JPH0512465U - Oil leak detection device for hydraulic elevator - Google Patents
Oil leak detection device for hydraulic elevatorInfo
- Publication number
- JPH0512465U JPH0512465U JP5905491U JP5905491U JPH0512465U JP H0512465 U JPH0512465 U JP H0512465U JP 5905491 U JP5905491 U JP 5905491U JP 5905491 U JP5905491 U JP 5905491U JP H0512465 U JPH0512465 U JP H0512465U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- detection device
- hydraulic
- hydraulic elevator
- oil leak
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Types And Forms Of Lifts (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
(57)【要約】
【目的】 油圧エレベータの油圧配管の継ぎ部等よりの
油漏れを少量の内に検知し、警報を発し、配管の送油を
停止してエレベータ運転を停止させる装置を目的とす
る。
【構成】 配管継ぎ部等油漏れの予想される箇所に油受
け皿を設け、油受け皿の上方に投光器と受光器を取付
け、受光器の端末に継電器を接続し、ストップバルブモ
ータに接続して油圧エレベータの油漏れ検知装置を構成
する。
(57) [Summary] [Purpose] The purpose is to detect an oil leak from the joint of hydraulic piping of a hydraulic elevator in a small amount, issue an alarm, and stop the oil supply of the piping to stop the elevator operation. And [Structure] An oil pan is installed at a place where oil leakage is expected, such as a pipe joint, a sender and a receiver are installed above the oil pan, a relay is connected to the end of the receiver, and a stop valve motor is connected to hydraulic pressure. Configure an oil leak detection device for an elevator.
Description
【0001】[0001]
本考案は油圧エレベータの油漏れ検知装置に関する。 The present invention relates to an oil leak detection device for a hydraulic elevator.
【0002】[0002]
図1を参照して従来の油圧エレベーの構成を説明する。 The configuration of a conventional hydraulic elevator will be described with reference to FIG.
【0003】 油圧エレベータは、電動機1により油ポンプ2を駆動し、油タンク3の油を制 御バルブ4を経て配管5によりサイレンサ6、ストップバルブ7を経由して油圧 ジヤッキ8に供給し、油圧ジヤッキ8のシリンダ9を押上げてかご10を昇降さ せている。The hydraulic elevator drives an oil pump 2 by an electric motor 1, supplies oil in an oil tank 3 to a hydraulic jack 8 via a control valve 4, a silencer 6 and a stop valve 7 via a pipe 5, The cylinder 9 of the jack 8 is pushed up to raise and lower the car 10.
【0004】 配管5は複数箇所の配管同士の継ぎ11或い機器との連結などにより連結され ているので、その継ぎ部分の締付け不全、劣化等により油漏れが生じることがあ る。油漏れがあると、油圧ジャッキ8への圧油が減圧となり、かご10は上昇出 来ず下降する。又、かご10が停止中に油漏れが発生すると、かご10が下降し 、かご床面と乗場床面との間にずれが発生する。Since the pipe 5 is connected by connecting the pipes 11 at a plurality of locations to each other or connecting the pipes to a device, oil leakage may occur due to insufficient tightening or deterioration of the joint. When there is an oil leak, the pressure oil to the hydraulic jack 8 is depressurized, and the car 10 does not rise but descends. Further, if oil leakage occurs while the car 10 is stopped, the car 10 descends and a gap occurs between the car floor surface and the landing floor surface.
【0005】[0005]
油漏れが大量の場合はかごの昇降に支障を来し、事故にもつながる。しかし、 この場合は油圧の変動、かごの走行の不具合など種々の現象から油漏れを知り、 且つ対策が取られるようになっているのは当然である。 If there is a large amount of oil leakage, it will interfere with the raising and lowering of the car, leading to an accident. However, in this case, it is natural that the oil leak is known from various phenomena such as the fluctuation of the hydraulic pressure and the trouble of the traveling of the car, and the countermeasure can be taken.
【0006】 ところが、油漏れが少量のうちこそ、その漏れを知りその対策を取れば大量の 漏れもほぼ防止でき理想的であるが、少量の油漏れの機械的或いは電気的検出が 難しく、保守点検時にそれを知ることになるので見逃しがあることもあり問題で あった。However, it is ideal that a large amount of oil leakage can be almost prevented if the oil leakage is small and a countermeasure is taken if the oil leakage is small. However, mechanical or electrical detection of a small oil leakage is difficult, and maintenance is difficult. It was a problem because it would be overlooked because it would be known at the time of inspection.
【0007】 本考案は上記に鑑み、油漏れが少量のうちに迅速に油漏れを検知し、警報を発 し適切な処置を取れるような装置の提供を目的としている。In view of the above, the present invention has an object to provide a device capable of promptly detecting an oil leak, issuing an alarm and taking an appropriate measure even when the oil leak is small.
【0008】[0008]
上記の目的達成のため本考案は、油漏れが生じやすい配管の継ぎ部や機器の継 ぎ部分の下方に油受皿を設け、油受皿の上方に投光器と受光器を取付け、油の存 在を光の反射で検知する構成とする。 In order to achieve the above object, the present invention provides an oil pan below the joint of pipes and equipment where oil leakage easily occurs, and mounts a sender and a receiver above the oil pan to prevent the presence of oil. It is configured to detect by light reflection.
【0009】[0009]
上記構成の検知装置により、配管継ぎ部より油漏れが生じると、油受け皿に滴 下した油が溜り油面が形成される。投光器から照射された光は前記油面で反射し 受光器に到達し、受光器が動作し油の漏れを検知する。 When the oil leaks from the pipe joint portion by the detection device having the above-described configuration, the oil that has dripped on the oil pan is accumulated and an oil surface is formed. The light emitted from the light projector is reflected by the oil surface and reaches the light receiver, and the light receiver operates to detect oil leakage.
【0010】 この出力により継電器が励磁され、接点出力を利用して警報を発信し、種々の 適切な対策をとることとなる。This output excites the relay, uses the contact output to issue an alarm, and takes various appropriate measures.
【0011】[0011]
図1乃至図4に示す実施例により本考案の説明をする。 The present invention will be described with reference to the embodiments shown in FIGS.
【0012】 油漏れが予想される配管継ぎ部11等に油受け皿12を設け、油受け皿12の 上方に投光器13及び受光器14を油受け皿12の底面に対し45゜の角度で取付 ける。受光器14の端末に継電器15を取付け、投光器13及び受光器14の電 源としてバッテリ16を接続する。継電器15にはその接点17を経てストップ バルブモータ18に接続する。The oil receiving tray 12 is provided in the pipe joint 11 or the like where oil leakage is expected, and the projector 13 and the light receiver 14 can be mounted above the oil receiving tray 12 at an angle of 45 ° with respect to the bottom surface of the oil receiving tray 12. A relay 15 is attached to the terminal of the light receiver 14, and a battery 16 is connected as a power source for the light projector 13 and the light receiver 14. The relay 15 is connected to the stop valve motor 18 via its contact point 17.
【0013】 配管継ぎ部11から油漏れが無い場合は油受け皿12に油はなく、投光器13 から光が投射されても受光器14に光が届かず受光器14は不動作となつており 、従って継電器15は励磁されず、ストップバルブモータ18も起動しないので 、油は正常に配管5内を流れかご10を上昇、下降させる。When there is no oil leak from the pipe joint 11, there is no oil in the oil pan 12, and even if light is projected from the projector 13, the light does not reach the light receiver 14, and the light receiver 14 is inoperative. Therefore, the relay 15 is not excited and the stop valve motor 18 is not activated, so that the oil normally flows in the pipe 5 and raises and lowers the car 10.
【0014】 油漏れがあつた場合、油受け皿12には滴下した油が溜り油面19が形成され る。投光器13からの光は前記油面19に反射し、受光器14に達し、受光器1 4が動作し回路が閉じ継電器15が励磁する。継電器15の励磁によりその接点 17がオンしストップバルブモータ18が起動し、ストップバルブ7が閉止して 油の流れが止まり、油漏れによるシリンダ9の下降を停止し、かご10は停止す る。When an oil leak occurs, the dropped oil is accumulated in the oil pan 12 and an oil surface 19 is formed. The light from the light projector 13 is reflected on the oil surface 19 and reaches the light receiver 14, the light receiver 14 operates, the circuit is closed, and the relay 15 is excited. When the relay 15 is excited, its contact 17 is turned on, the stop valve motor 18 is activated, the stop valve 7 is closed, the flow of oil is stopped, the lowering of the cylinder 9 due to oil leakage is stopped, and the car 10 is stopped.
【0015】 又、継電器15の接点17を利用して警報を発し、管理者への通報その他の処 置を取る。In addition, the contact point 17 of the relay 15 is used to issue an alarm and notify the administrator or take other actions.
【0016】 本考案の油漏れ検知装置により、油漏れを早期に検知し、警報を発し、ストッ プバルブ7をコントロールして配管5の油の流れを停止することができるので、 上記油漏れによる不具合を抑止することができる。又大量の油漏れとなる以前に 少量の油漏れを即時に検知できるので、大事に至る前に点検整備を行い、エレベ ータを長時間停止することは生じない。With the oil leak detection device of the present invention, it is possible to detect an oil leak at an early stage, issue an alarm, and control the stop valve 7 to stop the oil flow in the pipe 5. Can be suppressed. Also, since a small amount of oil leakage can be detected immediately before a large amount of oil leakage, it is not necessary to perform inspection and maintenance before it becomes important and stop the elevator for a long time.
【0017】[0017]
本考案により、油圧エレベータの少量の油漏れを早めに検知し、その適切なる 対応ができ、油圧エレベータの運行の安全と信頼性を向上させることとなる。 According to the present invention, a small amount of oil leakage of the hydraulic elevator can be detected early and appropriate measures can be taken to improve the safety and reliability of operation of the hydraulic elevator.
【図1】油圧エレベータの概略正面図である。FIG. 1 is a schematic front view of a hydraulic elevator.
【図2】本考案による油漏れ検知装置の正面図である。FIG. 2 is a front view of an oil leakage detection device according to the present invention.
【図3】図3の動作説明図である。FIG. 3 is an operation explanatory diagram of FIG. 3;
【図4】ストップバルブの概略図である。FIG. 4 is a schematic view of a stop valve.
2…ポンプ 3…タンク 5…配管 7…ストップバルブ 9…シリンダ 10…かご 11…配管継ぎ部 12…油受け皿 13…投光器 14…受光器 15…継電器 2 ... Pump 3 ... Tank 5 ... Piping 7 ... Stop valve 9 ... Cylinder 10 ... Basket 11 ... Piping joint 12 ... Oil pan 13 ... Emitter 14 ... Receiver 15 ... Relay
Claims (1)
供給してかごを昇降させる油圧エレベータにおいて、 前記パワーユニット及びその油圧回路の所要の箇所に油
受皿を設け、夫々に光センサーを設けて油受皿内の油を
検出することを特徴とする油圧エレベータの油漏れ検知
装置。1. A hydraulic elevator for supplying pressure oil of a power unit to a hydraulic jack to elevate and lower a car, wherein an oil pan is provided at a required location of the power unit and its hydraulic circuit, and an optical sensor is provided for each of the oil pans. An oil leak detection device for a hydraulic elevator, which detects the oil in the oil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5905491U JPH0512465U (en) | 1991-07-26 | 1991-07-26 | Oil leak detection device for hydraulic elevator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5905491U JPH0512465U (en) | 1991-07-26 | 1991-07-26 | Oil leak detection device for hydraulic elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0512465U true JPH0512465U (en) | 1993-02-19 |
Family
ID=13102234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5905491U Pending JPH0512465U (en) | 1991-07-26 | 1991-07-26 | Oil leak detection device for hydraulic elevator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0512465U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019156503A (en) * | 2018-03-07 | 2019-09-19 | 東芝エレベータ株式会社 | Oil leakage detection system in hydraulic elevator |
-
1991
- 1991-07-26 JP JP5905491U patent/JPH0512465U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019156503A (en) * | 2018-03-07 | 2019-09-19 | 東芝エレベータ株式会社 | Oil leakage detection system in hydraulic elevator |
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