JPH0331445U - - Google Patents
Info
- Publication number
- JPH0331445U JPH0331445U JP9314189U JP9314189U JPH0331445U JP H0331445 U JPH0331445 U JP H0331445U JP 9314189 U JP9314189 U JP 9314189U JP 9314189 U JP9314189 U JP 9314189U JP H0331445 U JPH0331445 U JP H0331445U
- Authority
- JP
- Japan
- Prior art keywords
- feed
- gear
- piston
- cylinder
- pair
- 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
- 238000001802 infusion Methods 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- External Artificial Organs (AREA)
Description
第１図は本考案の輸液装置の具体的実施例を示
す断面図、第２図は先行技術の輸液装置の断面図
、第３図は第２図におけるＡ−Ａ′断面図、第４
図乃至第５図は第２図の説明に供する図である。
２，３，１００Ａ１，１００Ｂ１…ポンプ室、
４，５，１１０Ａ，１１０Ｂ…ピストン、１６…
駆動部（可逆モータ）、１００Ａ，１００Ｂ…シ
リンダ、１２０Ａ，１２０Ｂ…ピストンカバー、
１３０Ａ…第１送り歯車、１３０Ｂ…第２送り歯
車。
FIG. 1 is a sectional view showing a specific embodiment of the infusion device of the present invention, FIG. 2 is a sectional view of a prior art infusion device, FIG. 3 is a sectional view taken along line A-A' in FIG.
5 to 5 are diagrams for explaining FIG. 2. 2,3,100A 1,100B 1 ... Pump chamber,
4, 5, 110A, 110B...piston, 16...
Drive part (reversible motor), 100A, 100B...Cylinder, 120A, 120B...Piston cover,
130A...first feed gear, 130B...second feed gear.
Claims (1)
ポンプ室に夫々一対のピストンを挿入した上でこ
れ等一対のピストンを１台の駆動源で逆相的に往
復駆動させて液体の吸入・吐出を行う輸液装置に
おいて、 内側に前記ピストンが挿入されるポンプ室を有
しその外側に送り捩子が切られたシリンダと、 外側に一定の溝が設けられ、内側先端部分に前
記シリンダの送り捩子に螺合する送り捩子が設け
られ、後端部において前記ピストンと接合する構
造のピストンカバーと、 外側に歯車が切られ内側の一部に前記ピストン
カバーの溝にスライド可能に係止するキーが組付
けられて、前記外側の歯車の回転に伴つて前記ピ
ストンカバーを前記キーに対してスライドしなが
ら回転スライドさせて螺合する前記相互の送り捩
子により前記ピストンを前記シリンダ室内にスラ
イドさせる送り歯車と、 を夫々一対具備し、前記駆動源の回転軸に組付け
られる歯車に前記送り歯車の第１を噛合せ、該第
１の送り歯車に前記送り歯車の第２を噛合わせ、
前記駆動源の回転に伴つて前記第１の送り歯車と
前記第２の送り歯車とが互いに逆に回転し、これ
等第１及び第２の送り歯車の回転で前記キーを介
して間接接続される前記ピストンを互いに逆相的
に往復駆動させることを特徴とする輸液装置。[Claims for Utility Model Registration] A pair of pump chambers are provided in parallel, a pair of pistons are inserted into each of the pair of pump chambers, and the pair of pistons are driven in reverse phase by a single drive source. An infusion device that sucks and discharges liquid by reciprocating the cylinder, which has a pump chamber inside which the piston is inserted, a cylinder with a feed screw cut outside the cylinder, and a certain groove on the outside. A piston cover having a structure in which a feed screw screwed into the feed screw of the cylinder is provided at an inner tip portion and is connected to the piston at a rear end portion, and a gear is cut on the outside and the piston cover is provided on a part of the inside. A key slidably locked in the groove is assembled, and as the outer gear rotates, the piston cover slides relative to the key and rotates and slides to be screwed together. a pair of feed gears for sliding the piston into the cylinder chamber, a first of the feed gears meshing with a gear assembled to the rotating shaft of the drive source, and a first feed gear of the first feed gear that slides the piston into the cylinder chamber; Engage the second feed gear,
As the drive source rotates, the first feed gear and the second feed gear rotate in opposite directions, and the rotation of the first and second feed gears causes them to be indirectly connected via the key. An infusion device characterized in that the pistons are reciprocated in opposite phases to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9314189U JPH0331445U (en) | 1989-08-07 | 1989-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9314189U JPH0331445U (en) | 1989-08-07 | 1989-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0331445U true JPH0331445U (en) | 1991-03-27 |
Family
ID=31642539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9314189U Pending JPH0331445U (en) | 1989-08-07 | 1989-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0470206U (en) * | 1990-06-06 | 1992-06-22 |
-
1989
- 1989-08-07 JP JP9314189U patent/JPH0331445U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0470206U (en) * | 1990-06-06 | 1992-06-22 |
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