JP2007139040A - Cut-off valve - Google Patents

Cut-off valve Download PDF

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Publication number
JP2007139040A
JP2007139040A JP2005332374A JP2005332374A JP2007139040A JP 2007139040 A JP2007139040 A JP 2007139040A JP 2005332374 A JP2005332374 A JP 2005332374A JP 2005332374 A JP2005332374 A JP 2005332374A JP 2007139040 A JP2007139040 A JP 2007139040A
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Japan
Prior art keywords
valve
valve body
valve element
lead screw
shut
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JP2005332374A
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Japanese (ja)
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JP4765571B2 (en
Inventor
Nobumasa Kasashima
伸正 笠島
Masaki Yamaguchi
正樹 山口
Akihiko Konbu
明彦 昆布
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2005332374A priority Critical patent/JP4765571B2/en
Publication of JP2007139040A publication Critical patent/JP2007139040A/en
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Publication of JP4765571B2 publication Critical patent/JP4765571B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cut-off valve using a lead screw formed on the rotating shaft of a motor for moving a valve element forward/backward while suppressing power consumption by reasonably preventing the turn of the valve element. <P>SOLUTION: The lead screw 9 is formed on the rotating shaft 7 integrated with a rotor 6 of the motor 2 and screwed onto the valve element 1. Thereby, the valve element 1 can be displaced forward/backward in reaction with the rotation of the rotating shaft 7. A coil spring 14 is arranged with both ends fixed and mounted onto the valve element side and the motor side. The elastic resilience of the coil spring 14 prevents the associative turn of the valve element 1 and follows the forward/backward movement of the valve element 1. Thus, there is no friction loss in preventing the associative turn of the valve element 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、ガスの事故を未然に防ぐガス遮断装置の遮断機構として使用される電動式の遮断弁に関するものである。   The present invention relates to an electric shut-off valve used as a shut-off mechanism of a gas shut-off device that prevents, for example, a gas accident.

従来、この種の遮断弁は、取付板にスタッド部を形成し、弁体に前記スタッドが嵌合する穴を備えて、ローターの回転運動を直動に変換している（例えば、特許文献１参照）。   Conventionally, this type of shut-off valve has a stud portion formed on a mounting plate, and a hole in which the stud is fitted is provided in a valve body to convert the rotational motion of the rotor into a linear motion (for example, Patent Document 1). reference).

図４は従来の遮断弁を示すもので、取付板５１と、ステーター５２と、リードスクリュー５３付き回転軸５４を備えたローター５５と、スタッド５６を備えたキャップ５７と、嵌合穴５８を備えた弁体５９から構成されている。
特開平１１−２３５１号公報 FIG. 4 shows a conventional shutoff valve, which includes a mounting plate 51, a stator 52, a rotor 55 having a rotating shaft 54 with a lead screw 53, a cap 57 having a stud 56, and a fitting hole 58. It comprises a valve body 59.
Japanese Patent Laid-Open No. 11-2351

しかしながら、前記従来の構成では回転軸５４の回転運動をリードスクリュー５３で直動に変換するために、キャップ５７に形成したスタッド５６を弁体５９の嵌合穴５８に差し込みんでその弁体５９の共廻りを止める構造としていたため、弁体５９の回転力をスタッド５６で直動に変換する際、スタッド５６と嵌合穴５８との間ですべり抵抗が発生し、消費電力が増大するという課題を有していた。   However, in the conventional configuration, in order to convert the rotational motion of the rotary shaft 54 into the linear motion by the lead screw 53, the stud 56 formed on the cap 57 is inserted into the fitting hole 58 of the valve body 59 and the valve body 59 Since the structure is designed to stop the joint rotation, when the rotational force of the valve body 59 is converted into the linear motion by the stud 56, a slip resistance is generated between the stud 56 and the fitting hole 58, resulting in an increase in power consumption. Had.

本発明は、前記従来の課題を解決するもので、リードスクリュー以外に滑り抵抗を発生させる接触部を持たずに回転止めを行うことを可能とすることで、低消費電力の遮断弁を提供することを目的とする。   The present invention solves the above-described conventional problems, and provides a shut-off valve with low power consumption by making it possible to stop rotation without having a contact portion that generates slip resistance other than the lead screw. For the purpose.

前記従来の課題を解決するために本発明の遮断弁は、ステーターとローターとからなり、前記ローターとともに回転する回転軸にはリードスクリューを形成した電動機と、前記リードスクリューに螺合し、回転軸の回転と応動して進退し、弁座の開口度を可変する弁体と、この弁体と電動機とに両端が固定架設された弾性材とを具備し、前記弾性材は弾性変形状態のもと弁体と電動機との間に介在されており、その弾性復元力によって弁体が共廻りするのを阻止するとともに、この弁体の進退動作に追従するようにしたものである。 In order to solve the above-described conventional problems, a shut-off valve according to the present invention includes a stator and a rotor, and a rotary shaft that rotates together with the rotor has an electric motor in which a lead screw is formed, and is screwed into the lead screw. A valve body that advances and retreats in response to the rotation of the valve body and varies the degree of opening of the valve seat, and an elastic material having both ends fixedly mounted on the valve body and the electric motor, and the elastic material is in an elastically deformed state. The valve body is interposed between the valve body and the electric motor, and the elastic restoring force prevents the valve body from co-rotating and follows the forward and backward movement of the valve body.

したがって、すべり抵抗を発生させることなく弁体の廻り止めを行うことができ、その分、消費電力が低下する。   Therefore, the valve body can be prevented from rotating without generating slip resistance, and power consumption is reduced accordingly.

本発明の遮断弁は、リードスクリュー以外にすべり抵抗を発生させる接触部が無い構造から、消費電力を抑えることができる。   The shut-off valve of the present invention can suppress power consumption because it has no contact portion that generates slip resistance other than the lead screw.

本発明は、ステーターとローターとからなり、前記ローターとともに回転する回転軸にはリードスクリューを形成した電動機と、前記リードスクリューに螺合し、回転軸の回転と応動して進退し、弁座の開口度を可変する弁体と、この弁体と電動機とに両端が固定架設された弾性材とを具備し、前記弾性材は弾性変形状態のもと弁体と電動機との間に介在されており、その弾性復元力によって弁体が共廻りするのを阻止するとともに、この弁体の進退動作に追従するようにしたものである。   The present invention comprises a stator and a rotor, an electric motor having a lead screw formed on a rotating shaft that rotates together with the rotor, and screwed into the lead screw, and advances and retreats in response to the rotation of the rotating shaft. A valve body having a variable opening degree, and an elastic material having both ends fixedly mounted on the valve body and the electric motor. The elastic material is interposed between the valve body and the electric motor in an elastically deformed state. In addition, the elastic restoring force prevents the valve body from co-rotating and follows the forward / backward movement of the valve body.

したがって、すべり抵抗を発生させることなく弁体の廻り止めを行うことができ、その分、消費電力が低下することとなる。   Therefore, the valve element can be prevented from rotating without generating slip resistance, and the power consumption is reduced accordingly.

弾性材としてはコイル状のスプリングや、複数枚の板ばねなどが考えられる。コイル状のスプリングを用いる場合は、弁体側と電動機側にそれぞれ突起を設けて、コイル状のスプリングの各端部をそれら突起に係止してり、弁体側と電動機側にそれぞれ滑り止め加工部を施し、コイル状のスプリングの各端部をこれら滑り止め加工部で係止する。   As the elastic material, a coiled spring, a plurality of leaf springs, and the like can be considered. When coiled springs are used, protrusions are provided on the valve body side and the motor side, respectively, and the ends of the coiled springs are locked to these protrusions. The end portions of the coiled springs are locked by these anti-slip processing portions.

以下本発明の実施の形態について添付図面を参照して説明する。なお、この実施の形態によって、本発明が限定されるものではない。   Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１，２において、弁体１は電動機２によって進退動作され、流路３の弁座４の開口度を可変するようにしてある。 (Embodiment 1)
1 and 2, the valve body 1 is advanced and retracted by the electric motor 2 so as to vary the opening degree of the valve seat 4 in the flow path 3.

前記電動機２はステーター５とその内部に配置したローター６とを主構成要素とし、そのローター６の中心部に固定された回転軸７は電動機２に設けた取付板８を貫通して、前方へ突出し、ここにリードスクリュー９を形成している。   The electric motor 2 includes a stator 5 and a rotor 6 disposed therein as main components, and a rotating shaft 7 fixed to the center of the rotor 6 passes through a mounting plate 8 provided in the electric motor 2 and moves forward. The lead screw 9 is formed here.

前記弁体１は弁座４と対応したゴムなどの弾性材からなる弁板１０と、これを保持する剛体からなる弁基板１１とからなり、この弁基板１１の中心部から後方へ向けボス部１２が一体的に形成してある。   The valve body 1 is composed of a valve plate 10 made of an elastic material such as rubber corresponding to the valve seat 4 and a valve base plate 11 made of a rigid body that holds the valve plate. 12 is integrally formed.

そして、ボス部１２に設けたねじ孔１３に先のリードスクリュー９が螺合されるようにしてある。したがって、弁体１を廻らないように設定しておけば、リードスクリュー９、つまりは回転軸７の回転に伴ってこの弁体１は弁座４に対して進退変位され、その開口度を可変することができることとなる。   The lead screw 9 is screwed into the screw hole 13 provided in the boss portion 12. Therefore, if the valve body 1 is set so as not to turn, the valve body 1 is moved forward and backward with respect to the valve seat 4 with the rotation of the lead screw 9, that is, the rotary shaft 7, and the opening degree thereof is variable. Will be able to.

本実施の形態では、弁体１の廻り止め用としてコイル状のスプリング１４が配置されている。すなわち、このコイル状のスプリング１４は弁基板１１と取付板８との間に介在されており、その各端部は弁基板１１、および取付板８に形成した突起１５，１６にそれぞれ係止されている。   In the present embodiment, a coiled spring 14 is disposed for preventing the valve body 1 from rotating. That is, the coiled spring 14 is interposed between the valve base plate 11 and the mounting plate 8, and each end thereof is engaged with the valve base plate 11 and the projections 15 and 16 formed on the mounting plate 8, respectively. ing.

突起１５，１６はそれぞれが周方向に複数間隔をおいて設けてあるので、コイル状スプリング１４における端部の係止については、位置的規制を受けることがなく合理的に行なえるものである。   Since each of the protrusions 15 and 16 is provided at a plurality of intervals in the circumferential direction, the end portion of the coil spring 14 can be locked without any positional restriction.

前記構成において、弁体１はコイル状スプリング１４のねじり方向弾性力で廻り止めがなされているところから、回転軸７、すなわちリードスクリュー９の回転によって前後方向に進退し、弁座４の開口度を可変する。弁体１の進退変位に伴いコイル状スプリング１４は伸縮動作を行い、弁体１の進退動作を許容する。   In the above configuration, the valve body 1 is prevented from rotating by the elastic force in the torsional direction of the coiled spring 14, and is advanced and retracted in the front-rear direction by the rotation of the rotary shaft 7, that is, the lead screw 9. Is variable. As the valve body 1 moves forward and backward, the coiled spring 14 performs an expansion and contraction operation to allow the valve body 1 to advance and retract.

このように、弁体１の進退動作時、摩擦が生じるのはねじ孔１３とリードスクリュー９との螺合部だけとなり、その分効率的な動作を得ることができるものとなる。   Thus, during the advance / retreat operation of the valve body 1, friction occurs only in the screwed portion between the screw hole 13 and the lead screw 9, and an efficient operation can be obtained accordingly.

（実施の形態２）
図３は本発明の実施の形態２を示すもので、コイル状スプリング１４を弁基板１１と取付板８との間に介在するとともに、その各端部を弁基板１１、および取付板８に形成した滑り止め加工部１７，１８にそれぞれ係止させたものである。 (Embodiment 2)
FIG. 3 shows a second embodiment of the present invention, in which a coil spring 14 is interposed between the valve base plate 11 and the mounting plate 8 and each end thereof is formed on the valve base plate 11 and the mounting plate 8. The non-slip processed parts 17 and 18 are respectively locked.

この構成では、コイル状スプリング１４の端部を滑り止め加工部１７，１８に係当するだけのきわめて簡単な作業でセットできることとなる。   In this configuration, the end of the coiled spring 14 can be set by a very simple operation of engaging the anti-slip processed portions 17 and 18 with each other.

なお、前述した各実施の形態では、コイル状スプリングを使用したが、必ずしもスプリングの種類に限定を受けるものではなく。例えば、複数枚の板ばねを弁基板と取付板とに撓ませた状態（湾曲状態）で取付け、弁体の廻り止めとともに、同弁体の進退に追従させる構成も考えられる。   In each of the above-described embodiments, the coiled spring is used. However, the type of spring is not necessarily limited. For example, a configuration in which a plurality of leaf springs are attached to the valve base plate and the attachment plate in a bent state (curved state) to prevent the valve body from rotating and to follow the forward and backward movement of the valve body is also conceivable.

以上のように、本発明にかかる遮断弁は、リードスクリュー部以外にすべり抵抗を発生させる接触部が無い構造から、消費電力を抑えることが可能となるので、携帯用機器の遮断弁等の用途にも適用できる。 As described above, since the shutoff valve according to the present invention has a structure that does not have a contact portion that generates slip resistance other than the lead screw portion, it is possible to suppress power consumption. It can also be applied to.

本発明の実施の形態１における遮断弁の断面図Sectional drawing of the cutoff valve in Embodiment 1 of this invention 同要部の斜視図Perspective view of the main part 本発明の実施の形態２における遮断弁の断面図Sectional drawing of the cutoff valve in Embodiment 2 of this invention 従来の遮断弁の断面図Cross-sectional view of a conventional shut-off valve

符号の説明Explanation of symbols

１ 弁体
２ 電動機
３ 流路
４ 弁座
５ ステーター
６ローター
７ 回転軸
９ リードスクリュー
１４ コイル状のスプリング
１５，１６ 突起
１７，１８ 滑り止め加工部 DESCRIPTION OF SYMBOLS 1 Valve body 2 Electric motor 3 Flow path 4 Valve seat 5 Stator 6 Rotor 7 Rotating shaft 9 Lead screw 14 Coiled spring 15, 16 Protrusion 17, 18 Anti-slip processing part

Claims (5)

ステーターとローターとからなり、前記ローターとともに回転する回転軸にはリードスクリューを形成した電動機と、前記リードスクリューに螺合し、回転軸の回転と応動して進退し、弁座の開口度を可変する弁体と、この弁体と電動機とに両端が固定架設された弾性材とを具備し、前記弾性材は弾性変形状態のもと弁体と電動機との間に介在されており、その弾性復元力によって弁体が共廻りするのを阻止するとともに、この弁体の進退動作に追従するようにした遮断弁。 It consists of a stator and a rotor, and the rotating shaft that rotates with the rotor is an electric motor with a lead screw, and is screwed into the lead screw, and moves forward and backward in response to the rotation of the rotating shaft, thereby changing the opening degree of the valve seat And an elastic material fixed at both ends of the valve body and the motor, and the elastic material is interposed between the valve body and the motor in an elastically deformed state. A shut-off valve that prevents the valve body from co-rotating due to the restoring force and follows the forward and backward movement of the valve body. 弾性材をコイル状スプリングで構成した請求項１記載の遮断弁。 2. The shut-off valve according to claim 1, wherein the elastic material is a coil spring. 弁体側と電動機側にそれぞれ突起を設けて、コイル状のスプリングの各端部をそれら突起に係止した請求項２記載の遮断弁。 The shut-off valve according to claim 2, wherein protrusions are provided on the valve body side and the motor side, respectively, and each end of the coiled spring is engaged with the protrusions. 弁体側と電動機側にそれぞれ滑り止め加工部を施し、コイル状のスプリングの各端部をこれら滑り止め加工部で係止した請求項２記載の遮断弁。 The shut-off valve according to claim 2, wherein an anti-slip portion is provided on each of the valve body side and the electric motor side, and each end of the coiled spring is locked by the anti-slip portion. 弾性材を複数の板ばねで構成した請求項１記載の遮断弁。 The shut-off valve according to claim 1, wherein the elastic material is constituted by a plurality of leaf springs.
JP2005332374A 2005-11-17 2005-11-17 Shut-off valve Expired - Fee Related JP4765571B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005332374A JP4765571B2 (en) 2005-11-17 2005-11-17 Shut-off valve

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Application Number Priority Date Filing Date Title
JP2005332374A JP4765571B2 (en) 2005-11-17 2005-11-17 Shut-off valve

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JP2007139040A true JP2007139040A (en) 2007-06-07
JP4765571B2 JP4765571B2 (en) 2011-09-07

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733359U (en) * 1980-08-04 1982-02-22
JPH06337077A (en) * 1993-05-27 1994-12-06 Nanomaizaa Kk Safety valve
JPH112351A (en) * 1997-06-13 1999-01-06 Fuji Elelctrochem Co Ltd Two-way fluid valve motor and manufacture thereof
JP2000329247A (en) * 1999-05-19 2000-11-30 Fuji Koki Corp Motor-driven expansion valve
JP2002371959A (en) * 2001-06-15 2002-12-26 Matsushita Electric Ind Co Ltd Linear compressor
JP2003164349A (en) * 2001-12-04 2003-06-10 Mory Industries Inc Spring force pressed type device for frictional fixation of tubular member
JP2003232462A (en) * 2002-02-08 2003-08-22 Rinnai Corp Gas valve
JP2004301307A (en) * 2003-04-01 2004-10-28 Aisan Ind Co Ltd Stepper motor
JP2005083558A (en) * 2003-09-11 2005-03-31 Koyo Seiko Co Ltd Hydraulic clutch blocking device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733359U (en) * 1980-08-04 1982-02-22
JPH06337077A (en) * 1993-05-27 1994-12-06 Nanomaizaa Kk Safety valve
JPH112351A (en) * 1997-06-13 1999-01-06 Fuji Elelctrochem Co Ltd Two-way fluid valve motor and manufacture thereof
JP2000329247A (en) * 1999-05-19 2000-11-30 Fuji Koki Corp Motor-driven expansion valve
JP2002371959A (en) * 2001-06-15 2002-12-26 Matsushita Electric Ind Co Ltd Linear compressor
JP2003164349A (en) * 2001-12-04 2003-06-10 Mory Industries Inc Spring force pressed type device for frictional fixation of tubular member
JP2003232462A (en) * 2002-02-08 2003-08-22 Rinnai Corp Gas valve
JP2004301307A (en) * 2003-04-01 2004-10-28 Aisan Ind Co Ltd Stepper motor
JP2005083558A (en) * 2003-09-11 2005-03-31 Koyo Seiko Co Ltd Hydraulic clutch blocking device

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