operation of the switching valve 17. The cam mechanism 23 performs the same operation as the cam mechanism 22, and slides the sliding surface 28 of the base member 21 with the sliding surface 33. In the contact, the linear motion is converted into a rotating shaft. That is, the blocking member 21 is set at the rising position, and the gF is at the end of the forward path, and the sliding surface 28 and the sliding surface are slid in a position where they are viewed from the bottom. The blocking member 21 is not When the cleaning pump 8 is stopped When the hydraulic strength is lowered by gravity, the sliding surface 28 is in contact with the sliding surface 33. When the blocking member 21 is in contact, the force is downward due to gravity, and therefore, the sliding image
12 1290032 面28的傾斜而産生滑動，在旋轉的同時下降。 若滑動面33使滑動面28滑動，則堵塞部件㈣下降和 旋轉運動同時停止。此時，堵塞部件21的平垣物和出口 20維持規定的間隔並處於靜止狀態。然後，下—次，在堵 5塞部件21受到水力再次上升時，堵塞部件21的缺口 ％，與 上次開口的出口 20a〜2〇b之外的出口一致、例如與出口 2〇a 的下一個同其相鄰的出口 2〇b—致。 這裏，如果用以中心軸31爲軸的螺旋面形成滑動面Μ 以及滑動面33的話，則滑動面28與滑動面％就在同一面上 10接觸。即滑動順暢，可以降低磨損。另外，這樣還有在滑 動面28以及滑動面33的表面上不易堆積髒物等的效果，有 利於堵塞部件21的運動順利進行。 這裏，對堵塞部件21的往返運動進行更加詳細的說 明。第8A圖所示的是在堵塞部件21上固定了配重部件^的 15狀態下的立體圖。第_是其俯視圖。在構成堵塞部件21 的圓盤26其靠近通水部18内入口 19 一側的面上設有爪％。 用板金材料製成的配重部件35嵌入爪36而被固定住。如第 SB圖所示，配重部件35的形狀設定爲其重心接近圓盤㈣ 缺口 24 一側，以便構成使堵塞部件21和配重部件35兩者合 20 成的重心位於中心軸31附近。 由於堵塞部件21下降時的運動是由重力來進行的，堵 塞部件21整體的重量大的話，它下降就迅速。伴隨於此， 下降日吁間縮短’月b夠縮短一次往返運動所需的時間。通過 使以板金材料製成的配重部件35變厚、並重疊多個部件 13 1290032 35，就能夠調整一次往返運動所需的時間。 由於堵塞部件21在圓盤26上具有缺口 24，所以堵塞部 件21的重心與中心軸31有間隔而偏離中心轴。由於堵塞 邛件21利用導向孔29和通水部18内的轴的散合來引導進 5行往返運動，所以在堵塞部件21的重心産生偏離的場合， 堵塞部件21卿樣傾斜著往返運動。S此，滑動面27a和助 肋32、或者滑動面28和滑動面33咬合不好，會産生凸輪機 構22、23不能正常工作的情況。 即，如果堵塞部件21傾斜著進行往返運動，凸輪機構 10 22、23不很好地卫作，直線運動沒有變換成旋轉運動。另 外，不忐依次堵塞出口 2〇a〜2〇d，致使切換閥17的動作不 釔定另外，如果堵塞部件21傾斜著進行往返運動，導向 孔29和軸34的接觸不均勻，也明顯地産生局部的磨損。 因此，通過利用配重部件35將堵塞部件21整體的重心 k正到中〜軸31附$，而能儘量降低往返運動巾堵塞部件 21的傾斜。這#，凸輪22、23始終正常工作。即，堵塞部 _的直線運動始終正確地變換成旋轉運動，能夠依次堵 基出口20a〜20d，切換閥17的動作非常地穩定。另外，通 過固定配重部件35使堵塞部件21整體的重量增加，相對於 2〇水的比重加大，産生下降時不易受水的阻力的效果。這樣 也能使堵塞部件21的替換動作穩定。 另外’在第8A-B圖中，雖然配重部件35嵌入爪36而被 固定住，但不一定非用這種方法固定。也可以採用例如像 第3〜6圖所不的那樣，使設置在堵塞部件21上的樹脂制突 14 1290032 起因熱而變形來固定配重部件35的方法。另外，還可以用 用螺絲固定的方法、用C形鎖環或E形鎖環等固定的方法、 用開口銷等固定的方法等等。 另外，作爲使堵塞部件21的重量變大的方法，可以是 5 用樹脂成形材料作做成堵塞部件21，使金屬制等比重大的 配重部件包在堵塞部件21内部。在這種場合，不必擔心堵 基部件21在切換動作中配重部件脫落，也容易防止配重部 件生銹，可以使用低成本的金屬材料。 另外，如果在堵塞部件21的外部固定配重部件35，需 10要爪36那樣的突起，在這部分有可能會附著含在清洗水中 的食物等異物，但通過將配重部件35包在内部，就不會産 生這樣的附著。 另外’爲了使堵塞部件21的重量變大，也可以用金屬 成型材料製成堵塞部件21。在這種情況下，堵塞部件21相 15對於水的比重變得很大，由於在小容積内增加重量使得堵 基部件21下降時的運動更加穩定。由於比重大，能夠使堵 基部件21小型化，這樣，能夠使切換閥口小型化進一步使 設備整體小型化。 另外’作爲與用金屬成型材料製成堵塞部件21的場合 20具有同樣效果的其他方法，有用添加了金屬片的樹脂材料 製成的方法及用陶瓷製成的方法等。 由於將配重部件35設在構成堵塞部件21的圓盤26其通 水部18内入口 19一側的面上，故具有使堵塞部件21的運轉 穩疋的效果。由於容易加工，假如在以樹脂成形材料製成 15 1290032 堵塞部件21、以板金材料製成配重部件35的場合，將重量 大的設置在下側的方式其由重力引起的自由落體運動表現 出穩定的動作。 另外，由於難以在使配重部件35與出口 20a〜20d的開 5 口面30維持高水密性的同時與其接觸，通過將配重部件35 設在圓盤26的通水部18内入口 19一側的面上，就容易實現 易於維持水密性的結構。 另外，雖然堵塞部件21因水力上升，不過一般說來， 由於清洗泵8的送水能力非常大，故堵塞部件21猛勁與構成 10 出口 20a〜20d的開口面30接觸，即碰撞。因此，如果在此 衝突部分使用配重部件35的話，衝突聲音聽上去會變大。 但是，通過將配重部件35設在圓盤26的通水部18内入口 19 一側的面上，能夠防止在配重部件35與開口面30接觸時發 出的衝突聲。 15 下面對所述結構中的整體動作進行說明。將餐具放入 養具框10内並收放進清洗槽4内，一旦開始運轉，供水閥3 便打開。然後，通過供水路徑丨向清洗槽4供水。被供給的 水儲存在清洗槽4内的儲水部5，利用水位感測器6檢測到達 規定的水位後，關閉供水閥3，供水結束，驅動清洗泵8。 這樣，按S?、這樣的路徑循環：儲存在儲水部5的水被清 洗泵8加壓，通過切換閥17從清洗喷嘴14〜16向餐具框⑺内 的餐具喷射，再返回到儲水部5。此時，清洗栗晴續地運 轉。例如’以運轉25秒後停止5秒這樣的方法反複運轉。利 用這種斷續進行的清洗栗8的運轉，構成切換閱口的堵塞部 16 1290032 件21，由於斷續地受到水力，加之重力的影響從而上升和 下降即進行往返運動。 這種往返運動通過構成切換閥17的凸輪機構22、23被 k換成旋轉運動。堵塞部件21 一次往復只旋轉規定的角 5度，將從清洗泵8送出的水依次導出到口 20a〜20d。這樣， 水就依次從清洗噴嘴14〜16喷射出來。例如，清洗運轉總 共進行3〇分鐘的話，在清洗杲8重複運轉Μ秒後停止$秒的 運轉的場合，切換閥17將進行60次切換動作。由於切換間 17的出口 2〇a〜d共有4個，所以如所述6〇次那樣，通過將二 10換閥17的切換動作次數設定爲4的倍數（一般是出口數的俾 數），就能夠將水均勻地喷射到放置在餐具框1〇裏的全: 具上。 °普 用清洗录8使水進行循環的同日夺，用加熱器加熱而 溫水。清洗結束後，利用排水栗㈣清洗槽4内的水排出 15 去，清洗過程結束。 出 採用如上所述的本實施例，用丨個清洗泵既可，由於以 結構簡單的切換閥Π ’使水依次從清洗喷嘴喷射= 來，既不會使成本上升，也不會使設備整體變大。另外， 由於切換閥17不需要特別的驅動源，只是斷續地運轉 2〇泵8 ’所以，能夠實現低成本，還能夠獲得高可靠性和=久 另外，運轉中的噪音主要是由於從清洗喷嘴14〜 射出的水碰到清洗槽4時的聲音，同時喷射的水量少則較」 靜，但是’採用本實施例，與從所有的清洗噴嘴同時= 17 1290032 的情況相比，由於從各喷射嘴依次喷水同時喷射的水量可 以減少，從而能夠低噪音。 另外，對節水來說，由於循環的水量少，儲存在出水 部5内的水量就能夠減少從而能夠節水，採用本實施例，與 5從所有的清洗喷嘴同時喷水相比，由於是從各喷射嘴依次 喷水從而循環的水量可以減少，從而可以節水。12 1290032 The inclination of the face 28 causes slippage and falls while rotating. If the sliding surface 33 slides the sliding surface 28, the blocking member (4) is lowered and the rotational movement is simultaneously stopped. At this time, the flat object and the outlet 20 of the blocking member 21 are maintained at a predetermined interval and are in a stationary state. Then, in the next time, when the plug 5 is hydraulically raised again, the notch % of the blocking member 21 coincides with the outlet other than the outlets 20a to 2bb that were opened last time, for example, with the outlet 2〇a. An exit 2〇b adjacent to it. Here, if the sliding surface Μ and the sliding surface 33 are formed by the spiral surface having the central axis 31 as the axis, the sliding surface 28 and the sliding surface % are in contact with each other on the same surface 10. That is, the sliding is smooth and the wear can be reduced. Further, there is an effect that dirt or the like is less likely to accumulate on the surfaces of the sliding surface 28 and the sliding surface 33, and the movement of the clogging member 21 is smoothly performed. Here, the reciprocating motion of the blocking member 21 will be described in more detail. Fig. 8A is a perspective view showing a state in which the weight member 15 is fixed to the clogging member 21. The first is its top view. The disk 26 constituting the clogging member 21 is provided with a claw % on the surface on the side closer to the inlet 19 of the water passing portion 18. The weight member 35 made of a sheet metal material is fitted in the claw 36 to be fixed. As shown in Fig. SB, the weight member 35 is shaped such that its center of gravity approaches the side of the notch 24 of the disk (four) so as to constitute a center of gravity in which the center of the block member 21 and the weight member 35 are located. Since the movement when the blocking member 21 is lowered is performed by gravity, the weight of the entire blocking member 21 is large, and it is lowered rapidly. Along with this, the day of the fall is shortened, and the month b is enough to shorten the time required for a round trip. By thickening the weight member 35 made of a sheet metal material and overlapping a plurality of members 13 1290032 35, it is possible to adjust the time required for one round trip. Since the blocking member 21 has the notch 24 on the disk 26, the center of gravity of the blocking member 21 is spaced apart from the central axis 31 and deviates from the central axis. Since the clogging member 21 guides the five-row reciprocating motion by the engagement of the guide hole 29 and the shaft in the water-passing portion 18, when the center of gravity of the clogging member 21 is deviated, the clogging member 21 is tilted and reciprocated. Here, the sliding surface 27a and the rib 32, or the sliding surface 28 and the sliding surface 33 are not well engaged, and the cam mechanisms 22, 23 may not operate normally. That is, if the blocking member 21 is tilted to perform the reciprocating motion, the cam mechanisms 10 22, 23 are not well-guarded, and the linear motion is not converted into the rotational motion. Further, the outlets 2〇a to 2〇d are blocked in order, and the operation of the switching valve 17 is not determined. Further, if the blocking member 21 is tilted and reciprocated, the contact between the guide hole 29 and the shaft 34 is uneven, and it is also apparent. Produces localized wear. Therefore, by tilting the center of gravity k of the entire clogging member 21 to the center-axis 31 by the weight member 35, the inclination of the shuttle clogging member 21 can be minimized. This #, the cams 22, 23 always work normally. In other words, the linear motion of the clogging portion _ is always correctly converted into a rotational motion, and the base outlets 20a to 20d can be sequentially blocked, and the operation of the switching valve 17 is extremely stable. Further, the weight of the entire clogging member 21 is increased by the fixed weight member 35, and the specific gravity with respect to the water is increased, so that the resistance to water is less likely to be lowered when the pressure is lowered. This also stabilizes the replacement action of the blocking member 21. Further, in Fig. 8A-B, although the weight member 35 is fixed by being fitted in the claw 36, it is not necessarily fixed by this method. For example, as shown in Figs. 3 to 6, the resin projection 14 1290032 provided on the clogging member 21 may be deformed by heat to fix the weight member 35. Further, it is also possible to use a method of fixing with a screw, a method of fixing with a C-shaped lock ring or an E-shaped lock ring, a method of fixing with a split pin, or the like. Further, as a method of increasing the weight of the clogging member 21, the resin molding material may be used as the clogging member 21, and the weight-receiving member having a large metal content may be enclosed in the clogging member 21. In this case, there is no fear that the weight member will fall off during the switching operation, and it is easy to prevent the weight member from rusting, and a low-cost metal material can be used. Further, if the weight member 35 is fixed to the outside of the clogging member 21, a projection such as a claw 36 is required, and foreign matter such as food contained in the washing water may adhere to the portion, but the weight member 35 is wrapped inside. , there will be no such attachment. Further, in order to increase the weight of the clogging member 21, the clogging member 21 may be made of a metal molding material. In this case, the specific gravity of the blocking member 21 phase 15 for water becomes large, and the movement when the blocking member 21 is lowered is more stable due to the increase in weight in the small volume. Since the ratio of the base member 21 can be reduced in size, the size of the switching valve port can be reduced, and the entire device can be downsized. Further, as another method having the same effect as the case 20 in which the clogging member 21 is formed of a metal molding material, a method of forming a resin material to which a metal piece is added, a method using ceramics, and the like are used. Since the weight member 35 is provided on the surface of the disk 26 constituting the clogging member 21 on the inlet 19 side of the water passage portion 18, the operation of the clogging member 21 is stabilized. Since it is easy to process, if the 15 1290032 clogging member 21 is made of a resin molding material and the weight member 35 is made of a sheet metal material, the weight is large on the lower side, and the free fall motion caused by gravity appears stable. Actions. Further, since it is difficult to contact the weight member 35 and the opening surface 30 of the outlets 20a to 20d while maintaining high watertightness, the weight member 35 is provided in the water inlet portion 18 of the disk 26 at the inlet 19 On the side surface, it is easy to realize a structure that is easy to maintain watertightness. Further, although the clogging member 21 is hydraulically increased, generally speaking, since the water supply capacity of the washing pump 8 is extremely large, the clogging member 21 is in contact with the opening surface 30 constituting the outlets 10a to 20d, i.e., collides. Therefore, if the weight member 35 is used in this conflicting portion, the conflict sound will become louder. However, by providing the weight member 35 on the surface on the inlet 19 side of the water-passing portion 18 of the disk 26, it is possible to prevent the collision sound generated when the weight member 35 comes into contact with the opening surface 30. 15 The overall operation in the structure will be described below. The tableware is placed in the holder frame 10 and placed in the cleaning tank 4. Once the operation is started, the water supply valve 3 is opened. Then, water is supplied to the washing tank 4 through the water supply path. The supplied water is stored in the water storage unit 5 in the washing tank 4, and after detecting the water level reaching the predetermined water level by the water level sensor 6, the water supply valve 3 is closed, the water supply is completed, and the washing pump 8 is driven. In this way, the water stored in the water storage unit 5 is pressurized by the cleaning pump 8 in accordance with S?, and is sprayed from the washing nozzles 14 to 16 to the dishes in the dishware frame (7) through the switching valve 17, and then returned to the water storage. Department 5. At this point, the cleaning chestnuts continue to operate. For example, 'the operation is repeated in such a manner that it stops for 5 seconds after 25 seconds of operation. By the operation of the intermittently cleaned pump 8, the clogging portion 16 1290032 21 of the switching gap is formed, and the hydraulic force is intermittently applied, and the influence of gravity causes the vehicle to move up and down. This reciprocating motion is replaced by a k-rotation motion by the cam mechanisms 22, 23 constituting the switching valve 17. The clogging member 21 is rotated by a predetermined angle of 5 degrees at a time, and the water sent from the washing pump 8 is sequentially led to the ports 20a to 20d. Thus, water is sequentially ejected from the washing nozzles 14 to 16. For example, if the cleaning operation is performed for a total of 3 minutes, the switching valve 17 performs 60 switching operations when the cleaning operation is stopped for a second of seconds after the cleaning operation 8 is repeated. Since there are four outlets 2〇a to d in the switching bay 17, the number of switching operations of the two-time valve 17 is set to a multiple of four (generally the number of turns of the number of exits) as in the above-mentioned six times. It is possible to spray the water evenly onto the full: one placed in the bowl frame. °Using the cleaning record 8 to circulate the water for the same day, heating with a heater and warming the water. After the cleaning is completed, the water in the cleaning tank 4 is drained by the draining water (4), and the washing process is completed. By adopting the present embodiment as described above, it is possible to use one cleaning pump, and the water is sequentially injected from the cleaning nozzle by the simple switching valve Π ', which does not increase the cost and does not cause the whole device. Become bigger. In addition, since the switching valve 17 does not require a special driving source, but only intermittently operates the 2〇 pump 8', low cost can be achieved, and high reliability and long time can be obtained. In addition, the noise during operation is mainly due to cleaning. The sound of the nozzles 14 to 14 when the water sprayed on the cleaning tank 4 hits the cleaning tank 4, and the amount of water to be ejected is less than that of the water, but in the present embodiment, compared with the case where all the cleaning nozzles are simultaneously = 17 1290032, The amount of water sprayed while the spray nozzle is sequentially sprayed with water can be reduced, thereby enabling low noise. Further, in the case of water saving, since the amount of water to be circulated is small, the amount of water stored in the water discharge portion 5 can be reduced to save water, and in this embodiment, compared with the case where 5 water is sprayed simultaneously from all the cleaning nozzles, The spray nozzles spray water in sequence to reduce the amount of water that can be circulated, thereby saving water.
另外，採用本實施例，循環的水量減少，能夠使清洗 栗8的供水能力減小’能夠實現清洗泵8的低成本化和清洗 泵8的小型化，因此設備整體能夠小型化。 10 【圖式簡單説明】 第1圖是本發明的1實施例的餐具清洗機切換閥的剖視 圖。 第2圖是該餐具清洗機的剖視圖。 第3圖是該餐具清洗機的侧剖視圖。 15 第4圖A是該餐具清洗機的切換閥的堵塞部件的側视Further, according to the present embodiment, the amount of water to be circulated is reduced, and the water supply capacity of the cleaning pump 8 can be reduced. The cost of the cleaning pump 8 can be reduced and the size of the cleaning pump 8 can be reduced. Therefore, the entire apparatus can be downsized. [Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing a dishwasher cleaning valve according to a first embodiment of the present invention. Fig. 2 is a cross-sectional view of the dishwasher. Figure 3 is a side cross-sectional view of the dishwasher. 15 Fig. 4A is a side view of the blocking member of the switching valve of the dishwasher
圖，B是該餐具清洗機的切換閥的堵塞部件的上方立體圖， C是該餐具清洗機的切換閥的堵塞部件的下方立體圖。 第5圖A是該餐具清洗機的A-A線剖視圖，B是該餐具清 洗機的B-B線剖視圖，C是該餐具清洗機的c—C線剖視圖，;^ 2〇 是該餐具清洗機的D-D線剖視圖。 第6圖是該餐具清洗機的堵塞部件和開口面處於接觸 狀態的俯視圖。 第7圖是該餐具清洗機構成凸輪機構的滑動面的立體 圖。 18 1290032 第8圖A是該餐具清洗機固定了配重部件的堵塞部件的 上方立體圖，B是該餐具清洗機固定了配重部件的堵塞部件 的下方立體圖。 第9圖是現有的餐具清洗機的剖視圖。 5 第10圖是現有的餐具清洗機的側剖視圖。 【圖式之主要元件代表符號表】 1…供水路徑 20a〜20d···出口 2…餐具清洗機主體 21…堵塞部件 3…供水閥 22、23…凸輪機構 4…清洗槽 24···缺口 5…儲水部 25…平坦部 6···水位感測器 26…圓盤 7…加熱器 27a、7b…滑動面 8…清洗泵 28…滑動面 9···清洗喷嘴 29…導向孔 10…餐具框(籠） 30···開口面 11…排水泵 31…中心轴 12…前門 32…助肋 13…過濾器 33…滑動面 14〜16…清洗喷嘴 34···轴 17…切換閥 35…配重部件 18…通水部 36…礙入爪 19···入口B is a top perspective view of the clogging member of the switching valve of the dishwasher, and C is a bottom perspective view of the clogging member of the switching valve of the dishwasher. Fig. 5A is a cross-sectional view taken along line AA of the dishwasher, B is a cross-sectional view taken along line BB of the dishwasher, C is a cross-sectional view taken along line c-C of the dishwasher, and 2 is the DD line of the dishwasher Cutaway view. Fig. 6 is a plan view showing the state in which the clogging member and the opening face of the dishwasher are in contact with each other. Fig. 7 is a perspective view showing the sliding surface of the dishwasher which constitutes the cam mechanism. 18 1290032 Fig. 8A is a top perspective view of the clogging member to which the weight member is fixed in the dishwasher, and B is a bottom perspective view of the clogging member to which the weight member is fixed. Figure 9 is a cross-sectional view of a conventional dishwasher. 5 Figure 10 is a side cross-sectional view of a conventional dishwasher. [Main component representative symbol table of the drawing] 1...water supply path 20a to 20d···outlet 2...dishwasher main body 21...plugging member 3...water supply valve 22,23...cam mechanism 4...cleaning tank 24···notch 5...water storage unit 25...flat portion 6···water level sensor 26...disc 7...heater 27a,7b...sliding surface 8...washing pump 28...sliding surface 9···washing nozzle 29...guide hole 10 ...cutlery frame (cage) 30···opening surface 11...drain pump 31...center shaft 12...front door 32...helper rib 13...filter 33...sliding surface 14 to 16...washing nozzle 34···shaft 17...switching valve 35...weight member 18...water passage portion 36...blocking claws 19··· entrance
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