JPH02104990A - Reciprocating aspirator - Google Patents

Abstract

PURPOSE:To suck a fluid at both ways too by setting up a sliding partition wall, provided with an empty bag being conducted to a nonreturn exhaust valve and the outside, in a hollow body provided with a nonreturn suction valve at one side and the nonreturn exhaust valve at the other side, and expanding or contracting this empty bag with reciprocating motion of the sliding partition wall. CONSTITUTION:In a hollow body 2, a nonreturn exhaust valve 7 is installed in an exhaust port 22, and in a hollow cover 1, a nonreturn suction valve 6 is installed in a suction part 11. In the hollow body 2, there are provided with a bellows cylindrical empty bag 3 smaller in diameter than an inner diameter of the hollow body and a sliding partition wall 4 provided with an exhaust check valve 41. The empty bag 3 is made free of expansion or contraction and a compression spring 3a is set up inside, and further it is fitted free of slide motion and airtightly and it is conducted to the outside with a hollow conducting shaft 5 fixed to the sliding partition wall 4. When this conducting shaft is pushed, a fluid is sucked out of a suction check valve 6 by negative pressure being produced with the empty bag contracted, and when it is restored by the spring, suction from the check valve 6 and exhaust from the exhaust check valve 7 both are carried out, thus the bag performs its suctional action at both ways too.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はピストン運動である往復操作の往、復でいずれ
の操作においても、気体、液体等を吸引す・ることがで
きる往復吸引器に関するものであへ〔従来の技術〕 従来、気体、液体等を吸引する吸引器には注射器のよう
なシリンダーピストン形式のものがあａ〔発明が解決し
ようとする課題〕 従来の注射器のようなシリンダーピストン形式の吸引器
は、ピストン運動である往復操作の往、復いずれか片方
の操作においては吸引できなかった。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a reciprocating suction device that can aspirate gas, liquid, etc. in both forward and backward reciprocating operations, which are piston movements. [Prior art] Conventionally, aspirators for sucking gas, liquid, etc., have a cylinder piston type like a syringe.a [Problem to be solved by the invention] A cylinder like a conventional syringe. A piston-type suction device cannot perform suction in either forward or backward operation, which is a reciprocating operation that is a piston movement.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は１以上の課題を解決したピストン運動である往
復操作の往、復いずれの操作においても吸引できる、新
規な往復吸引器を提供するものである。以下その構成を
説明する。The present invention provides a novel reciprocating suction device that can perform suction in both forward and backward operations, which is a reciprocating piston motion, which solves one or more problems. The configuration will be explained below.

片側に逆止吸引弁を配した吸引口と、他の片側に逆止排
出弁を配した排出口を設けた空胴体が形成する作用空間
に、伸縮自在な空袋を配ｌＡ該空袋と一体にした摺動隔
壁は、その壁面に逆止排出弁を配し外周縁は摺動抵抗の
少ないシール剤を配して前記空胴体に摺動自由に内接さ
せ、ざらに該摺動隔壁の中央に一体にした前記空袋に導
通する中空の導通シャフトは、前記空胴体に設けた貫通
孔が気密を保持し摺動自由にして該空胴体の外に突出さ
せ導通孔を有する押手を取りつける。また、前記空袋に
圧縮スプリングを配して伸縮する該空袋の形状復帰を容
易にするさらに吸引した気体。A stretchable empty bag is placed in a working space formed by an empty body having a suction port with a check suction valve on one side and a discharge port with a check discharge valve on the other side. The integrated sliding bulkhead has a check discharge valve on its wall surface, a sealant with low sliding resistance is placed on the outer periphery, and is inscribed in the hollow body to freely slide. A hollow conduction shaft that is connected to the empty bag integrated in the center of the hollow body has a through hole provided in the hollow body that maintains airtightness and can freely slide so that it protrudes outside of the empty body and connects to the pusher having the conduction hole. Attach. Further, a compression spring is disposed in the empty bag to facilitate the return of the expanded and contracted empty bag to the sucked gas.

液体等に混在するゴミなどの異物を分離除去するために
、吸引口から排出口の間の流通路に着脱自在なフィルタ
ーを配する。A removable filter is placed in the flow path between the suction port and the discharge port to separate and remove foreign substances such as dust mixed in the liquid.

なを各逆止弁は家庭で用いる給油ポンプに付したものと
同様の微圧に順じて遊動する舌状薄板である。Each check valve is a tongue-shaped thin plate that moves in response to slight pressure, similar to those attached to household oil pumps.

〔作　　用〕[For production]

以上の構成において導通シャフトの押手を押圧すると摺
動隔壁が吸引口側に摺動し一体とした伸縮自在な空袋は
圧縮スプリングと共に圧縮され。In the above configuration, when the pusher of the conduction shaft is pressed, the sliding partition wall slides toward the suction port side, and the integral telescopic empty bag is compressed together with the compression spring.

該空袋内空気は該導通シャフトを経て空胴体の外に放出
しつつ縮小する。これに対して空胴体の作用空間は大気
圧よりも負圧になり、負圧に順じてか動した空胴体の逆
止排出弁は閉じて負圧を保ち、同時に、負圧に順じて遊
動した逆止吸引弁は反対に開いて負圧になった空胴体の
作用空間が大気圧に戻るべく吸引口より気体、液体等を
吸引する。The air inside the empty bag is discharged to the outside of the empty body through the conduction shaft and is reduced in size. On the other hand, the working space of the empty body has a negative pressure compared to the atmospheric pressure, and the check discharge valve of the empty body, which has moved in accordance with the negative pressure, closes and maintains the negative pressure. The non-return suction valve, which has moved freely, opens in the opposite direction and suctions gas, liquid, etc. from the suction port in order to return the working space of the empty body, which has become under negative pressure, to atmospheric pressure.

次に押手の押圧を解除すると吸引口側にある摺動隔壁は
空袋に配された圧縮スプリングによって排出口側に摺動
し吸引口側の作用空間は大気圧よりも負圧になり、負圧
に順じて遊動した摺動隔壁の隔壁弁は閉じて負圧を保ち
、逆止吸引弁は開いて前記同様大気圧に戻るべく吸引す
る。一方摺動隔壁の排出口側作用空間は大気圧よりも正
圧になり、正圧に順じて遊動じた空胴体の逆止排出弁は
開いて吸引した気体、液体等を排出口より空１１４体の
外に排出する。Next, when the pressure of the pusher is released, the sliding bulkhead on the suction port side slides toward the discharge port side by the compression spring placed on the empty bag, and the working space on the suction port side becomes a negative pressure compared to atmospheric pressure. The partition valve of the sliding partition, which has moved in accordance with the pressure, closes to maintain negative pressure, and the check suction valve opens to draw suction back to atmospheric pressure as described above. On the other hand, the pressure in the working space on the discharge port side of the sliding bulkhead becomes more positive than the atmospheric pressure, and the check discharge valve of the empty body, which moves freely in accordance with the positive pressure, opens and evacuates the sucked gas, liquid, etc. from the discharge port. Excrete 114 bodies.

すなわち、ピストン運動である、押ｆの往復操作の往、
復いずれの操作においても吸引することができるのであ
る。That is, during the reciprocating operation of the push f, which is a piston movement,
Suction can be performed in both operations.

また、吸引した気体、液体等に混在したゴミなどの異物
は流通路に配したフィルターによって分離捕捉される。Furthermore, foreign matter such as dust mixed in the sucked gas, liquid, etc. is separated and captured by a filter placed in the flow path.

〔実施例〕〔Example〕

本発明の第１実施例を断面図で示す第１〜３図において
説明すると、１は、空胴蓋で中央に突設した筒状の吸引
部！■の外端に舌状薄板の逆止吸引弁６を配し、その片
面が当接する弁座６２を有した吸引口６１を前記吸引部
１１に螺着し、内面には環状の溝部１２を刻設する。２
は、排出孔２２に弁座２３を設け、突設した排出部２１
に片面がち接する前記同様舌状薄板の逆止排出弁７を配
し、反対側には該逆止排出弁が遊動する弁室７２を有し
た排出ロア１を螺着する。さらに中央に突設した貫通孔
２４には環状ｔ１１１８１を設けて″０″リング８を嵌
装し、円筒状外周縁には取手２５を有した空胴体である
。前記空胴体２は前記空胴蓋１がパツキン１３を介して
螺着密閉し作用空間を形成する。３は、可撓性のポリエ
チレン（他の樹脂材、あるいはゴム材等でも良い、）で
成型した空袋である。該空袋３は上部に括れて螺設した
開放口３１を設け、中央付近は前記空胴体２の作用空間
に流通路１００を残すように該空胴体の内径よりも適宜
小径な周縁ジャバラ円筒状にし、縦方向伸縮自在とする
。また、一体にした底部には環状の係止溝３４を刻設し
、その外周縁には間欠して設けた４本の脚部３２の先端
が前記空胴Ｍｌの溝部１２に嵌合し、該空袋の横振れを
防止すると共に前記空胴蓋１との間の流通路１００を保
護すム４は、前記空袋３の開放口３１にパツキン３３を
介して密に螺着した摺動隔壁である。該摺動隔壁は中央
に段部を設けて螺設した連結口４４を設け、また、作用
空間の流通路１００に面した周辺には２ケの隔壁孔４２
を対称に設けて逆止弁４１を配し、さらに外周端にはシ
ール溝４５を設けてフェルト４３（他の部材でも良い）
を嵌接着し、前記空胴体２に気密を保持し摺動自由に内
接すム５は、一端が前記摺動隔壁４の連結口４４の段部
にパツキン４６を介して密に螺着連結し前記空袋３に導
通する中空の導通シャフトで、他の一端は前記空胴体２
に嵌装した“０パリング８に気密を保持され摺動自由に
されて貫通し、該空胴体の外に突出し、その先端には導
通孔５２を有した押手５１を嵌固着する。また、３ａは
、前記摺動隔壁４と、前記空袋３底部の各内面中央に、
それぞれ凸部４７，３５．を設けて係止した圧縮スプリ
ングである。さらに、ｌＯは、断面Ｗ形状に成型したフ
ィルターである。該フィルターｌＯは、上方外周縁が前
記空袋３底部の係止溝３４に、また中央内側に突状に設
けた導入口は前記空胴蓋１の突設した内側の吸引部１１
の内端にそれぞれ着脱自在に嵌合係止する。The first embodiment of the present invention will be explained with reference to FIGS. 1 to 3, which are cross-sectional views. 1 is a cylindrical suction portion protruding from the center of the cavity lid! A check suction valve 6 in the form of a tongue-shaped thin plate is disposed on the outer end of (2), and a suction port 61 having a valve seat 62 that is in contact with one side thereof is screwed onto the suction portion 11, and an annular groove portion 12 is provided on the inner surface. engrave. 2
In this example, a valve seat 23 is provided in the discharge hole 22, and a protruding discharge portion 21 is provided.
A check discharge valve 7 made of a thin tongue-like plate similar to the above is disposed with one side in contact with the discharge valve, and a discharge lower 1 having a valve chamber 72 in which the check discharge valve freely moves is screwed onto the opposite side. Further, the through hole 24 protruding from the center is provided with an annular t11181, into which the "0" ring 8 is fitted, and the hollow body has a handle 25 on the cylindrical outer periphery. The cavity lid 1 is screwed into the cavity body 2 through a gasket 13 to form a working space. 3 is an empty bag molded from flexible polyethylene (other resin materials, rubber materials, etc. may also be used). The empty bag 3 is provided with an opening 31 screwed in at the top, and a bellows cylindrical peripheral edge with a suitably smaller diameter than the inner diameter of the empty body 2 is provided near the center so as to leave a flow path 100 in the working space of the empty body 2. and be able to expand and contract in the vertical direction. Further, an annular locking groove 34 is carved in the integrated bottom part, and the tips of four leg parts 32 provided intermittently on the outer peripheral edge thereof fit into the groove part 12 of the cavity Ml, The jamb 4 that prevents the empty bag from swinging laterally and protects the flow path 100 between it and the cavity lid 1 is a sliding member tightly screwed onto the opening 31 of the empty bag 3 via a packing 33. It is a bulkhead. The sliding partition wall has a step in the center and a threaded connection port 44, and two partition holes 42 are provided at the periphery facing the flow path 100 of the working space.
are arranged symmetrically and a check valve 41 is arranged, and a seal groove 45 is provided at the outer peripheral end, and a felt 43 (another member may be used).
The bulge 5, which is inscribed in the hollow body 2 in an airtight manner and freely slidable, has one end tightly screwed to the stepped portion of the connecting port 44 of the sliding bulkhead 4 through a packing 46. A hollow conducting shaft is connected to the empty bag 3, and the other end is connected to the empty body 2.
It passes through the "0 paring 8" fitted in the hollow body while being kept airtight and is allowed to slide freely, and protrudes outside of the hollow body, and a pusher 51 having a conduction hole 52 is fitted and fixed to the tip of the pusher 51. At the center of each inner surface of the sliding partition wall 4 and the bottom of the empty bag 3,
Convex portions 47, 35, respectively. It is a compression spring that is secured with a . Furthermore, IO is a filter molded to have a W-shaped cross section. The filter 10 has an upper outer peripheral edge connected to the locking groove 34 at the bottom of the empty bag 3, and an inlet protrudingly provided at the inner center of the filter 10 is connected to the suction section 11 inside the cavity lid 1 protrudingly provided.
They are removably fitted and locked onto the inner ends of each.

以上の構成になるから、押手５１を押圧すると空胴体２
の外にある導通シャフト５は空胴体２に配した“０″リ
ング８によって気密を保持され、該空胴体の作用空間に
摺動挿入し摺動隔壁４と共に伸縮自在な空袋３と配され
た圧縮スプリング３ａを圧縮し、該空袋内空気を導通シ
ャフト５から押手５１の導通孔５２を経て空胴体２の外
に放出しつつ、配された圧縮スプリングと共に縮小すム
この際該空袋底部に設けた４本の脚部３２が押圧に抗し
て流通路ｌＯＯを保護すると共に該空袋の横振れを防止
する。これに対して前記空胴体２の作用空間は前記空袋
３が縮小したのであるから大気圧よりも負圧になり、同
時に負圧に順じて遊動した該空胴体の逆止排出弁７は排
出部２１の弁座２３に当接し排出孔２２を閉じて該空胴
体の外気の流入を防止して作用空間の負圧を保ち、−力
負圧に順じて遊動した逆止吸引弁６は吸引部１１内に遊
動して吸引口６１を開き、負圧になった作用空間が大気
圧に戻るべく、気体、液体等と、混在するゴミなどの異
物をも吸引するのである。この際、押手５１を押圧する
力が直接空胴体２の作用空間を負正にするのであるから
、任意強制吸引もできる。With the above configuration, when the pusher 51 is pressed, the empty body 2
The conduction shaft 5 located outside is kept airtight by a "0" ring 8 arranged on the hollow body 2, and is slidably inserted into the working space of the hollow body, and is arranged with an expandable empty bag 3 together with a sliding bulkhead 4. The air inside the empty bag is discharged from the conduction shaft 5 to the outside of the empty body 2 through the conduction hole 52 of the pusher 51, and the empty bag is compressed together with the disposed compression spring. The four legs 32 provided at the bottom protect the flow path lOO against pressure and prevent the empty bag from swinging laterally. On the other hand, since the empty bag 3 has shrunk, the working space of the empty body 2 has a negative pressure than the atmospheric pressure, and at the same time, the check discharge valve 7 of the empty body, which has been floating in accordance with the negative pressure, The check suction valve 6 contacts the valve seat 23 of the discharge part 21 and closes the discharge hole 22 to prevent the inflow of outside air into the empty body to maintain the negative pressure in the working space, and moves freely according to the negative pressure. moves into the suction section 11 to open the suction port 61, and in order to return the working space, which has become negative pressure, to atmospheric pressure, it sucks out gas, liquid, etc., and foreign matter such as dust mixed therein. At this time, since the force of pressing the pusher 51 directly makes the working space of the empty body 2 negative or positive, arbitrary forced suction can also be performed.

次に前記押手５１の押圧を解除すると吸引口６１側に摺
動していた前記摺動隔壁４は前記空袋３が圧縮スプリン
グ３ａによって拡張すると共に前記空胴体２に気密を保
持しながら排出口側に摺動し吸引口側の作用空間を負圧
にする、そして負圧に順じて遊動した該摺動隔壁４の隔
壁弁４１は該摺動隔壁面に出接し、隔壁孔４２を閉じて
負圧を保ち、反対に逆止吸引弁６は吸引部ｌｌ内に遊動
して吸引口６１を開き、負圧になった作用空間が大気圧
に戻るべく気体、液体等と混在するゴミなどを吸引する
のである。Next, when the pressure of the pusher 51 is released, the sliding partition wall 4 which had been sliding toward the suction port 61 side expands the empty bag 3 by the compression spring 3a, and the empty bag 3 is expanded by the compression spring 3a, and the empty bag 2 is kept airtight at the discharge port. The partition valve 41 of the sliding partition 4 slides to the side to make the working space on the suction port side negative pressure, and moves in accordance with the negative pressure, comes into contact with the sliding partition surface and closes the partition hole 42. On the contrary, the non-return suction valve 6 moves freely into the suction part 11 to open the suction port 61, and the negative pressure in the working space is returned to atmospheric pressure to remove dust, etc. mixed with gas, liquid, etc. It attracts.

また、同時作用で反対側の排出口側の作用空間は大気圧
よりも正圧になり正圧に順じて弁室７２に遊動した該空
胴体の逆止排出弁７は排出孔２２を開き、吸引した気体
、液体等は大気圧に戻るべく排出ロア１がら空胴体２の
外に排出する。In addition, due to the simultaneous action, the pressure in the working space on the opposite side of the discharge port becomes more positive than atmospheric pressure, and the check discharge valve 7 of the empty body, which has moved into the valve chamber 72 in accordance with the positive pressure, opens the discharge hole 22. The sucked gas, liquid, etc. are discharged from the air body 2 through the discharge lower 1 in order to return to atmospheric pressure.

すなわち、押手５１の押圧を繰り返えす操作の往、復い
ずれの操作においても吸引することができるのである。In other words, suction can be performed in both forward and backward operations of repeatedly pressing the pusher 51.

また、吸引した気体、液体等に混在したゴミなどの異物
は断面Ｗ形状のフィルター１０によって分離され、Ｗ形
状の底部は分離したゴミなどの異物を捕捉し吸引部１１
への逆戻りを防止する。Further, foreign matter such as dust mixed in the sucked gas, liquid, etc. is separated by a filter 10 having a W-shaped cross section, and the W-shaped bottom traps the separated foreign matter such as dust.
prevent a relapse.

なを、導通シャフト５は作用空間に摺動挿入するのであ
るから、前記作用空間の負圧に影響し吸引能力に関係す
る。従って適宜小径（体積を少なく）に考慮する。Since the conduction shaft 5 is slidably inserted into the working space, it affects the negative pressure in the working space and is related to the suction capacity. Therefore, consider making the diameter smaller (reducing the volume) as appropriate.

また、前記逆止吸引弁６は理論上吸引作用には必要ない
のであるが、空胴体２内にある吸引した液体等の漏えい
を防止する。Further, although the check suction valve 6 is theoretically not necessary for the suction action, it prevents leakage of the suctioned liquid within the empty body 2.

次に、第２実施例を断面図で示す第４〜６図において説
明する。Next, a second embodiment will be explained with reference to FIGS. 4 to 6, which show cross-sectional views.

３０１は、摺動隔壁４０１を一体に成型した空袋である
。該空袋３０１はそのジャバラ部に縦方向間欠して流通
路１００を形成し、また底部には間欠して設けた４本の
脚部３２１の先端が空胴Ｍ１０１に当接し、押圧される
前記空袋に対して気体、液体等の流通路１００を保護す
る。301 is an empty bag in which a sliding partition wall 401 is integrally molded. The empty bag 301 forms a flow path 100 intermittently in the vertical direction in its bellows, and the tips of four legs 321 provided intermittently at the bottom abut against the cavity M101 and are pressed. To protect a flow path 100 for gas, liquid, etc. from empty bags.

さらに、その外筒縁に間欠して設けた顎部３１１は流通
路を阻害することなく空胴体に設けた段部２０２に当接
して係とし該空洞体底部を保持する。Furthermore, the jaws 311 provided intermittently on the edge of the outer cylinder abut and engage the stepped portions 202 provided on the hollow body to hold the bottom of the hollow body without obstructing the flow path.

さらに、５ａは導通シャフト５０１に嵌装した圧縮スプ
リングで、その一端は押手５１１に設けた凸部５１１ａ
に、他の一端は空胴体２０１に設けた凸部２０１ａにそ
れぞれ嵌合係止し、押圧されて摺動した該摺動隔壁４０
１の復帰を促す。Furthermore, 5a is a compression spring fitted to the conduction shaft 501, and one end thereof is a convex portion 511a provided on the pusher 511.
The other end of the sliding bulkhead 40 is fitted into and locked with a convex portion 201a provided on the empty body 201, and is pressed and slid.
Encourage the return of No. 1.

〔発明の効果〕〔Effect of the invention〕

従来の注射器のようなシリンダーピストン形式の吸引器
においては、ピストン運動であるピストンの往復操作の
往、復いずれが一方の操作においては吸引作用をせず吸
引できなかったのであるが本発明によれば導通シャフト
を同様操作することによって往、復いずれの操作におい
ても吸引することができる、また、押手を押圧する「往
」操作においては任意強制吸引もでき従来にない「吹き
飛ばす感覚」で吸引することができる０等の効果がある
。In conventional cylinder-piston type aspirators such as syringes, the piston movement, which is the reciprocating operation of the piston, does not produce suction in one operation and cannot be aspirated. By operating the conduction shaft in the same way, suction can be performed in both forward and backward operations. Also, in the "forward" operation by pressing the pusher, arbitrary forced suction can be performed, allowing suction with an unprecedented "blowing sensation". There is an effect such as 0 that can be done.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の第１実施例の縦断面図、第２図は第１
図の■−■線断面図、第３図は第１図のｍ−ｍ線断面図
、第４図は第２実施例の縦断面図、第５図は第４図のｖ
−ｖ線断面図、第６図は第４図のｖｔ−ｖｔ線断面図で
ある。 １．１０１は空胴蓋、２，２０１は空胴体、３．３０１
は空袋、４，４０１は摺動隔壁、５，５０１は導通シャ
フト、６は逆止吸引弁、７は逆止排出弁、８は“０”リ
ング、１０はフィルター。FIG. 1 is a vertical cross-sectional view of the first embodiment of the present invention, and FIG.
3 is a sectional view taken along the line m-m in FIG. 1, FIG. 4 is a vertical sectional view of the second embodiment, and FIG.
6 is a sectional view taken along the line vt-vt of FIG. 4. 1.101 is the cavity lid, 2,201 is the cavity body, 3.301
is an empty bag, 4,401 is a sliding partition, 5,501 is a conduction shaft, 6 is a check suction valve, 7 is a check discharge valve, 8 is a "0" ring, and 10 is a filter.

Claims (1)

【特許請求の範囲】[Claims] 逆止弁を配した空胴体が形成する作用空間に伸縮自在な
空袋を配し、該空袋が一体にした摺動隔壁は逆止弁を配
し、その外周縁を前記空胴体に内接し、該摺動隔壁に連
結した導通シャフトは、前記空胴体が気密を保持し摺動
自由にして該空胴体の外に突出してなる、往復吸引器。An expandable and retractable empty bag is arranged in the working space formed by the empty body in which the check valve is arranged, and the sliding bulkhead integrated with the empty bag is provided with the check valve, and its outer periphery is inserted into the empty body. A reciprocating suction device, wherein a conductive shaft that is in contact with and connected to the sliding partition protrudes outside the hollow body while keeping the hollow body airtight and freely sliding.