JP4511752B2

JP4511752B2 - Fryer oil drainer

Info

Publication number: JP4511752B2
Application number: JP2001066885A
Authority: JP
Inventors: 秀樹雉本; 恒靖早川
Original assignee: パロマ工業株式会社
Priority date: 2001-03-09
Filing date: 2001-03-09
Publication date: 2010-07-28
Anticipated expiration: 2021-03-09
Also published as: JP2002263009A

Description

【０００１】
【発明の属する技術分野】
この発明は、営業用フライヤー装置において、特に、ショートニングとして低温で固化するラードを用いた場合などに排油貯留タンクへの導入路が詰まるのを未然に防いだフライヤーの排油装置に関する。
【０００２】
【従来の技術】
営業用の多槽型フライヤー装置においては、毎日又は使用頻度によっては１回の揚げ物作業が終了した後、油槽内の油を一旦排油貯留タンク内へ導いて集め、排油貯留タンク内でこれを濾過しポンプなどで各々の油槽へ汲み上げて再び使用するといった手順で揚げ物作業が行われている。
しかし、連結された多槽型のフライヤー装置の場合、各々の油槽内の油を導入路を介して１つ又は２つの排油貯留タンクに導いて集めオイルクリーニングを行っている。この場合、ショートニングとして５０℃〜６０℃の低温で固化するラードを用いた揚げ物では、排油貯留タンクへの導入路の屈折部、たとえば、略直角状となる接続部がすくい残った長いポテト、揚げかすなどの食材その他の物の混入と相まって早期に詰まってしまうことがある。
そこで、従来は図７に例示されているように、連結された２槽型フライヤーの排油装置において、２つの油槽１０１、１０２からの排油が排油用開閉弁１０７、１０８を有する排油管１０４、１０５と排油の一時溜り部１１０、１１１を介して接続される連結管１０３との略直角状となる接続部１２１の詰まりが原因で排油できないことがあるため、断面角形の連結管１１３の上面に点検窓１２２を設け、排油時に点検窓１２２のパッキング付きの蓋を外しこの点検窓１２２から任意の治具を用いて導入路の略直角状となる接続部１２１内に付着堆積している固化したラードなどを人手により掻き出し除去して排油が流れる道筋を設けているのが現状である。
【０００３】
【発明が解決しようとする課題】
しかしながら、こうした従来の技術では、狭い点検窓１２２からの人手による掻き出し作業であるため、流路確保に必要な作業が安定して行えず、場合によっては作業中に１５０℃〜１８０℃もある高温の排油が点検窓１２２からあふれ出ることもあることから、この作業には困難性及び危険性がともない、また、蓋の締め忘れによる排油あふれも多いといった問題点があった。
この発明のフライヤーの排油装置は上記課題を解決し、常時円滑に流路が確保でき、かつ、安全に排油できるフライヤーの排油装置の提供を目的としている。
【０００４】
【課題を解決するための手段】
上記課題を解決するこの発明の請求項１のフライヤーの排油装置は、
連結された多槽型フライヤーの排油装置において、
油槽からの排油を排油貯留タンクへ導く導入路の屈折部に排油当初において排油の流れ方向に沿って進退移動可能な棒状のロッドを備えたことを要旨とする。
【０００５】
上記課題を解決するこの発明の請求項２のフライヤーの排油装置は、上記請求項１記載のフライヤーの排油装置において、
上記棒状のロッドは油槽の排油用開閉弁の開弁動作と連動して進退移動するようにしたことを要旨とする。
【０００６】
上記課題を解決するこの発明の請求項３のフライヤーの排油装置は、上記請求項１及び２記載のフライヤーの排油装置において、
上記排油用開閉弁と棒状のロッドとはリンク機構を介して連動するようにしたことを要旨とする。
【０００７】
上記構成を有するこの発明の請求項１記載のフライヤーの排油装置は、連結された多槽型のフライヤー装置において、油槽からの排油を排油貯留タンクへ導く導入路のラードなどが最も詰まりやすい屈折部、たとえば、略直角状となる接続部などに排油当初において排油の流れ方向に沿って進退移動可能な棒状のロッドを備えたので、各々の油槽から排油貯留タンクへ導かれる排油導入路の略直角状に屈折した接続部内にラードなどが付着堆積していても排油当初に接続部内を棒状のロッドが排油の流れ方向に沿って進退移動することで棒状のロッドにより排油が流れる道筋をつけるため確実に流路が確保される。この結果、排油時には棒状のロッドにより形成された道筋に沿って１５０℃〜１８０℃の高温の排油が流れることにより固化したラードなども溶けて一緒に流れ出てしまい流路詰まりは未然に防止される。
【０００８】
上記構成を有するこの発明の請求項２記載のフライヤーの排油装置は、上記棒状のロッドは油槽の排油用開閉弁の開弁動作と連動して進退移動するようにしたので、油槽からの排油動作と棒状のロッドの進退移動動作とが排油当初に同期して行われ、排油に必要な道筋が開弁と同時に形成される。この結果、排油当初に流路の確保が確実に行える。
【０００９】
上記構成を有するこの発明の請求項３記載のフライヤーの排油装置は、上記棒状のロッドと排油用開閉弁とはリンク機構を介して連動するようにしたので、たとえば、略平行四辺形状に配したリンク杆によるリンク機構で排油用開閉弁の弁軸の回転運動を直線運動に変えて棒状のロッドに伝達し、たとえば、リンク機構に備えた操作把手を手動で左右へ一定のストロークだけ回動操作すると、リンク機構によって排油用開閉弁の弁軸を略９０度左右へ回動すると同時に棒状のロッドを直線的に進退移動して導入路の屈折した接続部などに排油が流れる道筋を棒状のロッドで形成する。その後リンク機構を排油用開閉弁の開弁位置で停止すると棒状のロッドは後退位置で停止する。この結果、油槽の排油動作と棒状のロッドの進退移動動作とが排油当初にリンク機構を介して同期的に正確、かつ、軽快に行われ、導入路の屈折した接続部内などにラードなどが詰まっていても排油時には棒状のロッドで必ず流路の道筋を形成する。なお、上記操作把手による左右への回動操作は数回くり返すのが望ましく、この間に排油用開閉弁も開閉されるので、排油は徐々に流出し排油当初においては一気に流出することはない。
【００１０】
【発明の実施の形態】
以上説明したこの発明の構成、作用を一層明確にするために、以下この発明のフライヤーの排油装置の好適な実施の形態について図面を参照して説明する。
【００１１】
先ず、図１を参照して一実施形態に係るフライヤーの排油装置の構成、作用について説明する。
図１は連結された２槽型フライヤーの排油装置を示した斜視図であって、図１において、下部が漏斗状に形成されている２つの油槽１、２が少許の間隙を存して並設され、該油槽１、２の下端排油口に斜状（約３０度程度の傾斜）に接続された排油管４、５には排油用開閉弁７、８が装備され、上記排油管４、５を排油の一時溜り部１０、１１にそれぞれ接続し、２つの油槽１、２の排油の一時溜り部１０、１１を丸パイプによる連結管１３で接続連通せしめ、他方の排油の一時溜り部１１の下部に排油流出口１４を備え、この排油の一時溜り部１１の下方には排油貯留タンク１５を備えた２槽型フライヤーの排油装置が構成されている。なお、上記排油貯留タンク１５にはオイルクリーナ（たとえば、ペーパーフィルター）が内蔵され（図示せず）、また、上記２つの油槽１、２へクリーナ後の油を汲み上げるポンプ１６を備え、該ポンプ１６に吸込み用のパイプ１７と汲み上げ用のパイプ１８とが接続され、汲み上げ用パイプ１８の先端部には各々の油槽１、２へ油の給断を行う給油栓１９、２０を備えている。２５、２６は排油用開閉弁７、８の操作用把手である。そして、上記排油用開閉弁７、８にはコック式開閉弁を用いている。
【００１２】
上記構成の２槽型フライヤーの排油装置において、上記一方の油槽１の排油管４と連結管１３は排油の一時溜り部１０を介して直交方向に接続連通されており、この直角状となる接続部２１に上記連結管１３の軸線上に排油の流れ方向に沿って直線的に進退移動する棒状のロッド２２が備えられている。この棒状のロッド２２は上記一時溜り部１０の一側壁に丸パイプからなる連結管１３と同一軸線を保って備えられたガイド短管２３にその先端棒状部２２ａがスライド可能に挿入支持され、棒状のロッド２２の先端棒状部２２ａは連結管１３と排油の一時溜り部１０との接続部位を突き抜ける状態に進退移動し、かつ、連結管１３の中心位置に配置されている。そして、棒状のロッド２２の先端棒状部２２ａとガイド短管２３との間にはパッキング（Ｏリング）を介在して油漏れのないように挿通支持されている。また、上記棒状のロッド２２の基端部２２ｂはＵ字状に屈曲されて手前側に位置され、この基端部２２ｂの端部を前方へ屈折して操作用の把手２４を形成している。なお、上記棒状のロッド２２の進退移動ストロークは略１００ｍｍ程度とするのが望ましい。
【００１３】
上記構成において、揚げ物作業が終了した後、２つの油槽１、２の排油をする場合、先ず、棒状のロッド２２を基端部２２ｂの把手２４を持って手動で左右へ数回進退移動させ、接続部２１内に付着堆積しているラードなどに棒状のロッド２２の先端棒状部２２ａで流路の道筋を形成する。その後、２つの油槽１、２の排油用開閉弁７、８を操作用把手２５、２６で開弁すると、一方の油槽１の排油は油槽１から排油用開閉弁７を有する排油管４→一時溜り部１０→連結管１３→一時溜り部１１→排油流出口１４を通って排油貯留タンク１５に流入するが、先にスライドさせた棒状のロッド２２により直角状の接続部２１には流路が確保されているので、排油の流出は詰まることなく円滑に行われる。また、他方の油槽２の排油は油槽２から排油用開閉弁８を有する排油管５→一時溜り部１１→排油流出口１４を通って排油貯留タンク１７に直接流入するものである。したがって、上記２つの油槽１、２の排油は１つの排油貯留タンク１５に集められ濾過される。
【００１４】
次に、図２に示されている実施形態に係るフライヤーの排油装置について説明する。なお、図１の実施形態と同一部分には同一符号を付して説明する。このフライヤーの排油装置は、連結された３つの油槽１、２、３をもつ３槽型フライヤーの排油装置であって、図２において、下部が漏斗状に形成されている３つの油槽１、２、３が少許の間隙を存して並設され、該油槽１、２、３の下端排油口に斜状（約３０度程度の傾斜）に接続された排油管４、５、６には排油用開閉弁７、８、９が装備され、上記排油管４、５、６を排油の一時溜り部１０、１１、１２にそれぞれ接続し、かつ、３つの油槽１、２、３の排油の一時溜り部１０、１１、１２のうち中央の排油の一時溜り部１１と一方の排油の一時溜り部１０を丸パイプによる連結管１３で接続連通せしめるとともに、中央の一時溜り部１１と他方の一時溜り部１２も同様に丸パイプによる導入管２７で接続連通せしめ、また、中央の排油の一時溜り部１１の下部に排油流出口１４を備え、この排油の一時溜り部１１の下方には排油貯留タンク１５を備えた３槽型フライヤーの排油装置が構成されている。なお、上記排油貯留タンク１５にはオイルクリーナ（たとえば、ペーパーフィルター）が内蔵され（図示せず）、また、上記３つの油槽１、２、３へクリーナ後の油を汲み上げるポンプ１６を備え、該ポンプ１６に吸込み用のパイプ１７と汲み上げ用のパイプ１８が接続され、汲み上げ用パイプ１８の先端部には各々の油槽１、２、３への油の給断を行う給油栓１９、２０、２８がそれぞれ備えられている。２５、２６、２９は排油用開閉弁７、８、９の操作用把手である。そして、上記排油用開閉弁７、８、９にはコック式開閉弁を用いている。
【００１５】
上記構成の３槽型フライヤーの排油装置において、上記油槽１の排油管４と連結管１３は排油の一時溜り部１０を介して直交方向に接続連通されており、この直角状となる接続部２１に上記連結管１３の軸線上に排油の流れ方向に沿って進退移動する棒状のロッド２２が備えられている。また、上記油槽３の排油管６と連結管２７は排油の一時溜り部１２を介して直交方向に接続連通されており、この直角状となる接続部３０に上記連結管２７の軸線上に排油の流れ方向に沿って進退移動する棒状のロッド３１が備えられている。これらの棒状のロッド２２、３１は上記両側の一時溜り部１０、１２の外側壁に連結管１３、２７と同一軸線を保って備えられたガイド短管２４、３２にその先端棒状部２２ａ、３１ａがスライド可能に挿入支持され、棒状のロッド２２、３１の先端棒状部２２ａ、３１ａは連結管１３、２７と排油の一時溜り部１０、１２との接続部位を突き抜ける状態に進退移動し、かつ、連結管１３、２７の中心位置に配置されている。そして、棒状のロッド２２、３１の先端棒状部２２ａ、３１ａとガイド短管２３、３２との間にはパッキング（Ｏリング）を介在して油漏れのないように挿通支持されている。また、上記棒状のロッド２２、３１の基端部２２ｂ、３１ｂはＵ字状に屈曲されて手前側に位置され、この基端部２２ｂ、３１ｂの端部を前方に屈折して操作用の把手２４、３３を形成している。なお、上記各棒状のロッド２２、３１の進退移動ストロークは略１００ｍｍ程度とするのが望ましい。
【００１６】
上記構成において、揚げ物作業が終了した後、３つの油槽１、２、３の排油をする場合、先ず、両側の棒状のロッド２２、３１を基端部２２ｂ、３１ｂの把手２４、３３を持って手動で左右へそれぞれを数回進退移動させ、接続部２１、３０内に付着堆積しているラードなどに棒状のロッド２２、３１の先端棒状部２２ａ、３１ａで流路の道筋を形成する。その後、３つの油槽１、２、３の排油用開閉弁７、８、９を操作用把手２５、２６、２９で開弁すると、両側の油槽１、３の排油は油槽１、３から排油用開閉弁７、９を有する排油管４、６→一時溜り部１０、１２→連結管１３、２７→中央の一時溜り部１１→排油流出口１４を通って排油貯留タンク１５に流入するが、先にスライドさせた棒状のロッド２２、３１により直角状の接続部２１、３０には流路が確保されているので、排油の流出は詰まることなく円滑に行われる。また、中央の油槽２の排油は油槽２から排油用開閉弁８を有する排油管５→一時溜り部１１→排油流出口１４を通って排油貯留タンク１７に直接流入するものである。したがって、上記３つの油槽１、２、３の排油は１つの排油貯留タンク１５に集められ濾過される。
【００１７】
さらに、図３に示されている実施形態に係るフライヤーの排油装置について説明する。なお、図１の実施形態と同一部分には同一符号を付して説明する。このフライヤーの排油装置は、連結された３つの油槽１、２、３をもつ３槽型フライヤーの排油装置であって、図３において、下部が漏斗状に形成されている３つの油槽１、２、３が少許の間隙を存して並設され、該油槽１、２、３の下端排油口に斜状（約３０度程度の傾斜）に接続された排油管４、５、６には排油用開閉弁７、８、９が装備され、上記排油管４、５、６を排油の一時溜り部１０、１１、１２にそれぞれ接続し、かつ、３つの油槽１、２、３の排油の一時溜り部１０、１１、１２のうち中央の排油の一時溜り部１１と一方の排油の一時溜り部１０を丸パイプによる連結管１３で接続連通せしめ、中央の排油の一時溜り部１１と他方の一時溜り部１２の下部に排油流出口１４、３４を備え、これらの排油の一時溜り部１１、１２との間の下方には排油貯留タンク１５を備えた３槽型フライヤーの排油装置が構成されている。なお、上記排油貯留タンク１５にはオイルクリーナ（たとえば、ペーパーフィルター）が内蔵され（図示せず）、また、上記３つの油槽１、２、３へクリーナ後の油を汲み上げるポンプ１６を備え、該ポンプ１６に吸込み用のパイプ１７と汲み上げ用のパイプ１８が接続され、汲み上げ用パイプ１８の先端部には各々の油槽１、２、３への油の給断を行う給油栓１９、２０、２８がそれぞれ備えられている。２５、２６、２９は排油用開閉弁７、８、９の操作用把手である。そして、上記排油用開閉弁７、８、９にはコック式開閉弁を用いている。
【００１８】
上記構成の３槽型フライヤーの排油装置において、上記一方の油槽１の排油管４と連結管１３は排油の一時溜り部１０を介して直交方向に接続連通されており、この直角状となる接続部２１に上記連結管１３の軸線上に排油の流れ方向に沿って直線的に進退移動する棒状のロッド２２が備えられている。この棒状のロッド２２は上記一時溜り部１０の外側壁に丸パイプからなる連結管１３と同一軸線を保って備えられたガイド短管２３にその先端棒状部２２ａがスライド可能に挿入支持され、棒状のロッド２２の先端棒状部２２ａは連結管１３と排油の一時溜り部１０との接続部位を突き抜ける状態に進退移動し、かつ、連結管１３の中心位置に配置されている。そして、棒状のロッド２２の先端棒状部２２ａとガイド短管２３との間にはパッキング（Ｏリング）を介在して油漏れのないように挿通支持されている。また、上記棒状のロッド２２の基端部２２ｂはＵ字状に屈曲されて手前側に位置され、この基端部２２ｂの端部を前方へ屈折して操作用の把手２４を形成している。なお、上記棒状のロッド２２の進退移動ストロークは略１００ｍｍ程度とするのが望ましい。
【００１９】
上記構成において、揚げ物作業が終了した後、３つの油槽１、２、３の排油をする場合、２つの油槽２、３はその排油用開閉弁８、９を開弁すると、排油は排油用開閉弁８、９を有する排油管５、６からその一時溜り部１１、１２を介して排油流出口１４、３４から排油貯留タンク１７へそれぞれ直接流入する。一方、残る油槽１の排油は、先ず、棒状のロッド２２を基端部２２ｂの把手２４を持って手動で左右へ数回進退移動させ、接続部２１内に付着堆積しているラードなどに棒状のロッド２２の先端棒状部２２ａで流路の道筋を形成した後、その排油用開閉弁７を操作用把手２５で開弁すると、油槽１の排油は油槽１から排油用開閉弁７を有する排油管４→排油の一時溜り部１０→連結管１３→排油の一時溜り部１１→排油流出口１４を通って排油貯留タンク１５に流入するが、先にスライドさせた棒状のロッド２２により直角状の接続部２１には流路が確保されているので、排油の流出は詰まることなく円滑に行われる。したがって、上記３つの油槽１、２、３の排油は１つの排油貯留タンク１５に集められ濾過されるのである。
【００２０】
次に、図４に示されている実施形態に係るフライヤーの排油装置は、上記棒状のロッドと排油用開閉弁とをリンク機構で連動するように構成したフライヤーの排油装置であって、排油用開閉弁の弁軸の回転運動をリンク機構で直線運動に変えて棒状のロッドに伝達するか又は反対に棒状のロッドの直線運動をリンク機構で回転運動に変えて排油用開閉弁の弁軸に伝達することによって、棒状のロッドが排油用開閉弁の開閉動作と連動して進退移動するようにしたものである。
詳しくは、図４及び図５において、リンク機構Ａは、排油用開閉弁７の弁軸３５に基端が固定された上部リンク杆３６と固定リンク杆３７に基端が支軸３８により枢支された下部リンク杆３９及び棒状のロッド２２の基端部２２ｃが挿通され止めナット４６で軸線方向に支持されるスライド長孔４０を側面板４１に有する連結リンク杆４２とからなり、上記上部リンク杆３６の先端部と下部リンク杆３９の先端部に連結リンク杆４２の上下端部を支軸４３、４４により枢支して平行四辺形状に構成されており、下部リンク杆３９の先端部に一体形成された操作把手４５で上記リンク機構Ａを図示下方へ略９０度（θ）だけ回動変位せしめることにより、上部リンク杆３６で排油用開閉弁７を開弁すると同時に棒状のロッド２２を連結リンク杆４２で図示左方へ一定のストローク（Ｌ１−Ｌ２）だけ前進移動させる。このとき、棒状のロッド２２は連結リンク杆４２のスライド長孔４０に沿ってスライドしながら側面板４１で図示左方へ押動されるため、棒状のロッド２２は図示左方へ一定のストローク（Ｌ１−Ｌ２）だけ移動するのである（図５の実線の状態から鎖線の状態参照）。
この状態から操作把手４５で上記リンク機構Ａを図示上方へ略９０度回動変位させると、上部リンク杆３６で排油用開閉弁７を閉弁すると同時に棒状のロッド２２を連結リンク杆４２で図示右方へ一定のストローク（Ｌ１−Ｌ２）だけ後退移動させる。このときも棒状のロッド２２は連結リンク杆４２のスライド長孔４０に沿ってスライドしながら側面板４１で図示右方へ引張り移動されるので、棒状のロッド２２は図示右方へ一定のストローク（Ｌ１−Ｌ２）だけ移動するのである（図５の鎖線の状態から実線の状態参照）。
【００２１】
上記構成において、排油時には操作把手４５の上下動を数回くり返すことによって棒状のロッド２２により道筋を作り接続部２１の流路を確保し排油時の詰まりをなくすのである。このとき、排油用開閉弁７も同時に開閉動作し徐々に排油を始める。
上記排油用開閉弁９と棒状のロッド３１とをリンク機構で連動させる場合もその他の構成、作用は図１の実施の形態と同一であるので、同一部分に同一符号を付してその説明は省略する。
【００２２】
図６は連結された２槽型フライヤーの排油装置において、油槽１、２のそれぞれを仕切板４７、４８で２つに分割し揚げ物をする食材などによって相隣接する油槽１ａ、１ｂ及び２ａ、２ｂの油の温度を変えることができる個別運転式のフライヤーとしたものであって、その他の構成、作用は図１の実施の形態と同一につき、同一部分に同一符号を付してその説明は省略する。
【００２３】
以上この発明の実施の形態の例について説明したが、この発明はこうした実施の形態のものに何等限定されず、この発明の要旨を逸脱しない範囲において種々なる形態で実施しうることは勿論である。
【００２４】
【発明の効果】
この発明は以上説明したような形態で実施され、以下に記載されるような効果を奏する。
【００２５】
この発明のフライヤーの排油装置によれば、多槽型のフライヤー装置において、排油通路のラードなどが最も詰まりやすい屈折した接続部などに排油当初において棒状のロッドにより排油が流れる道筋をつけるため、たとえ、接続部がラードなどの付着堆積によって詰まっていても確実に流路が確保される。したがって、排油時には高温の排油がラードなどとともにスムーズに排油されるから、従来のように高温の排油があふれ出るといった危険はなく安全に排油できる。
【００２６】
また、油槽からの排油動作と棒状のロッドの進退動作とが排油当初において同期的に行われるから、排油に必要な道筋が開弁と同時に形成される。したがって、排油に必要な流路の確保が確実に行われて円滑、かつ、安全な排油ができる。
【００２７】
さらに、排油当初の棒状のロッドと排油用開閉弁の連動をリンク機構で行うようにしたから、ワンタッチ操作で排油用開閉弁の開弁と同時に棒状のロッドによる流路の道筋が確実に形成される。したがって、排油時には必ず棒状のロッドが作動し流路詰まりは未然に防止される。
【図面の簡単な説明】
【図１】２槽型フライヤーの排油装置の一例を示した要部の概略斜視図である。
【図２】３槽型フライヤーの排油装置の一例を示した要部の概略斜視図である。
【図３】３槽型フライヤーの排油装置の異なる例を示した要部の概略斜視図である。
【図４】排油用開閉弁と棒状のロッドとの連動手段としてのリンク機構を備えた場合の一例を示した概略斜視図である。
【図５】その要部だけの平面図である。
【図６】油槽を２つに分割した場合の一例を示した概略斜視図である。
【図７】従来例の概略斜視図である。
【符号の説明】
１…油槽
４…排油管
７…排油用開閉弁
１０…一部溜り部
１３…連結管
２２…棒状のロッド
Ａ…リンク機構[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a fryer oil draining apparatus that prevents an introduction path to an oil drainage storage tank from being clogged in advance when a lard that solidifies at a low temperature is used as a shortening.
[0002]
[Prior art]
In a commercial multi-tank type fryer device, after one frying operation is completed every day or depending on the frequency of use, the oil in the oil tank is once guided into the oil storage tank and collected in the oil storage tank. The fried foods are being processed by the procedure of filtering, pumping it up to each oil tank with a pump and using it again.
However, in the case of the connected multi-tank type fryer apparatus, the oil in each oil tank is guided to one or two drained oil storage tanks through the introduction path to collect and clean the oil. In this case, in the deep-fried food using lard that solidifies at a low temperature of 50 ° C. to 60 ° C. as a shortening, a refracted portion of the introduction path to the oil storage tank, for example, a long potato with a substantially right-angled connection portion remaining, When mixed with other ingredients such as fried residue, it may become clogged early.
Therefore, conventionally, as illustrated in FIG. 7, in a connected two-tank fryer oil draining apparatus, the oil drained from the two oil tanks 101 and 102 is provided with draining on-off valves 107 and 108. Since the oil may not be drained due to clogging of the connecting part 121 that is substantially perpendicular to the connecting pipe 103 connected via the oil collecting temporary storage parts 110 and 111, the connecting pipe having a square cross section. An inspection window 122 is provided on the upper surface of 113, and the lid with the packing of the inspection window 122 is removed at the time of oil draining, and adhesion is deposited from the inspection window 122 into the connection portion 121 that is substantially perpendicular to the introduction path using an arbitrary jig. The present situation is that a route through which drained oil flows is provided by scraping and removing the solidified lard etc. manually.
[0003]
[Problems to be solved by the invention]
However, in such a conventional technique, since the work is scraped out manually from the narrow inspection window 122, the work necessary for securing the flow path cannot be stably performed, and in some cases, the temperature is as high as 150 ° C. to 180 ° C. during the work. Since there is a possibility that the waste oil overflows from the inspection window 122, this work is difficult and dangerous, and there is also a problem that there is a lot of waste oil due to forgetting to close the lid.
SUMMARY OF THE INVENTION An object of the present invention is to provide a fryer oil draining device that solves the above-mentioned problems, can always ensure a smooth flow path, and can safely drain oil.
[0004]
[Means for Solving the Problems]
A fryer oil draining device according to claim 1 of the present invention for solving the above-mentioned problems is provided.
In the connected multi-tank fryer oil drain device,
The gist of the invention is that a rod-like rod that can move forward and backward along the flow direction of the waste oil at the beginning of the drainage is provided in the refracting portion of the introduction path that guides the waste oil from the oil tank to the waste oil storage tank.
[0005]
The fryer oil draining device according to claim 2 of the present invention for solving the above-mentioned problems is the fryer oil draining device according to claim 1,
The gist is that the rod-shaped rod moves forward and backward in conjunction with the opening operation of the oil on / off valve of the oil tank.
[0006]
The fryer oil draining device according to claim 3 of the present invention for solving the above-mentioned problems is the fryer oil draining device according to claim 1 or 2,
The gist of the invention is that the oil discharge on-off valve and the rod-shaped rod are linked via a link mechanism.
[0007]
The fryer oil draining device according to claim 1 of the present invention having the above-described configuration is the most connected in the multi-tank type fryer device, such as lard on the introduction path that guides the oil drained from the oil tank to the waste oil storage tank. Easy-to-reflect part, for example, a connecting part that has a substantially right-angled shape, is provided with a rod-shaped rod that can move forward and backward along the direction of oil discharge at the beginning of oil discharge. Even if lard adheres to and accumulates in the connection part refracted at a substantially right angle in the oil discharge passage, the rod rod moves forward and backward along the flow direction of oil discharge in the connection part at the beginning of oil discharge. As a result, the flow path is ensured because a path through which drained oil flows is provided. As a result, at the time of oil discharge, the lard solidified by the flow of high-temperature exhaust oil at 150 ° C to 180 ° C along the path formed by the rod-shaped rod melts and flows out together, and blockage of the flow path is prevented. Is done.
[0008]
In the fryer oil draining device according to claim 2 of the present invention having the above-described configuration, the rod-shaped rod moves forward and backward in conjunction with the valve opening operation of the oil tank oil draining on-off valve. The oil draining operation and the rod-shaped rod advance / retreat operation are performed in synchronism with the beginning of the oil draining, and a route necessary for the oil draining is formed simultaneously with the valve opening. As a result, it is possible to ensure the flow path at the beginning of oil draining.
[0009]
In the fryer oil draining device according to claim 3 of the present invention having the above-described configuration, the rod-shaped rod and the oil draining on-off valve are interlocked via a link mechanism. The link mechanism with the arranged link rod changes the rotational movement of the valve shaft of the oil draining on-off valve into a linear movement and transmits it to the rod-shaped rod. For example, the operation handle provided in the link mechanism is manually moved to the left and right for a fixed stroke. When the pivoting operation is performed, the valve shaft of the draining on-off valve is pivoted approximately 90 degrees to the left and right by the link mechanism, and at the same time, the rod-shaped rod is linearly moved forward and backward to flow into the bent connection portion of the introduction path. The path is formed with a rod-shaped rod. Thereafter, when the link mechanism is stopped at the open position of the oil discharge on / off valve, the rod-shaped rod stops at the retracted position. As a result, the oil draining operation of the oil tank and the forward and backward movement operation of the rod-shaped rod are performed synchronously accurately and lightly through the link mechanism at the beginning of oil draining, lard etc. in the bent connection part of the introduction path, etc. Even if is clogged, the path of the flow path is always formed by a rod-shaped rod when draining oil. It should be noted that it is desirable to repeat the pivoting operation to the left and right by the above operation handle several times. During this time, the oil draining on-off valve is also opened and closed, so that the drained oil gradually flows out and flows out at once at the beginning of draining. There is no.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of a fryer oil discharger according to the present invention will be described below with reference to the drawings.
[0011]
First, the configuration and operation of a fryer oil discharger according to an embodiment will be described with reference to FIG.
FIG. 1 is a perspective view showing a connected two-tank fryer oil draining device. In FIG. 1, two oil tanks 1 and 2 having a funnel-shaped lower portion are provided with a small gap. The oil drain pipes 4 and 5 connected in parallel and connected to the bottom oil drain ports of the oil tanks 1 and 2 in an oblique manner (inclination of about 30 degrees) are equipped with oil drain on / off valves 7 and 8, respectively. The oil pipes 4 and 5 are connected to the temporary oil reservoirs 10 and 11, respectively, and the temporary oil reservoirs 10 and 11 of the two oil tanks 1 and 2 are connected and connected by a connecting pipe 13 formed of a round pipe. A two-tank fryer oil draining device including a drain oil outlet 14 is provided below the oil temporary reservoir 11, and a drain oil storage tank 15 is provided below the oil temporary reservoir 11. . The waste oil storage tank 15 includes an oil cleaner (for example, a paper filter) (not shown), and further includes a pump 16 for pumping the oil after cleaning to the two oil tanks 1 and 2. 16 is connected to a pipe 17 for suction and a pipe 18 for pumping up, and at the tip of the pumping pipe 18 is provided oil filler plugs 19 and 20 for supplying and closing oil to the respective oil tanks 1 and 2. Reference numerals 25 and 26 are handles for operating the on / off valves 7 and 8 for oil discharge. A cock type on / off valve is used as the oil on / off valves 7 and 8.
[0012]
In the two-tank fryer oil draining apparatus having the above-described configuration, the oil draining pipe 4 and the connecting pipe 13 of the one oil tank 1 are connected and communicated in an orthogonal direction via a temporary draining oil reservoir 10, The connecting portion 21 is provided with a rod-like rod 22 that linearly moves forward and backward along the flow direction of the drained oil on the axis of the connecting pipe 13. This rod-shaped rod 22 is supported by a guide short tube 23 provided on one side wall of the temporary reservoir 10 while maintaining the same axis as the connecting tube 13 made of a round pipe so that its tip rod-shaped portion 22a is slidably inserted. The rod-like portion 22 a of the rod 22 moves forward and backward in a state of penetrating the connecting portion between the connecting pipe 13 and the temporary oil collecting portion 10, and is disposed at the center position of the connecting pipe 13. And between the front-end | tip rod-shaped part 22a of the rod-shaped rod 22 and the guide short tube 23, the packing (O-ring) is interposed and it is inserted and supported so that there may be no oil leak. Further, the base end portion 22b of the rod-shaped rod 22 is bent in a U shape and positioned on the front side, and the end portion of the base end portion 22b is refracted forward to form an operating handle 24. . The forward / backward movement stroke of the rod-shaped rod 22 is preferably about 100 mm.
[0013]
In the above configuration, when the oil tanks 1 and 2 are drained after the frying work is finished, first, the rod-shaped rod 22 is manually moved forward and backward several times to the left and right with the handle 24 of the base end 22b. Then, the path of the flow path is formed by the tip rod-shaped portion 22a of the rod-shaped rod 22 on the lard or the like adhered and accumulated in the connection portion 21. After that, when the opening and closing valves 7 and 8 for the oil tanks 1 and 2 are opened by the operation handles 25 and 26, the oil discharged from one of the oil tanks 1 is drained from the oil tank 1 and has the opening and closing valve 7 for draining. 4 → temporary reservoir 10 → connecting pipe 13 → temporary reservoir 11 → exhaust oil outlet 14 and flows into the oil storage tank 15, but is connected to the right-angled connecting portion 21 by the rod-shaped rod 22 previously slid. Since the flow path is secured, the outflow of the drained oil is smoothly performed without clogging. The oil in the other oil tank 2 flows directly from the oil tank 2 into the oil storage tank 17 through the oil discharge pipe 5 having the oil on-off valve 8 → the temporary reservoir 11 → the oil outlet 14. . Therefore, the waste oil in the two oil tanks 1 and 2 is collected in one waste oil storage tank 15 and filtered.
[0014]
Next, the fryer oil discharger according to the embodiment shown in FIG. 2 will be described. The same parts as those in the embodiment of FIG. This fryer oil draining apparatus is a three tank type fryer oil draining apparatus having three oil tanks 1, 2, and 3 connected to each other, and in FIG. 2, three oil tanks 1 having a lower portion formed in a funnel shape. 2, 3 are arranged side by side with a small gap, and the oil drain pipes 4, 5, 6 are connected to the bottom oil drain ports of the oil tanks 1, 2, 3 in an oblique manner (inclination of about 30 degrees). Are provided with oil on-off valves 7, 8, 9, connecting the oil drain pipes 4, 5, 6 to the temporary oil reservoirs 10, 11, 12, respectively, and three oil tanks 1, 2, 3 of the waste oil temporary reservoirs 10, 11, and 12, the central waste oil temporary reservoir 11 and one of the temporary waste oil reservoirs 10 are connected and connected by a connecting pipe 13 formed of a round pipe. Similarly, the reservoir 11 and the other temporary reservoir 12 are connected and communicated with each other by an introduction pipe 27 made of a round pipe. Comprising oil discharge outlet 14 at the bottom in the temporary reservoir 11 is composed of 3 vessel type fryer oil discharge device provided with oil discharge storage tank 15 below the oil discharge of the temporary reservoir 11. The waste oil storage tank 15 has a built-in oil cleaner (for example, a paper filter) (not shown), and further includes a pump 16 for pumping the oil after cleaning to the three oil tanks 1, 2, and 3. A suction pipe 17 and a pumping pipe 18 are connected to the pump 16, and at the tip of the pumping pipe 18, oil filler plugs 19, 20 for supplying / disconnecting oil to the respective oil tanks 1, 2, 3 are provided. 28 are provided. Reference numerals 25, 26, and 29 are handles for operating the oil discharge on / off valves 7, 8, and 9. A cock type on-off valve is used as the oil discharge on-off valves 7, 8, 9.
[0015]
In the three-tank fryer oil draining device having the above-described configuration, the oil draining pipe 4 and the connecting pipe 13 of the oil tank 1 are connected and communicated in a perpendicular direction via a temporary draining oil reservoir 10, and this right-angled connection. The part 21 is provided with a rod-like rod 22 that moves forward and backward along the flow direction of the oil drain on the axis of the connecting pipe 13. Further, the oil draining pipe 6 and the connecting pipe 27 of the oil tank 3 are connected to each other in the orthogonal direction via the temporary oil collecting portion 12, and the connecting part 30 having a right angle is connected to the axis of the connecting pipe 27. A rod-shaped rod 31 that moves forward and backward along the flow direction of the waste oil is provided. These rod-shaped rods 22 and 31 are connected to the short guide tubes 24 and 32 provided on the outer walls of the temporary reservoirs 10 and 12 on both sides so as to maintain the same axis as the connecting tubes 13 and 27, and the tip rod-shaped portions 22a and 31a thereof. Are inserted and supported so as to be slidable, and the rod end portions 22a and 31a of the rod-like rods 22 and 31 are moved forward and backward so as to penetrate through the connecting portions of the connecting pipes 13 and 27 and the temporary oil reservoirs 10 and 12, and The connecting pipes 13 and 27 are arranged at the center position. Further, a packing (O-ring) is interposed between the distal end rod-like portions 22a and 31a of the rod-like rods 22 and 31 and the guide short tubes 23 and 32 so as to be inserted and supported so as not to leak oil. Further, the base end portions 22b and 31b of the rod-shaped rods 22 and 31 are bent in a U-shape and positioned on the near side, and the end portions of the base end portions 22b and 31b are refracted forward to operate the handle. 24 and 33 are formed. The forward / backward movement strokes of the rod-shaped rods 22 and 31 are preferably about 100 mm.
[0016]
In the above configuration, when the oil tanks 1, 2, and 3 are drained after the frying work is completed, first, the rod-like rods 22 and 31 on both sides are held with the grips 24 and 33 of the base end portions 22b and 31b. Then, each of them is manually moved back and forth several times left and right, and the path of the flow path is formed by the rod end portions 22a and 31a of the rod-like rods 22 and 31 on the lard and the like which are adhered and accumulated in the connection portions 21 and 30. Thereafter, when the on-off valves 7, 8, 9 of the three oil tanks 1, 2, 3 are opened by the operating handles 25, 26, 29, the oil discharged from the oil tanks 1, 3 on both sides is discharged from the oil tanks 1, 3. Oil discharge pipes 4, 6 having oil discharge opening / closing valves 7, 9 → temporary reservoirs 10, 12 → connecting pipes 13, 27 → central temporary reservoir 11 → exhaust oil outlet 14 to the oil storage tank 15 Although it flows in, since the flow path is secured in the right-angled connecting portions 21 and 30 by the rod-shaped rods 22 and 31 that have been slid first, the drainage of the oil is smoothly performed without clogging. The oil in the central oil tank 2 flows directly from the oil tank 2 into the oil storage tank 17 through the oil discharge pipe 5 having the oil on-off valve 8 → the temporary reservoir 11 → the oil outlet 14. . Therefore, the oil discharged from the three oil tanks 1, 2, and 3 is collected in one oil storage tank 15 and filtered.
[0017]
Furthermore, the fryer oil discharger according to the embodiment shown in FIG. 3 will be described. The same parts as those in the embodiment of FIG. This fryer oil draining apparatus is a three tank type fryer oil draining apparatus having three oil tanks 1, 2, and 3 connected to each other, and in FIG. 3, three oil tanks 1 having a lower portion formed in a funnel shape. 2, 3 are arranged side by side with a small gap, and the oil drain pipes 4, 5, 6 are connected to the bottom oil drain ports of the oil tanks 1, 2, 3 in an oblique manner (inclination of about 30 degrees). Are provided with oil on-off valves 7, 8, 9, connecting the oil drain pipes 4, 5, 6 to the temporary oil reservoirs 10, 11, 12, respectively, and three oil tanks 1, 2, 3 of the waste oil temporary reservoirs 10, 11, and 12, the central waste oil temporary reservoir 11 and one of the temporary waste oil reservoirs 10 are connected and connected by a connecting pipe 13 formed of a round pipe. Are provided with oil discharge outlets 14 and 34 at the lower part of the temporary reservoir 11 and the other temporary reservoir 12. It is composed of 3 vessel type fryer oil discharge device provided with oil discharge storage tank 15 is disposed below between. The waste oil storage tank 15 has a built-in oil cleaner (for example, a paper filter) (not shown), and further includes a pump 16 for pumping the oil after cleaning to the three oil tanks 1, 2, and 3. A suction pipe 17 and a pumping pipe 18 are connected to the pump 16, and at the tip of the pumping pipe 18, oil filler plugs 19, 20 for supplying / disconnecting oil to the respective oil tanks 1, 2, 3 are provided. 28 are provided. Reference numerals 25, 26, and 29 are handles for operating the oil discharge on / off valves 7, 8, and 9. A cock type on-off valve is used as the oil discharge on-off valves 7, 8, 9.
[0018]
In the oil evacuation device of the three-tank type fryer configured as described above, the oil exhaust pipe 4 and the connecting pipe 13 of the one oil tank 1 are connected and communicated in an orthogonal direction via a temporary oil reservoir 10, The connecting portion 21 is provided with a rod-like rod 22 that linearly moves forward and backward along the flow direction of the drained oil on the axis of the connecting pipe 13. This rod-shaped rod 22 is inserted and supported so that its tip rod-shaped portion 22a is slidably inserted into a guide short tube 23 provided on the outer wall of the temporary reservoir 10 while maintaining the same axis as the connecting tube 13 made of a round pipe. The rod-like portion 22 a of the rod 22 moves forward and backward in a state of penetrating the connecting portion between the connecting pipe 13 and the temporary oil collecting portion 10, and is disposed at the center position of the connecting pipe 13. And between the front-end | tip rod-shaped part 22a of the rod-shaped rod 22 and the guide short tube 23, the packing (O-ring) is interposed and it is inserted and supported so that there may be no oil leak. Further, the base end portion 22b of the rod-shaped rod 22 is bent in a U shape and positioned on the front side, and the end portion of the base end portion 22b is refracted forward to form an operating handle 24. . The forward / backward movement stroke of the rod-shaped rod 22 is preferably about 100 mm.
[0019]
In the above configuration, when the oil tanks 1, 2, and 3 are drained after the frying work is completed, when the two oil tanks 2 and 3 open their drain valves 8 and 9, The oil flows from the oil discharge pipes 5 and 6 having the oil discharge on / off valves 8 and 9 directly from the oil discharge outlets 14 and 34 to the oil storage tank 17 through the temporary reservoirs 11 and 12, respectively. On the other hand, the remaining oil tank 1 is drained by first moving the rod-shaped rod 22 back and forth manually several times to the left and right with the handle 24 of the base end portion 22b, and sticking it to the lard and the like deposited in the connecting portion 21 After the path of the flow path is formed by the tip rod-shaped portion 22 a of the rod-shaped rod 22, when the oil draining on-off valve 7 is opened by the operation handle 25, the oil drained from the oil tank 1 is discharged from the oil tank 1 to the oil draining on-off valve. The oil drain pipe 4 having 7 → the drain oil temporary reservoir 10 → the connecting pipe 13 → the drain oil temporary reservoir 11 → the drain oil outlet 14 flows into the drain oil storage tank 15 but is slid first. Since the flow path is secured in the right-angled connecting portion 21 by the rod-shaped rod 22, the drainage of the drained oil is smoothly performed without clogging. Therefore, the oil discharged from the three oil tanks 1, 2, and 3 is collected in one oil storage tank 15 and filtered.
[0020]
Next, the fryer oil draining device according to the embodiment shown in FIG. 4 is a fryer oil draining device configured such that the rod-shaped rod and the oil draining on-off valve are linked by a link mechanism. , Change the rotational movement of the valve shaft of the oil draining on-off valve to linear motion by the link mechanism and transmit it to the rod-shaped rod, or conversely change the linear motion of the rod-shaped rod to rotary motion by the link mechanism By transmitting to the valve shaft of the valve, the rod-shaped rod moves forward and backward in conjunction with the opening and closing operation of the oil draining on-off valve.
Specifically, in FIGS. 4 and 5, the link mechanism A is pivoted by an upper link rod 36 whose base end is fixed to the valve shaft 35 of the oil draining on-off valve 7 and a fixed link rod 37 by a support shaft 38. The upper link is composed of a lower link rod 39 supported and a connecting link rod 42 having a slide long hole 40 inserted in the axial direction by a locking nut 46 through which the base end portion 22c of the rod-shaped rod 22 is inserted. The upper and lower ends of the link link 42 are pivotally supported by the support shafts 43 and 44 at the tip of the link rod 36 and the tip of the lower link rod 39, and the tip of the lower link rod 39 is formed. The link mechanism A is pivoted and displaced by about 90 degrees (θ) downward in the figure with the operation handle 45 formed integrally with the upper link rod 36, so that the oil draining on-off valve 7 is opened at the same time as the rod-shaped rod. Link 22 to 22 Only certain stroke to the left in the figure by 2 (L1-L2) is moved forward. At this time, the rod-shaped rod 22 is pushed to the left in the drawing by the side plate 41 while sliding along the slide long hole 40 of the connecting link rod 42, so that the rod-shaped rod 22 has a certain stroke (to the left in the drawing). L1−L2) (see the state of the chain line from the state of the solid line in FIG. 5).
When the link mechanism A is rotated and displaced approximately 90 degrees upward in the figure by the operation handle 45 from this state, the oil draining on-off valve 7 is closed by the upper link rod 36 and at the same time the rod-shaped rod 22 is connected by the connecting link rod 42. It moves backward by a certain stroke (L1-L2) to the right in the figure. At this time, the rod-shaped rod 22 is pulled and moved to the right in the drawing by the side plate 41 while sliding along the slide long hole 40 of the connecting link rod 42, so that the rod-shaped rod 22 has a certain stroke (to the right in the drawing). L1−L2) (see the solid line state from the chain line state in FIG. 5).
[0021]
In the above configuration, when oil is drained, the vertical movement of the operation handle 45 is repeated several times to create a path by the rod-shaped rod 22 to secure the flow path of the connecting portion 21 and to eliminate clogging during oil draining. At this time, the oil draining on-off valve 7 also opens and closes simultaneously and gradually begins to drain oil.
Even when the oil draining on-off valve 9 and the rod-shaped rod 31 are interlocked by a link mechanism, the other configuration and operation are the same as in the embodiment of FIG. Is omitted.
[0022]
FIG. 6 shows a connected two tank type fryer oil draining apparatus, in which oil tanks 1a, 1b and 2a are adjacent to each other by ingredients etc. which are divided into two by partition plates 47 and 48, respectively. 1b is an individual operation type fryer capable of changing the temperature of the oil, and other configurations and functions are the same as those of the embodiment of FIG. Omitted.
[0023]
The example of the embodiment of the present invention has been described above, but the present invention is not limited to the embodiment, and it is needless to say that the present invention can be implemented in various forms without departing from the gist of the present invention. .
[0024]
【The invention's effect】
The present invention is implemented in the form as described above, and has the effects described below.
[0025]
According to the fryer oil draining device of the present invention, in a multi-tank type fryer device, the path through which the oil drains by the rod-shaped rod at the beginning of oil draining is connected to the bent connection portion where the lard of the oil draining passage is most likely to clog. Therefore, even if the connecting portion is clogged due to adhesion accumulation such as lard, the flow path is surely secured. Therefore, at the time of oil removal, the high temperature waste oil is smoothly drained together with lard and the like, so that there is no danger of the high temperature waste oil overflowing as in the conventional case, and the oil can be drained safely.
[0026]
Further, since the oil draining operation from the oil tank and the rod-shaped rod advance / retreat operation are performed synchronously at the beginning of the oil drainage, a route necessary for the oil draining is formed simultaneously with the valve opening. Therefore, the flow path necessary for oil draining is ensured and smooth and safe oil draining can be performed.
[0027]
In addition, since the linkage between the rod-shaped rod at the beginning of oil drainage and the on-off valve for oil draining is performed by a link mechanism, the path of the flow path by the rod-shaped rod is ensured simultaneously with the opening of the on-off valve for oil draining with one-touch operation. Formed. Therefore, the rod-shaped rod always operates during oil drainage, and the flow path is prevented from being blocked.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a main part showing an example of a two-tank fryer oil draining device.
FIG. 2 is a schematic perspective view of a main part showing an example of a three-tank fryer oil draining device.
FIG. 3 is a schematic perspective view of a main part showing a different example of a three-tank fryer oil draining device.
FIG. 4 is a schematic perspective view showing an example in the case where a link mechanism is provided as an interlocking means for an oil on-off valve and a rod-shaped rod.
FIG. 5 is a plan view of only the main part.
FIG. 6 is a schematic perspective view showing an example in which an oil tank is divided into two.
FIG. 7 is a schematic perspective view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Oil tank 4 ... Drain pipe 7 ... Drain valve 10 ... Partial reservoir 13 ... Connecting pipe 22 ... Rod-shaped rod A ... Link mechanism

Claims

In the connected multi-tank fryer oil drainer,
A fryer oil draining device comprising a rod-like rod that can move forward and backward along the flow direction of drained oil at the beginning of draining in an introduction path that guides drained oil from an oil tank to a drained oil storage tank.

2. The fryer oil draining apparatus according to claim 1, wherein the rod-shaped rod moves forward and backward in conjunction with the valve opening operation of the oil tank opening / closing valve.

3. The fryer oil draining device according to claim 1, wherein the oil draining on-off valve and the rod-shaped rod are interlocked with each other via a link mechanism.