JPH07257691A - Liquid storage part for liquid feeding device - Google Patents
Liquid storage part for liquid feeding deviceInfo
- Publication number
- JPH07257691A JPH07257691A JP4602694A JP4602694A JPH07257691A JP H07257691 A JPH07257691 A JP H07257691A JP 4602694 A JP4602694 A JP 4602694A JP 4602694 A JP4602694 A JP 4602694A JP H07257691 A JPH07257691 A JP H07257691A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- internal pressure
- pump
- main body
- discharge
- 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
Landscapes
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
- Devices For Dispensing Beverages (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はコーヒー，ジュース，紅
茶，麺類等に使用する液体食品及び液体薬品，薬液等の
液体を一定量ずつ吐出する給液装置に関し、特にその収
液部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply device for discharging liquid foods and liquid chemicals used for coffee, juice, tea, noodles and the like, liquids such as liquid medicines in fixed amounts, and more particularly to a liquid collecting portion thereof.
【０００２】[0002]
【従来の技術】この種の給液装置においては、装置の汎
用化や衛生上の観点から、給液の通路を一体化し、交換
可能な構成とする技術が提案されている。本出願人も、
先に、図３に示すような圧電体ポンプを利用した給液装
置を提案した（特開平５−３１０２９７号公報）。この
給液装置は給液の通路を一体化した交換可能な収液部Ａ
と、この収液部Ａを支持し、収液部Ａが有するポンプ本
体２を駆動する固定部Ｂとから構成されている。収液部
Ａは、液体の充填される可撓性の容器１と、この容器１
に接続された送液管１ａと、吐出チューブ９と、送液管
１ａと吐出チューブ９を接続するポンプ本体２とからな
る。図４は、収液部Ａの縦断面図である。ポンプ本体２
は、送液管１ａに接続する吸入部３０と、吐出チューブ
９に接続する吐出部４０と、吸入部３０と吐出部４０と
を接続するポンプ室５を有する。吸入部３０，吐出部４
０およびポンプ室５はそれぞれ柔軟性を有する壁面部材
３ａ，４ａおよび２ａで夫々封止されている。また、各
室を隔てる隔壁１５のうち、ポンプ室５と吸入部３０間
およびポンプ室５と吐出部４０間には液体の通る細孔が
複数個設けてある。吸入側逆止弁３はポンプ室５から吸
入部３０への、また吐出側逆止弁４は吐出部４０からポ
ンプ室５への液体の逆流を防止する。2. Description of the Related Art In this type of liquid supply device, from the viewpoint of generalization of the device and hygiene, a technique has been proposed in which the liquid supply passages are integrated to be replaceable. The applicant also
Previously, there was proposed a liquid supply device using a piezoelectric pump as shown in FIG. 3 (Japanese Patent Laid-Open No. 5-310297). This liquid supply device has a replaceable liquid collecting section A with an integrated liquid supply passage.
And a fixed portion B that supports the liquid collecting portion A and drives the pump body 2 of the liquid collecting portion A. The liquid collecting section A includes a flexible container 1 filled with a liquid and the container 1
And a discharge tube 9, and a pump main body 2 connecting the liquid supply tube 1a and the discharge tube 9. FIG. 4 is a vertical cross-sectional view of the liquid collecting section A. Pump body 2
Has a suction part 30 connected to the liquid supply pipe 1 a, a discharge part 40 connected to the discharge tube 9, and a pump chamber 5 connecting the suction part 30 and the discharge part 40. Inhalation part 30, discharge part 4
0 and the pump chamber 5 are sealed by flexible wall members 3a, 4a and 2a, respectively. Further, in the partition wall 15 that separates each chamber, a plurality of pores through which liquid passes are provided between the pump chamber 5 and the suction portion 30 and between the pump chamber 5 and the discharge portion 40. The suction side check valve 3 prevents backflow of liquid from the pump chamber 5 to the suction portion 30, and the discharge side check valve 4 prevents backflow of liquid from the discharge portion 40 to the pump chamber 5.
【０００３】液体の吐出は次のように行う。まず、ポン
プ本体２を固定部Ｂのポンプ駆動部６にはめ込み、蓋体
８をヒンジ１０ｃ，１０ｄおよびロック１０ａ，１０ｂ
で固定して、ポンプ本体２のダイヤフラムである壁面部
材２ａを駆動体７に密着させる。次にヒートシールされ
ている吐出チューブ９の先端を切る。駆動体７は圧電素
子などを用いたアクチュエータであり、図示しない駆動
源により動作させる。駆動体７の動作により壁面部材２
ａが振動して、ポンプ室５が膨張，収縮して液体が吐出
する。このような給液装置に用いる収液部Ａは、通常、
容器に液体を充填した状態で輸送・保管される。この
際、収液部Ａに振動や衝撃が加わると、ポンプ本体２に
液体が圧送される。The liquid is discharged as follows. First, the pump body 2 is fitted into the pump drive portion 6 of the fixed portion B, and the lid 8 is attached to the hinges 10c and 10d and the locks 10a and 10b.
Then, the wall surface member 2a, which is the diaphragm of the pump body 2, is brought into close contact with the driving body 7. Next, the tip of the heat-sealed discharge tube 9 is cut. The driving body 7 is an actuator using a piezoelectric element or the like, and is operated by a driving source (not shown). The wall member 2 is moved by the operation of the driving body 7.
a vibrates, the pump chamber 5 expands and contracts, and the liquid is discharged. The liquid collecting part A used in such a liquid supply device is usually
Transported and stored in a container filled with liquid. At this time, when vibration or impact is applied to the liquid collecting portion A, the liquid is pumped to the pump body 2.
【０００４】[0004]
【発明が解決しようとする課題】しかし、ポンプ本体２
には逆止弁３，４があるため、圧送された液体はポンプ
本体２から容器１へは戻ることができない。この結果、
ポンプ本体２の内圧が異常に高まり、図５に示すように
壁面部材２ａ，３ａおよび４ａが張り出した状態になっ
てしまう。この状態でポンプ駆動部に装着しようとする
と、さらにポンプ本体２の壁面部材２ａ，３ａ，４ａに
負荷がかかり、破断の恐れがある。また、装着できて
も、吐出チューブ９の先端を開放した際に液体が勢いよ
く吐出し、飛散して周囲を汚染するという課題があっ
た。However, the pump main body 2
Since there are check valves 3 and 4, the pumped liquid cannot return from the pump body 2 to the container 1. As a result,
The internal pressure of the pump main body 2 is abnormally increased, and the wall surface members 2a, 3a, and 4a are in a protruding state as shown in FIG. If the pump drive unit is mounted in this state, a load is further applied to the wall surface members 2a, 3a, 4a of the pump body 2, and there is a risk of breakage. Further, even if it can be mounted, there is a problem that the liquid is vigorously ejected when the tip of the ejection tube 9 is opened and scattered to contaminate the surroundings.
【０００５】[0005]
【課題を解決するための手段】本発明は上記の課題に鑑
みなされたものであって、給液の満たされた容器１と、
この容器１に一端を接続された送液管１ａと、この送液
管１ａの他端に一端を接続されたポンプ本体２０と、こ
のポンプ本体２０の他端に接続された吐出チューブ９と
から構成される給液装置の収液部Ｃであって、前記ポン
プ本体２０が、前記送液管１ａに接続された吸入部３０
と、前記吐出チューブ９に接続され、前記吸入部３０と
隔壁１５で隔てられた吐出部４０と、前記吸入部３０と
前記吐出部４０とを接続するポンプ室５と、前記吸入部
３０と前記ポンプ室５との間に設けられた吸入側逆止弁
３と、前記吐出部４０と前記ポンプ室５との間に設けら
れた吐出側逆止弁４と、前記隔壁１５に設けられ、前記
吸入部３０と前記吐出部４０を連通する細い内圧調整孔
２１を有することを特徴とする給液装置の収液部であ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems and includes a container 1 filled with a liquid supply,
From the liquid feed pipe 1a having one end connected to the container 1, the pump main body 20 having one end connected to the other end of the liquid feed pipe 1a, and the discharge tube 9 connected to the other end of the pump main body 20. It is the liquid collection part C of the liquid supply apparatus comprised, Comprising: The said pump main body 20 is the suction part 30 connected to the said liquid supply pipe 1a.
A discharge section 40 connected to the discharge tube 9 and separated from the suction section 30 by a partition wall 15, a pump chamber 5 connecting the suction section 30 and the discharge section 40, the suction section 30 and the The suction side check valve 3 provided between the pump chamber 5 and the discharge side check valve 4 provided between the discharge part 40 and the pump chamber 5, and the partition wall 15 The liquid collecting part of the liquid supply device is characterized by having a thin internal pressure adjusting hole 21 that communicates the suction part 30 and the discharge part 40.
【０００６】[0006]
【作用】内圧調整孔２１を設けることにより、輸送時，
保管時等に加わる衝撃等の外力により、液体がポンプ本
体２０に圧送されても、吐出部４０から吸入部３０に液
体が移動できるため、ポンプ本体２の内圧は一定に保た
れ、壁面部材２ａ，３ａ，４ａが異常に膨らんだり、吐
出チューブ９の先端開放時に液体が飛散することはな
い。[Operation] By providing the internal pressure adjusting hole 21, during transportation,
Even if the liquid is pumped to the pump body 20 by an external force such as an impact applied during storage, the liquid can be moved from the discharge part 40 to the suction part 30, so that the internal pressure of the pump body 2 is kept constant and the wall surface member 2a , 3a, 4a do not swell abnormally, and the liquid does not scatter when the tip of the discharge tube 9 is opened.
【０００７】[0007]
【実施例】次に、図面を参照して本発明を詳細に説明す
る。図１および図２は、本発明による収液部Ｃの一実施
例を示す断面図および側面図である。各図とも図４およ
び図５と同じ要素には同じ符号を付した。本発明による
収液部Ｃが従来の収液部Ａと異なる点は、ポンプ本体２
０の隔壁１５に、吸入部３０と吐出部４０とを連通する
内圧調整孔２１を設けたことである。この内圧調整孔２
１を設けることにより、輸送時、保管時等に加わる衝撃
等の外力により、液体がポンプ本体２０に圧送されて
も、吐出部４０から吸入部３０に液体が移動できるた
め、ポンプ本体２０の内圧は一定に保たれ、壁面部材２
ａ，３ａ，４ａが異常に膨らんだり、吐出チューブ９の
先端開放時に液体が飛散することはない。The present invention will be described in detail with reference to the drawings. 1 and 2 are a sectional view and a side view showing an embodiment of a liquid collecting section C according to the present invention. In each figure, the same elements as those in FIGS. 4 and 5 are designated by the same reference numerals. The liquid collecting part C according to the present invention is different from the conventional liquid collecting part A in that the pump main body 2
The partition wall 15 of No. 0 is provided with the internal pressure adjusting hole 21 that connects the suction portion 30 and the discharge portion 40. This internal pressure adjustment hole 2
By providing 1, even if the liquid is pumped to the pump body 20 by an external force such as an impact applied during transportation or storage, the liquid can be moved from the discharge part 40 to the suction part 30, so that the internal pressure of the pump body 20 is increased. Is kept constant, the wall member 2
The liquids a, 3a and 4a do not swell abnormally and the liquid does not scatter when the tip of the discharge tube 9 is opened.
【０００８】この内圧調整孔２１の大きさは、あまり小
さいと十分な効果が得られず、また大き過ぎるとポンプ
本来の性能（吐出量，吐出圧など）を悪化させるため、
液体の粘度により適宜定める。たとえば水や濃縮コーヒ
ー液などの場合は、直径０．８〜１mm程度で十分効果が
得られ、またポンプ性能への影響も認められなかった。
内圧調整孔２１の断面形状や設置場所については、孔を
設ける方法（ポンプ本体と同時に成形する、成形後ドリ
ル等を用いる等）により、任意に定めればよい。また、
液体が固化しやすい場合や比較的大きな粒子を含むよう
な場合は、内圧調整孔２１を複数個設けることによっ
て、１つの調整孔が閉塞しても他の調整孔により内圧の
異常上昇を防ぐことができる。If the size of the internal pressure adjusting hole 21 is too small, a sufficient effect cannot be obtained, and if it is too large, the original performance of the pump (discharging amount, discharging pressure, etc.) is deteriorated.
Appropriately determined according to the viscosity of the liquid. For example, in the case of water or concentrated coffee liquid, a sufficient effect was obtained with a diameter of about 0.8 to 1 mm, and no influence on the pump performance was observed.
The cross-sectional shape and installation location of the internal pressure adjusting hole 21 may be arbitrarily determined by the method of forming the hole (molding at the same time as the pump body, using a drill after molding, etc.). Also,
When the liquid easily solidifies or contains relatively large particles, a plurality of internal pressure adjusting holes 21 are provided to prevent abnormal increase of the internal pressure by the other adjusting holes even if one adjusting hole is closed. You can
【０００９】[0009]
【発明の効果】本発明では、ポンプ本体２０の隔壁１５
に、吸入部３０と吐出部４０とを連通する内圧調整孔２
１を設けたことにより、輸送時、保管時等に加わる衝撃
等の外力により、液体がポンプ本体２０に圧送されて
も、吐出部４０から吸入部３０に液体が移動できるた
め、ポンプ本体２０の内圧は一定に保たれ、壁面部材２
ａ，３ａ，４ａが異常に膨らんだり、吐出チューブ９の
先端開放時に液体が飛散することを防止できる。According to the present invention, the partition wall 15 of the pump body 20 is provided.
The internal pressure adjusting hole 2 that connects the suction part 30 and the discharge part 40 to each other
By providing 1, the liquid can be moved from the discharge part 40 to the suction part 30 even if the liquid is pressure-fed to the pump body 20 by an external force such as an impact applied at the time of transportation or storage. The internal pressure is kept constant and the wall member 2
It is possible to prevent the a, 3a, and 4a from swelling abnormally and the liquid from scattering when the tip of the discharge tube 9 is opened.
【図１】本発明の１実施例の自動販売機の給液器の取り
出し時の縦断面図である。FIG. 1 is a vertical cross-sectional view of a liquid dispenser of an automatic vending machine according to an embodiment of the present invention when it is taken out.
【図２】給液器のポンプ本体２０の側面図である。FIG. 2 is a side view of a pump body 20 of the liquid supply device.
【図３】従来の自動販売機の要部の分解斜視図である。FIG. 3 is an exploded perspective view of a main part of a conventional vending machine.
【図４】そのポンプ本体２０の縦断面図である。FIG. 4 is a vertical sectional view of the pump body 20.
【図５】そのポンプ本体２０の張り出した状態を示す縦
断面図である。FIG. 5 is a vertical sectional view showing a state where the pump body 20 is projected.
Ｃ 収液部 １ 容器 １ａ 送液管 ３ 吸入側逆止弁 ４ 吐出側逆止弁 ５ ポンプ室 ９ 吐出チューブ １５ 隔壁 ２０ ポンプ本体 ２１ 内圧調整孔 ３０ 吸入部 ４０ 吐出部 C Liquid collecting part 1 Container 1a Liquid feeding pipe 3 Suction side check valve 4 Discharge side check valve 5 Pump chamber 9 Discharge tube 15 Partition wall 20 Pump body 21 Internal pressure adjusting hole 30 Suction part 40 Discharge part
Claims (1)
端を接続された送液管と、この送液管の他端に一端を接
続されたポンプ本体と、このポンプ本体の他端に接続さ
れた吐出チューブとから構成される給液装置の収液部で
あって、前記ポンプ本体が、前記送液管に接続された吸
入部と、前記吐出チューブに接続され、前記吸入部と隔
壁で隔てられた吐出部と、前記吸入部と前記吐出部とを
接続するポンプ室と、前記吸入部と前記ポンプ室との間
に設けられた吸入側逆止弁と、前記吐出部と前記ポンプ
室との間に設けられた吐出側逆止弁と、前記隔壁に設け
られ、前記吸入部と前記吐出部を連通する細い内圧調整
孔を有することを特徴とする給液装置の収液部。1. A container filled with a liquid supply, a liquid feed pipe having one end connected to the container, a pump main body having one end connected to the other end of the liquid feed pipe, and the other end of the pump main body. A liquid collecting part of a liquid supply device comprising a discharge tube connected to the pump body, wherein the pump body is connected to the liquid feed pipe, and a suction part is connected to the discharge tube. A discharge part separated by a partition, a pump chamber connecting the suction part and the discharge part, a suction side check valve provided between the suction part and the pump chamber, the discharge part and the A discharge side check valve provided between the pump chamber and a discharge side check valve, and a thin internal pressure adjusting hole provided in the partition wall for communicating the suction part and the discharge part with each other. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04602694A JP3467306B2 (en) | 1994-03-16 | 1994-03-16 | Liquid collection part of liquid supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04602694A JP3467306B2 (en) | 1994-03-16 | 1994-03-16 | Liquid collection part of liquid supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07257691A true JPH07257691A (en) | 1995-10-09 |
| JP3467306B2 JP3467306B2 (en) | 2003-11-17 |
Family
ID=12735542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04602694A Expired - Lifetime JP3467306B2 (en) | 1994-03-16 | 1994-03-16 | Liquid collection part of liquid supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3467306B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162902A (en) * | 2018-09-20 | 2019-01-08 | 长春工业大学 | A kind of floating type I-shaped valve piezoelectric pump |
-
1994
- 1994-03-16 JP JP04602694A patent/JP3467306B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162902A (en) * | 2018-09-20 | 2019-01-08 | 长春工业大学 | A kind of floating type I-shaped valve piezoelectric pump |
| CN109162902B (en) * | 2018-09-20 | 2023-12-15 | 长春工业大学 | Floating type I-shaped valve piezoelectric pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3467306B2 (en) | 2003-11-17 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| EXPY | Cancellation because of completion of term |