JP2007239865A - Valve element - Google Patents

Valve element Download PDF

Info

Publication number
JP2007239865A
JP2007239865A JP2006062688A JP2006062688A JP2007239865A JP 2007239865 A JP2007239865 A JP 2007239865A JP 2006062688 A JP2006062688 A JP 2006062688A JP 2006062688 A JP2006062688 A JP 2006062688A JP 2007239865 A JP2007239865 A JP 2007239865A
Authority
JP
Japan
Prior art keywords
end side
flow
valve body
tip end
slit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006062688A
Other languages
Japanese (ja)
Inventor
Akira Kawamata
晃 川又
Keiji Kamata
圭司 鎌田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP2006062688A priority Critical patent/JP2007239865A/en
Publication of JP2007239865A publication Critical patent/JP2007239865A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Check Valves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve element used in a flow passage capable of maintaining the state of a slit of lip portions positively closed with respect to a flow in a second direction flowing from a tip end side to a base end side and positively regulating the flow. <P>SOLUTION: The valve element is used in the flow passage, includes the base end and the tip end, allows flow in a first direction from the base end side to the tip end side, and regulates the flow in the second direction from the tip end side to the base end side. The valve element is provided with a pair of substantially flat lips extending in the direction from the base end toward the tip end so as to converge, and a slit formed by the both lips joining together at the tip end. Further, a protruded portion is provided opposing the tip end of the lips. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、弁体に関するものである。   The present invention relates to a valve body.

弁体、例えばダックビル弁は医療機器を含め様々な用途に使用されている。ダックビル弁は、例えば特許文献1に開示されているように、弾性体から構成され、基端側と先端側を有し、環状部を有する基端側から先端側にかけて互いに収束する実質的に平坦な一対のアヒルの唇状のリップを有し、また、リップには通常状態で閉じているスリットが形成されている。通常、ダックビル弁は気密的にハウジング内に組み込まれた組立体として流動路内に設置され使用される。流動路内において、ダックビル弁の基端側から先端側に向かう第一の方向の流動に対しては、スリットが開いてその流動を許容する。一方、ダックビル弁の先端側から基端側に向かう第二の方向の流動に対しては、リップのスリットが閉じた状態を維持し、流動を規制する。   Valve bodies, such as duckbill valves, are used in a variety of applications including medical devices. The duckbill valve is formed of an elastic body as disclosed in, for example, Patent Document 1, and has a proximal end side and a distal end side, and is substantially flat that converges from the proximal end side having the annular portion to the distal end side. A pair of duck lip-shaped lips, and a slit that is normally closed is formed in the lip. Usually, a duckbill valve is installed and used in a flow path as an assembly hermetically incorporated in a housing. In the flow path, the slit opens to allow the flow in the first direction from the proximal end side to the distal end side of the duckbill valve to allow the flow. On the other hand, for the flow in the second direction from the distal end side to the proximal end side of the duckbill valve, the lip slit is kept closed to restrict the flow.

しかしながら、上記に示すような従来のダックビル弁では、先端側から基端側に向かう第二の方向の流動に対し、リップ部のスリットが開口し、閉じた状態が不十分な場合があり、流動を十分に規制できない問題がある。
特開昭61−228173
However, in the conventional duckbill valve as described above, the slit in the lip portion may be opened and closed with respect to the flow in the second direction from the distal end side to the proximal end side. There is a problem that cannot be fully regulated.
JP-A-61-2228173

本発明の目的は、流動路内に使用される弁体に関して、先端側から基端側に向かう第二の方向の流動に対し、確実にリップ部のスリットが閉じた状態を維持し、流動を確実に規制することができる弁体を提供することにある。   The object of the present invention is to maintain the state in which the slit of the lip portion is securely closed with respect to the flow in the second direction from the distal end side to the proximal end side with respect to the valve body used in the flow path. It is providing the valve body which can be controlled reliably.

本発明は、流動路内に使用され、基端部と先端部を含み、前記基端側から前記先端側に向かう第一の方向の流動を許容し、前記先端側から前記基端側に向かう第二の方向の流動を規制する弁体であって、前記弁体は、前記基端部から先端部の方向に向かって収束するように延出した実質的に平坦な一対のリップと、前記先端部において前記両リップが合わさりスリットが形成され、かつ、前記リップの先端部に対向するように突出部が設けられていることを特徴とする弁体である。   The present invention is used in a flow path, includes a proximal end portion and a distal end portion, allows flow in a first direction from the proximal end side to the distal end side, and travels from the distal end side to the proximal end side. A valve body that regulates flow in a second direction, wherein the valve body includes a pair of substantially flat lips extending so as to converge from the base end portion toward the distal end portion; The valve body is characterized in that a slit is formed by joining both the lips at the tip, and a protrusion is provided so as to face the tip of the lip.

本発明によれば、流動路内に使用される弁体に関して、先端側から基端側に向かう第二の方向の流動に対し、確実にリップ部のスリットが閉じた状態を維持し、流動を確実に規制することができる。   According to the present invention, with respect to the valve body used in the flow path, with respect to the flow in the second direction from the distal end side to the proximal end side, the state in which the slit of the lip portion is reliably closed is maintained, and the flow is It can be regulated reliably.

以下、本発明の実施の形態について、図面を用いて説明する。なお、すべての図面において、共通する構成要素には同一符号を付し、以下の説明において詳細な説明を適宜省略する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, common constituent elements are denoted by the same reference numerals, and detailed description thereof will be appropriately omitted in the following description.

図1(a)〜図1(f)は、本発明の弁体の一例を示す図である。図1(a)は、弁体の正面図である。図1(b)は、弁体の上面図である。図1(c)は、弁体の下面図である。図1(d)は、弁体の側面図である。図1(e)は、図1(b)のA−A’断面図である。図1(f)は、図1(b)のB−B’断面図である。また、図2(a)〜図2(f)は、本発明の弁体の別の一例を示す図である。図2(a)は、弁体の正面図である。図2(b)は、弁体の上面図である。図2(c)は、弁体の下面図である。図2(d)は、弁体の側面図である。図2(e)は、図2(b)のA−A’断面図である。図2(f)は、図1(b)のB−B’断面図である。   Fig.1 (a)-FIG.1 (f) are figures which show an example of the valve body of this invention. Fig.1 (a) is a front view of a valve body. FIG. 1B is a top view of the valve body. FIG.1 (c) is a bottom view of a valve body. FIG.1 (d) is a side view of a valve body. FIG.1 (e) is A-A 'sectional drawing of FIG.1 (b). FIG. 1F is a cross-sectional view taken along the line B-B ′ of FIG. Moreover, Fig.2 (a)-FIG.2 (f) are figures which show another example of the valve body of this invention. Fig.2 (a) is a front view of a valve body. FIG. 2B is a top view of the valve body. FIG. 2C is a bottom view of the valve body. FIG.2 (d) is a side view of a valve body. FIG. 2E is a cross-sectional view taken along the line A-A ′ of FIG. FIG. 2F is a cross-sectional view taken along the line B-B ′ of FIG.

図1(a)〜図1(f)、および図2(a)〜図2(f)に示した弁体は、弾性体から構成され、少なくとも、基端側の環状部1と、基端側から先端側にかけて互いに収束するように延出した実質的に平坦な一対のリップ2と、リップ2に形成されたスリット3を有する。   The valve body shown in FIGS. 1 (a) to 1 (f) and FIGS. 2 (a) to 2 (f) is composed of an elastic body, and at least the annular portion 1 on the proximal end side and the proximal end A pair of substantially flat lips 2 extending so as to converge with each other from the side to the tip side, and a slit 3 formed in the lip 2 are provided.

さらに、弁体のリップ2の先端部に対向するように、リップ2の先端部の外側または内側に、突出部4が設けられている。すなわち、弁体のリップ2の先端部の肉厚が、リップ2の肉厚より実質的に大きくなっている。このため、弁体の先端側から基端側に向かう第二の方向の流動に対し、変形しにくく、スリット3が開口しにくいため、流動を確実に規制することができる。また、閉鎖系の流路で流体として気体を使用し、流路の基端側が大気開放状態となったとき、弁体の基端側から先端側に向かう第一の方向の流動に対し、スリット3が開きっぱなしにならず、スリット3が開閉状態の繰り返しの振幅を起こすため、確実に100Hzから10kHzの周波数の通気音を鳴らせることができる。   Furthermore, the protrusion part 4 is provided in the outer side or inner side of the front-end | tip part of the lip | rip 2 so that the front-end | tip part of the lip | rip 2 of a valve body may be opposed. That is, the thickness of the tip of the lip 2 of the valve body is substantially larger than the thickness of the lip 2. For this reason, since it is hard to deform | transform and it is hard to open the slit 3 with respect to the flow of the 2nd direction which goes to the base end side from the front end side of a valve body, a flow can be controlled reliably. In addition, when a gas is used as a fluid in a closed system flow path and the base end side of the flow path is opened to the atmosphere, a slit is applied to the flow in the first direction from the base end side of the valve body toward the front end side. 3 does not remain open, and the slit 3 causes the repeated amplitude of the open / close state, so that it is possible to reliably generate a ventilation sound with a frequency of 100 Hz to 10 kHz.

弁体の突出部4の肉厚はリップ2の肉厚に比べて、例えば、1.5〜3.0倍の大きさとすることができる。こうすることで、確実な逆流の防止、または確実な通気音の発生を得ることができる。弁体の大きさは、必要とする流動路の大きさにより、一該には言えないが、例えば、弁体の環状部1の外径部を5〜15mm、環状部の長さを1〜5mm、リップの長さを2〜15mmとすることができる。   The thickness of the protruding portion 4 of the valve body can be, for example, 1.5 to 3.0 times larger than the thickness of the lip 2. By doing so, it is possible to reliably prevent backflow or reliably generate aeration sound. The size of the valve body cannot be said to be one depending on the size of the required flow path. For example, the outer diameter portion of the annular portion 1 of the valve body is 5 to 15 mm, and the length of the annular portion is 1 to 1. The length of the lip can be 2 to 15 mm.

弁体のスリット3には、例えば、シリコーンオイルやシリコーングリースを塗布してもよい。こうすることで、弁体の先端側から基端側に向かう第二の方向の流動をさらに確実に規制することができる。   For example, silicone oil or silicone grease may be applied to the slit 3 of the valve body. By carrying out like this, the flow of the 2nd direction which goes to the base end side from the front end side of a valve body can be controlled further reliably.

弁体は、例えば、シリコーンゴム、アクリロニトリルゴム、イソプレンゴム、ウレタンエラストマー等の弾性体を材質とし、圧縮成形等により成形することができる。また、弁体のリップ2のスリット3は成形後に刃物等により形成することができる。   The valve body can be molded by compression molding or the like using, for example, an elastic body such as silicone rubber, acrylonitrile rubber, isoprene rubber, or urethane elastomer. Moreover, the slit 3 of the lip 2 of the valve body can be formed by a blade or the like after molding.

以上、本発明を実施形態に基づいて説明した。これらの実施形態はあくまで例示であり、種々の変形例が可能なこと、また、そうした変形例も本発明の範囲にあることは当業者に理解されるところである。   The present invention has been described based on the embodiments. It is to be understood by those skilled in the art that these embodiments are merely examples, and that various modifications are possible and that such modifications are within the scope of the present invention.

流動路内に使用される弁体に関して、先端側から基端側に向かう第二の方向の流動に対し、確実にリップのスリットが閉じた状態を維持し、流動を確実に規制できる。また、流動体として気体を使用し、閉鎖系にて基端側から先端側に向かう第一の方向に流動体を流して使用される場合に、流動路内の基端側が異常な大気開放状態となったときに、確実に通気音を鳴らすことができる。   With respect to the valve body used in the flow path, the flow of the second direction from the distal end side to the proximal end side can be reliably maintained with the slit of the lip closed, and the flow can be reliably regulated. In addition, when gas is used as the fluid and the fluid is used in the first direction from the proximal side to the distal side in a closed system, the proximal side in the flow path is abnormally open to the atmosphere. When it becomes, the sound of ventilation can be sounded surely.

実施形態に係る弁体の構成を模式的に示す図である。It is a figure which shows typically the structure of the valve body which concerns on embodiment. 実施形態に係る別の弁体の構成を模式的に示す図である。It is a figure which shows typically the structure of another valve body which concerns on embodiment.

符号の説明Explanation of symbols

1 環状部
2 リップ
3 スリット
4 突出部
1 annular portion 2 lip 3 slit 4 protrusion

Claims (1)

流動路内に使用され、基端部と先端部を含み、
前記基端側から前記先端側に向かう第一の方向の流動を許容し、
前記先端側から前記基端側に向かう第二の方向の流動を規制する弁体であって、
前記弁体は、前記基端部から先端部の方向に向かって収束するように延出した実質的に平坦な一対のリップと、前記先端部において前記両リップが合わさりスリットが形成され、かつ、前記リップの先端部に対向するように突出部が設けられていることを特徴とする弁体。

Used in the flow path, including proximal and distal ends,
Allowing a flow in a first direction from the proximal side toward the distal side,
A valve body that regulates flow in a second direction from the distal end side toward the proximal end side;
The valve body has a pair of substantially flat lips extending so as to converge from the base end portion toward the tip end portion, and the both lips are combined at the tip end portion to form a slit, and A valve body, wherein a protrusion is provided to face the tip of the lip.

JP2006062688A 2006-03-08 2006-03-08 Valve element Pending JP2007239865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006062688A JP2007239865A (en) 2006-03-08 2006-03-08 Valve element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006062688A JP2007239865A (en) 2006-03-08 2006-03-08 Valve element

Publications (1)

Publication Number Publication Date
JP2007239865A true JP2007239865A (en) 2007-09-20

Family

ID=38585607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006062688A Pending JP2007239865A (en) 2006-03-08 2006-03-08 Valve element

Country Status (1)

Country Link
JP (1) JP2007239865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014190365A (en) * 2013-03-26 2014-10-06 Yutaka Sangyo:Kk Plug body with check valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911090B1 (en) * 1969-07-22 1974-03-14
JPS56139066U (en) * 1980-03-24 1981-10-21
JPS58119669U (en) * 1982-02-10 1983-08-15 エヌオーケー株式会社 non-return valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911090B1 (en) * 1969-07-22 1974-03-14
JPS56139066U (en) * 1980-03-24 1981-10-21
JPS58119669U (en) * 1982-02-10 1983-08-15 エヌオーケー株式会社 non-return valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014190365A (en) * 2013-03-26 2014-10-06 Yutaka Sangyo:Kk Plug body with check valve

Similar Documents

Publication Publication Date Title
US20060264991A1 (en) Seal housing having anti-inversion features
JP5383312B2 (en) Duckbill valve
EP2679515B1 (en) Venting device
ATE502671T1 (en) MEMBRANE STACK FOR PRESSURE CONTROLLED VALVE
ATE489987T1 (en) INSERTER ARRANGEMENT WITH VALVE
DE69413644T2 (en) Self-sealing flexible valve made of elastomer plastic and trocar, in which the valve is arranged
ES2437920T3 (en) Diaphragm valve
EP1717132A3 (en) Member for baffling, reinforcement or sealing
ATE405319T1 (en) H-SHAPED HEMOSTATIC LIP VALVE ASSEMBLY HAVING A SEAL FOR A GUIDE WIRE
ATE401830T1 (en) IMPROVED SEALING SYSTEM FOR TROCAR
WO2004059198A8 (en) Fluid control valve
JP2009101991A (en) Ventilation device
US20160263335A1 (en) Tracheostomy tube with filleted flange
JP2007239865A (en) Valve element
JP2007224972A (en) Valve assembly and medical equipment
KR102360153B1 (en) Mask having exhaust valve
JP2009073477A (en) Check valve and ventilation device
JP2017044224A (en) Vent valve for drain pipe
US9108133B1 (en) Air-permeable water non-permeable device
JP4648744B2 (en) Endoscope forceps plug
JP2006296609A (en) Forceps plug of endoscope
JP5017721B2 (en) Button type gastrostomy tube
DK1350477T3 (en) trocar sleeve
JP2012031812A (en) Oil level gauge
US10267274B2 (en) Intake noise reduction device

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20080922

Free format text: JAPANESE INTERMEDIATE CODE: A621

A977 Report on retrieval

Effective date: 20110128

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Effective date: 20110208

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20110705