JP2953249B2 - air pump - Google Patents
air pumpInfo
- Publication number
- JP2953249B2 JP2953249B2 JP5097454A JP9745493A JP2953249B2 JP 2953249 B2 JP2953249 B2 JP 2953249B2 JP 5097454 A JP5097454 A JP 5097454A JP 9745493 A JP9745493 A JP 9745493A JP 2953249 B2 JP2953249 B2 JP 2953249B2
- Authority
- JP
- Japan
- Prior art keywords
- air supply
- valve
- air
- pipe
- opens
- 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.)
- Expired - Lifetime
Links
Landscapes
- Jet Pumps And Other Pumps (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば工作機械の使用
済みの切削液を汲み上げるためのエアポンプに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air pump for pumping used cutting fluid of, for example, a machine tool.
【０００２】工作機械での使用済みの切削液は、切削液
受皿に一旦溜めて、ある程度の量が溜まるとこれをポン
プなどで抜き取っており、かかるポンプには、従来例え
ば、遠心ポンプや歯車ポンプなどが使用される。しか
し、使用済みの切削液には、小さい切り屑などのゴミが
混入しているため、この切り屑がポンプの羽根車にかん
でポンプの故障の原因となる不都合があった。[0002] The used cutting fluid in a machine tool is once stored in a cutting fluid receiving pan, and when a certain amount of the cutting fluid is collected, the fluid is withdrawn by a pump or the like. Conventionally, such pumps include a centrifugal pump and a gear pump. Are used. However, since the used cutting fluid contains dust such as small chips, there is a problem that the chips are applied to the impeller of the pump and cause a failure of the pump.
【０００３】そこで羽根車を用いないポンプとして、例
えば特公昭６３−５０２１９８号公報に見られる流体ポ
ンプがあり、これは下部に取水開口を有するチャンバー
の上部に圧縮空気の入口を設け、液体の排出管を内部に
開口し、また、エアベントを開口するもので、取水開口
に一方向弁を設け、エアベントに弁を設け、あるいはエ
アベントを圧縮空気の供給管に組み込む構成とする場合
はここに弁を設けている。[0003] As a pump which does not use an impeller, there is, for example, a fluid pump disclosed in Japanese Patent Publication No. 63-502198, which is provided with an inlet for compressed air at an upper part of a chamber having a water intake opening at a lower part, and discharges liquid. A pipe is opened inside, and an air vent is opened.If a one-way valve is provided at the water intake opening, a valve is provided at the air vent, or if the air vent is incorporated in the compressed air supply pipe, a valve is provided here. Provided.
【０００４】そして、取水開口からチャンバーに取り込
んだ液の液位が上昇すると、これにともないフロートも
上昇し、フロートの上昇によってエアベントに設けた弁
が閉じると、チャンバー内に供給される圧縮空気のエア
圧により取り込んだ液が排出管から排出される。なお、
圧縮空気の供給管にベントを組み込んでいる場合は、こ
の弁を別途閉じる。[0004] When the liquid level of the liquid taken into the chamber from the water intake opening rises, the float also rises, and when the float rises, the valve provided on the air vent is closed, and the compressed air supplied into the chamber is closed. The liquid taken in by the air pressure is discharged from the discharge pipe. In addition,
If a vent is incorporated in the compressed air supply line, close this valve separately.
【０００５】[0005]
【発明が解決しようとする課題】圧縮空気のエア圧によ
りチャンバー内の液体を排出するポンプは、羽根車を使
用しない点では、これを切削液汲み上げ用のポンプとし
て使用しても切り屑がポンプに詰まるおそれはないが、
エアベントの弁をフロートにより作動させるものである
ため、フロートが弁座に密着したまま、液体の取り入れ
が出来なくなるおそれがある。A pump for discharging a liquid in a chamber by the air pressure of compressed air does not use an impeller, and therefore, even if this pump is used as a pump for pumping a cutting fluid, chips are pumped. There is no risk of getting stuck,
Since the valve of the air vent is operated by the float, the liquid may not be taken in while the float is in close contact with the valve seat.
【０００６】また、圧縮空気の供給管にベントを組み込
むタイプでも、ここに設けた弁だけを別途動作させるた
めの機構を必要とし、構成が複雑となる。Further, the type in which a vent is incorporated in the compressed air supply pipe also requires a mechanism for separately operating only the valve provided here, and the configuration becomes complicated.
【０００７】本発明の目的は前記従来例の不都合を解消
し、構造が簡単で、弁が確実に動作し、液の取り入れと
排出の切り換え時に液が逆流することもなくて液の取り
入れと排出が確実に行え、取り入れもスムーズに行え、
しかも切り屑などのゴミで損傷するおそれもないエアポ
ンプを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to have a simple structure, to operate the valve reliably, and to prevent the liquid from flowing backward when switching between the liquid intake and the discharge. Can be performed reliably, and the intake can be performed smoothly,
Another object of the present invention is to provide an air pump that is not likely to be damaged by dust such as chips.
【０００８】[0008]
【課題を解決するための手段】本発明は前記目的を達成
するため、上蓋と底蓋で密閉されたケーシング内に上蓋
と底蓋を貫通したエア供給管を配設し、該エア供給管の
上方部に前記ケーシング内へのエアの供給口を開口し、
該エアの供給口の下方に位置させてエア供給管に大気連
通管を連通し、エア供給管の下方部にケーシング内への
液流入口を開口し、前記エアの供給口及び大気連通管を
開閉する弁をエア供給管に設け、前記液流入口を開閉す
る弁をエア供給管に設け、該弁に液流入口を開く方向に
付勢するバネを設け、エア供給口と大気連通管を開閉す
る弁及び液流入口を開閉する弁を連結杆で連結し、ケー
シング内の下方に開口した排出管をケーシング外へ導出
して構成され、エア供給管にエアを供給することにより
エア供給管と大気連通管を開閉する弁及び液流入口を開
閉する弁が下降し、エア供給口と大気連通管を開閉する
弁がエア供給管を開き、大気連通管を閉じ、液流入口を
開閉する弁が液流入口を閉じ、エア供給管のエアの供給
を絶つとバネによりエア供給口と大気連通管を開閉する
弁がエアの供給口を閉じ、大気連通管を開き、液流入口
を開閉する弁が液流入口を開くことを要旨とするもので
ある。According to the present invention, in order to achieve the above object, an air supply pipe penetrating the top cover and the bottom cover is provided in a casing sealed by the top cover and the bottom cover, Open an air supply port into the casing at the upper part,
An air communication pipe is connected to the air supply pipe at a position below the air supply port, a liquid inlet to the casing is opened below the air supply pipe, and the air supply port and the air communication pipe are connected to each other. A valve that opens and closes is provided in the air supply pipe, a valve that opens and closes the liquid inlet is provided in the air supply pipe, and a spring that urges the valve in a direction that opens the liquid inlet is provided in the valve. A valve that opens and closes and a valve that opens and closes the liquid inlet are connected by a connecting rod, and a discharge pipe opened downward in the casing is led out of the casing. The air supply pipe is supplied by supplying air to the air supply pipe. The valve that opens and closes the air communication pipe and the valve that opens and closes the liquid inlet lowers, and the valve that opens and closes the air supply port and the air communication pipe opens the air supply pipe, closes the air communication pipe, and opens and closes the liquid inlet. When the valve closes the liquid inlet and cuts off the air supply from the air supply pipe, a spring Valve for opening and closing the air supply port and the atmosphere communicating tube closes the air supply port, to open the atmosphere communicating pipe, in which a valve for opening and closing the liquid inlet and summarized in that to open the liquid inlet.
【０００９】[0009]
【作用】本発明によれば、液受皿内に溜まった使用済み
の切削液などの液は液流入口からケーシング内に流入し
ここに溜まる。エア供給管にエアを送ると、このエア圧
で弁が移動して液流入口を閉じ、かつエアの供給口から
ケーシング内に流入して内部を加圧するから、内部の液
が液排出管から排出される。このとき、大気連通管と液
流入口とを閉じてからエアの供給口を開放し、ケーシン
グ内にエアを供給することで、ケーシング内の切削液が
液流入口から液受皿内に逆流することを防止できる。そ
して、エアの供給を停止すると弁に加わるエア圧がなく
なるから、弁はバネの弾力により復位して液流入口を開
放する。同時に前記液流入口を開閉する弁に連結杆で連
結されて、大気連通管とエア供給管との連通口を開閉す
る弁が開き、ケーシング内が大気開放状態となるから、
ケーシング内に液受皿内からの液がスムーズに流入す
る。According to the present invention, used fluid such as used cutting fluid accumulated in the fluid receiving tray flows into the casing from the fluid inlet and accumulates therein. When air is sent to the air supply pipe, the valve moves by this air pressure to close the liquid inlet, and flows into the casing from the air supply port to pressurize the inside, so that the liquid inside is discharged from the liquid discharge pipe. Is discharged. At this time, by closing the atmosphere communication pipe and the liquid inlet, opening the air supply port, and supplying air into the casing, the cutting fluid in the casing flows backward from the liquid inlet into the liquid receiving tray. Can be prevented. Then, when the supply of air is stopped, the air pressure applied to the valve disappears, so that the valve is repositioned by the elasticity of the spring to open the liquid inlet. At the same time, the valve that opens and closes the liquid inflow port is connected by a connecting rod, and the valve that opens and closes the communication port between the atmosphere communication pipe and the air supply pipe opens, so that the inside of the casing is open to the atmosphere.
The liquid from the liquid receiving tray flows into the casing smoothly.
【００１０】[0010]
【実施例】以下、図面について本発明の実施例を詳細に
説明する。図１は本発明のエアポンプの実施例を示す説
明図で、工作機械の使用済みの切削液を汲み上げるポン
プに実施する場合について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of an air pump according to the present invention. A case where the present invention is applied to a pump for pumping up used cutting fluid of a machine tool will be described.
【００１１】図２はかかる工作機械に実施する場合の全
体構成図で、図中１は工作機械、２は切削液タンクで、
ポンプ３を介して切削液タンク２と工作機械１とを供給
管４で接続する。工作機械１の下方に使用済みの切削液
受皿５を設け、この切削液受皿５に工作機械１に接続す
る切削液の排出管２２を開口するとともに、内部に本発
明のエアポンプ６を配設する。FIG. 2 is an overall configuration diagram of the case where the present invention is applied to such a machine tool, in which 1 is a machine tool, 2 is a cutting fluid tank,
The cutting fluid tank 2 and the machine tool 1 are connected by a supply pipe 4 via a pump 3. A used cutting fluid receiving pan 5 is provided below the machine tool 1, a cutting fluid discharge pipe 22 connected to the machine tool 1 is opened in the cutting fluid pan 5, and an air pump 6 of the present invention is disposed therein. .
【００１２】エアポンプ６は、図１に示すように、上蓋
７ｂと底蓋７ｃとにより密閉されたケーシング７に脚７
ａを取付け、該ケーシング７を貫通させてエア供給管８
をケーシング７内に配設する。そして、該エア供給管８
の下端は開放して下方部にケーシング７内とを連通する
液流入口９を開口し、この位置でエア供給管８内に弁１
０を上下にスライド自在に設ける。この弁１０は常時は
板バネ１１の弾力により液流入口９を開放するよう位置
決めされている。また、１２は弁１０のそれ以上の下降
を阻止するストッパーである。As shown in FIG. 1, the air pump 6 has legs 7 attached to a casing 7 sealed by an upper lid 7b and a bottom lid 7c.
a, and the air supply pipe 8
Is disposed in the casing 7. And the air supply pipe 8
The lower end of the valve is opened to open a liquid inlet 9 communicating with the inside of the casing 7 at a lower portion, and the valve 1 is inserted into the air supply pipe 8 at this position.
0 is slidably provided up and down. The valve 10 is normally positioned so as to open the liquid inlet 9 by the elasticity of the leaf spring 11. Reference numeral 12 denotes a stopper that prevents the valve 10 from descending further.
【００１３】エア供給管８の上方部にケーシング７内へ
のエアの供給口１３を開口し、液排出管１４の下端をケ
ーシング７内の底部近くに開口する。An air supply port 13 into the casing 7 is opened above the air supply pipe 8, and a lower end of the liquid discharge pipe 14 is opened near the bottom inside the casing 7.
【００１４】さらに、エア供給管８に大気連通管２５を
開口し、液流入口９を開閉する弁１０の上部に連結杆２
４でエアの供給口１３および大気連通管２５を開閉する
弁２３を連結する。この場合、弁１０が液流入口９を閉
じ、かつ弁２３が大気連通管２５を閉じてから弁２３が
供給口１３を開くように連結杆２４の長さや弁１０，２
３の液流入口９、エアの供給口１３、大気連通管２５に
対する相対的位置関係を決定する。Further, an air communication pipe 25 is opened in the air supply pipe 8, and a connecting rod 2 is provided above a valve 10 for opening and closing the liquid inlet 9.
At 4, the air supply port 13 and the valve 23 that opens and closes the atmosphere communication pipe 25 are connected. In this case, the length of the connecting rod 24 and the valves 10 and 2 are adjusted so that the valve 10 closes the liquid inlet 9 and the valve 23 closes the atmosphere communication pipe 25 before the valve 23 opens the supply port 13.
The relative positional relationship with respect to the liquid inlet 9, the air supply port 13, and the atmosphere communication pipe 25 is determined.
【００１５】エア供給管８の上端を三方弁１５を介して
エア供給源１６としてのエアコンプレッサなどに接続す
る。この三方弁１５はエア供給管８をエア供給源１６側
と大気とに切り換える機能を有する。図中１７はエア制
御装置で、三方弁１５の起動時間や起動間隔を入力設定
する入力手段としてのキーボード１８の設定信号と、マ
ニュアル操作による場合のスタートスイッチ２０からの
スタート信号とタイマー２１の時間信号とをエア制御部
１９に導入し、該エア制御部１９の制御信号を三方弁１
５に導入した。The upper end of the air supply pipe 8 is connected via a three-way valve 15 to an air compressor or the like as an air supply source 16. The three-way valve 15 has a function of switching the air supply pipe 8 between the air supply source 16 side and the atmosphere. In the figure, reference numeral 17 denotes an air control device, which is a setting signal of a keyboard 18 as input means for inputting and setting a start time and a start interval of the three-way valve 15, a start signal from a start switch 20 in the case of manual operation, and a time of a timer 21. And a control signal from the air control unit 19 to the three-way valve 1.
5 was introduced.
【００１６】次に動作について説明すると、工作機械１
での使用済の切削液は排出管２２から切削液受皿５に流
入し、ここに溜まる。この切削液受皿５にエアポンプ６
を置き、液排出管１４の他端を切削液タンク２に接続す
る。通常は、三方弁１５は大気側に切替わりエア供給管
８は大気と連通している。よって、エア供給管８内にエ
ア圧が加わらない状態では、板バネ１１の弾力により弁
１０、２３が連動して上方に押し上げられて液流入口９
から外れた位置にある。Next, the operation will be described.
The used cutting fluid flows into the cutting fluid receiving tray 5 from the discharge pipe 22 and accumulates therein. An air pump 6 is attached to the cutting fluid receiving pan 5.
And the other end of the liquid discharge pipe 14 is connected to the cutting liquid tank 2. Normally, the three-way valve 15 is switched to the atmosphere side, and the air supply pipe 8 is in communication with the atmosphere. Therefore, when no air pressure is applied to the inside of the air supply pipe 8, the valves 10 and 23 are pushed upward in conjunction with each other by the elasticity of the leaf spring 11, and
It is out of the position.
【００１７】また、弁２３は大気連通管２５を開いてい
る。よって、孔２６、大気連通管２５によってケーシン
グ７内は大気開放となっているので、切削液受皿５に溜
まった切削液はこの液流入口９からケーシング７内に流
入する。The valve 23 opens an atmosphere communication pipe 25. Therefore, since the inside of the casing 7 is opened to the atmosphere by the hole 26 and the atmosphere communication pipe 25, the cutting fluid accumulated in the cutting fluid receiving tray 5 flows into the casing 7 from the fluid inlet 9.
【００１８】この状態から、キーボード１８でエア制御
部１９に予め入力設定した三方弁１５の駆動時間になる
と、または時間設定していない場合はスタートスイッチ
２０を押すと、三方弁１５がエア供給源１６側に切り替
わる。これにより、エア供給源１６からのエアがエア供
給管８に入りエア圧により弁１０，２３が同時に下降
し、弁１９は板バネ１１の弾力に抗して下方に押され液
流入口９をすぐに閉じる。この場合、ストッパー１２に
より弁１０のそれ以上の下降が阻止され、弁１０がエア
供給管８から飛び出ることはない。また、弁２３は大気
連通管２５を閉じるが、エアの供給口１３はまだ開放し
ない。In this state, when the driving time of the three-way valve 15 previously set in the air control unit 19 by the keyboard 18 is reached, or when the time is not set, the start switch 20 is pressed, and the three-way valve 15 is turned on. Switch to 16 side. As a result, air from the air supply source 16 enters the air supply pipe 8, and the valves 10 and 23 are simultaneously lowered by the air pressure. The valve 19 is pushed downward against the elasticity of the leaf spring 11, and the liquid inlet 9 is opened. Close immediately. In this case, the valve 12 is prevented from further descending by the stopper 12, and the valve 10 does not jump out of the air supply pipe 8. Further, the valve 23 closes the atmosphere communication pipe 25 but does not open the air supply port 13 yet.
【００１９】その後、さらに弁１０，２３が下降すると
液流入口９及び大気連通管２５を閉じたままで、弁２３
がエアの供給口１３を開放するから、エア供給管８に供
給されたエアは供給口１３からケーシング７内に入り、
内部を加圧する。その結果、ケーシング７内に溜まって
いる切削液は排出管１４から排出されて切削液タンク２
に戻り、再使用される。Thereafter, when the valves 10 and 23 further descend, the valve 23 is kept closed with the liquid inlet 9 and the atmosphere communication pipe 25 closed.
Opens the air supply port 13, the air supplied to the air supply pipe 8 enters the casing 7 from the supply port 13,
Pressurize inside. As a result, the cutting fluid stored in the casing 7 is discharged from the discharge pipe 14 and the cutting fluid tank 2
To be reused.
【００２０】この場合、弁１０，２３により液流入口
９、大気連通管２５が完全に閉じてから、エア供給口１
３が開放されるから、ケーシング７内が加圧されるとき
に内部の切削液が下方の液流入口９から逆流して切削液
受皿６に戻ることを阻止できる。In this case, after the liquid inlet 9 and the atmosphere communication pipe 25 are completely closed by the valves 10 and 23, the air supply port 1 is closed.
Since the opening 3 is opened, when the inside of the casing 7 is pressurized, the internal cutting fluid can be prevented from flowing backward from the lower fluid inflow port 9 and returning to the cutting fluid receiving tray 6.
【００２１】その後、設定時間が経過するとタイマー２
１が作動し、またはスタートスイッチ２０をオフする
と、三方弁１５が大気側に切り替わり、エア供給管８が
大気と再び連通する。その結果、弁１０が板バネ１１の
弾力により上方に押し上げられ液流入口９が開放され切
削液受皿５内の液が流入する。Thereafter, when the set time has elapsed, the timer 2
When 1 operates or the start switch 20 is turned off, the three-way valve 15 switches to the atmosphere side, and the air supply pipe 8 communicates with the atmosphere again. As a result, the valve 10 is pushed upward by the elasticity of the leaf spring 11, the liquid inlet 9 is opened, and the liquid in the cutting liquid receiving tray 5 flows.
【００２２】同時に前記弁１０と連結杆２４で連結して
ある弁２３も上方に押し上げられ、エア供給口１３を閉
じ、大気連通管２５を開放する。At the same time, the valve 23 connected to the valve 10 by the connecting rod 24 is also pushed upward to close the air supply port 13 and open the atmosphere communication pipe 25.
【００２３】[0023]
【発明の効果】以上述べたように本発明のエアポンプ
は、構造が簡単で、液流入口に設けた弁をバネの弾力に
より開くようにし、液排出のために加えるエア圧により
閉じるようにしたから、ケーシング内への液の取り入
れ、ケーシングからの液の排出も確実に行え、しかも従
来のポンプのように羽根車などを用いないから切り屑な
どのゴミで損傷するおそれもないものである。さらに、
ケーシングには大気連通管を別途開口したから、液取り
入れがスムーズに行うことができ、また、液流入口を閉
じてから液排出のためにエア圧を加えるようにすること
で、液の取り入れから排出への切り換え時に液がケーシ
ングから逆流することも防止でき、液排出もスムーズに
行えるものである。As described above, the air pump of the present invention has a simple structure, and the valve provided at the liquid inlet is opened by the elasticity of the spring and closed by the air pressure applied for discharging the liquid. Thus, the liquid can be taken into the casing and the liquid can be discharged from the casing without fail, and there is no danger of being damaged by dust such as chips because the impeller is not used unlike the conventional pump. further,
An air communication pipe is separately opened in the casing, so that liquid can be taken in smoothly.In addition, by closing the liquid inlet and applying air pressure to discharge the liquid, the liquid can be taken in The liquid can be prevented from flowing backward from the casing at the time of switching to discharge, and the liquid can be discharged smoothly.
【図１】本発明のエアポンプの実施例を示す説明図であ
る。FIG. 1 is an explanatory view showing an embodiment of an air pump of the present invention.
【図２】本発明のエアポンプの全体構成図である。FIG. 2 is an overall configuration diagram of an air pump of the present invention.
１…工作機械 ２…切削液タン
ク ３…ポンプ ４…供給管 ５…切削液受皿 ６…エアポンプ ７…ケーシング ７ａ…脚 ７ｂ…上蓋 ７ｃ…底蓋 ８…エア供給管 ９…液流入口 １０…弁 １１…板バネ １２…ストッパー １３…エアの供
給口 １４…排出管 １５…三方弁 １６…エア供給源 １７…エア制御
装置 １８…キーボード １９…エア制御
部 ２０…スタートスイッチ ２１…タイマー ２２…排出管 ２３…弁 ２４…連結杆 ２５…大気連通
管 ２６…孔DESCRIPTION OF SYMBOLS 1 ... Machine tool 2 ... Cutting fluid tank 3 ... Pump 4 ... Supply pipe 5 ... Cutting fluid receiving pan 6 ... Air pump 7 ... Casing 7a ... Leg 7b ... Top cover 7c ... Bottom cover 8 ... Air supply pipe 9 ... Liquid inflow port 10 ... Valve DESCRIPTION OF SYMBOLS 11 ... Leaf spring 12 ... Stopper 13 ... Air supply port 14 ... Discharge pipe 15 ... Three-way valve 16 ... Air supply source 17 ... Air control device 18 ... Keyboard 19 ... Air control unit 20 ... Start switch 21 ... Timer 22 ... Discharge pipe 23 ... valve 24 ... connecting rod 25 ... atmosphere communication pipe 26 ... hole
Claims (1)
上蓋と底蓋を貫通したエア供給管を配設し、該エア供給
管の上方部に前記ケーシング内へのエアの供給口を開口
し、該エアの供給口の下方に位置させてエア供給管に大
気連通管を連通し、エア供給管の下方部にケーシング内
への液流入口を開口し、前記エアの供給口及び大気連通
管を開閉する弁をエア供給管に設け、前記液流入口を開
閉する弁をエア供給管に設け、該弁に液流入口を開く方
向に付勢するバネを設け、エア供給口と大気連通管を開
閉する弁及び液流入口を開閉する弁を連結杆で連結し、
ケーシング内の下方に開口した排出管をケーシング外へ
導出して構成され、エア供給管にエアを供給することに
よりエア供給管と大気連通管を開閉する弁及び液流入口
を開閉する弁が下降し、エア供給口と大気連通管を開閉
する弁がエア供給管を開き、大気連通管を閉じ、液流入
口を開閉する弁が液流入口を閉じ、エア供給管のエアの
供給を絶つとバネによりエア供給口と大気連通管を開閉
する弁がエアの供給口を閉じ、大気連通管を開き、液流
入口を開閉する弁が液流入口を開くことを特徴とするエ
アポンプ。1. An air supply pipe penetrating the upper lid and the bottom lid is disposed in a casing sealed by the upper lid and the bottom lid, and an air supply port for the inside of the casing is opened above the air supply pipe. An air communication pipe is connected to the air supply pipe at a position below the air supply port, and a liquid inlet to the casing is opened below the air supply pipe, and the air supply port and the air communication are opened. A valve for opening and closing the pipe is provided in the air supply pipe, a valve for opening and closing the liquid inlet is provided in the air supply pipe, and a spring for urging the valve in a direction to open the liquid inlet is provided in the valve, and the valve is in communication with the air. A valve for opening and closing the pipe and a valve for opening and closing the liquid inlet are connected by a connecting rod,
A discharge pipe that opens downward in the casing is led out of the casing, and the valve that opens and closes the air supply pipe and the atmosphere communication pipe by supplying air to the air supply pipe and the valve that opens and closes the liquid inlet are lowered. Then, the valve for opening and closing the air supply port and the air communication pipe opens the air supply pipe, closes the air communication pipe, and the valve for opening and closing the liquid inlet closes the liquid inlet, and cuts off the air supply from the air supply pipe. An air pump, wherein a valve that opens and closes an air supply port and an atmosphere communication pipe by a spring closes an air supply port, opens an air communication pipe, and a valve that opens and closes a liquid inflow port opens a liquid inflow port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5097454A JP2953249B2 (en) | 1993-04-23 | 1993-04-23 | air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5097454A JP2953249B2 (en) | 1993-04-23 | 1993-04-23 | air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06307400A JPH06307400A (en) | 1994-11-01 |
| JP2953249B2 true JP2953249B2 (en) | 1999-09-27 |
Family
ID=14192760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5097454A Expired - Lifetime JP2953249B2 (en) | 1993-04-23 | 1993-04-23 | air pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2953249B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5473395B2 (en) * | 2009-05-11 | 2014-04-16 | 崇浩 青木 | Liquid transfer device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50111607A (en) * | 1974-02-12 | 1975-09-02 | ||
| JPS63110699U (en) * | 1987-01-12 | 1988-07-15 |
-
1993
- 1993-04-23 JP JP5097454A patent/JP2953249B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06307400A (en) | 1994-11-01 |
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