JPS6337092A - Shut-off valve for cylinder of hydraulic elevator - Google Patents
Shut-off valve for cylinder of hydraulic elevatorInfo
- Publication number
- JPS6337092A JPS6337092A JP17660286A JP17660286A JPS6337092A JP S6337092 A JPS6337092 A JP S6337092A JP 17660286 A JP17660286 A JP 17660286A JP 17660286 A JP17660286 A JP 17660286A JP S6337092 A JPS6337092 A JP S6337092A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- float
- flow path
- hydraulic elevator
- air
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000013022 venting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は油田エレベータのシリンダー用塞止弁、特に
油圧エレベータの据付調整作業の合理化が可能な、油圧
エレベータのシリンダー用塞止弁に関するもので′ある
。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a block valve for a cylinder of an oil field elevator, and particularly to a block valve for a cylinder of a hydraulic elevator that can streamline the installation and adjustment work of a hydraulic elevator. 'be.
〈従来の技術〉
油圧エレベータの据付調整作業に際しては、シリンダ内
の空気抜きを行なう必要がある。<Prior Art> When installing and adjusting a hydraulic elevator, it is necessary to bleed air from the cylinder.
第２図は油圧エレベータの要部の構成を示すもので、エ
レベータの昇降路内にシリンダ１が設けられ、シリンダ
１の上端部にはグランド部６が形成される。このグラン
ド部６に、空気抜き孔２０が形成されている。FIG. 2 shows the configuration of the main parts of a hydraulic elevator. A cylinder 1 is provided in the hoistway of the elevator, and a gland part 6 is formed at the upper end of the cylinder 1. An air vent hole 20 is formed in this ground portion 6.
シリンダ１のグランド部６からは、プランジャ２が伸縮
自在に取り付けられている。プランジャ２の上端部には
プーリー１９が設けられ、プリー１９にはロープ１８が
係装されている。プリー１９の一端は固定部に固定され
、他端には乗かと１７が固定される。プランジャ２がシ
リンダ１のグランド部６から伸縮制御され、プランジャ
２の伸縮動作によって乗かと１７が、各階床間を移動す
る。A plunger 2 is telescopically attached to a gland portion 6 of the cylinder 1. A pulley 19 is provided at the upper end of the plunger 2, and a rope 18 is attached to the pulley 19. One end of the pulley 19 is fixed to a fixed part, and a seat 17 is fixed to the other end. The plunger 2 is controlled to expand and contract from the ground portion 6 of the cylinder 1, and the expansion and contraction movement of the plunger 2 causes the seat 17 to move between each floor.
プランジャ２は、第２図では図示していないがシリンダ
１の上端部のグランド部６内部に設けられた、グランド
バッキングと摺動しながら、伸縮移動する構成となって
いる。従って、グランドバッキング部分からは、極微量
の流体漏れが存在している。Although not shown in FIG. 2, the plunger 2 is configured to extend and contract while sliding on a gland backing provided inside the gland section 6 at the upper end of the cylinder 1. Therefore, a very small amount of fluid leaks from the ground backing portion.
゛ しかじ、シリンダ１内に空気が残存していると、残
存空気が空気はね・の作用をし、残存空気の存在で乗り
かごの移動が影響を受け、乗り心地に悪影響を及ぼす。゛ However, if air remains in the cylinder 1, the remaining air acts as an air splash, and the presence of the remaining air affects the movement of the car, adversely affecting ride comfort.
このため、油圧エレベータでは据付調整作業時に、シリ
ンダ１内の空気抜きを行なう必要がある。残存空気を自
然脱気させてもよいが、一般に自然脱気の方法では、空
気の量にもよるが、半日単位程度の時間が必要となる。For this reason, in the hydraulic elevator, it is necessary to bleed air from the cylinder 1 during installation and adjustment work. The remaining air may be naturally degassed, but the natural deaeration method generally requires about half a day, depending on the amount of air.
そこで従来は、油圧エレベータの据付調整作業時には、
足場を組んで二人の作業員で空気抜き作業を行なってい
た。即ち、油圧エレベータの据付調整時に、シリンダ１
にプランジャ２を挿入後に、シリンダ１に徐々に作動油
を注入し、シリンダ１のグランド部６の空気抜き孔２０
から作動油が漏出したことを確認して、空気抜き孔２０
に盲栓を螺入する。このようにして、作動油をシリンダ
１に注入する作業員と、空気抜き孔２０から作動油が漏
出したことを確認して、空気抜き孔２０に盲栓を螺入す
る作業員が必要である。この種の技術に関しては、実開
昭５７−７７６５号に開示が認められる。Therefore, conventionally, when installing and adjusting hydraulic elevators,
Two workers were working on scaffolding to remove air. That is, when adjusting the installation of a hydraulic elevator, cylinder 1
After inserting plunger 2 into
After confirming that hydraulic oil has leaked from the air vent hole 20,
Screw the blind plug into. In this way, a worker is required to inject the hydraulic oil into the cylinder 1, and another worker is required to confirm that the hydraulic oil has leaked from the air vent hole 20 and screw the blind plug into the air vent hole 20. This type of technology is disclosed in Japanese Utility Model Application No. 57-7765.
〈発明が解決しようとする問題点〉
前述のように油圧エレベータの据付調整作業に際して行
なう、シリンダ内の空気抜きは、自然脱気を待っている
と時間がかかり過ぎ、作業員二基が足場を組んで行なう
空気抜き作業では、作業能率がよくない。<Problems to be Solved by the Invention> As mentioned above, venting the air inside the cylinder during the installation and adjustment work of a hydraulic elevator takes too much time if you wait for natural venting, and two workers have to set up scaffolding. The work efficiency is not good in air removal work performed with
この発明は、この種の空気抜き作業の現状に鑑みてなさ
れたものであり、その目的は一名の作業員で極めて効率
的に且つ安全に、シリンダ内の空気抜きを行なうことが
可能な、油圧エレベータのシリンダー用塞止弁を提供す
ることにある。This invention was made in view of the current state of this type of air purge work, and its purpose is to provide a hydraulic elevator that allows a single worker to bleed air from a cylinder extremely efficiently and safely. An object of the present invention is to provide a blocking valve for a cylinder.
く問題点を解決するための手段〉
この発明では、油圧エレベータ用シリンダに対して、空
気抜きを行なう流路が大気に通じて形成され、流路内に
流路の延長方向に移動自在に浮子が設けられる。この浮
子は、流路の入側に対する流体抵抗が出側に対する流体
抵抗よりも、大となるように形状が選定されている。Means for Solving the Problems> In the present invention, a flow path for venting air is formed in a hydraulic elevator cylinder and communicates with the atmosphere, and a float is provided in the flow path so as to be movable in the extending direction of the flow path. provided. The shape of this float is selected so that the fluid resistance to the inlet side of the flow path is greater than the fluid resistance to the outlet side.
流路の出口側と浮子の端部間には、浮子の端部を出口か
ら離す方向に浮子を偏倚させる偏倚ばねが設けられる。A biasing spring is provided between the outlet side of the flow path and the end of the float for biasing the float in a direction that moves the end of the float away from the outlet.
この発明では、シリンダ内の油圧が所定値を越えると、
偏倚ばねの偏倚力に抗して浮子が移動し、流路が閉じら
れるように構成されている。In this invention, when the oil pressure in the cylinder exceeds a predetermined value,
The float is configured to move against the biasing force of the biasing spring, thereby closing the flow path.
く作用〉
この発明では、シリンダ内の油圧が所定値を越えると、
浮子が偏倚ばねの偏倚力に抗して移動し、流路の出口を
塞さぐ。従って、空気抜きが行なわれた状態で乗かごは
運転可能となり、作業員は乗かごでグランド部付近に移
動し、流路を盲栓で閉じ込むことが出来るので、−名の
作業員で効率的に油圧エレベータの据付調整作業時に、
シリンダ内の空気抜きを行なうことが可能となる。Effect> In this invention, when the oil pressure in the cylinder exceeds a predetermined value,
The float moves against the biasing force of the biasing spring and blocks the outlet of the flow path. Therefore, the car can be operated with the air removed, and the worker can move the car to the vicinity of the ground and close the flow path with a blind plug. During the installation and adjustment work of a hydraulic elevator,
It becomes possible to bleed air inside the cylinder.
〈実施例〉
以下この発明の油圧エレベータのシリンダー用塞止弁を
、その実施例に基づき図面を使用して詳細に説明する。<Example> Hereinafter, the blocking valve for a cylinder of a hydraulic elevator according to the present invention will be described in detail based on an example thereof with reference to the drawings.
゛
第１図はこの発明の油圧エレベータのシリンダー用塞止
弁の実施例の要部の構成を示し、シリンダ１に対して伸
縮自在にプランジャ２が取り付けられる。プランジャ２
とシリンダ１のグランド部６間には、メタルバッキング
４、グランドバッキング３及びバッキング押え５が嵌装
され、バッキング押え５によってグランドバッキング３
は、メタルバッキング４に押し付けられている。1 shows the construction of the main parts of an embodiment of a cylinder blocking valve for a hydraulic elevator according to the present invention, in which a plunger 2 is attached to a cylinder 1 so as to be extendable and retractable. Plunger 2
A metal backing 4 , a ground backing 3 , and a backing presser 5 are fitted between the ground portion 6 of the cylinder 1 and the gland portion 6 of the cylinder 1 .
is pressed against the metal backing 4.
シリンダ１には、流路１６が形成され、この流路１６は
シリンダ１の側面に形成された空気抜き孔２０に通じて
いる。A flow path 16 is formed in the cylinder 1, and this flow path 16 communicates with an air vent hole 20 formed in the side surface of the cylinder 1.
塞止弁７は、取付はボルト１３によりシリンダ１に対し
て、空気抜き孔２０を被うようにして取り付けられる。The blocking valve 7 is attached to the cylinder 1 with bolts 13 so as to cover the air vent hole 20.
第２のハウジング１１の細心位置に、挿通孔２５が形成
され、この挿通孔２５の一端側は広径とされて凹部２６
が形成される。第１のハウジング１０ −は第２のハウ
ジング１１と同一外径に形成され、細心位置で第１のハ
ウジング１０を貫通して貫通孔２７が形成される。An insertion hole 25 is formed at a precise position in the second housing 11, and one end of the insertion hole 25 has a wide diameter and a recess 26.
is formed. The first housing 10- is formed to have the same outer diameter as the second housing 11, and a through hole 27 is formed through the first housing 10 at a precise position.
第１のハウジング１０と第２のハウジング１１とが、０
リング１２′を介して重ね合わせられ、凹部２６内に偏
倚ばね９が配される。この偏倚ばね９に一端が係止され
て、貫通孔２７内に浮子８が配設される。The first housing 10 and the second housing 11 are 0
They are superimposed via a ring 12' and a biasing spring 9 is disposed within the recess 26. One end of the biasing spring 9 is locked, and the float 8 is disposed within the through hole 27 .
浮子８はほぼ円錐状に形成され、この円錐の頂点側が偏
倚はね９に係止される。円錐の底面側はほぼ円柱状に突
出され、この円柱と円錐との境界部分に形成される段部
が、負通孔２７の外周に形成された段部と対接可能な構
成となっている。The float 8 is formed into a substantially conical shape, and the apex side of the cone is engaged with the biasing spring 9. The bottom side of the cone protrudes into a substantially cylindrical shape, and the step formed at the boundary between the cylinder and the cone can come into contact with the step formed on the outer periphery of the negative through hole 27. .
重ね合せられた第１及び第２のハウジング１０及び１１
は、貫通孔２７、凹部２６及び挿通孔２５が、互に細心
を一致して配設され、浮子８は貫通孔２７内を細心方向
に移動自在に取り付けられている。Superimposed first and second housings 10 and 11
The through hole 27, the recess 26, and the insertion hole 25 are arranged in close alignment with each other, and the float 8 is attached to be movable in the through hole 27 in the fine direction.
互に重ね合せられた第１及び第２のハウジング１０及び
１１を、０リング１２を介して第１のハウジング１０部
分で、取付ボルト１３によりグランド部６に固定する。The first and second housings 10 and 11, which are stacked on top of each other, are fixed to the ground portion 6 via the O-ring 12 at the first housing 10 portion with a mounting bolt 13.
このようにして、流路１６は貫通孔２７、凹゛部２６及
び挿通孔２５により実質的に延長されて、大気に達する
車路が形成される。In this way, the channel 16 is substantially extended by the through hole 27, the recess 26 and the insertion hole 25 to form a channel that reaches the atmosphere.
浮子８は、この流路内に流路の延長方向に移動自在に設
けられることになる。また、浮子８は流路の入側、即ち
空気抜き孔２０側に対する流体抵抗は、円柱と円錐の境
界の段部と円柱の底面とにより、比較的太に設定される
。一方、浮子８は流路の出側、即ち挿通孔２５側に対す
る流体抵抗は、円錐の周面の流線型により、比較的小に
設定される。The float 8 is provided within this channel so as to be movable in the direction of extension of the channel. Further, the fluid resistance of the float 8 toward the inlet side of the flow path, that is, the air vent hole 20 side, is set to be relatively thick due to the stepped portion at the boundary between the cylinder and the cone and the bottom surface of the cylinder. On the other hand, the fluid resistance of the float 8 toward the outlet side of the flow path, that is, toward the insertion hole 25 side is set to be relatively small due to the streamlined shape of the conical circumferential surface.
流路の出口側、即ち凹部２６と浮子８の端部間に配され
る偏倚ばね９は、浮子８を出口側即ち凹部２６から離す
方向に偏倚している。従って、この状態では流路は開い
て、大気に通じている状態にある。A biasing spring 9 disposed between the outlet side of the channel, that is, the recess 26, and the end of the float 8 biases the float 8 in a direction away from the outlet side, that is, the recess 26. Therefore, in this state, the flow path is open and communicating with the atmosphere.
油圧エレベータの空気抜きに際しては、シリンダ１内に
徐々に作動油を流入し、作動油が塞止弁７から漏出する
のを確認した後に、作動油の流速を高めてシリンダ１内
の油圧を上昇させる。所定の油圧に達すると、浮子８の
流体抵抗の差に基づいて、偏倚ばね９の偏倚力に抗して
浮子８が移動し、流路の出口側が浮子８により自動的に
閉塞される。When venting air from a hydraulic elevator, hydraulic oil is gradually introduced into the cylinder 1, and after confirming that the hydraulic oil leaks from the stop valve 7, the flow rate of the hydraulic oil is increased to increase the oil pressure inside the cylinder 1. . When a predetermined oil pressure is reached, the float 8 moves against the biasing force of the biasing spring 9 based on the difference in fluid resistance of the float 8, and the outlet side of the flow path is automatically closed by the float 8.
このため、シリンダ１内の内圧が高まり、乗りかごの移
動が可能と々る。作業員は、そのまま乗りかごの低速運
転を行ない。グランド部６付近まで乗かとを運転させる
。グランド部６付近に達した作業員は、ボール１４を介
し盲栓１５を閉め込むことが出来る。Therefore, the internal pressure within the cylinder 1 increases, making it possible for the car to move. The worker continues to operate the car at low speed. The passenger is driven to the vicinity of the ground section 6. The worker who has reached the vicinity of the gland portion 6 can close the blind plug 15 via the ball 14.
このようにして、従来はシリンダに徐々に作動油を送り
込むための作業員と、グランド部付近に設は九足場上に
位置し、盲栓を外し空気抜き完了後に再び盲栓を閉め込
む作業員との二基の作業員で行なっていた作業を、全て
一名の作業員で行なうことが可能となる。また、高所に
足場を組む必要もなく、作業の安全性も確保される。In this way, conventionally, there is a worker who gradually feeds hydraulic oil into the cylinder, and a worker who is located on nine scaffoldings near the gland and who removes the blind plug and closes it again after the air is removed. All the work that used to be done by two workers can now be done by one worker. Additionally, there is no need to set up scaffolding at high places, ensuring work safety.
〈発明の効果〉
以上詳細に説明したように、この発明によると油圧エレ
ベータの据付調整作業に際して、シリンダ内の空気抜き
作業を、−名の作業員により効率よく確実に且つ安全に
行なうことが可能な、油圧エレベータのシリンダー用塞
止弁を提供することが出来る。<Effects of the Invention> As explained in detail above, according to the present invention, during the installation and adjustment work of a hydraulic elevator, the air removal work in the cylinder can be carried out efficiently, reliably, and safely by - number of workers. , a blocking valve for a cylinder of a hydraulic elevator can be provided.
第１図はこの発明の実施例の要部の構成を示す原理側面
図、第２図は油圧エレベータの要部の構成を示す原理正
面図である。FIG. 1 is a side view in principle showing the structure of the main parts of an embodiment of the present invention, and FIG. 2 is a front view in principle showing the structure of the main parts of a hydraulic elevator.
Claims (1)
大気に通じて形成され、この流路内に流路の延長方向に
移動自在に浮子が設けられ、この浮子は前記流路の入側
に対する流体抵抗が出側に対する流体抵抗より大となる
ようにその形状が選定され、前記流路の出口側と前記浮
子の端部間に、この端部を前記出口から離す方向に前記
浮子を偏倚させる偏倚ばねが設けられ、前記シリンダ内
の油圧が所定値を越えると前記偏倚ばねの偏倚力に抗し
て前記浮子が移動し、前記流路が閉じられるように構成
されてなることを特徴とする油圧エレベータのシリンダ
ー用塞止弁。A flow path for air removal is formed in a cylinder for a hydraulic elevator and communicates with the atmosphere, and a float is provided in this flow path so as to be movable in the extending direction of the flow path, and this float reduces the fluid resistance to the entrance side of the flow path. a biasing spring, the shape of which is selected such that the fluid resistance is greater than the fluid resistance toward the outlet side, and which biases the float between the outlet side of the flow path and the end of the float in a direction that moves this end away from the outlet; A hydraulic elevator characterized in that the hydraulic elevator is configured such that when the hydraulic pressure in the cylinder exceeds a predetermined value, the float moves against the biasing force of the biasing spring and the flow path is closed. Blocking valve for cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17660286A JPS6337092A (en) | 1986-07-29 | 1986-07-29 | Shut-off valve for cylinder of hydraulic elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17660286A JPS6337092A (en) | 1986-07-29 | 1986-07-29 | Shut-off valve for cylinder of hydraulic elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6337092A true JPS6337092A (en) | 1988-02-17 |
| JPH0471834B2 JPH0471834B2 (en) | 1992-11-16 |
Family
ID=16016436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17660286A Granted JPS6337092A (en) | 1986-07-29 | 1986-07-29 | Shut-off valve for cylinder of hydraulic elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6337092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010146836A (en) * | 2008-12-18 | 2010-07-01 | Mitsumi Electric Co Ltd | Cable mounting method |
-
1986
- 1986-07-29 JP JP17660286A patent/JPS6337092A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010146836A (en) * | 2008-12-18 | 2010-07-01 | Mitsumi Electric Co Ltd | Cable mounting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0471834B2 (en) | 1992-11-16 |
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