JP2008237552A

JP2008237552A - Rotary water spray gun apparatus

Info

Publication number: JP2008237552A
Application number: JP2007082294A
Authority: JP
Inventors: Noboru Oyamada; 昇小山田
Original assignee: Nohmi Bosai Ltd
Current assignee: Nohmi Bosai Ltd
Priority date: 2007-03-27
Filing date: 2007-03-27
Publication date: 2008-10-09
Anticipated expiration: 2027-03-27
Also published as: JP4796003B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-size rotary water spray gun apparatus reducing the cost by eliminating a motor for rotation by using fire extinguishing water as a drive source. <P>SOLUTION: This rotary water spray gun apparatus includes: a vertical pipe 3 disposed with its piping direction set vertically and supplied with fire extinguishing water; a spray gun 5 having a vertical pipe 6 connected to the vertical pipe 3 so as to be turned around the piping direction and a spray nozzle connected to the upper part of the longitudinal pipe; a rotation control unit 11 for generating a normal/reverse rotation torque according to the introduction direction of the fire extinguishing water; a channel selector valve 32 for changing the introduction direction of the fire extinguishing water to the rotation control unit 11; a switching lever 45 transmitting the rotating force of the spray gun 5 to the channel selector valve 32 to change the introduction direction of the fire extinguishing water to the rotation control unit 11; and a power conversion/transmission mechanism part 42 converting the normal/inverse rotation torque generated by the rotation control unit 11 into a turning torque around the piping direction of the longitudinal pipe 6, transmitting it to the vertical pipe 6 and rotating the spray gun 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、散水ノズルを旋回させつつ消火水を散水する旋回方式散水銃装置に関するものである。 The present invention relates to a swirling watering device that sprinkles fire-extinguishing water while swirling a watering nozzle.

従来の放水ユニットは、垂直配管と、垂直配管の開口先端に回動可能に接続されたＬ形配管と、Ｌ形配管の先端に接続された放水ノズルとを備えている。垂直配管は電動弁を介してスプリンクラー配管に連結されている。そして、ウォームがＬ形配管の垂直部の周りに同軸に固定され、ノズル旋回モータの軸に取り付けられたウォームホイールがウォームに歯合している。これにより、ノズル旋回モータが回転すると、Ｌ形配管およびその先端に接続された放水ノズルが水平回り（鉛直軸周り）に回動する（例えば、特許文献１参照）。 A conventional water discharge unit includes a vertical pipe, an L-shaped pipe that is rotatably connected to an opening tip of the vertical pipe, and a water discharge nozzle connected to the tip of the L-shaped pipe. The vertical pipe is connected to the sprinkler pipe through an electric valve. The worm is fixed coaxially around the vertical portion of the L-shaped pipe, and a worm wheel attached to the shaft of the nozzle turning motor meshes with the worm. Thus, when the nozzle turning motor rotates, the L-shaped pipe and the water discharge nozzle connected to the tip of the L-shaped pipe rotate horizontally (around the vertical axis) (see, for example, Patent Document 1).

特開平８−３８６４５号公報JP-A-8-38645

従来の散水ユニットでは、旋回装置が大きくなり、幅員の狭い場所では使用できないという課題があった。さらに、放水ノズルの旋回駆動用としてノズル旋回モータを用いているので、ノズル旋回モータに加え、その電気配線が必要となると共に、その駆動制御手段が必要となり、コスト増をもたらしてしまうという課題もあった。 The conventional watering unit has a problem that the swivel device becomes large and cannot be used in a narrow space. Further, since the nozzle turning motor is used for driving the turning of the water discharge nozzle, in addition to the nozzle turning motor, its electric wiring is required and its drive control means is required, resulting in an increase in cost. there were.

この発明は、上記の課題を解決するためになされたものであり、消火水を駆動源として旋回用モータを省略し、コストの低減を図る小型の旋回方式散水銃装置を得ることを目的とする。 The present invention has been made to solve the above-described problem, and an object of the present invention is to obtain a small swirl-type watering gun apparatus that eliminates a swivel motor using fire extinguishing water as a drive source and reduces costs. .

この発明による旋回方式散水銃装置は、管路方向を鉛直にして配設されて消火水が供給される鉛直配管と、上記鉛直配管の上部開口部に管路方向周りに回動可能に連結された縦配管および該縦配管の上部に連結された散水ノズルを有する散水銃と、上記消火水の一部を駆動源とし、正／逆回転トルクを発生する動力発生機構部と、上記動力発生機構部により発生された上記正／逆回転トルクを上記縦配管の管路方向周りの回動トルクに変換して該縦配管に伝達し、上記散水銃を旋回させる動力変換・伝達機構部と、を備えている。上記動力発生機構部は、回転軸、軸心を上記回転軸の軸心からずらして該回転軸の端部に固着された偏心リング、上記消火水の一部が導入される第１および第２作動室、および、それぞれピストンが伸縮自在に配設され、該ピストンの伸長方向を上記回転軸の軸心に向けて上記偏心リングを囲繞するように該回転軸の軸心周りに１２０°ピッチで配列され、上記第１作動室に導入された上記消火水が導入されたときに、各ピストンを伸長させて上記偏心リングを押圧し、上記回転軸に正回転トルクを付与し、上記第２作動室に導入された上記消火水が導入されたときに、各ピストンを伸長させて上記偏心リングを押圧し、上記回転軸に逆回転トルクを付与する３つのシリンダを有する旋回制御ユニットと、上記消火水を上記第１作動室に導入する流路と該消火水を上記第２作動室に導入する流路とを切り換える流路切換バルブと、上記散水銃が鉛直配管の管路方向周りの一方向に所定角度旋回したときに、上記散水銃の旋回力を上記流路切換バルブに伝達して、上記消火水を上記第１作動室に導入する流路から該消火水を上記第２作動室に導入する流路に切り換えさせ、上記散水銃が鉛直配管の管路方向周りの他方向に所定角度旋回したときに、上記散水銃の旋回力を上記流路切換バルブに伝達して、上記消火水を上記第２作動室に導入する流路から該消火水を上記第１作動室に導入する流路に切り換えさせる流路切換バルブ駆動機構部と、を有している。 A swirling-type water spray gun device according to the present invention is connected to a vertical pipe that is arranged with the pipe direction vertical and to which fire-extinguishing water is supplied, and is pivotally connected to the upper opening of the vertical pipe around the pipe direction. A vertical gun and a water spray gun having a water nozzle connected to the upper part of the vertical pipe, a power generation mechanism that generates a forward / reverse rotation torque using a part of the fire water as a drive source, and the power generation mechanism A power conversion / transmission mechanism unit that converts the forward / reverse rotational torque generated by the unit into a rotational torque around the pipe direction of the vertical pipe and transmits the torque to the vertical pipe, and turns the water gun. I have. The power generation mechanism includes first and second eccentric shafts, in which an eccentric ring fixed to an end of the rotating shaft and a part of the fire-extinguishing water are introduced. Each of the working chambers and the pistons is disposed so as to be extendable and retracted at a 120 ° pitch around the axis of the rotary shaft so as to surround the eccentric ring with the extension direction of the piston directed toward the axis of the rotary shaft. When the fire extinguishing water arranged and introduced into the first working chamber is introduced, each piston is extended to press the eccentric ring, and a positive rotational torque is applied to the rotating shaft, and the second operation is performed. When the fire-fighting water introduced into the chamber is introduced, the swivel control unit having three cylinders that extend the respective pistons to press the eccentric ring and apply reverse rotation torque to the rotary shaft, and the fire-extinguishing unit Water is introduced into the first working chamber And a flow path switching valve for switching between the flow path and the flow path for introducing the fire-extinguishing water into the second working chamber, and when the water spray gun is swung by a predetermined angle in one direction around the pipe direction of the vertical pipe, The turning force of the water spray gun is transmitted to the flow path switching valve so that the fire fighting water is switched from the flow path for introducing the fire fighting water to the first working chamber to the flow path for introducing the fire fighting water to the second working chamber, When the watering gun is turned by a predetermined angle in the other direction around the pipe direction of the vertical pipe, the turning force of the watering gun is transmitted to the flow path switching valve, and the fire-extinguishing water is introduced into the second working chamber. A flow path switching valve drive mechanism for switching the fire extinguishing water from the flow path to the flow path for introducing the fire extinguishing water into the first working chamber.

この発明によれば、動力発生機構部が、消火水の一部を駆動源として散水銃を旋回させるための動力を発生しているので、駆動モータなどの部品、その電気配線、さらにはその駆動制御手段が不要となり、コストの低減および装置のコンパクト化が図られる。 According to the present invention, the power generation mechanism generates power for turning the water spray gun using a part of the fire extinguishing water as a drive source. Therefore, components such as a drive motor, its electrical wiring, and further its drive Control means is not required, and the cost can be reduced and the apparatus can be made compact.

図１はこの発明の一実施の形態に係る旋回方式散水銃装置の全体構成を模式的に示す側断面図、図２はこの発明の一実施の形態に係る旋回方式散水銃装置の動作状態を示す側断面図、図３はこの発明の一実施の形態に係る旋回方式散水銃装置における駆動用シリンダの動作を説明する図、図４はこの発明の一実施の形態に係る旋回方式散水銃装置における散水銃の連結構造を説明する要部断面図である。図５はこの発明の一実施の形態に係る旋回方式散水銃装置における旋回制御ユニットを示す図であり、図５の（ａ）はその正面図、図５の（ｂ）はその側面図である。図６はこの発明の一実施の形態に係る旋回方式散水銃装置における旋回制御ユニットの構造を説明する断面図、図７は図６のＶＩＩ−ＶＩＩ矢視断面図、図８は図６のＶＩＩＩ−ＶＩＩＩ矢視断面図、図９は図６のＩＸ−ＩＸ矢視断面図である。図１０はこの発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットにおける回転軸ブロックの作動室の構成を説明する断面図、図１１はこの発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットにおける偏心リングとピストンとの位置関係を説明する断面図である。 FIG. 1 is a side sectional view schematically showing the overall configuration of a swirling watering gun apparatus according to an embodiment of the present invention, and FIG. 2 shows an operating state of the swirling watering gun apparatus according to an embodiment of the present invention. FIG. 3 is a side cross-sectional view, FIG. 3 is a view for explaining the operation of the drive cylinder in the turning-type watering gun apparatus according to one embodiment of the present invention, and FIG. 4 is a turning-type watering gun apparatus according to one embodiment of the present invention. It is principal part sectional drawing explaining the connection structure of the watering gun in. FIG. 5 is a view showing a turning control unit in the turning type watering gun apparatus according to the embodiment of the present invention, FIG. 5 (a) is a front view thereof, and FIG. 5 (b) is a side view thereof. . 6 is a cross-sectional view for explaining the structure of a turning control unit in a turning-type water spray gun apparatus according to an embodiment of the present invention, FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 6, and FIG. -VIII sectional view taken on the line, FIG. 9 is a sectional view taken along the arrow IX-IX in FIG. FIG. 10 is a cross-sectional view illustrating the configuration of the working chamber of the rotary shaft block in the turning control unit of the turning-type watering gun apparatus according to one embodiment of the present invention, and FIG. 11 is a turning method according to one embodiment of the present invention. It is sectional drawing explaining the positional relationship of the eccentric ring and piston in the turning control unit of a watering gun apparatus.

図１において、旋回方式散水銃装置は、制御弁２を介して給水本管１に接続され、管路方向を鉛直とする鉛直配管３と、鉛直配管３に軸受部４を介して鉛直軸周りに回動可能に接続された散水銃５と、散水銃５を鉛直軸周りに回動させる旋回機構部１０と、これらを収納する隠蔽箱５０を備えている。 In FIG. 1, the swirling-type water spray gun apparatus is connected to a water supply main pipe 1 through a control valve 2, and has a vertical pipe 3 having a vertical pipe line direction and a vertical pipe 3 around a vertical axis through a bearing portion 4. The water spray gun 5 is connected to the water gun 5 so as to be rotatable, the turning mechanism 10 is configured to rotate the water gun 5 around the vertical axis, and the concealment box 50 is provided.

散水銃５は、縦配管６と、縦配管６の上部開口部に所定の方向に曲げられて取り付けられた散水ノズル７と、を備えている。この散水銃５は、図４に示されるように、縦配管６の管路方向を鉛直配管３の管路方向に一致させて、縦配管６を鉛直配管３の上部開口部に管路方向周りに回動可能に接続されている。そして、縦配管６と鉛直配管３との間にはＯリング８ａ、８ｂが介装され、消火水５５が漏れ出ないようになっている。また、手動操作ハンドル９が散水銃５に取り付けられている。 The watering gun 5 includes a vertical pipe 6 and a watering nozzle 7 that is bent and attached to an upper opening of the vertical pipe 6 in a predetermined direction. As shown in FIG. 4, the watering gun 5 is configured so that the pipe line direction of the vertical pipe 6 coincides with the pipe line direction of the vertical pipe 3, and the vertical pipe 6 extends around the pipe line in the upper opening of the vertical pipe 3. Is pivotally connected to. And, O-rings 8a and 8b are interposed between the vertical pipe 6 and the vertical pipe 3, so that the fire-extinguishing water 55 does not leak out. A manual operation handle 9 is attached to the watering gun 5.

旋回機構部１０は、消火水５５の一部を駆動源とし、消火水５５の導入方向を変えることで正／逆回転トルクを発生する旋回制御ユニット１１と、旋回制御ユニット１１への消火水５５の導入方向を切り換える流路切換バルブ３２と、旋回制御ユニット１１により発生された正／逆回転トルクを縦配管６の管路方向と平行な軸周りの回動力に変換して縦配管６に伝達し、散水銃５を旋回させる動力変換・伝達機構部４２と、散水銃５の旋回力を流路切換バルブ３２に伝達して流路切換バルブ３２を流路切り換え動作させる流路切換バルブ駆動機構部と、を備えている。ここで、旋回制御ユニット１１、流路切換バルブ３２および流路切換バルブ駆動機構部により動力発生機構部を構成する。 The turning mechanism unit 10 uses a part of the fire-extinguishing water 55 as a drive source, and changes the introduction direction of the fire-extinguishing water 55 to generate a forward / reverse rotational torque, and the fire-extinguishing water 55 to the turning control unit 11. The forward / reverse rotational torque generated by the flow path switching valve 32 and the turning control unit 11 for switching the introduction direction of the pipe is converted into the rotational force around the axis parallel to the pipe direction of the vertical pipe 6 and transmitted to the vertical pipe 6. Then, a power conversion / transmission mechanism section 42 for turning the water spray gun 5 and a flow path switching valve drive mechanism for transmitting the turning force of the water spray gun 5 to the flow path switching valve 32 and for switching the flow path switching valve 32. And a section. Here, the turning control unit 11, the flow path switching valve 32, and the flow path switching valve drive mechanism section constitute a power generation mechanism section.

つぎに、旋回機構部１０の各構成について図５乃至図１１を参照しつつ説明する。
旋回制御ユニット１１は、シリンダブロック１２と、シリンダブロック１２に同軸に連結された回転軸ブロック１７と、を備えている。 Next, each configuration of the turning mechanism unit 10 will be described with reference to FIGS. 5 to 11.
The turning control unit 11 includes a cylinder block 12 and a rotating shaft block 17 that is coaxially connected to the cylinder block 12.

シリンダブロック１２は、両端開口を端板で塞口された円筒体に作製された第１筐体１３と、それぞれ第１乃至第３ピストン１６ａ〜１６ｃを伸縮自在に収納し、第１筐体１３内に軸方向を径方向に向けて、かつ第１乃至第３ピストン１６ａ〜１６ｃの伸長方向を径方向内方として、１２０°ピッチで同一円周上に配設された第１乃至第３シリンダ１５ａ〜１５ｃと、を有する。 The cylinder block 12 accommodates a first casing 13 made of a cylindrical body whose openings at both ends are closed by end plates, and first to third pistons 16a to 16c, respectively. First to third cylinders disposed on the same circumference at a pitch of 120 ° with the axial direction directed radially in and the extending direction of the first to third pistons 16a to 16c being radially inward 15a-15c.

回転軸ブロック１７は、有底円筒状をなし、開口を介して連通するように第１筐体１３の一端面に同軸に連結された第２筐体１８と、一端を外部に延出させて、かつ他端を第１筐体１３内に延出させ、第２筐体１８内に同軸に配設された回転軸１９と、軸心Ｇを回転軸１９の軸心Ｏからずらして回転軸１９の他端に固着されて第１筐体１３内に配設された偏心リング２０と、第２筐体１８から延出する回転軸１９の一端に取り付けられ、回転軸１９の回転トルクを所定の比率で出力軸２２に出力するギア室２１と、を有する。 The rotary shaft block 17 has a bottomed cylindrical shape, and is connected to one end surface of the first housing 13 coaxially so as to communicate with each other through an opening, and has one end extended to the outside. , And the other end extends into the first housing 13, and the rotating shaft 19 and the shaft center G arranged coaxially in the second housing 18 are shifted from the shaft center O of the rotating shaft 19. An eccentric ring 20 fixed to the other end of 19 and disposed in the first housing 13, and attached to one end of a rotating shaft 19 extending from the second housing 18, the rotational torque of the rotating shaft 19 is set to a predetermined value. A gear chamber 21 that outputs to the output shaft 22 at a ratio of

第１および第２切り欠き２３，２４が、円柱体をなす回転軸１９の軸心を挟んだ両側に、回転軸１９の一部を除去して作製されている。第１切り欠き２３は、軸方向中央部から一端側に延設され、第２切り欠き２４は、回転軸１９の軸方向中央部から他端側に延設されている。第１および第２切り欠き２３，２４の形成領域は、軸方向に関して、中央部で重なっている。第１および第２切り欠き２３，２４の底面２３ａ，２４ａは、回転軸１９の軸心を挟んで平行に、かつ軸心から等距離に形成されている。 The first and second cutouts 23 and 24 are formed by removing a part of the rotary shaft 19 on both sides of the axis of the rotary shaft 19 forming a cylindrical body. The first notch 23 extends from the axial center to one end side, and the second notch 24 extends from the axial center of the rotating shaft 19 to the other end. The formation regions of the first and second cutouts 23 and 24 are overlapped at the center in the axial direction. The bottom surfaces 23 a and 24 a of the first and second cutouts 23 and 24 are formed in parallel with the axis of the rotary shaft 19 in between and at an equal distance from the axis.

第１乃至第３ワッシャ２５ａ〜２５ｃは、それぞれ断面矩形でリング状に作製され、第２筐体１８の軸方向の一端側、中央部および他端側に、互いに離間して、第２筐体１８に内嵌状態に配設されている。回転軸１９が、第１乃至第３ワッシャ２５ａ〜２５ｃに支持されて回転自在に第２筐体１８に取り付けられている。第１ワッシャ２５ａは、第１切り欠き２３と第１ワッシャ２５ａの軸方向一端側とを分離し、第３ワッシャ２５ｃは、第２切り欠き２４と第３ワッシャ２５ｃの軸方向他端側とを分離している。第２ワッシャ２５ｂは、第１および第２切り欠き２３，２４の軸方向における重なり領域を囲繞し、第１切り欠き２３と第２切り欠き２４とを分離している。 The first to third washers 25a to 25c are each formed in a ring shape with a rectangular cross section, and are spaced apart from each other at one end side, the central portion, and the other end side in the axial direction of the second casing 18 to form the second casing. 18 is disposed in an internally fitted state. The rotating shaft 19 is supported by the first to third washers 25a to 25c and is rotatably attached to the second casing 18. The first washer 25a separates the first notch 23 and the one axial end side of the first washer 25a, and the third washer 25c separates the second notch 24 and the other axial end side of the third washer 25c. It is separated. The second washer 25 b surrounds the overlapping region in the axial direction of the first and second cutouts 23, 24 and separates the first cutout 23 and the second cutout 24.

回転軸１９の軸方向中央部では、図８に示されるように、第２ワッシャ２５ｂと回転軸１９とにより、第１切り欠き２３の軸方向中央側の部分で構成される第１作動室２６と、第２切り欠き２４の軸方向中央側の部分で構成される第２作動室２７とが形成される。第２筐体１８と第２ワッシャ２５ｂとを貫通する第１乃至第３貫通穴２８ａ〜２８ｃが同一円周上に１２０°ピッチで形成されている。そして、第１貫通穴２８ａと第１シリンダ１５ａとが第１送水管１４ａで連結され、第２貫通穴２８ｂと第２シリンダ１５ｂとが第２送水管１４ｂで連結され、第３貫通穴２８ｃと第３シリンダ１５ｃとが第３送水管１４ｃで連結されている。 As shown in FIG. 8, at the axially central portion of the rotating shaft 19, the first working chamber 26 is configured by the second washer 25 b and the rotating shaft 19, which is configured by the axially central portion of the first notch 23. And the 2nd working chamber 27 comprised by the part of the axial direction center side of the 2nd notch 24 is formed. First to third through holes 28a to 28c penetrating the second casing 18 and the second washer 25b are formed at a 120 ° pitch on the same circumference. The first through hole 28a and the first cylinder 15a are connected by the first water supply pipe 14a, the second through hole 28b and the second cylinder 15b are connected by the second water supply pipe 14b, and the third through hole 28c. The 3rd cylinder 15c is connected with the 3rd water supply pipe 14c.

回転軸１９の軸方向一端側には、図９に示されるように、第１および第２ワッシャ２５ａ，２５ｂ、第２筐体１８および回転軸１９で囲まれ、第１作動室２６に連通する第１流通路３０ａが形成されている。この第１流通路３０ａは、第１切り欠き２３の軸方向一端側の部分と、回転軸１９の外周面と第２筐体１８の内周面との隙間とから構成される。そして、第１給排口３１ａが第１流通路３０ａに臨むように第２筐体１８に穿設されている。 As shown in FIG. 9, one end side of the rotating shaft 19 in the axial direction is surrounded by the first and second washers 25 a and 25 b, the second housing 18 and the rotating shaft 19, and communicates with the first working chamber 26. A first flow passage 30a is formed. The first flow passage 30 a is configured by a portion on one end side in the axial direction of the first notch 23, and a gap between the outer peripheral surface of the rotating shaft 19 and the inner peripheral surface of the second housing 18. And the 1st supply / exhaust port 31a is drilled in the 2nd housing | casing 18 so that the 1st flow path 30a may be faced.

回転軸１９の軸方向他端側には、図７に示されるように、第２および第３ワッシャ２５ｂ，２５ｃ、第２筐体１８および回転軸１９で囲まれ、第２作動室２７に連通する第２流通路３０ｂが形成されている。この第２流通路３０ｂは、第２切り欠き２４の軸方向他端側の部分と、回転軸１９の外周面と第２筐体１８の内周面との隙間とから構成される。そして、第２給排口３１ｂが第２流通路３０ｂに臨むように第２筐体１８に穿設されている。 As shown in FIG. 7, the second axial end of the rotary shaft 19 is surrounded by the second and third washers 25 b and 25 c, the second casing 18 and the rotary shaft 19, and communicates with the second working chamber 27. A second flow passage 30b is formed. The second flow passage 30 b is configured by a portion on the other axial end side of the second notch 24 and a gap between the outer peripheral surface of the rotating shaft 19 and the inner peripheral surface of the second housing 18. And the 2nd housing | casing 18 is drilled so that the 2nd supply / discharge port 31b may face the 2nd flow path 30b.

ここで、第１および第２切り欠き２３，２４と第１乃至第３貫通穴２８ａ〜２８ｃとの関係について図１０を参照しつつ説明する。
第１および第２切り欠き２３，２４の底面２３ａ，２４ａは、偏心リング２０の軸心Ｇと回転軸１９の軸心Ｏとを含む平面に平行に、かつ該平面を挟んで等距離に形成されている。第１乃至第３貫通穴２８ａ〜２８ｃは、１２０°ピッチで同一円周上に配列されている。そして、第１および第２切り欠き２３，２４は、第１および第２切り欠き２３，２４の一方の底面２３ａ（２４ａ）が第１乃至第３貫通孔２８ａ〜２８ｃのなかの２つの貫通孔の孔中心を結ぶ位置に位置しているときに、他方の底面２４ａ（２３ａ）が回転軸１９の軸心Ｏと残る１つの貫通孔の孔中心を結ぶ線分と直交するように、構成されている。 Here, the relationship between the 1st and 2nd notches 23 and 24 and the 1st thru | or 3rd through-holes 28a-28c is demonstrated, referring FIG.
The bottom surfaces 23a and 24a of the first and second cutouts 23 and 24 are formed in parallel to a plane including the axis G of the eccentric ring 20 and the axis O of the rotary shaft 19 and at equal distances across the plane. Has been. The first to third through holes 28a to 28c are arranged on the same circumference at a pitch of 120 °. The first and second cutouts 23 and 24 have two through holes in which one bottom surface 23a (24a) of the first and second cutouts 23 and 24 is the first through third through holes 28a to 28c. The other bottom surface 24a (23a) is configured to be orthogonal to a line segment connecting the axis O of the rotating shaft 19 and the hole center of the remaining one through hole when the hole center is located at a position connecting the hole centers. ing.

ついで、第１乃至第３ピストン１６ａ〜１６ｃ、第１および第２切り欠き２３，２４、第１乃至第３貫通穴２８ａ〜２８ｃ、および偏心リング２０の関係について図１１を参照しつつ説明する。図１１では、消火水５５が第１作動室２６に給水され、第３貫通孔２８ｃから第３送水管１４ｃを介して第３シリンダ１５ｃに導入され、第３ピストン１６ｃが伸長して偏心リング２０を押圧する場合を示している。
消火水５５が第３貫通穴２８ｃから第３送水管１４ｃを通って第３シリンダ１５ｃに導入され、第３ピストン１６ｃが伸長する。偏心リング２０が伸長する第３ピストン１６ｃに押圧されて、回転軸１９が図１１中時計回りに回転する。そして、第３ピストン１６ｃが最大伸長位置まで伸長した時点で、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、第３貫通孔２８ｃの孔中心と、第３貫通孔２８ｃの回転方向前方に位置する第１貫通孔２８ａの孔中心とを結ぶ位置に位置している。 Next, the relationship among the first to third pistons 16a to 16c, the first and second notches 23 and 24, the first to third through holes 28a to 28c, and the eccentric ring 20 will be described with reference to FIG. In FIG. 11, the fire extinguishing water 55 is supplied to the first working chamber 26 and introduced into the third cylinder 15c from the third through hole 28c through the third water supply pipe 14c, and the third piston 16c extends to extend the eccentric ring 20. The case of pressing is shown.
Fire extinguishing water 55 is introduced from the third through hole 28c through the third water supply pipe 14c into the third cylinder 15c, and the third piston 16c extends. The eccentric ring 20 is pressed by the extending third piston 16c, and the rotating shaft 19 rotates clockwise in FIG. When the third piston 16c extends to the maximum extension position, the bottom surface 23a of the first notch 23 that constitutes the first working chamber 26 has the hole center of the third through hole 28c and the third through hole 28c. It is located at a position connecting the hole center of the first through hole 28a located forward in the rotation direction.

ここでは、第１作動室２６に消火水５５を給水し、第３ピストン１６ｃにより偏心リング２０を押圧する場合を例にとって説明しているが、第１および第２ピストン１６ａ，１６ｂにより偏心リング２０を押圧する場合も同様である。また、第２作動室２７に消火水５５を給水し、第１乃至第３ピストンにより偏心リング２０を押圧する場合も同様である。
つまり、第１乃至第３ピストン１６ａ〜１６ｃ、第１および第２切り欠き２３，２４、および偏心リング２０は、貫通孔を介してシリンダに消火水を導入して伸長されるピストンが偏心リング２０を押圧しつつ最大伸長位置まで伸長したときに、消火水が給水されている作動室を構成する切り欠きの底面が、ピストンを最大伸長位置まで伸長させているシリンダに消火水を導入している貫通孔の孔中心と、回転軸１９の回転方向前方の貫通孔の孔中心とを結ぶ位置に位置するように、構成されている。 Here, the case where the fire extinguishing water 55 is supplied to the first working chamber 26 and the eccentric ring 20 is pressed by the third piston 16c has been described as an example, but the eccentric ring 20 is formed by the first and second pistons 16a and 16b. The same is true when pressing. The same applies to the case where the fire extinguishing water 55 is supplied to the second working chamber 27 and the eccentric ring 20 is pressed by the first to third pistons.
In other words, the first to third pistons 16a to 16c, the first and second cutouts 23 and 24, and the eccentric ring 20 are formed by introducing the extinguishing water into the cylinder through the through-holes, and the piston extended by the eccentric ring 20 When the pressure is extended to the maximum extension position while pressing, the bottom of the notch that forms the working chamber to which the fire extinguishing water is supplied introduces the fire extinguishing water to the cylinder that extends the piston to the maximum extension position. It is configured so as to be located at a position connecting the hole center of the through hole and the hole center of the through hole forward of the rotation shaft 19 in the rotation direction.

流路切換バルブ３２は、図３に示されるように、円筒状の弁本体３３と、弁本体３３の両端開口を塞口する端板３４ａ，３４ｂと、両端に駆動軸３６ａ，３６ｂを有し、駆動軸３６ａ，３６ｂを端板３４ａ，３４ｂに挿通させ、弁本体３３内に第１室３７ａ、第２室３７ｂおよび第３室３７ｃを画成するように配設された弁体３５と、を備えている。そして、両駆動軸３６ａ，３６ｂが端板３４ａ，３４ｂの挿通孔内壁面を摺動し、同時に弁体３５が弁本体３３の内壁面を摺動して、弁体３５が弁本体３３の軸方向に往復移動する。なお、各摺動部には、Ｏリングが介装され、消火水５５が漏れ出ないようになっている。 As shown in FIG. 3, the flow path switching valve 32 has a cylindrical valve body 33, end plates 34 a and 34 b that close the openings at both ends of the valve body 33, and drive shafts 36 a and 36 b at both ends. A valve body 35 disposed so that the drive shafts 36a and 36b are inserted into the end plates 34a and 34b, and a first chamber 37a, a second chamber 37b, and a third chamber 37c are defined in the valve body 33; It has. The drive shafts 36a and 36b slide on the inner wall surfaces of the insertion holes of the end plates 34a and 34b. At the same time, the valve body 35 slides on the inner wall surface of the valve body 33. Move back and forth in the direction. Each sliding part is provided with an O-ring so that the fire-extinguishing water 55 does not leak out.

また、弁本体３３には、第１給水孔３８が弁体３５の移動に拘わらず第２室３７ｂに臨むように穿設されている。また、第２給水孔３９が弁体３５の移動により第１室３７ａおよび第２室３７ｂの一方に臨むように弁本体３３に穿設されている。さらに、第３給水孔４０が弁体３５の移動により第２室３７ｂおよび第３室３７ｃの一方に臨むように弁本体３３に穿設されている。さらにまた、弁本体３３には、第１排水孔４１ａが弁体３５の移動に拘わらず第１室３７ａに臨むように穿設され、第２排水孔４１ｂが弁体３５の移動に拘わらず第３室３７ｃに臨むように穿設されている。 The valve body 33 is formed with a first water supply hole 38 so as to face the second chamber 37b regardless of the movement of the valve body 35. The second water supply hole 39 is formed in the valve main body 33 so as to face one of the first chamber 37a and the second chamber 37b by the movement of the valve body 35. Further, the third water supply hole 40 is formed in the valve main body 33 so as to face one of the second chamber 37b and the third chamber 37c by the movement of the valve body 35. Furthermore, the first drain hole 41a is formed in the valve body 33 so as to face the first chamber 37a regardless of the movement of the valve body 35, and the second drain hole 41b is the second regardless of the movement of the valve body 35. It is drilled to face the three chambers 37c.

動力変換・伝達機構部４２は、散水銃５の縦配管６に外嵌状態に固着された第１かさ歯車４３と、出力軸２２に同軸に固着され、第１かさ歯車４３に歯合する第２かさ歯車４４と、を備えている。一対の切り換えレバー４５（４５ａ，４５ｂ）が、周方向に所定の角度だけ離間して縦配管６の外周壁から延設され、流路切換バルブ駆動機構部を構成している。
そして、分岐配管４６が制御弁２から分岐し、流路切換バルブ３２の第１給水孔３８に接続され、開閉バルブ４７が分岐配管４６の経路途中に配設されている。第１管路４８が流路切換バルブ３２の第２給水孔３９と旋回制御ユニット１１の第１給排口３１ａとを連通するように配管されている。また、第２管路４９が流路切換バルブ３２の第３給水孔４０と旋回制御ユニット１１の第２給排口３１ｂとを連通するように配管されている。 The power conversion / transmission mechanism section 42 is a first bevel gear 43 fixedly fitted to the vertical pipe 6 of the water spray gun 5 and a first bevel gear 43 coaxially fixed to the output shaft 22 and meshed with the first bevel gear 43. Two bevel gears 44. A pair of switching levers 45 (45a, 45b) are spaced apart from each other by a predetermined angle in the circumferential direction and extend from the outer peripheral wall of the vertical pipe 6 to constitute a flow path switching valve drive mechanism.
The branch pipe 46 branches from the control valve 2, is connected to the first water supply hole 38 of the flow path switching valve 32, and the open / close valve 47 is disposed in the course of the branch pipe 46. The first pipe 48 is piped so as to communicate the second water supply hole 39 of the flow path switching valve 32 and the first supply / exhaust port 31a of the turning control unit 11. Further, the second pipe line 49 is piped so as to communicate the third water supply hole 40 of the flow path switching valve 32 and the second supply / exhaust port 31b of the turning control unit 11.

隠蔽箱５０は、散水銃５の散水ノズル７を露出させる開口部を有し、散水銃５および旋回機構部１０を覆うように配設された本体部５１と、本体部５１に軸５２周りに回動自在に取り付けられて本体部５１の開口部を開閉するカバー５３と、を備えている。このカバー５３は、消火水５５の非散水時には本体部５１の開口部を塞口しており、消火水５５の散水時には、散水ノズル７から散水される消火水５５の圧力を受けて軸５２周りに回動し、本体部５１の開口部を開放する。また、消火栓５４が制御弁２から隠蔽箱５０の外部に至るように延設されている。 The concealment box 50 has an opening that exposes the watering nozzle 7 of the watering gun 5, a main body 51 disposed so as to cover the watering gun 5 and the turning mechanism 10, and the main body 51 around the shaft 52. And a cover 53 that is rotatably attached to open and close the opening of the main body 51. The cover 53 closes the opening of the main body 51 when the fire-extinguishing water 55 is not sprayed. When the fire-extinguishing water 55 is sprinkled, the cover 53 receives the pressure of the fire-extinguishing water 55 sprayed from the sprinkling nozzle 7 and rotates around the shaft 52. To open the opening of the main body 51. A fire hydrant 54 extends from the control valve 2 to the outside of the concealment box 50.

つぎに、消火水５５が第１作動室２６に導入される場合の旋回制御ユニット１１の動作について図１２を参照しつつ説明する。なお、図１２中、実線の矢印は消火水５５の移動方向を示し、一点鎖線の矢印はピストンの移動方向を示している。
図１２の（ａ）において、第１管路４８から第１給排口３１ａおよび第１流通路３０ａを経て第１作動室２６内に給水された消火水５５は、第３貫通孔２８ｃから第３送水管１４ｃを通って第３シリンダ１５ｃ内に導入され、第３ピストン１６ｃが第３シリンダ１５ｃから伸長される。そして、偏心リング２０が伸長する第３ピストン１６ｃに押圧され、回転軸１９が時計回りに回転する。この時、偏心リング２０が回転方向の前方に位置する第１ピストン１６ａを押圧し、第１ピストン１６ａが第１シリンダ１５ａ内に押し込まれる。そして、第１シリンダ１５ａ内の消火水５５が第１送水管１４ａを通って第１貫通孔２８ａから第２作動室２７内に戻され、第２流通路３０ｂ、第２給排口３１ｂおよび第２管路４９を通って、流路切換バルブ３２に戻される。 Next, the operation of the turning control unit 11 when the fire extinguishing water 55 is introduced into the first working chamber 26 will be described with reference to FIG. In FIG. 12, the solid arrow indicates the moving direction of the fire extinguishing water 55, and the alternate long and short dash line indicates the moving direction of the piston.
In FIG. 12A, the fire-extinguishing water 55 supplied from the first pipe 48 to the first working chamber 26 through the first supply / discharge port 31a and the first flow passage 30a is passed through the third through hole 28c. The water is introduced into the third cylinder 15c through the three water supply pipes 14c, and the third piston 16c is extended from the third cylinder 15c. And the eccentric ring 20 is pressed by the 3rd piston 16c which expands, and the rotating shaft 19 rotates clockwise. At this time, the eccentric ring 20 presses the first piston 16a positioned forward in the rotation direction, and the first piston 16a is pushed into the first cylinder 15a. Then, the fire extinguishing water 55 in the first cylinder 15a passes through the first water supply pipe 14a and is returned from the first through hole 28a into the second working chamber 27, and the second flow passage 30b, the second supply / discharge port 31b, and the second It returns to the flow path switching valve 32 through the two pipe lines 49.

第３ピストン１６ｃが更に伸長し、回転軸１９が時計回りに回転を続ける。そして、第３ピストン１６ｃが最大伸長位置まで伸長すると、回転軸１９は、図１２の（ｂ）に示される第１貫通孔２８ａを完全に塞いだ状態を経て、図１２の（ｃ）に示される状態まで回転する。この時、第１作動室２６を構成する第１切り欠き２３の底面２３ａは、第３貫通孔２８ｃの孔中心と、第３貫通孔２８ｃの回転方向前方に位置する第１貫通孔２８ａの孔中心とを結ぶ位置に位置している。また、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、回転軸１９の軸心Ｏと第２貫通孔２８ｂの孔中心とを結ぶ線分と直交している。ここで、第１作動室２６内の消火水５５が、第１貫通孔２８ａから第１送水管１４ａを通って第１シリンダ１５ａ内に導入され始め、第１ピストン１６ａの伸長動作が開始される。 The third piston 16c further extends, and the rotation shaft 19 continues to rotate clockwise. Then, when the third piston 16c extends to the maximum extension position, the rotating shaft 19 passes through the state where the first through hole 28a shown in FIG. Rotate until it is ready. At this time, the bottom surface 23a of the first notch 23 constituting the first working chamber 26 is a hole center of the third through hole 28c and a hole of the first through hole 28a located in front of the third through hole 28c in the rotation direction. It is located at the position connecting the center. Further, the bottom surface 24a of the second notch 24 constituting the second working chamber 27 is orthogonal to a line segment connecting the axis O of the rotation shaft 19 and the hole center of the second through hole 28b. Here, the fire extinguishing water 55 in the first working chamber 26 starts to be introduced into the first cylinder 15a from the first through hole 28a through the first water supply pipe 14a, and the extension operation of the first piston 16a is started. .

そして、図１２の（ｄ）に示されるように、伸長する第１ピストン１６ａが偏心リング２０を押圧し、回転軸１９の時計回りの回転を継続する。この時、偏心リング２０が回転方向の前方に位置する第２ピストン１６ｂを押圧し、第２ピストン１６ｂが第２シリンダ１５ｂ内に押し込まれる。そして、第２シリンダ１５ｂ内の消火水５５が第２送水管１４ｂを通って第２貫通孔２８ｂから第２作動室２７内に戻され、第２管路４９を通って、流路切換バルブ３２に戻される。 Then, as shown in FIG. 12 (d), the extending first piston 16 a presses the eccentric ring 20, and the rotation of the rotating shaft 19 continues. At this time, the eccentric ring 20 presses the second piston 16b positioned forward in the rotation direction, and the second piston 16b is pushed into the second cylinder 15b. Then, the fire extinguishing water 55 in the second cylinder 15 b passes through the second water supply pipe 14 b and is returned from the second through hole 28 b into the second working chamber 27, passes through the second pipe 49, and passes through the flow path switching valve 32. Returned to

そして、図１２の（ｅ）に示されるように、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、第２貫通孔２８ｂの孔中心と、第２貫通孔２８ｂの回転方向前方に位置する第３貫通孔２８ｃの孔中心とを結ぶ位置に位置するまで、回転軸１９が回転すると、偏心リング２０が回転方向の前方に位置する第３ピストン１６ｃを押圧し始め、第３ピストン１６ｃを第３シリンダ１５ｃ内に押し込む。このとき、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、回転軸１９の軸心Ｏと第１貫通孔２８ａの孔中心とを結ぶ線分と直交している。そして、第３シリンダ１５ｃ内の消火水５５が第３送水管１４ｃを通って第３貫通孔２８ｃから第２作動室２７内に戻され、第２管路４９を通って、流路切換バルブ３２に戻される。 As shown in FIG. 12E, the bottom surface 24a of the second notch 24 constituting the second working chamber 27 includes the hole center of the second through hole 28b and the rotation direction of the second through hole 28b. When the rotating shaft 19 rotates until it is located at a position connecting the hole center of the third through hole 28c located in front, the eccentric ring 20 starts to press the third piston 16c located in front of the rotation direction, and the third The piston 16c is pushed into the third cylinder 15c. At this time, the bottom surface 23a of the first notch 23 constituting the first working chamber 26 is orthogonal to a line segment connecting the axis O of the rotating shaft 19 and the hole center of the first through hole 28a. The fire extinguishing water 55 in the third cylinder 15 c passes through the third water supply pipe 14 c and is returned from the third through hole 28 c into the second working chamber 27, passes through the second pipe 49, and passes through the flow path switching valve 32. Returned to

そして、第１ピストン１６ａが最大伸長位置まで伸長すると、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、図１２の（ｆ）に示されるように、第１貫通孔２８ａの孔中心と、第１貫通孔２８ａの回転方向の前方に位置する第２貫通孔２８ｂの孔中心とを結ぶ位置に位置するまで、回転軸１９が回転する。ここで、第１作動室２６内の消火水５５が、第２貫通孔２８ｂから第２送水管１４ｂを通って第２シリンダ１５ｂ内に導入され始め、第２ピストン１６ｂの伸長動作が開始される。このとき、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、回転軸１９の軸心Ｏと第３貫通孔２８ｃの孔中心とを結ぶ線分と直交している。 Then, when the first piston 16a extends to the maximum extension position, the bottom surface 23a of the first notch 23 constituting the first working chamber 26 has the first through hole 28a as shown in FIG. The rotating shaft 19 rotates until it is located at a position connecting the hole center and the hole center of the second through hole 28b located forward in the rotation direction of the first through hole 28a. Here, the fire extinguishing water 55 in the first working chamber 26 starts to be introduced into the second cylinder 15b from the second through hole 28b through the second water supply pipe 14b, and the extension operation of the second piston 16b is started. . At this time, the bottom surface 24a of the second notch 24 constituting the second working chamber 27 is orthogonal to the line segment connecting the axis O of the rotating shaft 19 and the hole center of the third through hole 28c.

このように、第１管路４８を介して第１作動室２６に給水された消火水５５が、第１乃至第３貫通穴２８ａ〜２８ｃを介して第１乃至第３シリンダ１５ａ〜１５ｃに順次導入され、第１乃至第３ピストン１６ａ〜１６ｃが順次伸長し、偏心リング２０を押圧する。これにより、回転軸１９が時計回りに回転する。同時に、偏心リング２０は、回転方向前方の第１乃至第３ピストン１６ａ〜１６ｃを押圧して第１乃至第３シリンダ１５ａ〜１５ｃ内に押し込んでいる。これにより、第１乃至第３シリンダ１５ａ〜１５ｃ内の消火水５５は、第１乃至第３送水管１４ａ〜１４ｃを介して第２作動室２７に戻され、第２管路４９を介して流路切換バルブ３２に戻される。そこで、回転軸１９の時計回りの回転が継続される。 In this way, the fire extinguishing water 55 supplied to the first working chamber 26 via the first pipe 48 is sequentially supplied to the first to third cylinders 15a to 15c via the first to third through holes 28a to 28c. The first to third pistons 16a to 16c are sequentially extended to press the eccentric ring 20. Thereby, the rotating shaft 19 rotates clockwise. At the same time, the eccentric ring 20 presses the first to third pistons 16a to 16c in front of the rotation direction and pushes them into the first to third cylinders 15a to 15c. Accordingly, the fire extinguishing water 55 in the first to third cylinders 15 a to 15 c is returned to the second working chamber 27 via the first to third water supply pipes 14 a to 14 c and flows through the second pipe 49. Returned to the path switching valve 32. Therefore, the clockwise rotation of the rotating shaft 19 is continued.

つぎに、消火水５５が第２作動室２７に導入される場合の旋回制御ユニット１１の動作について図１３を参照しつつ説明する。なお、図１３中、実線の矢印は消火水５５の移動方向を示し、一点鎖線の矢印はピストンの移動方向を示している。
図１３の（ａ）において、第２管路４９から第２給排口３１ｂおよび第２流通路３０ｂを経て第２作動室２７内に給水された消火水５５は、第２貫通孔２８ｂから第２送水管１４ｂを通って第２シリンダ１５ｂ内に導入され、第２ピストン１６ｂが第２シリンダ１５ｂから伸長される。そして、偏心リング２０が伸長する第２ピストン１６ｂに押圧され、回転軸１９が反時計回りに回転する。この時、偏心リング２０が回転方向の前方に位置する第１ピストン１６ａを押圧し、第１ピストン１６ａが第１シリンダ１５ａ内に押し込まれる。そして、第１シリンダ１５ａ内の消火水５５が第１送水管１４ａを通って第１貫通孔２８ａから第１作動室２６内に戻され、第１流通路３０ａ、第１給排口３１ａおよび第１管路４８を通って、流路切換バルブ３２に戻される。 Next, the operation of the turning control unit 11 when the fire extinguishing water 55 is introduced into the second working chamber 27 will be described with reference to FIG. In FIG. 13, the solid arrow indicates the movement direction of the fire extinguishing water 55, and the alternate long and short dash line arrow indicates the movement direction of the piston.
In FIG. 13A, the fire-extinguishing water 55 supplied into the second working chamber 27 from the second conduit 49 through the second supply / exhaust port 31b and the second flow passage 30b passes through the second through hole 28b. 2 is introduced into the second cylinder 15b through the water supply pipe 14b, and the second piston 16b is extended from the second cylinder 15b. Then, the eccentric ring 20 is pressed by the extending second piston 16b, and the rotating shaft 19 rotates counterclockwise. At this time, the eccentric ring 20 presses the first piston 16a positioned forward in the rotation direction, and the first piston 16a is pushed into the first cylinder 15a. Then, the fire extinguishing water 55 in the first cylinder 15a passes through the first water supply pipe 14a and is returned from the first through hole 28a into the first working chamber 26, and the first flow passage 30a, the first supply / discharge port 31a, and the first It returns to the flow path switching valve 32 through the one pipe line 48.

第２ピストン１６ｂが更に伸長し、回転軸１９が反時計回りに回転を続ける。そして、第２ピストン１６ｂが最大伸長位置まで伸長すると、回転軸１９は、図１３の（ｂ）に示される第１貫通孔２８ａを完全に塞いだ状態を経て、図１３の（ｃ）に示される状態まで回転する。この時、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、第２貫通孔２８ｂの孔中心と、第２貫通孔２８ｃの回転方向の前方に位置する第１貫通孔２８ａの孔中心とを結ぶ位置に位置している。また、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、回転軸１９の軸心Ｏと第３貫通孔２８ｃの孔中心とを結ぶ線分と直交している。ここで、第２作動室２７内の消火水５５が、第１貫通孔２８ａから第１送水管１４ａを通って第１シリンダ１５ａ内に導入され始め、第１ピストン１６ａの伸長動作が開始される。 The second piston 16b further extends, and the rotating shaft 19 continues to rotate counterclockwise. When the second piston 16b extends to the maximum extension position, the rotary shaft 19 is shown in FIG. 13 (c) after completely closing the first through hole 28a shown in FIG. 13 (b). Rotate until it is ready. At this time, the bottom surface 24a of the second cutout 24 constituting the second working chamber 27 is formed between the hole center of the second through hole 28b and the first through hole 28a located forward in the rotational direction of the second through hole 28c. It is located at a position connecting the hole center. Further, the bottom surface 23a of the first notch 23 constituting the first working chamber 26 is orthogonal to a line segment connecting the axis O of the rotating shaft 19 and the hole center of the third through hole 28c. Here, the fire extinguishing water 55 in the second working chamber 27 starts to be introduced into the first cylinder 15a from the first through hole 28a through the first water supply pipe 14a, and the extension operation of the first piston 16a is started. .

そして、図１３の（ｄ）に示されるように、伸長する第１ピストン１６ａが偏心リング２０を押圧し、回転軸１９の反時計回りの回転を継続する。この時、偏心リング２０が回転方向の前方に位置する第３ピストン１６ｃを押圧し、第３ピストン１６ｃが第３シリンダ１５ｃ内に押し込まれる。そして、第３シリンダ１５ｃ内の消火水５５が第３送水管１４ｃを通って第３貫通孔２８ｃから第１作動室２６内に戻され、第１管路４８を通って、流路切換バルブ３２に戻される。 Then, as shown in FIG. 13 (d), the first piston 16 a that expands presses the eccentric ring 20, and the rotation shaft 19 continues to rotate counterclockwise. At this time, the eccentric ring 20 presses the third piston 16c positioned forward in the rotation direction, and the third piston 16c is pushed into the third cylinder 15c. Then, the fire extinguishing water 55 in the third cylinder 15 c passes through the third water supply pipe 14 c and is returned from the third through hole 28 c into the first working chamber 26, passes through the first pipe 48 and passes through the flow path switching valve 32. Returned to

そして、図１３の（ｅ）に示されるように、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、第３貫通孔２８ｃの孔中心と、第３貫通孔２８ｃの回転方向の前方に位置する第２貫通孔２８ｂの孔中心とを結ぶ位置に位置するまで、回転軸１９が回転すると、偏心リング２０が回転方向の前方に位置する第２ピストン１６ｂを押圧し始め、第２ピストン１６ｂを第２シリンダ１５ｂ内に押し込む。このとき、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、回転軸１９の軸心Ｏと第１貫通孔２８ａの孔中心とを結ぶ線分と直交している。そして、第２シリンダ１５ｂ内の消火水５５が第２送水管１４ｂを通って第２貫通孔２８ｂから第１作動室２６内に戻され、第１管路４８を通って、流路切換バルブ３２に戻される。 As shown in FIG. 13 (e), the bottom surface 23a of the first notch 23 constituting the first working chamber 26 includes the hole center of the third through hole 28c and the rotation direction of the third through hole 28c. When the rotating shaft 19 rotates until it is located at a position connecting the hole center of the second through hole 28b located in front of the eccentric ring 20, the eccentric ring 20 starts to press the second piston 16b located in front of the rotation direction, The 2 piston 16b is pushed into the second cylinder 15b. At this time, the bottom surface 24a of the second notch 24 constituting the second working chamber 27 is orthogonal to a line segment connecting the axis O of the rotary shaft 19 and the hole center of the first through hole 28a. Then, the fire extinguishing water 55 in the second cylinder 15b passes through the second water supply pipe 14b, returns from the second through hole 28b into the first working chamber 26, passes through the first pipe 48, and passes through the flow path switching valve 32. Returned to

そして、第１ピストン１６ａが最大伸長位置まで伸長すると、第２作動室２７を構成する第２切り欠き２４の底面２４ａが、図１３の（ｆ）に示されるように、第１貫通孔２８ａの孔中心と、第１貫通孔２８ａの回転方向の前方に位置する第３貫通孔２８ｃの孔中心とを結ぶ位置に位置するまで、回転軸１９が回転する。ここで、第２作動室２７内の消火水５５が、第３貫通孔２８ｃから第３送水管１４ｃを通って第３シリンダ１５ｃ内に導入され始め、第３ピストン１６ｃの伸長動作が開始される。このとき、第１作動室２６を構成する第１切り欠き２３の底面２３ａが、回転軸１９の軸心Ｏと第２貫通孔２８ｂの孔中心とを結ぶ線分と直交している。 When the first piston 16a is extended to the maximum extension position, the bottom surface 24a of the second notch 24 constituting the second working chamber 27 is formed in the first through hole 28a as shown in FIG. The rotating shaft 19 rotates until it is located at a position connecting the hole center and the hole center of the third through hole 28c located in front of the first through hole 28a in the rotation direction. Here, the fire extinguishing water 55 in the second working chamber 27 starts to be introduced into the third cylinder 15c from the third through hole 28c through the third water supply pipe 14c, and the extension operation of the third piston 16c is started. . At this time, the bottom surface 23a of the first notch 23 constituting the first working chamber 26 is orthogonal to a line segment connecting the axis O of the rotation shaft 19 and the hole center of the second through hole 28b.

このように、第２管路４９を介して第２作動室２７に給水された消火水５５が、第１乃至第３貫通穴２８ａ〜２８ｃを介して第１乃至第３シリンダ１５ａ〜１５ｃに順次導入され、第１乃至第３ピストン１６ａ〜１６ｃが順次伸長し、偏心リング２０を押圧する。これにより、回転軸１９が反時計回りに回転する。同時に、偏心リング２０は、回転方向前方の第１乃至第３ピストン１６ａ〜１６ｃを押圧して第１乃至第３シリンダ１５ａ〜１５ｃ内に押し込んでいる。これにより、第１乃至第３シリンダ１５ａ〜１５ｃ内の消火水５５は、第１乃至第３送水管１４ａ〜１４ｃを介して第１作動室２６に戻され、第１管路４８を介して流路切換バルブ３２に戻される。そこで、回転軸１９の反時計回りの回転が継続される。 In this way, the fire-extinguishing water 55 supplied to the second working chamber 27 via the second conduit 49 is sequentially supplied to the first to third cylinders 15a to 15c via the first to third through holes 28a to 28c. The first to third pistons 16a to 16c are sequentially extended to press the eccentric ring 20. Thereby, the rotating shaft 19 rotates counterclockwise. At the same time, the eccentric ring 20 presses the first to third pistons 16a to 16c in front of the rotation direction and pushes them into the first to third cylinders 15a to 15c. Thus, the fire extinguishing water 55 in the first to third cylinders 15 a to 15 c is returned to the first working chamber 26 via the first to third water supply pipes 14 a to 14 c and flows through the first pipe 48. Returned to the path switching valve 32. Therefore, the counterclockwise rotation of the rotating shaft 19 is continued.

つぎに、このように構成された旋回式散水銃装置の動作について説明する。
まず、火災が発生すると、制御弁２が開放され、消火水５５が給水本管１から鉛直配管３に流入し、散水ノズル７から散水される。カバー５３は、この散水ノズル７から散水された消火水５５の水圧を受け、軸５２周りに回動し、本体部５１の開口部が開けられ、図２に示されるように、消火水５５が散水される。 Next, the operation of the swirling watering gun apparatus configured as described above will be described.
First, when a fire occurs, the control valve 2 is opened, and the fire extinguishing water 55 flows into the vertical pipe 3 from the water supply main pipe 1 and is sprinkled from the watering nozzle 7. The cover 53 receives the water pressure of the fire-extinguishing water 55 sprinkled from the watering nozzle 7 and rotates around the shaft 52 to open the opening of the main body 51. As shown in FIG. Watered.

消火水５５の一部が、給水本管１から分岐して分岐配管４６に流入し、流路切換バルブ３２に給水される。この時、流路切換バルブ３２は、図３の（ａ）の状態にあるとする。そこで、消火水５５は、第１給水孔３８から第２室３７ｂに給水され、第２給水孔３９から排水される。第２給水孔３９から排水された消火水５５は、第１管路４８を通り、旋回制御ユニット１１に供給される。 A part of the fire extinguishing water 55 branches from the water supply main pipe 1 and flows into the branch pipe 46, and is supplied to the flow path switching valve 32. At this time, it is assumed that the flow path switching valve 32 is in the state of FIG. Therefore, the fire extinguishing water 55 is supplied from the first water supply hole 38 to the second chamber 37 b and discharged from the second water supply hole 39. The fire-extinguishing water 55 drained from the second water supply hole 39 passes through the first pipe 48 and is supplied to the turning control unit 11.

旋回制御ユニット１１では、消火水５５は、第１給排口３１ａから第１流通路３０ａに流入し、第１作動室２６に給水される。そして、上述の通り、第１乃至第３ピストン１６ａ〜１６ｃが順次伸縮動作し、回転軸１９が時計回りに回転する。そして、第１乃至第３ピストン１６ａ〜１６ｃの縮小動作時に、第１乃至第３シリンダ１５ａ〜１５ｃ内の消火水５５が第２作動室２７に戻され、第２流通路３０ｂを通り第２給排口３１ｂから第２管路４９を通り、流路切換バルブ３２に戻される。そして、消火水５５は第３給水孔４０から第３室３７ｃに導入され、第２排水孔４１ｂから排水される。 In the turning control unit 11, the fire extinguishing water 55 flows into the first flow passage 30 a from the first supply / exhaust port 31 a and is supplied to the first working chamber 26. And as above-mentioned, the 1st thru | or 3rd piston 16a-16c carries out the expansion-contraction operation | movement sequentially, and the rotating shaft 19 rotates clockwise. Then, when the first to third pistons 16a to 16c are contracted, the fire extinguishing water 55 in the first to third cylinders 15a to 15c is returned to the second working chamber 27 and passes through the second flow passage 30b for the second supply. The exhaust port 31 b passes through the second pipe line 49 and is returned to the flow path switching valve 32. And the fire extinguishing water 55 is introduce | transduced into the 3rd chamber 37c from the 3rd water supply hole 40, and is drained from the 2nd drainage hole 41b.

この回転軸１９の回転トルクがギア室２１内の歯車輪列により所定の比率で変換され、出力軸２２に伝達される。この出力軸２２の回転トルクは、第２かさ歯車４４と第１かさ歯車４３との歯合により、縦配管６の管路方向周りの回転トルクに変換されて縦配管６に伝達される。これにより、縦配管６はその管路方向周りに周方向の一側に回動し、散水ノズル７が一側に旋回しつつ消火水５５を散水する。 The rotational torque of the rotating shaft 19 is converted at a predetermined ratio by the toothed wheel train in the gear chamber 21 and transmitted to the output shaft 22. The rotational torque of the output shaft 22 is converted into rotational torque around the pipe line direction of the vertical pipe 6 by the engagement of the second bevel gear 44 and the first bevel gear 43 and transmitted to the vertical pipe 6. Thereby, the vertical piping 6 rotates to the one side of the circumferential direction around the pipe line direction, and the water spray nozzle 7 sprinkles the fire extinguishing water 55 while turning to one side.

縦配管６がその管路方向周りに周方向の一側に所定角度だけ回動すると、縦配管６に突設された一方の切り換えレバー４５ａが駆動軸３６ａに当接する。縦配管６が周方向の一側にさらに回動すると、弁体３５が、図３の（ａ）中右側に摺動移動し、図３の（ｂ）の状態となる。この時、第１給水孔３８から第２室３７ｂに給水された消火水５５は、第３給水孔４０から排水される。第３給水孔４０から排水された消火水５５は、第２管路４９を通り、旋回制御ユニット１１に供給される。 When the vertical pipe 6 rotates around the pipe line by a predetermined angle to one side in the circumferential direction, one switching lever 45a protruding from the vertical pipe 6 comes into contact with the drive shaft 36a. When the vertical pipe 6 is further rotated to one side in the circumferential direction, the valve element 35 is slid and moved to the right side in FIG. 3A, and the state shown in FIG. At this time, the fire-extinguishing water 55 supplied from the first water supply hole 38 to the second chamber 37 b is drained from the third water supply hole 40. The fire extinguishing water 55 drained from the third water supply hole 40 passes through the second conduit 49 and is supplied to the turning control unit 11.

旋回制御ユニット１１では、消火水５５は、第２給排口３１ａから第２流通路３０ｂに流入し、第２作動室２７に給水される。そして、上述の通り、第１乃至第３ピストン１６ａ〜１６ｃが順次伸縮動作し、回転軸１９が反時計回りに回転する。そして、第１乃至第３ピストン１６ａ〜１６ｃの縮小動作時に、第１乃至第３シリンダ１５ａ〜１５ｃ内の消火水５５が第１作動室２６に戻され、第１流通路３０ａを通り第１給排口３１ａから第１管路４８を通り、流路切換バルブ３２に戻される。そして、消火水５５は第２給水孔３９から第１室３７ａに導入され、第１排水孔４１ａから排水される。 In the turning control unit 11, the fire extinguishing water 55 flows into the second flow passage 30 b from the second supply / discharge port 31 a and is supplied to the second working chamber 27. And as above-mentioned, the 1st thru | or 3rd piston 16a-16c carries out the expansion-contraction operation | movement sequentially, and the rotating shaft 19 rotates counterclockwise. Then, when the first to third pistons 16a to 16c are contracted, the fire extinguishing water 55 in the first to third cylinders 15a to 15c is returned to the first working chamber 26 and passes through the first flow passage 30a for the first supply. The exhaust port 31 a passes through the first pipe 48 and is returned to the flow path switching valve 32. And the fire extinguishing water 55 is introduce | transduced into the 1st chamber 37a from the 2nd water supply hole 39, and is drained from the 1st drain hole 41a.

これにより、回転軸１９が逆方向に回転される。この回転軸１９の回転トルクがギア室２１内の歯車輪列により所定の比率で変換され、出力軸２２に伝達される。この出力軸２２の回転トルクは、第２かさ歯車４４と第１かさ歯車４３との歯合により、縦配管６の管路方向周りの回転トルクに変換されて縦配管６に伝達される。これにより、縦配管６はその管路方向周りに周方向の他側に回動し、散水ノズル７が他側に旋回しつつ消火水５５を散水する。 Thereby, the rotating shaft 19 is rotated in the reverse direction. The rotational torque of the rotating shaft 19 is converted at a predetermined ratio by the toothed wheel train in the gear chamber 21 and transmitted to the output shaft 22. The rotational torque of the output shaft 22 is converted into rotational torque around the pipe line direction of the vertical pipe 6 by the engagement of the second bevel gear 44 and the first bevel gear 43 and transmitted to the vertical pipe 6. Thereby, the vertical piping 6 rotates to the other side of the circumferential direction around the pipe line direction, and the water spray nozzle 7 sprinkles the fire extinguishing water 55 while turning to the other side.

縦配管６がその管路方向周りに周方向の他側に所定角度だけ回動すると、縦配管６に突設された他方の切り換えレバー４５ｂが駆動軸３６ｂに当接する。縦配管６が周方向の他側にさらに回動すると、弁体３５が、図３の（ｂ）中左側に摺動移動し、図３の（ａ）の状態となる。この時、第１給水孔３８から第２室３７ｂに給水された消火水５５は、第２給水孔３９から排水される。第２給水孔３９から排水された消火水５５は、第１管路４８を通り、旋回制御ユニット１１に供給される。 When the vertical pipe 6 is rotated by a predetermined angle around the pipe line to the other side in the circumferential direction, the other switching lever 45b protruding from the vertical pipe 6 comes into contact with the drive shaft 36b. When the vertical pipe 6 is further rotated to the other side in the circumferential direction, the valve body 35 slides and moves to the left side in FIG. 3B, and the state shown in FIG. At this time, the fire-extinguishing water 55 supplied from the first water supply hole 38 to the second chamber 37 b is drained from the second water supply hole 39. The fire-extinguishing water 55 drained from the second water supply hole 39 passes through the first pipe 48 and is supplied to the turning control unit 11.

このようにして、この旋回方式散水銃装置は、散水銃５の旋回力を流路切換バルブ３２に伝達して、消火水５５の旋回制御ユニット１１への導入方向を切り換えることにより、散水銃５を所定の旋回角度で、右旋回と左旋回とを交互に行い、消火水５５を散水する。また、手動操作ハンドル９を操作すれば、手動にて、散水銃５から消火水５５を散水できる。さらに、消火ホース５６を消火栓５４に接続し、消火ホース５６からの消火水５５の散水もできる。 In this manner, the swirling water spray gun device transmits the swivel force of the water spray gun 5 to the flow path switching valve 32 and switches the direction in which the fire extinguishing water 55 is introduced into the swivel control unit 11, thereby spraying the water spray gun 5. Are alternately turned right and left at a predetermined turning angle, and the fire-extinguishing water 55 is sprinkled. Further, if the manual operation handle 9 is operated, the fire extinguishing water 55 can be sprayed from the water spray gun 5 manually. Furthermore, the fire hose 56 can be connected to the fire hydrant 54 to spray the fire water 55 from the fire hose 56.

従って、この発明によれば、消火水５５の一部を駆動源として散水銃５を旋回させるための動力を発生しているので、駆動モータなどの部品、その電気配線、さらにはその駆動制御手段が不要となり、コストの低減および装置のコンパクト化が図られる。さらに、電気的な制御が不要であるとともに、幅員の狭い場所にも設置できるので、地震による火災が発生した場合に地域を守る延焼防止システムなどへの適用に好適である。
ギア室２１が旋回制御ユニット１１に備えられているので、ギア比を変更することで簡易に散水銃５の旋回速度を調整することができる。 Therefore, according to the present invention, the power for rotating the water spray gun 5 is generated by using a part of the fire extinguishing water 55 as a drive source. Therefore, components such as a drive motor, its electrical wiring, and its drive control means Is eliminated, and the cost can be reduced and the apparatus can be made compact. Furthermore, since electrical control is unnecessary and it can be installed in a narrow space, it is suitable for application to a fire spread prevention system that protects the area in the event of a fire due to an earthquake.
Since the gear chamber 21 is provided in the turning control unit 11, the turning speed of the watering gun 5 can be easily adjusted by changing the gear ratio.

旋回制御ユニット１１の回転駆動機構として、回転軸１９に偏心リング２０を取り付け、周方向に等角ピッチで配列された第１乃至第３シリンダ１５ａ〜１５ｃ内に消火水５５を給水して第１乃至第３ピストン１６ａ〜１６ｃで順次偏心リング２０を押圧するようにしているので、消火水５５の水圧を効果的に回転力に変換でき、大きな回転トルクが得られる。 As a rotation drive mechanism of the turning control unit 11, an eccentric ring 20 is attached to the rotation shaft 19, and the first to third cylinders 15a to 15c arranged at an equiangular pitch in the circumferential direction are supplied with the fire extinguishing water 55 to be the first. Since the eccentric rings 20 are sequentially pressed by the third pistons 16a to 16c, the water pressure of the fire extinguishing water 55 can be effectively converted into a rotational force, and a large rotational torque can be obtained.

また、消火水５５を第１および第２作動室２６，２７から第１乃至第３送水管１４ａ〜１４ｃを介して第１乃至第３シリンダ１５ａ〜１５ｃに導入して第１乃至第３ピストン１６ａ〜１６ｃを伸長させている。そして、第１乃至第３ピストン１６ａ〜１６ｃの縮小動作時には、消火水５５を第１乃至第３シリンダ１５ａ〜１５ｃから第１乃至第３送水管１４ａ〜１４ｃを介して第１および第２作動室２６，２７に戻している。そこで、第１乃至第３シリンダ１５ａ〜１５ｃに対する消火水の導入経路と排出経路とが１経路となり、構成の簡素化が図られ、低コスト化が図られる。 Also, the fire extinguishing water 55 is introduced from the first and second working chambers 26 and 27 to the first to third cylinders 15a to 15c via the first to third water supply pipes 14a to 14c, and the first to third pistons 16a. ~ 16c is elongated. When the first to third pistons 16a to 16c are contracted, the fire extinguishing water 55 is supplied from the first to third cylinders 15a to 15c via the first to third water supply pipes 14a to 14c. 26 and 27. Therefore, the fire-extinguishing water introduction path and the discharge path for the first to third cylinders 15a to 15c become one path, the configuration is simplified, and the cost is reduced.

なお、上記実施の形態では、第１流通路３０ａを、第１切り欠き２３の軸方向一端側と、回転軸１９の外周面と第２筐体１８の内周面との間の隙間と、で構成するものとしているが、第１流通路３０ａはこの構成に限定されるものではなく、回転軸１９の回転に拘わらず第１給排口３１ａと第１作動室２６とを連通していればよく、例えば第１切り欠きの軸方向一端側に替えて環状溝を回転軸に形成してもよい。また、第２流通路３０ｂについても、同様である。 In the above-described embodiment, the first flow passage 30a includes the gap between the one end side in the axial direction of the first notch 23, the outer peripheral surface of the rotary shaft 19 and the inner peripheral surface of the second housing 18, and However, the first flow passage 30a is not limited to this configuration, and the first supply / exhaust port 31a and the first working chamber 26 can communicate with each other regardless of the rotation of the rotary shaft 19. For example, an annular groove may be formed on the rotating shaft instead of the one end side in the axial direction of the first notch. The same applies to the second flow passage 30b.

この発明の一実施の形態に係る旋回方式散水銃装置の全体構成を模式的に示す側断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view schematically showing an overall configuration of a swirling watering gun apparatus according to an embodiment of the present invention. この発明の一実施の形態に係る旋回方式散水銃装置の動作状態を示す側断面図である。It is a sectional side view which shows the operation state of the turning type watering gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置における駆動用シリンダの動作を説明する図である。It is a figure explaining operation | movement of the cylinder for a drive in the turning type watering gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置における散水銃の連結構造を説明する要部断面図である。It is principal part sectional drawing explaining the connection structure of the watering gun in the turning type watering gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置における旋回制御ユニットを示す図である。It is a figure which shows the turning control unit in the turning type water spray gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置における旋回制御ユニットの構造を説明する断面図である。It is sectional drawing explaining the structure of the turning control unit in the turning-type water spray gun apparatus which concerns on one embodiment of this invention. 図６のＶＩＩ−ＶＩＩ矢視断面図である。It is VII-VII arrow sectional drawing of FIG. 図６のＶＩＩＩ−ＶＩＩＩ矢視断面図である。It is a VIII-VIII arrow directional cross-sectional view of FIG. 図６のＩＸ−ＩＸ矢視断面図である。It is IX-IX arrow sectional drawing of FIG. この発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットにおける回転軸ブロックの作動室の構成を説明する断面図である。It is sectional drawing explaining the structure of the working chamber of the rotating shaft block in the turning control unit of the turning type water spray gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットにおける偏心リングとピストンとの位置関係を説明する断面図である。It is sectional drawing explaining the positional relationship of the eccentric ring and piston in the turning control unit of the turning type water spray gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットの動作を説明する図である。It is a figure explaining operation | movement of the turning control unit of the turning-type water spray gun apparatus which concerns on one embodiment of this invention. この発明の一実施の形態に係る旋回方式散水銃装置の旋回制御ユニットの動作を説明する図である。It is a figure explaining operation | movement of the turning control unit of the turning-type water spray gun apparatus which concerns on one embodiment of this invention.

符号の説明Explanation of symbols

３鉛直配管、５散水銃、６縦配管、７散水ノズル、１１旋回制御ユニット（動力発生機構部）、１２シリンダブロック、１３第１筐体、１４ａ第１送水管、１４ｂ第２送水管、１４ｃ第３送水管、１５ａ第１シリンダ、１５ｂ第２シリンダ、１５ｃ第３シリンダ、１６ａ第１ピストン、１６ｂ第２ピストン、１６ｃ第３ピストン、１７回転軸ブロック、１８第２筐体、１９回転軸、２０偏心リング、２３第１切り欠き、２３ａ底面、２４第２切り欠き、２４ａ底面、２６第１作動室、２７第２作動室、２８ａ第１貫通孔、２８ｂ第２貫通孔、２８ｃ第３貫通孔、３２流路切換バルブ（動力発生機構部）、４２動力変換・伝達機構部（動力発生機構部）、４３第１かさ歯車、４４第２かさ歯車、４５切り換えレバー（流路切換バルブ駆動機構部）、５５消火水。 3 Vertical piping, 5 Sprinkling gun, 6 Vertical piping, 7 Sprinkling nozzle, 11 Turning control unit (power generation mechanism part), 12 Cylinder block, 13 1st housing | casing, 14a 1st water supply pipe, 14b 2nd water supply pipe, 14c 3rd water pipe, 15a 1st cylinder, 15b 2nd cylinder, 15c 3rd cylinder, 16a 1st piston, 16b 2nd piston, 16c 3rd piston, 17 rotating shaft block, 18 2nd housing, 19 rotating shaft, 20 Eccentric ring, 23 First notch, 23a Bottom surface, 24 Second notch, 24a Bottom surface, 26 First working chamber, 27 Second working chamber, 28a First through hole, 28b Second through hole, 28c Third through hole Hole, 32 channel switching valve (power generation mechanism), 42 power conversion / transmission mechanism (power generation mechanism), 43 first bevel gear, 44 second bevel gear, 5 switching lever (flow passage changeover valve drive mechanism), 55 extinguishing water.

Claims

管路方向を鉛直にして配設されて消火水が供給される鉛直配管と、
上記鉛直配管の上部開口部に管路方向周りに回動可能に連結された縦配管および該縦配管の上部に連結された散水ノズルを有する散水銃と、
上記消火水の一部を駆動源とし、正／逆回転トルクを発生する動力発生機構部と、
上記動力発生機構部により発生された上記正／逆回転トルクを上記縦配管の管路方向周りの回動トルクに変換して該縦配管に伝達し、上記散水銃を旋回させる動力変換・伝達機構部と、を備え、
上記動力発生機構部は、
回転軸、軸心を上記回転軸の軸心からずらして該回転軸の端部に固着された偏心リング、上記消火水の一部が導入される第１および第２作動室、および、それぞれピストンが伸縮自在に配設され、該ピストンの伸長方向を上記回転軸の軸心に向けて上記偏心リングを囲繞するように該回転軸の軸心周りに１２０°ピッチで配列され、上記第１作動室に導入された上記消火水が導入されたときに、各ピストンを伸長させて上記偏心リングを押圧し、上記回転軸に正回転トルクを付与し、上記第２作動室に導入された上記消火水が導入されたときに、各ピストンを伸長させて上記偏心リングを押圧し、上記回転軸に逆回転トルクを付与する３つのシリンダを有する旋回制御ユニットと、
上記消火水を上記第１作動室に導入する流路と該消火水を上記第２作動室に導入する流路とを切り換える流路切換バルブと、
上記散水銃が鉛直配管の管路方向周りの一方向に所定角度旋回したときに、上記散水銃の旋回力を上記流路切換バルブに伝達して、上記消火水を上記第１作動室に導入する流路から該消火水を上記第２作動室に導入する流路に切り換えさせ、上記散水銃が鉛直配管の管路方向周りの他方向に所定角度旋回したときに、上記散水銃の旋回力を上記流路切換バルブに伝達して、上記消火水を上記第２作動室に導入する流路から該消火水を上記第１作動室に導入する流路に切り換えさせる流路切換バルブ駆動機構部と、
を有していることを特徴とする旋回方式散水銃装置。 A vertical pipe that is arranged with the pipeline direction vertical and to which fire-extinguishing water is supplied;
A water spray gun having a vertical pipe connected to the upper opening of the vertical pipe so as to be rotatable around a pipe line, and a water spray nozzle connected to the top of the vertical pipe;
A power generation mechanism that generates a forward / reverse rotational torque using a part of the fire water as a drive source;
A power conversion / transmission mechanism that converts the forward / reverse rotational torque generated by the power generation mechanism into a rotational torque around the pipe direction of the vertical pipe, transmits the torque to the vertical pipe, and turns the water gun. And comprising
The power generation mechanism is
A rotating shaft, an eccentric ring that is displaced from the axis of the rotating shaft and fixed to an end of the rotating shaft, first and second working chambers into which a part of the fire-extinguishing water is introduced, and a piston, respectively Are arranged at a pitch of 120 ° around the axis of the rotary shaft so as to surround the eccentric ring with the direction of extension of the piston directed toward the axis of the rotary shaft. When the fire extinguishing water introduced into the chamber is introduced, each piston is extended to press the eccentric ring, a positive rotational torque is applied to the rotating shaft, and the fire extinguishing introduced into the second working chamber A swivel control unit having three cylinders that, when water is introduced, extends each piston to press the eccentric ring and applies reverse rotational torque to the rotating shaft;
A flow path switching valve for switching between a flow path for introducing the fire-extinguishing water into the first working chamber and a flow path for introducing the fire-extinguishing water into the second working chamber;
When the water spray gun turns at a predetermined angle in one direction around the pipe direction of the vertical pipe, the turning force of the water gun is transmitted to the flow path switching valve, and the fire extinguishing water is introduced into the first working chamber. When the water spray gun is switched to a flow path for introducing the fire-extinguishing water into the second working chamber and the water spray gun swirls at a predetermined angle around the pipe direction of the vertical pipe, the turning force of the water spray gun Is transmitted to the flow path switching valve, and the flow path switching valve drive mechanism unit is configured to switch from the flow path for introducing the fire-extinguishing water into the second working chamber to the flow path for introducing the fire-extinguishing water into the first working chamber. When,
A swivel-type watering gun apparatus characterized by comprising:

上記旋回制御ユニットは、
上記回転軸を回転自在に支持する筐体と、
上記回転軸の軸心と上記偏心リングの軸心を通る平面と平行な、該平面を挟んで相対し、かつ該平面から等距離の底面を有するように該回転軸に形成され、それぞれ上記第１作動室および上記第２作動室を構成する第１切り欠きおよび第２切り欠きと、
軸方向における上記第１切り欠きおよび上記第２切り欠きの形成領域内に１２０°ピッチで上記筐体に穿設された３つの貫通孔と、
上記３つの貫通孔のそれぞれを上記３つのシリンダの対応するシリンダに連結する３つの送水管と、を備え、
上記ピストンの一つが上記偏心リングを押圧しつつ最大伸長位置まで伸長したときに、当該ピストンが配設されている上記シリンダに上記消火水を導入する上記第１又は第２作動室を構成する上記第１又は第２切り欠きの底面が、当該シリンダに上記消火水を導入する上記貫通孔の孔中心と、当該貫通孔の上記回転軸の回転方向の前方に位置する上記貫通孔の孔中心とを結ぶ位置に位置していることを特徴とする請求項１記載の旋回方式散水銃装置。 The turning control unit is
A housing that rotatably supports the rotating shaft;
The rotating shaft is formed on the rotating shaft so as to have a bottom surface that is parallel to a plane passing through the axis of the eccentric ring and the axis of the eccentric ring, is opposed to the plane, and is equidistant from the plane. A first cutout and a second cutout constituting the first working chamber and the second working chamber;
Three through holes drilled in the housing at a pitch of 120 ° in the formation region of the first notch and the second notch in the axial direction;
Three water pipes connecting each of the three through holes to the corresponding cylinder of the three cylinders,
The first or second working chamber for introducing the fire-extinguishing water into the cylinder in which the piston is disposed when one of the pistons is extended to the maximum extension position while pressing the eccentric ring. The bottom surface of the first or second notch has a hole center of the through hole that introduces the fire-extinguishing water into the cylinder, and a hole center of the through hole that is positioned forward in the rotation direction of the rotation shaft of the through hole. The swivel-type water spray gun apparatus according to claim 1, wherein the swivel-type water spray gun apparatus is located at a position connecting the two.