TW201814191A - Weir type manual opening/closing valve capable of providing good operability and stable sealing property in rotating the handle - Google Patents
Weir type manual opening/closing valve capable of providing good operability and stable sealing property in rotating the handle Download PDFInfo
- Publication number
- TW201814191A TW201814191A TW106100811A TW106100811A TW201814191A TW 201814191 A TW201814191 A TW 201814191A TW 106100811 A TW106100811 A TW 106100811A TW 106100811 A TW106100811 A TW 106100811A TW 201814191 A TW201814191 A TW 201814191A
- Authority
- TW
- Taiwan
- Prior art keywords
- valve
- handle
- rod
- weir
- housing
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
-
- 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
-
- 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
- F16K31/60—Handles
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
本發明係有關於堰(weir)式手動開閉閥，其具有：在第一流路與第二流路之間形成有堰的閥體；形成在堰上的閥座；與該閥座抵接或離開的閥芯；閉閥時將閥芯對著閥座按壓的按壓彈簧；內置有按壓彈簧的殼體；嵌合於殼體上的手柄；以及連結於閥芯，並貫穿於殼體和手柄且以在軸方向上能夠移動的方式被保持的桿。 The present invention relates to a weir-type manual on-off valve, which includes: a valve body having a weir formed between a first flow path and a second flow path; a valve seat formed on the weir; abutting on the valve seat or The left valve core; the compression spring that presses the valve core against the valve seat when the valve is closed; the housing with the compression spring built in; the handle fitted on the housing; and the valve core connected to the housing and the handle The lever is held so as to be movable in the axial direction.
以往，作為調整液體、氣體等的流量的手動開閉閥，一直採用尤其是能夠對醫藥品製造管線中使用的水、清洗液、蒸汽等的流量進行調整並且能夠容易地使流動停止的手動開閉閥。作為這樣的手動開閉閥，公知有：通過手柄使彈簧推壓部件移動來壓縮按壓彈簧從而推壓閥芯以進行密封的第一現有例的手動開閉閥101(參照專利文獻1)和第二現有例的手動開閉閥201(參照專利文獻2)。 Conventionally, manual on-off valves that can adjust the flow rate of liquids, gases, and the like have been used. In particular, manual on-off valves that can adjust the flow rate of water, cleaning liquid, and steam used in pharmaceutical manufacturing lines and can easily stop the flow . As such a manual open / close valve, a manual open / close valve 101 of a first conventional example (see Patent Document 1) and a second conventional one are known, in which a spring pressing member is moved by a handle to compress a compression spring to compress a valve element to seal. An example of a manual on-off valve 201 (see Patent Document 2).
圖7及圖8是第一現有例的手動開閉閥101的剖視圖，圖7示出閉閥狀態，圖8示出開閥狀態。 7 and 8 are sectional views of the manual on-off valve 101 according to the first conventional example. FIG. 7 shows a closed state, and FIG. 8 shows a opened state.
如圖7所示，手動開閉閥101中，殼體105以包圍著桿104的上部桿104A及下部桿104B、按壓彈簧106以及推壓部件107的狀態固定於具有閥座102c的本體102上。在 閉閥狀態時，按壓彈簧106在配置於殼體105上端部的推壓部件107與設於上部桿104A上的鼓出部104Aa之間被壓縮，其反力經由鼓出部104Aa而將桿104和閥芯103向閥座102c側彈壓。由此，通過按壓彈簧106能夠得到將閥芯103對著閥座102c按壓的按壓力。 As shown in FIG. 7, in the manual on-off valve 101, the housing 105 is fixed to the body 102 having the valve seat 102 c in a state surrounding the upper lever 104A and the lower lever 104B of the lever 104, the pressing spring 106, and the pressing member 107. In the closed state, the pressing spring 106 is compressed between the pressing member 107 disposed on the upper end portion of the housing 105 and the bulging portion 104Aa provided on the upper rod 104A, and the reaction force urges the rod through the bulging portion 104Aa 104 and the valve element 103 are spring-pressed toward the valve seat 102c. Accordingly, the pressing force of the valve body 103 against the valve seat 102c can be obtained by the pressing spring 106.
若從該狀態使通過螺紋部111與殼體105螺紋配合的手柄108旋轉，則如圖8所示，手柄108上升並卡合於桿104的前端卡定部104Ab。然後，若進一步旋轉手柄108，則桿104經由前端卡定部104Ab而被手柄108拉起，從而使閥芯103從閥座102c離開。 When the handle 108 screwed with the housing 105 via the screw portion 111 is rotated from this state, as shown in FIG. 8, the handle 108 rises and engages with the front end locking portion 104Ab of the lever 104. Then, when the handle 108 is further rotated, the lever 104 is pulled up by the handle 108 through the front end locking portion 104Ab, and the valve element 103 is separated from the valve seat 102c.
圖9及圖10是第二現有例的手動開閉閥201的剖視圖，圖9示出開閥狀態，圖10示出閉閥狀態。 9 and 10 are cross-sectional views of the manual on-off valve 201 of the second conventional example. FIG. 9 shows a valve-opened state, and FIG. 10 shows a valve-closed state.
如圖9所示，手動開閉閥201中，在具有閥座202c的閥體202中收納有閥芯204。在閥芯204上一體地設有閥桿205。閥桿205貫穿於缸體206的蓋體208，並通過凸緣205a而防止脫落。在缸體206上設有與閥體202螺紋配合的壓閥體209，通過使該壓閥體209旋轉，能夠使缸體206一邊繞軸方向旋轉一邊沿軸方向移動。按壓彈簧207被壓縮設置於閥桿205的凸緣205a與缸體206的內壁207a之間，閉閥時，按壓彈簧207的反力經由閥桿205而將閥芯204向閥座202c側彈壓。即，通過按壓彈簧207能夠得到將閥芯204對著閥座202c按壓的按壓力。 As shown in FIG. 9, in the manual on-off valve 201, a valve body 204 is housed in a valve body 202 having a valve seat 202 c. A valve rod 204 is integrally provided on the valve body 204. The valve stem 205 penetrates the cover 208 of the cylinder 206, and is prevented from falling off by the flange 205a. The cylinder block 206 is provided with a pressure valve body 209 that is threadedly engaged with the valve body 202. By rotating the pressure valve body 209, the cylinder block 206 can be moved in the axial direction while being rotated in the axial direction. The compression spring 207 is compressed and disposed between the flange 205a of the valve stem 205 and the inner wall 207a of the cylinder 206. When the valve is closed, the reaction force of the compression spring 207 urges the valve core 204 toward the valve seat 202c via the valve stem 205. . That is, the pressing force for pressing the valve body 204 against the valve seat 202c can be obtained by the pressing spring 207.
若從圖10所示的閉閥狀態使壓閥體209旋轉，則缸體206一邊與壓閥體209一體地旋轉一邊向閥座202c的相 反側移動。閥桿205的凸緣205a卡合于蓋體208，由此閥芯204與缸體206一體地移動而從閥座202c離開。此時，由於按壓彈簧207被收納於缸體206和蓋體208之間，所以，按壓彈簧207的彈簧力並不成為使壓閥體209旋轉時的負載。 When the pressure valve body 209 is rotated from the valve closing state shown in Fig. 10, the cylinder block 206 moves to the opposite side of the valve seat 202c while rotating integrally with the pressure valve body 209. The flange 205 a of the valve stem 205 is engaged with the cover body 208, whereby the valve body 204 moves integrally with the cylinder body 206 and is separated from the valve seat 202 c. At this time, since the pressing spring 207 is housed between the cylinder 206 and the cover 208, the spring force of the pressing spring 207 does not become a load when the pressing valve body 209 is rotated.
專利文獻1：日本特開平10-122380號公報 Patent Document 1: Japanese Patent Application Laid-Open No. 10-122380
專利文獻2：日本實公平04-40058號公報 Patent Document 2: Japanese Patent Publication No. 04-40058
專利文獻3：日本特開平8-200539號公報 Patent Document 3: Japanese Unexamined Patent Publication No. 8-200539
然而，圖7及圖8所示的第一現有例的手動開閉閥101中，當使閥芯103在閉閥位置與開閥位置之間移動的情況下，由於推壓部件107抵接於殼體105，所以按壓彈簧106在推壓部件107與鼓出部104Aa之間處於被壓縮的狀態。其反力會經由鼓出部104Aa而作用於桿104、前端卡定部104Ab以及手柄108。因此，當旋轉手柄108的情況下，按壓彈簧106的反力成為負載，導致不容易轉動手柄108，操作性差。 However, in the manual on-off valve 101 of the first conventional example shown in FIGS. 7 and 8, when the valve element 103 is moved between the valve-closing position and the valve-opening position, the pressing member 107 comes into contact with the housing. Since the body 105, the pressing spring 106 is compressed between the pressing member 107 and the bulging portion 104Aa. The reaction force acts on the lever 104, the front end locking portion 104Ab, and the handle 108 via the bulging portion 104Aa. Therefore, when the handle 108 is rotated, the reaction force of the pressing spring 106 becomes a load, which makes it difficult to rotate the handle 108 and the operability is poor.
此外，圖9及圖10所示的第二現有例的手動開閉閥201中，雖然按壓彈簧207的彈簧力不成為使壓閥體209旋轉時的負載，但是由於壓閥體209與閥桿205是分離的，所以，存在閉閥時將閥芯204對著閥座202c以傾斜的狀態推壓從而密封不穩定的擔心。 In addition, in the manual on-off valve 201 of the second conventional example shown in FIGS. 9 and 10, although the spring force of the pressing spring 207 does not become a load when the pressure valve body 209 is rotated, the pressure valve body 209 and the valve stem 205 It is separated. Therefore, when the valve is closed, there is a concern that the valve body 204 is pushed in an inclined state against the valve seat 202c and the seal is unstable.
尤其是在手動開閉閥配置在醫藥品製造管線這類有原料流動的配管上的情況下，對於醫藥品製造管線，從衛生方面考慮，會定期地進行配管的滅菌作業。若使整個管線停止而進行滅菌作業，則製造效率低下。因此，滅菌作業是每隔一定的區間來進行的。為了分隔該區間而使用手動開閉閥。手動開閉閥在通常的情況下為了使原料在管線中流動而一直開閥。在進行滅菌的情況下，作業者使手動開閉閥適宜地閉閥來分隔要滅菌的區間，使蒸汽、清洗液等在該區間中流動來進行滅菌。滅菌結束後，使閉閥的手動開閉閥恢復到開閥狀態。作業者與之同樣地進行別的區域的滅菌。由此，一直尋求操作性好、能夠進行更穩定的密封的手動開閉閥。 In particular, when a manual on-off valve is arranged on a pipe having a raw material flow such as a pharmaceutical manufacturing pipeline, the pharmaceutical manufacturing pipeline is regularly sterilized in terms of hygiene. If the entire pipeline is stopped and the sterilization operation is performed, the manufacturing efficiency is low. Therefore, the sterilization operation is performed at regular intervals. In order to divide this section, a manual on-off valve is used. The manual on-off valve is always opened to make the raw material flow in the pipeline. In the case of sterilization, the operator closes the manual on-off valve appropriately to separate the section to be sterilized, and sterilizes by allowing steam, cleaning liquid, and the like to flow through the section. After the sterilization is completed, return the closed manual valve to the open state. The operator performs sterilization in other areas in the same way. For this reason, there has been a demand for a manual on-off valve that has good operability and can perform more stable sealing.
此外，在醫療業界，為了切斷配管內液體的流動，還使用具有堰(weir)的隔膜閥。該閥由於使產品傾斜著布管，所以1次側和2次側的流路在相同的高度上相連，液體能夠無滯留地流下。但是，由於是相對於彎曲面推按隔膜閥芯進行密封的特殊構造，所以為了密封需要大的力，因此導致驅動部變大。 In addition, in the medical industry, a diaphragm valve having a weir is used to cut off the flow of liquid in the piping. This valve tilts the product toward the pipe, so the primary and secondary flow paths are connected at the same height, and the liquid can flow down without retention. However, due to the special structure in which the diaphragm valve element is pushed against the curved surface and sealed, a large force is required for sealing, which results in an enlarged driving portion.
因此，如圖11及圖12所示，本申請人發明了在日本特開2016-194353中示出的堰式手動開閉閥301。圖11及圖12是堰式手動開閉閥301的剖視圖，圖11示出閉閥狀態，圖12示出開閥狀態。 Therefore, as shown in FIGS. 11 and 12, the applicant has invented the weir-type manual on-off valve 301 shown in Japanese Patent Application Laid-Open No. 2016-194353. 11 and 12 are cross-sectional views of a weir-type manual on-off valve 301. FIG. 11 shows a closed state, and FIG. 12 shows an open state.
但是，在這樣的堰式手動開閉閥301中，由於在殼體302的外周設有外螺紋部302a，在手柄303的內周設有內螺紋部303a，所以殼體302的外徑配合著按壓彈簧304等內置 物的尺寸而變大。隨之，外螺紋部302a的螺紋直徑也變大，由此內螺紋部303a與外螺紋部302a的接觸面積變大，因此，使手柄303旋轉時產生的摩擦阻力變大，存在不容易轉動手柄303而操作性變差的問題。 However, in such a weir-type manual on-off valve 301, a male screw portion 302a is provided on the outer periphery of the housing 302 and a female screw portion 303a is provided on the inner periphery of the handle 303. Therefore, the outer diameter of the housing 302 is adapted to press The size of built-in objects such as the spring 304 increases. Accordingly, the thread diameter of the externally threaded portion 302a also increases, thereby increasing the contact area between the internally threaded portion 303a and the externally threaded portion 302a. Therefore, the frictional resistance generated when the handle 303 is rotated is increased, and it is difficult to turn the handle 303 and the problem of poor operability.
本發明正是為了解決上述問題點，其目的在於提供操作性好的手動開閉閥。 The present invention aims to solve the above problems, and an object thereof is to provide a manual on-off valve with good operability.
為了解決上述課題，本發明的堰式手動開閉閥具有如下那樣的構成。 In order to solve the above-mentioned problems, the weir-type manual on-off valve of the present invention has the following configuration.
為了解決上述課題，本發明的一方式具有如下那樣的構成。 In order to solve the above-mentioned problems, one embodiment of the present invention has the following configuration.
(1)一種堰式手動開閉閥，其具有：在第一流路與第二流路之間形成有堰的閥體；形成在堰上的閥座；與該閥座抵接或離開的閥芯；閉閥時將閥芯對著閥座按壓的按壓彈簧；內置有按壓彈簧的殼體；嵌合於殼體的手柄；以及連結於閥芯，並貫穿於殼體和手柄且以在軸方向上能夠移動的方式被保持的桿，該堰式手動開閉閥的特徵在於：桿具有在軸方向上配置的第一桿和第二桿，在第一桿的外周面形成有外螺紋部，在殼體的供第一桿貫穿的貫通孔的內周面形成有與外螺紋部螺紋配合的內螺紋部。 (1) A weir-type manual on-off valve having: a valve body having a weir formed between the first flow path and the second flow path; a valve seat formed on the weir; and a valve core abutting or leaving the valve seat ; A compression spring that presses the valve core against the valve seat when closing the valve; a housing with a built-in compression spring; a handle fitted to the housing; and a valve core connected to the valve core and penetrating through the housing and the handle in the axial direction The weir type manual opening and closing valve is characterized in that the lever has a first lever and a second lever arranged in the axial direction, and an external thread portion is formed on the outer peripheral surface of the first lever. A female screw portion is formed on the inner peripheral surface of the through hole of the housing through which the first rod penetrates.
(2)在(1)所述的堰式手動開閉閥，其特徵在於：在第一桿的第二桿側貫穿有銷；在第二桿上形成有開閥時與銷卡合的卡合部。 (2) The weir-type manual on-off valve described in (1), characterized in that: a pin is penetrated on the second rod side of the first rod; and an engagement with the pin when the valve is opened is formed on the second rod. unit.
(3)在(1)或(2)所述的堰式手動開閉閥，其 特徵在於：第二桿具有：供按壓彈簧的一端抵接的活塞；和將活塞以能夠滑動的方式保持的軸承。 (3) The weir-type manual on-off valve according to (1) or (2), wherein the second lever includes: a piston for abutting one end of the pressing spring; and a bearing capable of holding the piston in a slidable manner .
(4)在(1)至(3)中任一項所述的堰式手動開閉閥，其特徵在於：具有使手柄和按壓彈簧共同轉動的共同轉動機構。 (4) The weir-type manual on-off valve according to any one of (1) to (3), further comprising a common rotation mechanism for rotating the handle and the pressing spring together.
(5)在(1)至(4)中任一項所述的堰式手動開閉閥，其特徵在於：在殼體上形成有在殼體的上表面開口的通氣孔。 (5) The weir-type manual on-off valve according to any one of (1) to (4), wherein the casing is formed with a vent hole opened on an upper surface of the casing.
(6)(1)至(5)中任一項所述的堰式手動開閉閥，其特徵在於：在殼體的外周面安裝固定有填料。 (6) The weir-type manual on-off valve according to any one of (1) to (5), wherein a filler is fixed on the outer peripheral surface of the casing.
具有上述特徵的本發明的堰式手動開閉閥發揮以下這樣的作用。 The weir-type manual on-off valve of the present invention having the above-mentioned features has the following effects.
根據上述(1)的構成，由於在第一桿的外周面形成有外螺紋部，在殼體的一部分的內周面形成有內螺紋部，因此，僅將內螺紋部設於殼體的一部分的內周面上即可，外螺紋部的螺紋直徑也能夠減小。由此，內螺紋部與外螺紋部的接觸面積變小，使手柄旋轉時產生的摩擦阻力小。由此，易於轉動手柄，操作性好。 According to the configuration of the above (1), since the male screw portion is formed on the outer peripheral surface of the first rod and the female screw portion is formed on the inner peripheral surface of a part of the housing, the female screw portion is provided only on a part of the housing. The inner peripheral surface is sufficient, and the thread diameter of the external thread portion can be reduced. This reduces the contact area between the internally threaded portion and the externally threaded portion, and reduces the frictional resistance generated when the handle is rotated. This makes it easy to turn the handle and has good operability.
根據上述(2)的構成，由於在卡合部與銷卡合的情況下，在使按壓彈簧的全長為恒定的狀態下，手柄、第一桿及按壓彈簧一體地在軸方向上移動，所以在使手柄旋轉的情況下不會施加按壓彈簧的彈簧力所引起的負載。因此，僅在從閉閥狀態開始旋轉手柄時、或是旋轉手柄而將閥芯按壓于閥座 時，對手柄施加按壓彈簧所引起的負載，除此以外的時候，對手柄不施加按壓彈簧所引起的負載，因此操作性好。 According to the configuration of (2) above, when the engaging portion is engaged with the pin, the handle, the first lever, and the pressing spring are moved in the axial direction as a whole while the total length of the pressing spring is constant. When the handle is rotated, the load caused by the spring force of the pressing spring is not applied. Therefore, the load caused by the compression spring is applied to the handle only when the handle is rotated from the closed state or when the valve core is pressed against the valve seat by rotating the handle. Otherwise, the compression spring is not applied to the handle. Induced load, so operability is good.
根據上述(3)的構成，即使按壓彈簧和活塞傾斜，由於有軸承所以也不會有損活塞的滑動性，因此能夠維持密封力的穩定性。 According to the configuration of the above (3), even if the pressing spring and the piston are inclined, the sliding property of the piston is not impaired due to the presence of the bearing, so that the stability of the sealing force can be maintained.
根據上述(4)的構成，當使手柄旋轉時，經由第一桿、第二桿和活塞，按壓彈簧與手柄一體地旋轉。按壓彈簧在手柄與設於第二桿上的活塞之間以頂著的狀態被配置，因此手柄與第二桿一體地旋轉。因此，能夠減輕使手柄旋轉時的負載。 According to the configuration of (4), when the handle is rotated, the pressing spring is integrally rotated with the handle via the first rod, the second rod, and the piston. Since the pressing spring is disposed in an abutting state between the handle and the piston provided on the second rod, the handle and the second rod rotate integrally. Therefore, it is possible to reduce the load when the handle is rotated.
另一方面，第一桿連結於第二桿，並以在軸方向上能夠往復直線運動的方式配置。此外，第二桿以容許與第一桿一起以軸線為中心旋轉的方式連結於第一桿。壓縮件被鍵槽限制與殼體的相對旋轉。因此，即使第一桿與手柄一體地旋轉，壓縮件也不旋轉，因此能夠防止閥芯磨損。在第二桿的前端面與壓縮件的滑動面之間配置滑動環，從而減輕了第二桿的滑動阻力。由此，能夠減輕使手柄旋轉時的負載，能夠使操作性好，還能夠抑制閥芯的磨損，維持穩定的密封。 On the other hand, the first lever is connected to the second lever, and is arranged so as to be capable of rectilinear movement in the axial direction. In addition, the second rod is connected to the first rod so as to allow rotation with the first rod about the axis. The compression member is restricted from rotating relative to the housing by the key groove. Therefore, even if the first lever rotates integrally with the handle, the compression member does not rotate, so that the valve element can be prevented from abrasion. A sliding ring is arranged between the front end surface of the second rod and the sliding surface of the compression member, thereby reducing the sliding resistance of the second rod. As a result, the load when the handle is rotated can be reduced, the operability can be improved, the wear of the valve body can be suppressed, and a stable seal can be maintained.
根據上述(5)的構成，由於在殼體上形成有在殼體的上表面開口的通氣孔，所以當使手柄旋轉時，手柄與殼體上部的上表面之間的空間的容積變化，與周圍的氣壓產生壓差，該差越大，轉動手柄的負載越大，但是通過在殼體的上表面開口而與殼體和手柄之間的空間連通的通氣孔能夠減小該差，從而能夠減輕使手柄旋轉的力。由此，能夠減輕使手柄旋 轉時的負載，能夠使操作性好。 According to the configuration of (5) above, the housing is formed with a vent hole opened on the upper surface of the housing, so when the handle is rotated, the volume of the space between the handle and the upper surface of the upper portion of the housing changes, and The surrounding air pressure produces a pressure difference. The larger the difference, the greater the load on the handle. However, the vent hole communicating with the space between the housing and the handle by opening on the upper surface of the housing can reduce the difference, so that Reduce the force that rotates the handle. Accordingly, the load when the handle is rotated can be reduced, and the operability can be improved.
根據上述(6)的構成，由於在殼體與手柄之間配置有填料，所以不存在清洗開閉閥時使用的過氧化氫水溶液等進入到殼體的內部、或是潤滑脂(grease)向外洩漏的情況。 According to the configuration of the above (6), since the packing is arranged between the case and the handle, there is no hydrogen peroxide aqueous solution or the like used for cleaning the on-off valve to enter the inside of the case, or grease outwards. The situation of the leak.
1‧‧‧堰式手動開閉閥 1‧‧‧ weir type manual opening and closing valve
2‧‧‧手柄 2‧‧‧handle
3‧‧‧殼體 3‧‧‧shell
31‧‧‧***部 31‧‧‧ Insertion
31a‧‧‧內螺紋部 31a‧‧‧Internal thread
31c‧‧‧通氣孔 31c‧‧‧Vent
4‧‧‧閥體 4‧‧‧ valve body
4a‧‧‧第一流路 4a‧‧‧First Stream
4b‧‧‧第二流路 4b‧‧‧Second stream
43‧‧‧堰 43‧‧‧ weir
43a‧‧‧閥座 43a‧‧‧Valve seat
5‧‧‧隔膜閥芯 5‧‧‧ Diaphragm spool
6‧‧‧第一桿 6‧‧‧ first shot
6a‧‧‧外螺紋部 6a‧‧‧External thread
7‧‧‧銷 7‧‧‧pin
8‧‧‧第二桿 8‧‧‧ second shot
9‧‧‧按壓彈簧 9‧‧‧Press spring
10‧‧‧活塞 10‧‧‧ Pistons
12‧‧‧填料 12‧‧‧ filler
13‧‧‧軸承 13‧‧‧bearing
圖1是本實施形態的堰式手動開閉閥的剖視圖，示出手柄處於第一位置的閉閥狀態。 FIG. 1 is a cross-sectional view of a weir-type manual on-off valve according to the present embodiment, and shows a closed state with the handle in a first position.
圖2是圖1的AA剖視圖。 FIG. 2 is a cross-sectional view taken along AA in FIG. 1.
圖3是堰式手動開閉閥的剖視圖，示出手柄處於第二位置的卡合狀態。 3 is a cross-sectional view of a weir-type manual on-off valve, showing an engaged state of a handle in a second position.
圖4是圖3的BB剖視圖。 FIG. 4 is a cross-sectional view taken along BB of FIG. 3.
圖5是堰式手動開閉閥的剖視圖，示出手柄處於第三位置的開閥狀態。 5 is a cross-sectional view of a weir-type manual opening and closing valve, showing the valve opening state with the handle in a third position.
圖6是圖5的CC剖視圖。 FIG. 6 is a CC sectional view of FIG. 5.
圖7是第一現有例的手動開閉閥的剖視圖，示出閉閥狀態。 7 is a cross-sectional view of a manual on-off valve of a first conventional example, showing a closed state of the valve.
圖8是第一現有例的手動開閉閥的剖視圖，示出開閥狀態。 FIG. 8 is a cross-sectional view of a manual on-off valve of a first conventional example, showing a valve-opening state.
圖9是第二現有例的手動開閉閥的剖視圖，示出開閥狀態。 9 is a cross-sectional view of a manual on-off valve of a second conventional example, showing a valve-opening state.
圖10是第二現有例的手動開閉閥的剖視圖，示出閉閥狀態。 10 is a cross-sectional view of a manual on-off valve of a second conventional example, showing a closed state of the valve.
圖11是日本特開2016-194353的堰式手動開閉閥的剖視圖，示出閉閥狀態。 11 is a cross-sectional view of a weir-type manual on-off valve of Japanese Patent Application Laid-Open No. 2016-194353, showing a closed state.
圖12是日本特開2016-194353的堰式手動開閉閥的剖視圖，示出開閥狀態。 FIG. 12 is a cross-sectional view of a weir-type manual on-off valve of Japanese Patent Application Laid-Open No. 2016-194353, showing a valve opening state.
關於本發明的一實施形態中的堰式手動開閉閥，一邊參照圖面一邊在以下詳細地說明。 The weir-type manual on-off valve in one embodiment of the present invention will be described in detail below with reference to the drawings.
(堰式手動開閉閥的構成) (Construction of weir-type manual on-off valve)
利用圖1至圖6對本實施形態的堰式手動開閉閥1的構造進行說明。圖1是堰式手動開閉閥1的剖視圖，示出手柄2處於第一位置的閉閥狀態。圖2是圖1的AA剖視圖。圖3是堰式手動開閉閥1的剖視圖，示出手柄2處於第二位置的卡合狀態。圖4是圖3的BB剖視圖。圖5是堰式手動開閉閥1的剖視圖，示出手柄2處於第三位置的開閥狀態。圖6示出圖5的CC剖視圖。 The structure of the weir-type manual on-off valve 1 according to this embodiment will be described with reference to FIGS. 1 to 6. FIG. 1 is a cross-sectional view of a weir-type manual on-off valve 1, showing a closed state of the handle 2 in a first position. FIG. 2 is a cross-sectional view taken along AA in FIG. 1. FIG. 3 is a cross-sectional view of a weir-type manual on-off valve 1, showing the engaged state of the handle 2 in the second position. FIG. 4 is a cross-sectional view taken along BB of FIG. 3. FIG. 5 is a cross-sectional view of a weir-type manual on-off valve 1, showing the valve-opened state with the handle 2 in a third position. FIG. 6 shows a CC sectional view of FIG. 5.
如圖1所示，堰式手動開閉閥1中，在閥體4上隔著橡膠制的隔膜閥芯5(閥芯的一例)安裝有殼體3，在該殼體3上嵌合有手柄2。 As shown in FIG. 1, in the weir-type manual on-off valve 1, a casing 3 is attached to the valve body 4 via a rubber diaphragm valve element 5 (an example of the valve element), and a handle is fitted to the casing 3. 2.
殼體3呈筒形狀。殼體3的上部具有嵌合在杯形的手柄2上的***部31。在***部31的外表面安裝固定有填料12，填料12用於防止清洗開閉閥時使用的過氧化氫水溶液等進入到殼體3的內部、或是防止潤滑脂向外洩漏。在填料12的緊挨著的下方形成有呼吸孔31b。***部31被設為直徑比殼體3的下部(大直徑部)小的小直徑部，作為該小直徑部與大直徑部的邊界，在殼體3的外周形成有層差部3a。在殼體3的***部31的上部形成有供第一桿6貫穿的貫通孔31d，在該貫通孔31d的內周面形成有與第一桿6的外螺紋部6a螺紋配合的內螺紋部31a。在***部31的上部形成有通氣孔31c，該 通氣孔31c在上表面開口，連通於手柄2與殼體3上部之間的空間。 The casing 3 has a cylindrical shape. An upper portion of the housing 3 has an insertion portion 31 fitted into the cup-shaped handle 2. A filler 12 is mounted and fixed on the outer surface of the insertion portion 31. The filler 12 is used to prevent the hydrogen peroxide solution and the like used in cleaning the on-off valve from entering the inside of the housing 3 or to prevent grease from leaking outward. A breathing hole 31 b is formed immediately below the filler 12. The insertion portion 31 is a small-diameter portion having a smaller diameter than the lower portion (large-diameter portion) of the case 3. As a boundary between the small-diameter portion and the large-diameter portion, a step portion 3 a is formed on the outer periphery of the case 3. A through hole 31d through which the first rod 6 penetrates is formed in the upper portion of the insertion portion 31 of the housing 3, and an internal thread portion that is screwed into the external thread portion 6a of the first rod 6 is formed on the inner peripheral surface of the through hole 31d 31a. A vent hole 31c is formed in the upper portion of the insertion portion 31, and the vent hole 31c is opened on the upper surface and communicates with a space between the handle 2 and the upper portion of the housing 3.
第一桿6的上端通過固定部件14固定在手柄2的上表面。第一桿6經由第二桿8和壓縮件11而連結於隔膜閥芯5，並以在軸方向上能夠移動的方式被保持。在第一桿6的上部外周面形成有與殼體3的內螺紋部31a螺紋配合的外螺紋部6a。第一桿6的下部與上部相比直徑大，形成有層差部6b。第一桿6的下部在圖1的左右方向上分成兩股，並形成有貫通部61，銷7以相對於第一桿6的軸方向正交的方式貫通該貫通部61。按壓彈簧9的上端抵接在第一桿6的下端。按壓彈簧9始終將隔膜閥芯5向閥座43a側彈壓。 The upper end of the first rod 6 is fixed to the upper surface of the handle 2 by a fixing member 14. The first rod 6 is connected to the diaphragm valve element 5 via the second rod 8 and the compression member 11, and is held so as to be movable in the axial direction. An externally threaded portion 6 a is formed on the outer peripheral surface of the upper portion of the first rod 6 to be engaged with the internally threaded portion 31 a of the housing 3. The lower portion of the first rod 6 has a larger diameter than the upper portion, and a stepped portion 6 b is formed. The lower part of the first lever 6 is divided into two in the left-right direction in FIG. 1, and a penetration portion 61 is formed. The pin 7 penetrates the penetration portion 61 so as to be orthogonal to the axial direction of the first lever 6. The upper end of the pressing spring 9 abuts on the lower end of the first lever 6. The pressing spring 9 always urges the diaphragm valve element 5 toward the valve seat 43a.
在第一桿6的分成兩股的貫通部61之間配置有第二桿8的卡合部81。如圖2所示，在第二桿8的卡合部81中形成有供銷7貫穿的長孔形的卡合孔81a。在第二桿8的中央附近的周圍配置有活塞10。按壓彈簧9的下端抵接在活塞10的上表面。在活塞10與殼體3之間配置有軸承13。活塞10被軸承13保持且能夠滑動。第二桿8的下部配置有壓縮件11。在壓縮件11的外周面形成有向徑向外側突出的凸部，另一方面，在殼體3的大直徑部的內周面形成有供壓縮件11的凸部卡合的鍵槽3b。由此，通過鍵槽3b，壓縮件11與殼體3之間的相對旋轉受到限制。此外，壓縮件11在其底部與隔膜閥芯5卡合。隔膜閥芯5的周緣部被殼體3與閥體4夾持。在第二桿8的位於閥座43a側的端面上配置有滑動環15。通過滑動環15能夠減輕第二桿8相對於壓縮件11旋轉時的滑動阻力。 An engaging portion 81 of the second rod 8 is disposed between the divided through portions 61 of the first rod 6. As shown in FIG. 2, a long hole-shaped engaging hole 81 a is formed in the engaging portion 81 of the second lever 8 for the pin 7 to pass through. A piston 10 is arranged around the center of the second rod 8. The lower end of the pressing spring 9 is in contact with the upper surface of the piston 10. A bearing 13 is arranged between the piston 10 and the housing 3. The piston 10 is held by a bearing 13 and can slide. A compression member 11 is disposed below the second rod 8. A convex portion protruding radially outward is formed on the outer peripheral surface of the compression member 11, and a key groove 3 b is formed on the inner peripheral surface of the large-diameter portion of the housing 3 to engage the convex portion of the compression member 11. Accordingly, the relative rotation between the compression member 11 and the housing 3 is restricted by the key groove 3b. In addition, the compression member 11 is engaged with the diaphragm valve body 5 at the bottom thereof. The peripheral edge portion of the diaphragm valve body 5 is sandwiched between the housing 3 and the valve body 4. A slide ring 15 is disposed on an end surface of the second rod 8 on the valve seat 43a side. The sliding ring 15 can reduce the sliding resistance when the second lever 8 rotates relative to the compression member 11.
在閥體4中，同軸地形成有第一流路4a和第二流路4b。在第一流路4a及第二流路4b開口的、閥體4的兩端部，沿著各流路的外周分別設有用於與其他配管連接的凸緣41、42。在第一流路4a與第二流路4b之間形成有堰43。堰43以與閥體4的軸線正交的方式以直線狀設置。在堰43上設有供隔膜閥芯5抵接或離開的閥座43a。如圖2所示，將閥座43a形成為向著殼體3的相反側以圓弧狀彎曲，從而來確保流路。 In the valve body 4, a first flow path 4a and a second flow path 4b are formed coaxially. On both ends of the valve body 4 which are open in the first flow path 4a and the second flow path 4b, flanges 41 and 42 for connecting to other pipes are provided along the outer periphery of each flow path. A weir 43 is formed between the first flow path 4a and the second flow path 4b. The weir 43 is provided linearly so as to be orthogonal to the axis of the valve body 4. The weir 43 is provided with a valve seat 43 a for the diaphragm valve core 5 to abut or leave. As shown in FIG. 2, the valve seat 43 a is formed to be curved in an arc shape toward the opposite side of the housing 3 to ensure a flow path.
(堰式手動開閉閥的作用) (The role of weir-type manual on-off valve)
下面，對本實施形態的堰式手動開閉閥1開閥時的動作進行說明。 The operation of the weir-type manual on-off valve 1 according to this embodiment when the valve is opened will be described below.
在從閉閥狀態開閥的情況下，旋轉處於圖1所示第一位置的手柄2，進行第一桿6的外螺紋部6a與殼體3的內螺紋部31a的螺紋進給。手柄2沿著殼體3向閥座43a的相反方向(閥座反方向、圖中上方)移動，使手柄2上升到圖3所示的第二位置。當使手柄2上升到第二位置時，第二桿8的卡合孔81a的一端(圖3中的上端)與第一桿6的銷7卡合。按壓彈簧9一邊經由活塞10和第二桿8將隔膜閥芯5向閥座43a方向彈壓，一邊隨著手柄2的移動伸展成為一定的長度(全長L2)。 When the valve is opened from the closed state, the handle 2 in the first position shown in FIG. 1 is rotated to perform thread feeding of the externally threaded portion 6 a of the first rod 6 and the internally threaded portion 31 a of the housing 3. The handle 2 is moved along the housing 3 in the opposite direction of the valve seat 43a (the opposite direction of the valve seat, upward in the figure), so that the handle 2 is raised to the second position shown in FIG. When the handle 2 is raised to the second position, one end (the upper end in FIG. 3) of the engaging hole 81 a of the second lever 8 is engaged with the pin 7 of the first lever 6. The pressure spring 9 pushes the diaphragm valve element 5 in the direction of the valve seat 43a via the piston 10 and the second rod 8, and stretches to a certain length (full length L2) as the handle 2 moves.
進一步旋轉手柄2進行螺紋進給，使手柄2沿著閥座反方向(上方)上升到圖5所示的第三位置。於是，銷7與卡合孔81a卡合，因此第二桿8經由第一桿6而被手柄2拉起。這樣，第二桿8與手柄2一體地沿著閥座反方向移動，從而第一桿6的層差部6b與殼體3抵接。由此，第一桿6和第 二桿8的位置以機械結構的方式確定。由於活塞10以在軸方向上能夠滑動的方式被軸承13保持，所以開閥時，第二桿8能夠在軸方向上穩定地移動。由於在活塞10的外周設置軸承13，所以不需要第二桿8的軸承部分，因此能夠抑制堰式手動開閉閥1的整體高度。這樣，使隔膜閥芯5的中央部從閥座43a離開。 The handle 2 is further rotated for thread feeding, so that the handle 2 is raised in the opposite direction (upward) of the valve seat to a third position shown in FIG. 5. Then, since the pin 7 is engaged with the engaging hole 81 a, the second lever 8 is pulled up by the handle 2 via the first lever 6. In this way, the second lever 8 moves integrally with the handle 2 in the opposite direction of the valve seat, so that the stepped portion 6 b of the first lever 6 comes into contact with the housing 3. Thereby, the positions of the first lever 6 and the second lever 8 are determined mechanically. Since the piston 10 is held by the bearing 13 so as to be slidable in the axial direction, the second rod 8 can be stably moved in the axial direction when the valve is opened. Since the bearing 13 is provided on the outer periphery of the piston 10, the bearing portion of the second rod 8 is not required, and the overall height of the weir-type manual on-off valve 1 can be suppressed. In this way, the center portion of the diaphragm valve body 5 is separated from the valve seat 43a.
下面，對本實施形態的堰式手動開閉閥1閉閥時的動作進行說明。 Next, the operation when the weir-type manual on-off valve 1 of this embodiment is closed will be described.
在從開閥狀態閉閥時，將圖5所示的處於第三位置的手柄2向開閥時的反方向轉動，使直到第一桿6的外螺紋部6a的上部都與殼體3的內螺紋部31a螺紋配合，手柄2移動到圖1所示的第一位置。此時，手柄2的內表面與殼體3的上端面抵接。由此，第一桿6和第二桿8的位置以機械結構的方式確定。此時，按壓彈簧9在第一桿6與活塞10之間被壓縮成全長L1(L1<L2)。按壓彈簧9的彈簧力經由活塞10和第二桿8而將隔膜閥芯5向閥座43a方向彈壓，從而將隔膜閥芯5對著閥座43a按壓。 When the valve is closed from the open state, the handle 2 in the third position shown in FIG. 5 is turned in the reverse direction when the valve is opened, so that the upper part of the external thread portion 6 a up to the first rod 6 is connected to the housing 3. The internally threaded portion 31a is threadedly engaged, and the handle 2 is moved to the first position shown in FIG. 1. At this time, the inner surface of the handle 2 is in contact with the upper end surface of the housing 3. As a result, the positions of the first rod 6 and the second rod 8 are determined mechanically. At this time, the pressing spring 9 is compressed between the first rod 6 and the piston 10 to a full length L1 (L1 <L2). The spring force of the pressing spring 9 pushes the diaphragm valve element 5 in the direction of the valve seat 43a via the piston 10 and the second rod 8, thereby pressing the diaphragm valve element 5 against the valve seat 43a.
如圖1所示，閉閥狀態時，第二桿8的卡合孔81a與第一桿6的銷7不卡合。由此，隔膜閥芯5對著閥座43a不被過多地推按，能夠均勻地使流路密閉。此時，由於活塞10以在軸方向上能夠滑動的方式被軸承13保持，所以在開閉閥動作時，第二桿8能夠在軸方向上穩定地移動。由此，在閉閥時，能夠使隔膜閥芯5均勻地抵接於閥座43a，從而能夠進行穩定的密封。 As shown in FIG. 1, in the valve-closed state, the engaging hole 81 a of the second lever 8 is not engaged with the pin 7 of the first lever 6. Thereby, the diaphragm valve body 5 is not pushed too much against the valve seat 43a, and a flow path can be sealed uniformly. At this time, since the piston 10 is held by the bearing 13 so as to be slidable in the axial direction, the second rod 8 can be stably moved in the axial direction when the on-off valve is operated. Accordingly, when the valve is closed, the diaphragm valve body 5 can be brought into uniform contact with the valve seat 43a, and stable sealing can be performed.
下面，關於本實施形態的堰式手動開閉閥1的作用效果，將圖7及圖8所示的第一現有例的手動開閉閥101、圖9及圖10所示的第二現有例的手動開閉閥201、圖11及圖12所示的本申請人先前發明的堰式手動開閉閥301相比較著來進行說明。 Next, regarding the effect of the weir-type manual on-off valve 1 according to this embodiment, the manual on-off valve 101 of the first conventional example shown in FIGS. 7 and 8 and the manual operation of the second conventional example shown in FIGS. 9 and 10 will be described. The weir-type manual on-off valve 301 invented by the applicant previously shown in the on-off valve 201, FIGS. 11 and 12 will be described in comparison.
在圖7及圖8所示的第一現有例的手動開閉閥101中，當使閥芯103在閉閥位置與開閥位置之間移動的情況下，由於推壓部件107抵接於殼體105，所以按壓彈簧106成為在推壓部件107與鼓出部104Aa之間被壓縮的狀態。其反力經由鼓出部104Aa而作用於桿104、前端卡定部104Ab以及手柄108。因此，當使手柄108旋轉的情況下，按壓彈簧106的反力成為負載，從而手柄108不容易轉動。 In the manual on-off valve 101 of the first conventional example shown in FIGS. 7 and 8, when the valve element 103 is moved between the valve-closing position and the valve-opening position, the pressing member 107 comes into contact with the housing. 105, the pressing spring 106 is compressed between the pressing member 107 and the bulging portion 104Aa. The reaction force acts on the lever 104, the front end locking portion 104Ab, and the handle 108 via the bulging portion 104Aa. Therefore, when the handle 108 is rotated, the reaction force of the pressing spring 106 becomes a load, and the handle 108 is difficult to rotate.
此外，關於圖9及圖10所示的第二現有例的手動開閉閥201，雖然按壓彈簧207的彈簧力不是使壓閥體209旋轉時的負載，但是由於壓閥體209與閥桿205分離，所以，存在閉閥時將閥芯204對著閥座202c以傾斜的狀態推按從而密封不穩定的擔心。再者，在落座後的旋轉中，由於按壓彈簧207的兩端是摩擦滑動，所以壓閥體209不容易轉動。 In addition, regarding the manual on-off valve 201 of the second conventional example shown in FIGS. 9 and 10, although the spring force of the pressing spring 207 is not a load when the pressure valve body 209 is rotated, the pressure valve body 209 is separated from the valve stem 205. Therefore, when the valve is closed, there is a concern that the valve body 204 is pushed in an inclined state against the valve seat 202c to cause unstable sealing. In addition, during rotation after seating, since both ends of the pressing spring 207 are frictionally sliding, the pressure valve body 209 is difficult to rotate.
但是，在本實施形態的堰式手動開閉閥1中，如圖1所示，當第二桿8的卡合孔81a與形成於第一桿6的銷7之間的卡合解除後，按壓彈簧9在第一桿6與活塞10之間被壓縮成全長L1。按壓彈簧9的彈簧力經由第二桿8將隔膜閥芯5向閥座43a方向彈壓，將隔膜閥芯5對著閥座43a按壓。由此，隔膜閥芯5對著閥座43a不被過多地推按，能夠均勻地 密封。 However, in the weir-type manual on-off valve 1 of the present embodiment, as shown in FIG. 1, after the engagement between the engaging hole 81 a of the second lever 8 and the pin 7 formed on the first lever 6 is released, it is pressed. The spring 9 is compressed between the first rod 6 and the piston 10 to a full length L1. The spring force of the pressing spring 9 urges the diaphragm valve element 5 in the direction of the valve seat 43a via the second rod 8, and presses the diaphragm valve element 5 against the valve seat 43a. Thereby, the diaphragm valve body 5 can be uniformly sealed without being pushed too much against the valve seat 43a.
在從閉閥狀態開閥的情況下，使手柄2旋轉時，手柄2沿著殼體3向閥座反方向移動。在卡合孔81a卡合於銷7之前，按壓彈簧9一邊經由活塞10將第二桿8和隔膜閥芯5向閥座43a方向彈壓，一邊隨著手柄2的移動伸展為全長L2。 When opening the valve from the closed state, when the handle 2 is rotated, the handle 2 moves along the housing 3 in the opposite direction to the valve seat. Before the engaging hole 81 a is engaged with the pin 7, the pressing spring 9 stretches the second rod 8 and the diaphragm valve core 5 in the direction of the valve seat 43 a via the piston 10, and extends to the full length L2 as the handle 2 moves.
當手柄2向閥座反方向移動而卡合孔81a與銷7卡合後，第二桿8經由銷7而與手柄2一體地向閥座反方向移動。在該情況下，由於第一桿6與活塞10之間的距離是恒定的，所以，在使按壓彈簧9的全長L2為恒定的狀態下，手柄2經由第二桿8將隔膜閥芯5向閥座反方向拉起，使之從閥座43a離開。 After the handle 2 moves in the opposite direction of the valve seat and the engaging hole 81 a is engaged with the pin 7, the second rod 8 moves integrally with the handle 2 in the opposite direction of the valve seat through the pin 7. In this case, since the distance between the first rod 6 and the piston 10 is constant, in a state where the entire length L2 of the pressing spring 9 is constant, the handle 2 moves the diaphragm valve element 5 toward the second rod 8 through the second rod 8. The valve seat is pulled up in the opposite direction to separate it from the valve seat 43a.
在從開閥狀態閉閥的情況下，手柄2被向反方向轉動，向著閥座43a方向移動。由於按壓彈簧9在第一桿6與活塞10之間以頂著的狀態配置，所以，第一桿6在使銷7與第二桿8的卡合孔81a卡合的狀態下與手柄2一體地向閥座43a方向移動。因此，第一桿6與活塞10之間的距離是恒定的，按壓彈簧9的全長L2是恒定的。 When the valve is closed from the open state, the handle 2 is turned in the opposite direction and moved toward the valve seat 43a. Since the pressing spring 9 is disposed in an abutting state between the first rod 6 and the piston 10, the first rod 6 is integrated with the handle 2 in a state where the pin 7 is engaged with the engaging hole 81a of the second rod 8. The ground moves in the direction of the valve seat 43a. Therefore, the distance between the first rod 6 and the piston 10 is constant, and the total length L2 of the pressing spring 9 is constant.
當隔膜閥芯5抵接於閥座43a後，手柄2一邊壓縮按壓彈簧9一邊向閥座43a方向移動，解除卡合孔81a與銷7的卡合。按壓彈簧9的彈簧力經由活塞10而將第二桿8和隔膜閥芯5向閥座43a方向彈壓，將隔膜閥芯5對著閥座43a按壓。 After the diaphragm valve element 5 abuts on the valve seat 43a, the handle 2 moves in the direction of the valve seat 43a while compressing the pressing spring 9, and the engagement between the engaging hole 81a and the pin 7 is released. The spring force of the pressing spring 9 urges the second rod 8 and the diaphragm valve element 5 in the direction of the valve seat 43a via the piston 10, and presses the diaphragm valve element 5 against the valve seat 43a.
這樣，在解除卡合孔81a與銷7的卡合的情況下，由於以將按壓彈簧9在第一桿6與活塞10之間被壓縮成全長 L1的狀態使手柄2旋轉，所以在使手柄2旋轉的情況下，會施加按壓彈簧9的彈簧力所引起的負載。 In this way, when the engagement between the engaging hole 81a and the pin 7 is released, the handle 2 is rotated in a state where the pressing spring 9 is compressed between the first rod 6 and the piston 10 to the full length L1, so the handle is made 2 When rotating, a load due to the spring force of the pressing spring 9 is applied.
而在卡合孔81a與銷7卡合的情況下，由於在使按壓彈簧9的全長L2為恒定的狀態，手柄2、第一桿6及按壓彈簧9一體地在軸方向上移動，所以在使手柄2旋轉的情況下，不會施加按壓彈簧9的彈簧力所引起的負載。因此，僅在從閉閥狀態使手柄2旋轉時、或使手柄2旋轉而將隔膜閥芯5按壓於閥座43a時，對手柄2施加按壓彈簧9所引起的負載，除此以外的時候，對手柄2不施加按壓彈簧9所引起的負載，因此操作性好。 On the other hand, when the engaging hole 81a is engaged with the pin 7, the handle 2, the first lever 6, and the pressing spring 9 are moved in the axial direction as a whole in a state where the entire length L2 of the pressing spring 9 is constant. When the handle 2 is rotated, a load caused by the spring force of the pressing spring 9 is not applied. Therefore, only when the handle 2 is rotated from the closed state, or when the diaphragm 2 is pressed against the valve seat 43a by rotating the handle 2, the load caused by the pressing spring 9 is applied to the handle 2, otherwise, Since the handle 2 is not subjected to a load caused by the pressing spring 9, the handleability is good.
另外，由於採用開閥時卡合孔81a與銷7卡合而將第二桿8拉起的構造，所以存在產品高度變大的問題，但是在本發明中，由於不是通過桿而是通過活塞10來支承滑動部，所以能夠將產品高度抑制得較低。 In addition, since the engaging hole 81a is engaged with the pin 7 when the valve is opened, and the second rod 8 is pulled up, there is a problem that the height of the product becomes large. However, in the present invention, since the rod is not passed through the rod but through the piston 10 to support the sliding portion, so the product height can be suppressed to a low level.
此外，在本申請人先前發明的圖11及圖12所示的堰式手動開閉閥301中，在殼體302的外周設有外螺紋部302a，在手柄303的內周設有內螺紋部303a，由此殼體302的外徑配合著按壓彈簧304、彈簧承受部305等內置物的尺寸而變大。隨之，外螺紋部302a的螺紋直徑也變大，因此內螺紋部303a與外螺紋部302a的接觸面積變大，所以，存在使手柄303旋轉時產生的摩擦阻力變大、手柄303不容易旋轉、操作性差的問題。 In addition, in the weir-type manual on-off valve 301 shown in FIG. 11 and FIG. 12 of the applicant's previous invention, an externally threaded portion 302a is provided on the outer periphery of the housing 302, and an internally threaded portion 303a is provided on the inner periphery of the handle 303 Therefore, the outer diameter of the housing 302 increases in accordance with the size of the built-in objects such as the pressing spring 304 and the spring receiving portion 305. Accordingly, the thread diameter of the externally threaded portion 302a also increases, so that the contact area between the internally threaded portion 303a and the externally threaded portion 302a increases. Therefore, frictional resistance generated when the handle 303 is rotated is increased, and the handle 303 is not easily rotated. 2. Poor operability.
但是，在本實施形態的堰式手動開閉閥1中，在第一桿6的外周面形成有外螺紋部6a，在構成殼體3的***部 31的一部分上形成有貫通孔31d，在該貫通孔31d的內周面形成有內螺紋部31a，因此，僅將內螺紋部31a設於殼體3的供第一桿6貫穿的貫通孔31d的內周面上即可，外螺紋部6a的螺紋也能夠減小。由此，內螺紋部31a與外螺紋部6a的接觸面積變小，使手柄2旋轉時產生的摩擦阻力變小。由於，手柄2易於旋轉，操作性好。 However, in the weir-type manual on-off valve 1 of this embodiment, a male screw portion 6a is formed on the outer peripheral surface of the first rod 6, and a through hole 31d is formed in a part of the insertion portion 31 constituting the housing 3. A female screw portion 31a is formed on the inner peripheral surface of the through hole 31d. Therefore, the female screw portion 31a may be provided only on the inner peripheral surface of the through hole 31d of the housing 3 through which the first rod 6 passes. The male screw portion 6a The thread can also be reduced. Thereby, the contact area of the internally threaded portion 31 a and the externally threaded portion 6 a becomes small, and the frictional resistance generated when the handle 2 is rotated is reduced. Since the handle 2 is easy to rotate, the operability is good.
堰式手動開閉閥1通過對著以與第一流路4a和第二流路4b正交的方式直線狀設置的閥座43a按壓隔膜閥芯5來閉閥，因此，能夠抑制堰式手動開閉閥1的整體高度，能夠進行流路的切斷。 The weir-type manual on-off valve 1 closes the valve by pressing the diaphragm valve element 5 against a valve seat 43a that is provided in a straight line orthogonal to the first flow path 4a and the second flow path 4b. Therefore, the weir-type manual on-off valve can be suppressed The overall height of 1 enables the flow path to be cut.
此外，堰式手動開閉閥1在從圖1所示的全閉狀態的情況直到圖5所示的全開狀態的情況，設於殼體3的呼吸孔31b都被手柄2覆蓋著，因此能夠防止異物、水等進入殼體內。 In addition, from the fully closed state shown in FIG. 1 to the fully opened state shown in FIG. 5, the weir-type manual on-off valve 1 is covered with the handle 2 by the breathing hole 31 b provided in the housing 3, so that it can be prevented Foreign matter, water, etc. enter the case.
如以上所說明的那樣，根據本實施形態的堰式手動開閉閥1，(1)一種堰式手動開閉閥1，具有：在第一流路4a與第二流路4b之間形成有堰43的閥體4；形成在堰43上的閥座43a；與該閥座43a抵接或離開的隔膜閥芯5；閉閥時將隔膜閥芯5對著閥座43a按壓的按壓彈簧9；內置有按壓彈簧9的殼體3；嵌合於殼體3的手柄2；以及與隔膜閥芯5連結，並貫穿於殼體3和手柄2且以在軸方向上能夠移動的方式被保持的桿，該堰式手動開閉閥1的特徵在於：桿具有在軸方向配置的第一桿6和第二桿8，在第一桿6的外周面形成有外螺紋部6a，在殼體3的供第一桿6貫穿的部分的內周面形成有 與外螺紋部6a螺紋配合的內螺紋部31a。由於在第一桿6的外周面形成有外螺紋部6a，在殼體3的一部分的內周面形成有內螺紋部31a，因此，僅將內螺紋部31a設於殼體3的一部分的內周面上即可，外螺紋部6a的螺紋直徑也能夠減小。由此，內螺紋部31a與外螺紋部6a的接觸面積變小，使手柄2旋轉時產生的摩擦阻力小。由此，易於轉動手柄2，操作性好。 As described above, the weir-type manual on-off valve 1 according to this embodiment, (1) a weir-type manual on-off valve 1 having a weir 43 formed between a first flow path 4a and a second flow path 4b. Valve body 4; Valve seat 43a formed on weir 43; Diaphragm valve core 5 abutting or leaving the valve seat 43a; Pressing spring 9 that presses the diaphragm valve core 5 against the valve seat 43a when the valve is closed; Built-in A housing 3 that presses the spring 9; a handle 2 fitted in the housing 3; and a rod that is connected to the diaphragm valve element 5 and penetrates the housing 3 and the handle 2 and is held so as to be movable in the axial direction, This weir-type manual on-off valve 1 is characterized in that the rod has a first rod 6 and a second rod 8 arranged in the axial direction, an external thread portion 6 a is formed on the outer peripheral surface of the first rod 6, The inner peripheral surface of a portion through which one rod 6 penetrates is formed with an internally threaded portion 31a that is screwed into the externally threaded portion 6a. Since the male screw portion 6 a is formed on the outer peripheral surface of the first rod 6 and the female screw portion 31 a is formed on a part of the inner peripheral surface of the housing 3, the female screw portion 31 a is provided only in a part of the housing 3. The peripheral surface is sufficient, and the thread diameter of the male screw portion 6a can be reduced. Thereby, the contact area of the internally threaded portion 31 a and the externally threaded portion 6 a becomes small, and the frictional resistance generated when the handle 2 is rotated is small. This makes it easy to turn the handle 2 and has good operability.
(2)在(1)所述的堰式手動開閉閥1中，其特徵在於：在第一桿6的第二桿8側貫穿有銷7，在第二桿8上形成有開閥時與銷7卡合的卡合部81，因此，由於在卡合部81與銷7卡合的情況下，在使按壓彈簧9的全長L2為恒定的狀態下，手柄2、第一桿6及按壓彈簧9一體地在軸方向上移動，所以在使手柄2旋轉的情況下不會施加按壓彈簧9的彈簧力所引起的負載。因此，僅在從閉閥狀態開始旋轉手柄2時、或是旋轉手柄2而將閥芯按壓于閥座時，對手柄2施加按壓彈簧9所引起的負載，除此以外的時候，對手柄2不施加按壓彈簧9所引起的負載，因此操作性好。 (2) In the weir-type manual on-off valve 1 described in (1), a pin 7 is penetrated on the second rod 8 side of the first rod 6, and a valve and an opening valve are formed on the second rod 8. The engaging portion 81 where the pin 7 is engaged. Therefore, when the engaging portion 81 is engaged with the pin 7, the handle 2, the first lever 6, and the pressure are held in a state where the total length L2 of the pressing spring 9 is constant. Since the spring 9 moves integrally in the axial direction, when the handle 2 is rotated, a load caused by a spring force pressing the spring 9 is not applied. Therefore, only when the handle 2 is rotated from the closed state, or when the valve core is pressed against the valve seat when the handle 2 is rotated, a load caused by the pressing spring 9 is applied to the handle 2, and otherwise, the handle 2 is applied to the handle 2. Since the load caused by the pressing spring 9 is not applied, the operability is good.
(3)在(1)或(2)所述的堰式手動開閉閥1中，其特徵在於：第二桿8具有供按壓彈簧9的一端抵接的活塞10、和將活塞10以能夠滑動的方式保持的軸承13，因此，即使按壓彈簧9和活塞10傾斜，由於有軸承13所以也不會有損活塞10的滑動性，因此能夠維持密封力的穩定性。 (3) In the weir-type manual on-off valve 1 described in (1) or (2), the second lever 8 includes a piston 10 to which one end of the pressing spring 9 abuts, and a piston 10 to be slidable. Therefore, even if the pressing spring 9 and the piston 10 are tilted, the sliding property of the piston 10 is not impaired due to the presence of the bearing 13 and the stability of the sealing force can be maintained.
(4)在(1)至(3)中任一項所述的堰式手動開閉閥1中，其特徵在於：具有使手柄2、第一桿6及第二桿8共同轉動的共同轉動機構，因此，當使手柄2旋轉時，經由第 一桿6、第二桿8和活塞10(共同轉動機構的一例)，按壓彈簧9與手柄一體地旋轉。按壓彈簧9在手柄2與設於第二桿8上的活塞10之間以頂著的狀態被配置，因此手柄2與第二桿8一體地旋轉。因此，能夠減輕使手柄2旋轉時的負載。 (4) The weir-type manual on-off valve 1 according to any one of (1) to (3), further comprising a common rotation mechanism for rotating the handle 2, the first lever 6, and the second lever 8 together. Therefore, when the handle 2 is rotated, the pressing spring 9 rotates integrally with the handle via the first rod 6, the second rod 8, and the piston 10 (an example of a common rotation mechanism). Since the pressing spring 9 is disposed in an abutting state between the handle 2 and the piston 10 provided on the second rod 8, the handle 2 and the second rod 8 rotate integrally. Therefore, the load when the handle 2 is rotated can be reduced.
另一方面，第一桿6連結於第二桿8，並以在軸方向上能夠往復直線運動的方式配置。此外，第二桿8以容許與第一桿6一起以軸線為中心旋轉的方式連結於第一桿6。壓縮件11被鍵槽3b限制與殼體3的相對旋轉。因此，即使第一桿6與手柄2一體地旋轉，壓縮件11也不旋轉，因此能夠防止隔膜閥芯5的磨損。在第二桿8的前端面與壓縮件11的滑動面之間配置滑動環15，從而減輕了第二桿8的滑動阻力。由此，能夠減輕使手柄2旋轉時的負載，能夠使操作性好，還能夠抑制隔膜閥芯5的磨損，維持穩定的密封。 On the other hand, the first lever 6 is connected to the second lever 8 and is arranged so as to be capable of reciprocating linear movement in the axial direction. In addition, the second lever 8 is connected to the first lever 6 so as to allow rotation with the first lever 6 about the axis. The compression member 11 is restricted from rotating relative to the housing 3 by the key groove 3b. Therefore, even if the first lever 6 and the handle 2 rotate integrally, the compression member 11 does not rotate, so that the diaphragm valve element 5 can be prevented from abrasion. A sliding ring 15 is arranged between the front end surface of the second lever 8 and the sliding surface of the compression member 11, thereby reducing the sliding resistance of the second lever 8. As a result, the load when the handle 2 is rotated can be reduced, operability can be improved, wear of the diaphragm valve element 5 can be suppressed, and a stable seal can be maintained.
(5)在(1)至(4)中任一項所述的堰式手動開閉閥1中，其特徵在於：在殼體3上形成有在殼體的上表面開口的通氣孔31c。當使手柄2旋轉時，手柄2與殼體3上部的上表面之間的空間的容積變化，與周圍的氣壓產生壓差，該差越大，轉動手柄2的負載越大，但是通過在殼體3的上表面開口而與殼體3和手柄2之間的空間連通的通氣孔31c能夠減小該差，從而能夠減輕使手柄2旋轉的力。由此，能夠減輕使手柄2旋轉時的負載，能夠使操作性好。 (5) The weir-type manual on-off valve 1 according to any one of (1) to (4), wherein the casing 3 is formed with a vent hole 31c that is opened on the upper surface of the casing. When the handle 2 is rotated, the volume of the space between the handle 2 and the upper surface of the upper portion of the housing 3 changes, and a pressure difference occurs with the surrounding air pressure. The larger the difference is, the greater the load of turning the handle 2 is. The vent hole 31c, which is open on the upper surface of the body 3 and communicates with the space between the housing 3 and the handle 2, can reduce the difference, and can reduce the force for rotating the handle 2. As a result, the load when the handle 2 is rotated can be reduced, and the operability can be improved.
(6)在(1)至(5)中任一項所述的堰式手動開閉閥1中，其特徵在於：在殼體3的外周面安裝固定有填料12，因此，由於在殼體3與手柄2之間配置有填料12，所以不存在 清洗開閉閥時使用的過氧化氫水溶液等進入到殼體3的內部、或是潤滑脂向外洩漏的情況。 (6) The weir-type manual on-off valve 1 according to any one of (1) to (5), wherein a filler 12 is fixed to the outer peripheral surface of the casing 3, The packing 12 is arranged between the handle 2 and the hydrogen peroxide solution used for cleaning the on-off valve, etc., does not enter the inside of the housing 3 or the grease leaks out.
另外，本實施形態只不過是例示，並不對本發明構成任何限定。因此，本發明當然可以在不脫離其主旨的範圍內進行各種改進、變形。 It should be noted that this embodiment is merely an example and does not limit the present invention in any way. Therefore, it is needless to say that the present invention can be variously improved and modified without departing from the spirit thereof.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016200087A JP6599838B2 (en) | 2016-10-11 | 2016-10-11 | Wear type manual on-off valve |
| JP2016-200087 | 2016-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201814191A true TW201814191A (en) | 2018-04-16 |
| TWI670439B TWI670439B (en) | 2019-09-01 |
Family
ID=61892802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106100811A TWI670439B (en) | 2016-10-11 | 2017-01-11 | 堰 type manual opening and closing valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6599838B2 (en) |
| CN (1) | CN107917231B (en) |
| TW (1) | TWI670439B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869785A (en) * | 2018-08-06 | 2018-11-23 | 中国计量大学 | A kind of double diaphragm counterbalance valves |
| CN112673204A (en) * | 2018-09-27 | 2021-04-16 | 株式会社富士金 | Valve, method for replacing valve element unit of valve, and method for assembling valve |
| CN112212042B (en) * | 2020-07-17 | 2021-10-22 | 光阳产业股份有限公司 | Automatic gas cutting device |
| TWI770615B (en) | 2020-09-22 | 2022-07-11 | 和正豐科技股份有限公司 | Fluororesin diaphragm valve |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128655Y2 (en) * | 1971-12-28 | 1976-07-20 | ||
| JPS60208674A (en) * | 1984-03-30 | 1985-10-21 | Mitsubishi Atom Power Ind Inc | Closed-pressure adjusting type stop valve |
| JPH0231647Y2 (en) * | 1986-05-30 | 1990-08-27 | ||
| JP3465010B2 (en) * | 1993-11-22 | 2003-11-10 | 株式会社フジキン | Fluid controller |
| CA2292279A1 (en) * | 1998-12-18 | 2000-06-18 | Fluoroware, Inc. | Creep resistant valve |
| US6241213B1 (en) * | 2000-03-07 | 2001-06-05 | Itt Manufacturing Enterprises, Inc. | Diaphragm valve |
| JP3462452B2 (en) * | 2000-07-07 | 2003-11-05 | Ｓｍｃ株式会社 | Two-way valve |
| CN100510580C (en) * | 2004-12-15 | 2009-07-08 | 株式会社鹭宫制作所 | Electrically operated control valve |
| EP3062004B1 (en) * | 2009-01-22 | 2017-08-16 | Fujikoki Corporation | Motor-driven valve |
| JP3168588U (en) * | 2011-04-08 | 2011-06-16 | アドバンス電気工業株式会社 | Fluid supply control device |
| TWM452278U (en) * | 2012-09-06 | 2013-05-01 | Guan Long Steel Tube Industry Co Ltd | Diaphragm valve structure |
| JP6270650B2 (en) * | 2014-07-18 | 2018-01-31 | 株式会社鷺宮製作所 | Motorized valve |
| CN204344989U (en) * | 2014-11-25 | 2015-05-20 | 顾志勇 | Membrane valve |
| CN205226459U (en) * | 2015-12-14 | 2016-05-11 | 温州盛锋流体设备有限公司 | Diaphragm valve |
-
2016
- 2016-10-11 JP JP2016200087A patent/JP6599838B2/en active Active
- 2016-12-29 CN CN201611246460.8A patent/CN107917231B/en active Active
-
2017
- 2017-01-11 TW TW106100811A patent/TWI670439B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6599838B2 (en) | 2019-10-30 |
| CN107917231B (en) | 2020-02-14 |
| TWI670439B (en) | 2019-09-01 |
| CN107917231A (en) | 2018-04-17 |
| JP2018062953A (en) | 2018-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI670439B (en) | 堰 type manual opening and closing valve | |
| US3301525A (en) | Flanged seat cup valve member with retention means | |
| TWI647394B (en) | Manual valve | |
| JP2007534893A (en) | Stretch stroke valve and diaphragm | |
| JP3861206B2 (en) | Fluid controller | |
| CA2683393A1 (en) | High-pressure bi-directional valve | |
| NO339409B1 (en) | Sealing unit for fluid pressure control device | |
| JP6041298B2 (en) | Ball valve | |
| US4456028A (en) | Relief gate valve | |
| US1998913A (en) | Faucet | |
| JP6131958B2 (en) | Gas container valve with flywheel for controlling residual pressure valve and stop valve | |
| CN107110394B (en) | Valve actuating device with opening deceleration function | |
| TW201732178A (en) | Fluid controller | |
| US774985A (en) | Valve. | |
| US312077A (en) | Philip | |
| US1452811A (en) | Compression cock | |
| JP2008144836A (en) | Metal seat butterfly valve | |
| US368073A (en) | Adolf convert | |
| JP2019032025A (en) | Packless valve | |
| US2571356A (en) | Valve | |
| US383428A (en) | Combined pipe-coupling and check valve or chamber | |
| US627671A (en) | Self-closing cock. | |
| KR20180090042A (en) | A ball valve | |
| US1362986A (en) | Packless cock or valve | |
| JP7300160B2 (en) | valve |