TWI665403B - Diaphragm valve and its assembling method - Google Patents
Diaphragm valve and its assembling method Download PDFInfo
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- TWI665403B TWI665403B TW104116914A TW104116914A TWI665403B TW I665403 B TWI665403 B TW I665403B TW 104116914 A TW104116914 A TW 104116914A TW 104116914 A TW104116914 A TW 104116914A TW I665403 B TWI665403 B TW I665403B
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Classifications
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- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/16—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
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- 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
- F16K27/0236—Diaphragm cut-off apparatus
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/04—Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Fluid-Driven Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
提供一種隔膜閥及此種隔膜閥之組裝方法，其可防止因過度鎖緊而對隔膜施加過量的負載。於設在中軸3之陽螺紋部11的上端部螺合有陰螺紋構件18。陰螺紋構件18係在中軸3到達適當之關閉位置時抵接於閥蓋5之上端，防止中軸3進一步朝下方移動。 Provided are a diaphragm valve and an assembly method of the diaphragm valve, which can prevent an excessive load from being applied to a diaphragm due to excessive locking. A female screw member 18 is screwed onto an upper end portion of the male screw portion 11 provided on the bottom bracket 3. The female screw member 18 abuts the upper end of the valve cover 5 when the bottom bracket 3 reaches a proper closed position, preventing the bottom bracket 3 from moving further downward.
Description
本發明係關於隔膜閥及其組裝方法。 The present invention relates to a diaphragm valve and a method for assembling the same.
以往，關於在生物、半導體等之處理過程中使用的閥方面，已知一種隔膜閥(專利文獻1)。第4圖顯示此種隔膜閥的一例。 Conventionally, a diaphragm valve has been known as a valve used in a process of biological, semiconductor, or the like (Patent Document 1). Fig. 4 shows an example of such a diaphragm valve.
此隔膜閥(31)具備：本體(32)，其具有流體通路(32a)(32b)；中軸(33)，其可相對於本體(32)上下移動；隔膜(34)，其伴隨中軸(33)之上下移動，開閉本體(32)之流體通路(32a)(32b)；閥蓋(35)，其設於本體(32)上側，可導引中軸(33)上下移動；隔膜按壓件(36)，其安裝於中軸(33)之下端部，將隔膜(34)朝下方按壓；及手柄(37)，其被旋轉而使中軸(33)上下移動於開放位置和關閉位置。 The diaphragm valve (31) is provided with a body (32) having a fluid passage (32a) (32b), a bottom bracket (33) which can move up and down relative to the body (32), and a diaphragm (34) which accompanies the bottom bracket (33) ) Move up and down to open and close the fluid passages (32a) (32b) of the body (32); the valve cover (35) is located on the upper side of the body (32) and can guide the central shaft (33) to move up and down; ), Which is installed at the lower end of the bottom bracket (33), and presses the diaphragm (34) downward; and the handle (37), which is rotated to move the bottom bracket (33) up and down in the open position and the closed position.
第4圖中，中軸(33)位於下方位置，藉由使隔膜(34)位於流體流入通路(32a)與液體流出通路(32b)之間，可獲得流體通路關閉狀態。 In FIG. 4, the center shaft (33) is located at a lower position, and the diaphragm (34) is located between the fluid inflow path (32 a) and the liquid outflow path (32 b) to obtain a closed state of the fluid path.
[專利文獻1]日本特開2013-117241號公報 [Patent Document 1] Japanese Patent Laid-Open No. 2013-117241
於上述第4圖所示之隔膜閥(31)的流體通路關閉狀態中，使手柄(37)進一步旋轉，即可將其鎖緊，因此，因過度鎖緊而對隔膜(34)施加過量的負載，恐有隔膜(34)破損之虞。 In the closed state of the fluid passage of the diaphragm valve (31) shown in FIG. 4 above, the handle (37) can be further locked by rotating the handle (37). Therefore, excessive pressure is applied to the diaphragm (34). The load may cause damage to the diaphragm (34).
本發明之目的在於，提供一種隔膜閥及此種隔膜閥之組裝方法，其可防止因過度鎖緊而對隔膜施加過量的負載。 An object of the present invention is to provide a diaphragm valve and a method for assembling such a diaphragm valve, which can prevent an excessive load from being applied to the diaphragm due to excessive locking.
本發明之隔膜閥具備：具有流體通路之本體、可相對於本體上下移動之中軸、伴隨中軸之上下移動而開閉本體之流體通路的隔膜、設於本體上側且可導引中軸上下移動之閥蓋、安裝於中軸下端部且將隔膜朝下方按壓之隔膜按壓件、及被旋轉而使中軸上下移動於開放位置和關閉位置之手柄，該隔膜閥之特徵在於：於設在中軸之陽螺紋部的上端部螺合有陰螺紋構件，陰螺紋構件係在當中軸到達適當之關閉位置時抵接於閥蓋之上端，以防止中軸進一步朝下方移動。 The diaphragm valve of the present invention includes a body having a fluid passage, a middle shaft that can move up and down relative to the body, a diaphragm that opens and closes the fluid passage of the body as the middle shaft moves up and down, and a valve cover that is provided on the upper side of the body and can guide the middle shaft to move up and down. A diaphragm pressing member installed on the lower end of the bottom bracket and pressing the diaphragm downward, and a handle that is rotated to move the bottom bracket up and down to an open position and a closed position. The diaphragm valve is characterized in that: A female screw member is screwed on the upper end, and the female screw member abuts the upper end of the valve cover when the middle shaft reaches a proper closed position to prevent the bottom shaft from moving further downward.
中軸之上部係比閥蓋還突出於上方，於該突出之部分上螺合有陰螺紋構件。螺合於設在中軸之陽螺紋部的上端部之陰螺紋構件，係於中軸之下方移動時，與中軸一體朝下方移動。並且，當中軸朝下方移動規定量時，陰螺紋構件之下面會抵接於閥蓋之上面。藉由使 該抵接位置與中軸已到達適當之關閉位置時的位置一致，以防止中軸超過設計位置向下方移動的情形。藉此，不會對隔膜施加超過設計以上之負載，防止因過度鎖緊而對隔膜施加過量的負載，藉此可大幅提高隔膜之耐久性。 The upper part of the bottom bracket protrudes above the valve cover, and a female screw member is screwed onto the protruding part. A female screw member screwed to the upper end portion of the male screw portion of the bottom bracket is moved below the bottom bracket and moves downwards integrally with the bottom bracket. In addition, when the bottom bracket is moved downward by a predetermined amount, the lower surface of the female screw member comes into contact with the upper surface of the valve cover. By making This abutment position is consistent with the position when the bottom bracket has reached the proper closed position to prevent the bottom bracket from moving downward beyond the design position. Thereby, a load exceeding the design is not applied to the diaphragm, and an excessive load is applied to the diaphragm due to excessive locking, thereby greatly improving the durability of the diaphragm.
隔膜閥為公知者，該隔膜閥具備：本體，其具有流體通路；中軸，其可相對於本體上下移動；隔膜，其伴隨中軸之上下移動而開閉本體之流體通路；閥蓋，其設於本體上側且可導引中軸上下移動；隔膜按壓件，其安裝於中軸下端部且將隔膜朝下方按壓；及手柄，其被旋轉而使中軸上下移動於開放位置和關閉位置。 Diaphragm valves are well-known. The diaphragm valve includes: a body having a fluid passage; a central shaft that can move up and down relative to the body; a diaphragm that opens and closes the fluid passage of the body along with the movement of the central shaft up and down; The upper side can guide the central shaft to move up and down; the diaphragm pressing member is installed at the lower end of the central shaft and presses the diaphragm downward; and the handle is rotated to move the central shaft up and down in the open position and the closed position.
本發明之隔膜閥若以公知之隔膜閥為基準，係將中軸之長度設為較長，陽螺紋部亦伴隨著延長，於該陽螺紋部之延長部分上螺合陰螺紋構件。亦即，僅藉由新追加陰螺紋構件並變更中軸，即可將以往無防過度鎖緊功能的隔膜閥變更為具有防過度鎖緊功能之隔膜閥。 If the diaphragm valve of the present invention is based on a well-known diaphragm valve, the length of the central shaft is set to be longer, and the male screw portion is also accompanied by extension. The female screw member is screwed on the extension portion of the male screw portion. That is, the diaphragm valve without the over-lock prevention function can be changed to a diaphragm valve with the over-lock prevention function by simply adding a new female screw member and changing the bottom bracket.
隔膜例如設定為由俯視呈為方形之氟樹脂(例如PTFE)製隔膜、及在氟樹脂製隔膜之上面密接地設置的俯視呈圓形的橡膠(例如丁基橡膠)製隔膜所構成者，但不限於此。 The separator is, for example, a diaphragm made of a fluororesin (for example, PTFE) having a square shape in plan view and a rubber (for example, butyl rubber) made of a diaphragm (for example, butyl rubber) having a circular shape in plan view, which is closely arranged on the fluororesin separator. Not limited to this.
陰螺紋構件例如為市售之螺帽(1或2個)，但不限於此。 The female screw member is, for example, a commercially available nut (1 or 2), but is not limited thereto.
陰螺紋構件係以在中軸已到達適當之關閉位置的位置，陰螺紋構件的下面會抵接於閥蓋的上面的位 置之方式被螺合於中軸之陽螺紋部。然後，手柄固定於中軸之上端部。於安裝了手柄後的狀態下，陰螺紋構件被手柄所覆蓋，在使用中不會有碰觸到物或手之情況，陰螺紋構件之位置不會有變化。 The female threaded member is in a position where the bottom bracket has reached the appropriate closed position. The lower part of the female threaded member will abut the upper position of the valve cover. The installation method is screwed to the male screw portion of the bottom bracket. The handle is then fixed to the upper end of the bottom bracket. In the state after the handle is installed, the female screw member is covered by the handle, and there will be no contact with objects or hands during use, and the position of the female screw member will not change.
較佳為，陰螺紋構件係由被以相對較小之扭力鎖緊之第1螺帽、及與第1螺帽重疊且被以相對較大之扭力鎖緊的第2螺帽所構成。 Preferably, the female screw member is composed of a first nut that is locked with a relatively small torque and a second nut that overlaps with the first nut and is locked with a relatively large torque.
下側的螺帽係用於規定中軸的下方位置，上側的螺帽係防止下側的螺帽鬆弛。藉由使用2個螺帽作為陰螺紋構件，能確實發揮防止陰螺紋構件鬆弛的作用。 The lower nut is used to define the lower position of the bottom bracket. The upper nut is used to prevent the lower nut from loosening. By using two nuts as the female screw member, it is possible to reliably prevent the female screw member from being loosened.
於任一者之螺帽的重疊面上設置有環狀凸部，該環狀凸部具有直徑隨著朝向前端側而變大的錐形內周面，於另一螺帽之重疊面上設置有與該凸部嵌合的環狀凹部。 An annular convex portion is provided on the overlapping surface of any one of the nuts, and the annular convex portion has a tapered inner peripheral surface whose diameter becomes larger as it goes toward the front end side, and is provided on the overlapping surface of the other nut There is an annular recessed portion that fits into the convex portion.
藉由使用2個螺帽，並設定為使螺帽彼此以凸部及凹部嵌合，可更確實實現防止陰螺紋構件鬆弛的作用。作為此種陰螺紋構件，例如可使用稱為HARDLOCK NUT(註冊商標)之防鬆螺帽，藉由使用此種防鬆螺帽，可增強防止鬆弛的功能。 By using two nuts and setting the nuts to fit with each other at a convex portion and a concave portion, the effect of preventing the female screw member from being loosened can be more reliably achieved. As such a female screw member, for example, an anti-loosening nut called HARDLOCK NUT (registered trademark) can be used, and by using such an anti-loosening nut, the function of preventing loosening can be enhanced.
本發明之隔膜閥的組裝方法，係組裝該(使用2個螺帽作為陰螺紋構件)隔膜閥之方法，其特徵在於：於使中軸位於規定位置之狀態下自中軸拆下手柄，接著鬆開第1螺帽及第2螺帽，使中軸旋轉並移動至關閉位置，然後使第1螺帽旋轉直到接觸閥蓋為止，將第2螺帽鎖緊，於此狀態下，將手柄安裝於中軸上端部。 The method for assembling a diaphragm valve of the present invention is a method for assembling the diaphragm valve (using two nuts as female screw members), which is characterized in that the handle is removed from the center shaft with the center shaft at a predetermined position, and then released Rotate the first nut and the second nut to the closed position, then rotate the first nut until it touches the bonnet, and lock the second nut. In this state, install the handle on the bottom nut. Upper end.
如此，可獲得一種可將手柄設定於中間開度(任意開度)，且可防止手柄過度鎖緊之隔膜閥。 In this way, a diaphragm valve can be obtained in which the handle can be set at an intermediate opening degree (arbitrary opening degree) and the handle can be prevented from being over-locked.
根據本發明之隔膜閥，可防止中軸超過設計位置朝下方移動的情形，藉此，可防止對隔膜施加過量的負載，可大幅提高隔膜之耐久性。 According to the diaphragm valve of the present invention, it is possible to prevent the bottom shaft from moving downward beyond the design position, thereby preventing excessive load on the diaphragm, and greatly improving the durability of the diaphragm.
1‧‧‧隔膜閥 1‧‧‧ diaphragm valve
2‧‧‧本體 2‧‧‧ Ontology
3‧‧‧中軸 3‧‧‧ bottom bracket
4‧‧‧隔膜 4‧‧‧ diaphragm
5‧‧‧閥蓋 5‧‧‧Valve cover
6‧‧‧隔膜按壓件 6‧‧‧ diaphragm pressing piece
7‧‧‧手柄 7‧‧‧Handle
11‧‧‧陽螺紋部 11‧‧‧Male thread
18‧‧‧陰螺紋構件 18‧‧‧female thread member
19‧‧‧第1螺帽 19‧‧‧The first nut
20‧‧‧第2螺帽 20‧‧‧ 2nd nut
21‧‧‧凸部 21‧‧‧ convex
21a‧‧‧內周面 21a‧‧‧Inner peripheral surface
22‧‧‧凹部 22‧‧‧ Recess
第1圖為本發明之隔膜閥的一實施形態之縱剖視圖，顯示通路關閉狀態。 Fig. 1 is a longitudinal sectional view of an embodiment of a diaphragm valve according to the present invention, showing a closed state of a passage.
第2圖為顯示第1圖之隔膜閥的通路開放狀態之縱剖視圖。 Fig. 2 is a longitudinal sectional view showing a state where the passage of the diaphragm valve of Fig. 1 is opened.
第3圖(a)~(c)為顯示組裝本發明之隔膜閥時的中途狀態之要部放大縱剖視圖。 3 (a)-(c) are enlarged longitudinal cross-sectional views of main parts showing a halfway state when the diaphragm valve of the present invention is assembled.
第4圖為以往的隔膜閥的縱剖視圖，顯示通路關閉狀態。 Fig. 4 is a longitudinal sectional view of a conventional diaphragm valve, showing a closed state of the passage.
針對本發明之實施形態，參照以下圖式作說明。在以下的說明中，上下及左右係指圖中之上下及左右。該上下及左右係權宜設置者，也可將隔膜閥自該基準狀態上下顛倒或橫向地安裝。 An embodiment of the present invention will be described with reference to the following drawings. In the following description, up, down, and left and right refer to up, down, and left and right in the drawings. The up and down and right and left are expediently installed, and the diaphragm valve can also be installed upside down or horizontally from the reference state.
第1及第2圖顯示本發明之隔膜閥的一實施形態。第1圖顯示通路關閉狀態，第2圖為顯示通路開放狀態。 1 and 2 show one embodiment of the diaphragm valve of the present invention. Fig. 1 shows the closed state of the passage, and Fig. 2 shows the open state of the passage.
隔膜閥(1)包括：本體(2)，其具有流體流入通路(2a)及流體流出通路(2b)；中軸(3)，其可相對於本體(2)上下移動；隔膜(4)，其伴隨中軸(3)之上下移動，對流體流入通路(2a)及流體流出通路(2b)之間進行開閉；圓筒狀閥蓋(5)，其設於本體(2)上側，可導引中軸(3)上下移動；隔膜按壓件(6)，其安裝於中軸(3)下端部；及手柄(7)，其被旋轉而使中軸(3)上下移動於開放位置和關閉位置。 The diaphragm valve (1) includes: a body (2), which has a fluid inflow path (2a) and a fluid outflow path (2b); a bottom bracket (3), which can move up and down relative to the body (2); a diaphragm (4), which Open and close between the fluid inflow path (2a) and the fluid outflow path (2b) as the center shaft (3) moves up and down; a cylindrical valve cover (5) is provided on the upper side of the body (2) and can guide the center shaft (3) Move up and down; the diaphragm pressing member (6) is mounted on the lower end of the bottom bracket (3); and the handle (7) is rotated to move the bottom bracket (3) up and down in the open position and the closed position.
本體(2)係形成為左右延伸之圓筒狀，中央部具有向上之圓形貫通孔(2c)。供流體自左側流入之流體流入通路(2a)及供流體自右側流出的流體流出通路(2b)，皆設為筆直管路狀，其各內側端部係在圓形貫通孔(2c)開口。 The main body (2) is formed into a cylindrical shape extending left and right, and a central portion has an upward circular through hole (2c). The fluid inflow path (2a) for the fluid to flow in from the left side and the fluid outflow path (2b) for the fluid to flow out from the right side are both straight pipe-shaped, and each inner end portion is opened in a circular through hole (2c).
中軸(3)具有陽螺紋部(11)、及與陽螺紋部(11)之下端相連的帶有台階狀之軸部(12)。與陽螺紋部(11)之上端連接地設置有固定於手柄(7)用之安裝部(13)。 The central shaft (3) has a male screw portion (11) and a stepped shaft portion (12) connected to the lower end of the male screw portion (11). A mounting portion (13) for fixing to the handle (7) is provided to be connected to the upper end of the male screw portion (11).
隔膜(4)係由俯視呈方形之PTFE製隔膜(14)、及在PTFE製隔膜(14)之上面密接設置的俯視呈圓形之丁基橡膠製隔膜(15)所構成。隔膜(4)係形成為中央部朝下方突出，於第1圖所示之通路關閉狀態下，其構成為藉由其中央部抵接於本體(2)之底面，以關閉從流體流入通路(2a)到流體流出通路(2b)之通路。因此，在本體(2)沒有支承隔膜(4)之突起(穿戴部)，本體(2)內通路變為筆直管路。 The diaphragm (4) is composed of a PTFE diaphragm (14) having a square shape in a plan view and a butyl rubber diaphragm (15) having a circular shape in a plan view which is closely adhered to the upper surface of the PTFE diaphragm (14). The diaphragm (4) is formed so that the central portion protrudes downward. In the closed state of the passage shown in FIG. 1, the diaphragm (4) is configured to abut the central portion of the diaphragm (4) to the bottom surface of the body (2) to close the fluid inflow passage ( 2a) Path to fluid outflow path (2b). Therefore, the body (2) does not have a protrusion (wearing portion) supporting the diaphragm (4), and the passage in the body (2) becomes a straight pipe.
閥蓋(5)係由上側的小徑圓筒部(16)、及一體 形成於小徑圓筒部(16)之下端且內徑及外徑皆大於小徑圓筒部(16)的下側之大徑圓筒部(17)。 The bonnet (5) is composed of a small-diameter cylindrical portion (16) on the upper side and an integral body A large-diameter cylindrical portion (17) formed at the lower end of the small-diameter cylindrical portion (16) and having an inner diameter and an outer diameter larger than the lower side of the small-diameter cylindrical portion (16).
於大徑圓筒部(17)之下端部設置有凸緣部(17a)，在隔膜(4)之周緣部被夾於此凸緣部(17a)與本體(2)的圓形貫通孔(2c)的緣部之間的狀態下，凸緣部(17a)與本體(2)藉由陽螺紋構件(省略圖示)而結合。 A flange portion (17a) is provided at the lower end of the large-diameter cylindrical portion (17), and a peripheral portion of the diaphragm (4) is sandwiched between the flange portion (17a) and a circular through hole (2) of the body (2). 2c) In a state between the edge portions, the flange portion (17a) and the body (2) are joined by a male screw member (not shown).
於小徑圓筒部(16)之內周設置有陰螺紋部(16a)，此陰螺紋部(16a)螺合有中軸(3)之陽螺紋部(11)。中軸(3)之陽螺紋部(11)具有較閥蓋(5)的上端還朝上方突出之部分(11a)，該朝上方突出之部分(11a)的上端部附近螺合有陰螺紋構件(18)。 A female screw portion (16a) is provided on the inner periphery of the small-diameter cylindrical portion (16), and the female screw portion (16a) is screwed with the male screw portion (11) of the central shaft (3). The male screw portion (11) of the bottom bracket (3) has a portion (11a) protruding upward from the upper end of the valve cover (5), and a female screw member (nearly) is screwed near the upper end portion of the upward protruding portion (11a). 18).
陰螺紋構件(18)係由相互重疊之下側的第1螺帽(19)及上側之第2螺帽(20)所構成。 The female screw member (18) is composed of a first nut (19) on the lower side and a second nut (20) on the upper side, which overlap each other.
於第2螺帽(20)之下面(重疊面)設置有環狀之凸部(21)，該環狀之凸部(21)具有直徑隨著朝下方(前端側)而變大之錐形內周面(21a)。凸部(21)之外周面，係設定為與第2螺帽(20)之其他部分的外周面相同之形狀。也可於凸部(21)設置1或複數之細縫。 A ring-shaped convex portion (21) is provided below the second nut (20) (overlapping surface), and the ring-shaped convex portion (21) has a tapered diameter which increases as it goes downward (front end side). Inner peripheral surface (21a). The outer peripheral surface of the convex portion (21) is set to have the same shape as the outer peripheral surface of other portions of the second nut (20). It is also possible to provide 1 or a plurality of fine slits in the convex portion (21).
於第1螺帽(19)之上面(重疊面)設置有環狀之凹部(22)，該環狀之凹部(22)具有直徑隨著朝上方而變小的錐形內周面(22a)且與第2螺帽(20)的環狀之凸部(21)嵌合。 An annular recessed portion (22) is provided on the upper surface (overlapping surface) of the first nut (19), and the annular recessed portion (22) has a tapered inner peripheral surface (22a) that decreases in diameter as it goes upward. And it fits with the annular convex part (21) of the 2nd nut (20).
隔膜按壓件(6)係設定為筒狀，於其上部內周面形成有陰螺紋部(6a)。帶有凸緣之圓筒狀的陽螺紋(23)嵌合於中軸(3)之帶有台階狀的軸部(12)下側之大口徑部 分，此陽螺紋(23)螺合於隔膜按壓件(6)之陰螺紋部(6a)。藉此，隔膜按壓件(6)係於將隔膜(4)之中央部朝下方按壓之狀態下固定於中軸(3)。 The diaphragm pressing member (6) is formed in a cylindrical shape, and a female screw portion (6a) is formed on the upper inner peripheral surface thereof. A cylindrical male screw (23) with a flange is fitted to a large-diameter portion on the lower side of the stepped shaft portion (12) of the center shaft (3) The male screw (23) is screwed to the female screw portion (6a) of the diaphragm pressing member (6). Thereby, the diaphragm pressing member (6) is fixed to the bottom bracket (3) in a state where the central portion of the diaphragm (4) is pressed downward.
在隔膜按壓件(6)之下部有懸吊件(24)的上部支撐，懸吊件(24)之下端部埋設於隔膜(4)的中央部。藉此，隔膜(4)之中央部係伴隨著隔膜按壓件(6)之上下移動而一體上下移動。 A lower part of the diaphragm pressing part (6) is supported by an upper part of a suspension part (24), and a lower end part of the hanging part (24) is buried in a central part of the diaphragm (4). Thereby, the center part of the diaphragm (4) moves up and down as the diaphragm pressing member (6) moves up and down.
隔膜按壓件(6)具有外周緣部(6b)，於第1圖所示的通路關閉狀態下，該外周緣部(6b)將隔膜(4)之中間部(位於中央部與外周緣部之間的部分)朝下方按壓。於第2圖所示之通路開放狀態下，該外周緣部(6b)朝上方移動，不具有將隔膜(4)之中間部向下方按壓之功能。 The diaphragm pressing member (6) has an outer peripheral edge portion (6b). When the passage is closed as shown in FIG. 1, the outer peripheral edge portion (6b) connects the middle portion of the diaphragm (4) Part of the screen). In the open state shown in Fig. 2, the outer peripheral edge portion (6b) moves upward and does not have the function of pressing the middle portion of the diaphragm (4) downward.
手柄(7)具有覆蓋閥蓋(5)之上部的圓筒狀罩體部(7a)。藉此，閥蓋(5)之上部、中軸(3)之陽螺紋部(11)及陰螺紋構件(18)，係由手柄(7)之罩體部(7a)所覆蓋，不露出於外部。 The handle (7) has a cylindrical cover body portion (7a) covering an upper portion of the valve cover (5). As a result, the upper part of the bonnet (5), the male screw part (11) and the female screw member (18) of the middle shaft (3) are covered by the cover body part (7a) of the handle (7) and are not exposed to the outside .
於閥蓋(5)之上部設置有用以目視確認開閉狀態之圓筒狀的開閉顯示構件(25)，開閉顯示構件(25)係位於閥蓋(5)與手柄(7)之罩體部(7a)之間。於第1圖所示的通路關閉狀態下，開閉顯示構件(25)之下端位置與手柄(7)之罩體部(7a)的下端位置係位於相同位置。 A cylindrical opening and closing display member (25) for visually confirming the opening and closing state is provided on the upper part of the valve cover (5), and the opening and closing display member (25) is a cover body portion (5) located on the valve cover (5) and the handle (7) ( 7a). In the closed state of the passage shown in Fig. 1, the lower end position of the opening and closing display member (25) is located at the same position as the lower end position of the cover body portion (7a) of the handle (7).
於第1圖所示的通路關閉狀態下，隔膜按壓件(6)將隔膜(4)朝下方按壓，隔膜(4)係以沿隔膜按壓件(6)之下面形狀的形式而規定其形狀。隔膜按壓件(6)之中央部，藉由懸吊件(24)而與隔膜(4)形成一體，相對地，隔 膜(4)之中間部係設成在隔膜按壓件(6)朝上方移動時可變形。 In the closed state shown in FIG. 1, the diaphragm pressing member (6) presses the diaphragm (4) downward, and the diaphragm (4) defines its shape along the shape of the lower surface of the diaphragm pressing member (6). The central part of the diaphragm pressing member (6) is integrated with the diaphragm (4) by a suspension member (24). The middle portion of the membrane (4) is configured to be deformable when the diaphragm pressing member (6) is moved upward.
因此，於第1圖中，當使手柄(7)朝開放方向旋轉時，如第2圖所示，中軸(3)朝上方移動，抵接於本體(2)之底面的隔膜(4)也朝上方移動，形成通路開放狀態，於本體(2)內形成從流體流入通路(2a)到流體流出通路(2b)之筆直的流路即無存積物之流路。於通路開放狀態下，藉由隔膜按壓件(6)朝上方移動，隔膜(4)依彈性變形，其中間部(亦即，在被閥蓋(5)之凸緣部(17a)及本體(2)的圓形貫通孔(2c)之緣部所挾持的外周緣部其與被懸吊件(24)阻止移動的中央部之間的環狀部分)是以在無拘束時的形狀上再加上恢復成凸狀之方式變形。 Therefore, in Figure 1, when the handle (7) is rotated in the open direction, as shown in Figure 2, the bottom bracket (3) moves upward, and the diaphragm (4) that abuts the bottom surface of the body (2) also Moving upward to form an open path, a straight flow path from the fluid inflow path (2a) to the fluid outflow path (2b), that is, a flow path without deposits, is formed in the body (2). In the open state of the passage, by the diaphragm pressing member (6) moving upward, the diaphragm (4) is elastically deformed, and the middle portion (that is, the flange portion (17a) of the valve cover (5) and the body ( 2) The ring-shaped portion between the outer peripheral edge portion held by the edge portion of the circular through-hole (2c) and the central portion prevented from moving by the suspension member (24)) Plus deformation in the manner of returning to convex shape.
於第2圖所示的通路開放狀態，開關顯示構件(25)係藉由使手柄(7)朝上方移動而自手柄(7)之罩體部(7a)的下端位置露出，藉此，可確認已成為開放狀態。 In the open state shown in FIG. 2, the switch display member (25) is exposed from the lower end position of the cover body portion (7 a) of the handle (7) by moving the handle (7) upward. Confirm that it is open.
於組裝該隔膜閥(1)時，隔膜(4)及安裝有隔膜按壓件(6)之中軸(3)螺合於閥蓋(5)，閥蓋(5)與本體(2)結合。然後，於安裝手柄(7)前，將陰螺紋構件(18)螺合於中軸(3)的螺紋部(11)的比閥蓋(5)的上端還突出於上方之部分(11a)。然後，藉由使開關顯示構件(25)嵌合於閥蓋(5)之上部且將手柄(7)固定於中軸(3)之安裝部(13)，而完成組裝。 When assembling the diaphragm valve (1), the diaphragm (4) and the intermediate shaft (3) on which the diaphragm pressing member (6) is installed are screwed to the valve cover (5), and the valve cover (5) is combined with the body (2). Then, before the handle (7) is mounted, the female screw member (18) is screwed onto the threaded part (11) of the bottom bracket (3), and the upper part (11a) of the upper part of the valve cover (5) protrudes. Then, the switch display member (25) is fitted to the upper portion of the valve cover (5) and the handle (7) is fixed to the mounting portion (13) of the bottom bracket (3) to complete the assembly.
要將陰螺紋構件(18)(第1螺帽(19)及第2螺帽(20))適宜進行定位，且將手柄(7)固定於適宜之位置 時，可按以下之順序適宜地進行隔膜閥(1)之組裝。 The female screw member (18) (the first nut (19) and the second nut (20)) should be properly positioned, and the handle (7) should be fixed in an appropriate position. In this case, the diaphragm valve (1) can be appropriately assembled in the following order.
1.轉動手柄(7)，使中軸(3)位於規定位置，設定為中間開度(第2圖所示之狀態)。 1. Turn the handle (7) so that the center shaft (3) is at the specified position and set to the middle opening (the state shown in Figure 2).
2.拆下手柄(7)。 2. Remove the handle (7).
3.鬆開第1螺帽(19)及第2螺帽(2)。 3. Loosen the first nut (19) and the second nut (2).
4.使中軸(3)旋轉而移動到關閉位置。該狀態顯示於第3圖(a)。為了進行上述動作，4-1.亦可藉由扭力板手轉動中軸(3)之安裝部(13)，進行鎖緊，4-2.也可安裝手柄(7)使手柄(7)旋轉，進而使中軸(3)旋轉。於後者之情況，在使中軸(3)旋轉後，再次拆下手柄(7)。 4. Rotate the center shaft (3) to move to the closed position. This state is shown in Fig. 3 (a). In order to perform the above operations, 4-1. The mounting portion (13) of the middle shaft (3) can also be rotated by a torque wrench to lock it, and 4-2. The handle (7) can also be installed to rotate the handle (7). The center shaft (3) is further rotated. In the latter case, after rotating the center shaft (3), remove the handle (7) again.
5.使第1螺帽(19)旋轉直到接觸閥蓋(5)為止。該狀態顯示於第3圖(b)。此旋轉可用手(手動鎖緊)進行。 5. Rotate the first nut (19) until it contacts the valve cover (5). This state is shown in Fig. 3 (b). This rotation can be performed by hand (manual locking).
6.將第2螺帽(20)鎖緊。該狀態顯示於第3圖(c)。此鎖緊係使用扭力板手，較第1螺帽(19)之鎖緊更牢固地進行。亦即，第1螺帽(19)被以相對較小之力矩鎖緊，第2螺帽(20)被以相對較大之力矩鎖緊。藉此，抑制第1螺帽(19)與第2螺帽(20)之相對旋轉，第1螺帽(19)及第2螺帽(20)始終一體且連同中軸(3)一起上下移動。 6. Tighten the second nut (20). This state is shown in Fig. 3 (c). This locking is performed more firmly with a torque wrench than the first nut (19). That is, the first nut (19) is locked with a relatively small torque, and the second nut (20) is locked with a relatively large torque. Thereby, the relative rotation of the first nut (19) and the second nut (20) is suppressed, and the first nut (19) and the second nut (20) are always integrated and move up and down together with the center shaft (3).
7.安裝手柄(7)。 7. Install the handle (7).
以上，完成組裝作業，之後，轉動手柄(7)，進行任意之操作。此時，於第1圖所示之隔膜閥(1)的關閉時，即使強力鎖緊手柄(7)，由於陰螺紋構件(18)作為止動器發揮作用，故可防止過度鎖緊。藉由以隔膜閥(1)之中間開度進行上述設定(第1螺帽(19)及第2螺帽(20)之鎖緊)，可獲得一種隔膜閥(1)，其能將手柄(7)設定為中 間開度(任意開度)，且可防止手柄(7)之過度鎖緊。 After the above assembly operation is completed, the handle (7) is turned to perform any operation. At this time, when the diaphragm valve (1) shown in Fig. 1 is closed, even if the handle (7) is strongly locked, the female screw member (18) functions as a stopper, so that excessive locking can be prevented. By performing the above setting with the middle opening of the diaphragm valve (1) (the locking of the first nut (19) and the second nut (20)), a diaphragm valve (1) can be obtained, which can handle the handle ( 7) Set to Medium Opening degree (arbitrary opening degree), and can prevent excessive locking of the handle (7).
作為上述陰螺紋構件(18)，可使用稱為HARDLOCK NUT(註冊商標)之防鬆螺帽。藉由使用此種防鬆螺帽，可獲得藉由錐面(21a)(22a)彼此嵌合所產生的防鬆弛功能。再者，凸部(21)之錐面(21a)相對於螺帽(19)之螺紋孔存在有微量的偏心，凹部(22)之錐面(22a)，係被設定與螺帽(20)之螺紋孔呈同心狀，藉此，可進一步提高防鬆弛功能。再者，陰螺紋構件(18)不限於HARDLOCK NUT(註冊商標)。 As the female screw member (18), a lock nut called HARDLOCK NUT (registered trademark) can be used. By using such an anti-loosening nut, it is possible to obtain an anti-loosening function produced by fitting the tapered surfaces (21a) (22a) to each other. In addition, the tapered surface (21a) of the convex portion (21) is slightly eccentric with respect to the screw hole of the nut (19), and the tapered surface (22a) of the concave portion (22) is set to the nut (20) The threaded holes are concentric, which can further improve the anti-loosening function. The female screw member (18) is not limited to HARDLOCK NUT (registered trademark).
使用該陰螺紋構件(18)之防過度鎖緊之構成可適用於各種隔膜閥，此時，關於本體、中軸、隔膜、閥蓋、隔膜按壓件及手柄之構成，可進行各種各樣之變更。 The structure for preventing over-locking using the female screw member (18) can be applied to various diaphragm valves. At this time, various changes can be made to the structure of the body, the center shaft, the diaphragm, the valve cover, the diaphragm pressing member and the handle. .
根據本發明，因為隔膜閥的隔膜之耐久性大幅提高，故能有助於提升隔膜閥之性能。 According to the present invention, since the durability of the diaphragm of the diaphragm valve is greatly improved, the performance of the diaphragm valve can be improved.
Claims (4)
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| JP2014111388A JP6410479B2 (en) | 2014-05-29 | 2014-05-29 | Diaphragm valve and assembling method thereof |
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| CN (1) | CN106415099B (en) |
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| JP7054489B2 (en) * | 2017-07-31 | 2022-04-14 | 株式会社フジキン | Valve overtightening prevention device and valve equipped with it |
| WO2019026417A1 (en) * | 2017-07-31 | 2019-02-07 | 株式会社フジキン | Gas supply system |
| KR101957935B1 (en) | 2017-10-16 | 2019-03-13 | 동아대학교 산학협력단 | Diaphragm Valve Having Dual Disk |
| CN111886430B (en) * | 2018-03-26 | 2023-01-10 | 思拓凡瑞典有限公司 | Bioprocess flow system |
| US20220186844A1 (en) * | 2019-03-29 | 2022-06-16 | Fujikin Incorporated | Diaphragm and diaphragm valve |
| CN110220027B (en) * | 2019-05-29 | 2024-06-21 | 高邮市特种紧固件厂 | Valve gland nut with anti-loosening function for valve |
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| JP2004278669A (en) * | 2003-03-17 | 2004-10-07 | Nippon Daiya Valve Co Ltd | Diaphragm valve |
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| US4634099A (en) * | 1985-05-17 | 1987-01-06 | Nupro Company | High pressure inverted bellows valve |
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| DE4302556A1 (en) * | 1993-01-29 | 1994-08-04 | Mueller Apparatebau Gmbh & Co | Diaphragm valve with closing stroke limitation |
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| JPH116516A (en) * | 1997-06-18 | 1999-01-12 | Hard Lock Kogyo Kk | Locking nut |
| CN2584963Y (en) * | 2002-12-05 | 2003-11-05 | 杨振南 | Liquefied gas valve device |
| JP2007040344A (en) * | 2005-08-01 | 2007-02-15 | Hard Lock Industry Co Ltd | Nut having removal preventing function and special self-locking double nut |
| JP2008089103A (en) * | 2006-10-03 | 2008-04-17 | Smc Corp | Manual selector valve |
| CN102278520B (en) * | 2011-07-28 | 2013-03-06 | 上海埃科燃气测控设备有限公司 | Switching device for driving and locking pilotoperated type electromagnetic gas quick action emergency valve |
| JP2013117241A (en) | 2011-12-01 | 2013-06-13 | Haruo Kamino | Diaphragm valve, diaphragm failure detecting method of diaphragm valve, and process control system |
| CN103807450A (en) * | 2013-05-22 | 2014-05-21 | 麦特汽车服务股份有限公司 | Implementation method of flow regulating valve for maximum flow limitation and blockage prevention |
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2014
- 2014-05-29 JP JP2014111388A patent/JP6410479B2/en active Active
-
2015
- 2015-05-19 CN CN201580012552.7A patent/CN106415099B/en not_active Expired - Fee Related
- 2015-05-19 WO PCT/JP2015/064260 patent/WO2015182430A1/en active Application Filing
- 2015-05-19 SG SG11201608803WA patent/SG11201608803WA/en unknown
- 2015-05-19 KR KR1020167026342A patent/KR101964505B1/en active IP Right Grant
- 2015-05-27 TW TW104116914A patent/TWI665403B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089867A1 (en) * | 2001-11-15 | 2003-05-15 | Hall Randy J. | Control valve flow adjustment device |
| JP2004278669A (en) * | 2003-03-17 | 2004-10-07 | Nippon Daiya Valve Co Ltd | Diaphragm valve |
Also Published As
| Publication number | Publication date |
|---|---|
| SG11201608803WA (en) | 2016-11-29 |
| KR101964505B1 (en) | 2019-04-01 |
| CN106415099B (en) | 2018-11-23 |
| TW201604461A (en) | 2016-02-01 |
| JP2015224765A (en) | 2015-12-14 |
| JP6410479B2 (en) | 2018-10-24 |
| WO2015182430A1 (en) | 2015-12-03 |
| KR20160119244A (en) | 2016-10-12 |
| CN106415099A (en) | 2017-02-15 |
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