JP2001082349A - Reciprocating pump - Google Patents

Reciprocating pump

Info

Publication number
JP2001082349A
JP2001082349A JP25966099A JP25966099A JP2001082349A JP 2001082349 A JP2001082349 A JP 2001082349A JP 25966099 A JP25966099 A JP 25966099A JP 25966099 A JP25966099 A JP 25966099A JP 2001082349 A JP2001082349 A JP 2001082349A
Authority
JP
Japan
Prior art keywords
orifice
pump
valve chamber
air
completion
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
Application number
JP25966099A
Other languages
Japanese (ja)
Inventor
Kazuhisa Mori
和寿 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kioritz Corp
Original Assignee
Kioritz Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kioritz Corp filed Critical Kioritz Corp
Priority to JP25966099A priority Critical patent/JP2001082349A/en
Publication of JP2001082349A publication Critical patent/JP2001082349A/en
Pending legal-status Critical Current

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  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of an air bleeding device, reduce a cost, and facilitate the confirmation of completion of air bleeding by providing an orifice opening to the outside at an appropriate position of a delivery valve chamber to allow a pump to function as an air bleeder at the beginning of driving of the pump and allow to discharge minute amount of excess water continuously after the completion of air bleeding. SOLUTION: A delivery valve chamber 5 part forming a reciprocating pump 3 sucks washing water from a suction valve 8 part when a piston 7 moves backward and discharges washing water from a delivery valve 9 part when the piston 7 moves forward. An orifice 10 opening to the outside is provided at an appropriate position of the delivery valve chamber 5. Also, a transparent line 12 such as vinyl hose is connected to the outer end of an orifice main body 11, and lead to a tank. The orifice 10 functions as an air bleeder at the beginning of driving of the pump and, when the air bleeding is completed and washing water is filled up into the delivery valve chamber 5, the washing water is discharged gradually from the orifice 10. Thus, a trouble with the pump 3 due to no-load operation can be prevented by the confirmation of completion of air bleeding.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、洗浄機、動力噴霧
機等に使用される往復動ポンプに関し、特に、空気抜き
装置の構造単純化を図り、安価に提供できる往復動ポン
プに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating pump used for a washer, a power sprayer, and the like, and more particularly to a reciprocating pump that can be provided at a low cost by simplifying the structure of an air venting device.

【0002】[0002]

【従来の技術】洗浄機、動力噴霧機等に使用されている
往復動ポンプは、駆動初期に吐出弁室内の迅速な空気抜
きが必要であるとともに、運転中に吸水口等から空気が
吸入されると、吐出弁室内に空気が溜まり、吸水性能が
いちじるしく低下し、必要とする液圧の送液が行われな
くなる。
2. Description of the Related Art A reciprocating pump used in a washing machine, a power spraying machine or the like needs to quickly bleed air from a discharge valve chamber at an early stage of driving, and sucks air from a water suction port or the like during operation. Then, air accumulates in the discharge valve chamber, the water absorption performance is significantly reduced, and the required liquid pressure cannot be supplied.

【0003】したがって、前記のごとき往復動ポンプの
吸水性能を高めるためには、吐出弁室内の空気をできる
だけ早くポンプ外に抜くことが必要であり、従来各種の
自動空気抜き装置が提案されている(実公昭49−38
572号、特開平5−79573号公報、実用新案登録
公報第2589517号等参照)。
Therefore, in order to enhance the water absorption performance of the reciprocating pump as described above, it is necessary to release the air in the discharge valve chamber to the outside of the pump as soon as possible. Conventionally, various automatic air release devices have been proposed ( 49-38
572, JP-A-5-79573, Utility Model Registration Publication No. 2589517, etc.).

【0004】前記従来提供されている自動空気抜き装置
は、水圧及びスプリング等により作動する開閉弁で構成
され、弁本体、スプリング及びそれらの保持装置を必要
とし、コストアップを免れないとともに、製造に手数を
有するものであった。
The above-mentioned conventional automatic air bleeding device is constituted by an on-off valve operated by water pressure, a spring, and the like, requires a valve body, a spring, and a device for holding the valve body. It had the following.

【0005】その他、別に設けられている調圧弁を手動
レバーで一時的に強制開放して空気抜きを行うことも行
われている。
[0005] In addition, air is vented by temporarily forcibly opening a separately provided pressure regulating valve with a manual lever.

【0006】[0006]

【発明が解決しようとする課題】本発明は、前記事情に
鑑み、部品点数を削減し、空気抜き装置の構造単純化を
図り、コストダウンが可能であるとともに、空気抜き完
了の確認の容易化を図った往復動ポンプを提供すること
を目的とする。
SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and has been made to reduce the number of parts, simplify the structure of an air vent device, reduce costs, and facilitate confirmation of completion of air vent. It is an object of the present invention to provide a reciprocating pump.

【0007】[0007]

【課題を解決するための手段】前記目的を達成するた
め、本発明の往復動ポンプは、請求項1に記載のごと
く、吐出弁室の適位置に外部に開口するオリフィスを設
けたことを特徴とする。
In order to achieve the above object, a reciprocating pump according to the present invention is characterized in that an orifice which opens to the outside at an appropriate position in the discharge valve chamber is provided. And

【0008】この請求項1によれば、前記オリフィスが
ポンプ駆動初期には空気抜きとして機能し、空気抜き完
了後は微量の余水を排出し続ける。
According to the first aspect, the orifice functions as an air vent at the initial stage of driving of the pump, and after the air vent is completed, a small amount of residual water is continuously discharged.

【0009】前記のごとく、空気抜き完了後に微量の余
水を排出し続けることは、ポンプの吸水性能に影響を与
えるとも考えられる。しかしながら、この種ポンプにお
いて、あらかじめ調圧弁の調節により、全吸水量の10
〜20%を余水としタンク等に戻すことが一般的に行わ
れており、前記オリフィスの形成が、必要とされる吸水
性能に重大な影響を与えることはない。
As described above, it is considered that continuing to discharge a small amount of surplus water after the completion of air release may affect the water absorption performance of the pump. However, in this type of pump, the total water absorption is set to 10
It is common practice to return 2020% as surplus water to a tank or the like, and the formation of the orifice does not significantly affect the required water absorption performance.

【0010】また、オリフィスを外部に開口させること
は、空気抜き完了の確認の容易化を図るためである。す
なわち、空気抜き完了後には前記オリフィスから余水が
排出し始めることを外部において確認可能にするためで
ある。
The purpose of opening the orifice to the outside is to make it easier to confirm the completion of air release. That is, it is possible to externally confirm that the residual water starts to be discharged from the orifice after the completion of the air release.

【0011】前記オリフィスを設けた場合には、該オリ
フィスから排出された余水は、配管を通して通常はタン
ク等に戻されるが、その際に使用する配管として透明配
管を選択し、該透明配管を機体外部、あるいは該機体が
カバーを有する場合には該カバーの外部から容易に見る
ことができるように配置しておけば、前記透明配管中に
排出された前記余水を見て、前記吐出弁室内の空気抜き
完了を容易に確認できる。なお、その詳細は後述の請求
項3の説明において述べる。
When the orifice is provided, the residual water discharged from the orifice is usually returned to a tank or the like through a pipe, but a transparent pipe is selected as a pipe to be used at that time, and the transparent pipe is used. If it is arranged so that it can be easily seen from the outside of the body or the outside of the cover when the body has a cover, the spill water discharged into the transparent pipe can be seen and the discharge valve can be seen. Completion of indoor air release can be easily confirmed. The details will be described later in the description of claim 3.

【0012】請求項2に示す実施の一形態は、前記オリ
フィスを前記吐出弁室の上部に開口させ、前記オリフィ
ス部に吸入液体により浮上させられて前記オリフィスを
閉塞する弁を設けたものである。なお、ここで吸入液体
により浮上させられる弁とは、吸入液体より比重がきわ
めて軽い材料よりなる弁を意味する。
In one embodiment of the present invention, the orifice is opened at the upper part of the discharge valve chamber, and the orifice portion is provided with a valve which is floated by suction liquid to close the orifice. . Here, the valve floated by the suction liquid means a valve made of a material whose specific gravity is extremely lighter than that of the suction liquid.

【0013】この請求項2の実施の一形態によれば、前
記請求項1と異なり、空気抜き完了後に前記オリフィス
から吸入液体(余水)の排出が継続させられることがな
い。すなわち、前記吸入液体より比重の軽い前記弁は、
常時はその自重により前記オリフィス部の下方に位置さ
せられ、ポンプ駆動初期には排出空気により適宜持ち上
げられる等して、前記オリフィスとの間に生じた間隙か
ら空気抜きが行われる。
According to the second embodiment, unlike the first embodiment, the discharge of the suction liquid (spill water) from the orifice after the completion of the air release is not continued. That is, the valve having a specific gravity lower than that of the suction liquid is
The orifice is normally positioned below the orifice portion by its own weight, and at the initial stage of driving the pump, is appropriately lifted by exhaust air or the like, so that air is removed from a gap formed between the orifice and the orifice.

【0014】その後、前記吐出弁室内に液体が吸入され
ると、該吸入液体により前記弁が徐々に浮上させられ、
同時に空気抜きが行われ、最終的に前記弁が前記オリフ
ィスを閉塞して空気抜きが完了し、閉塞状態が吸入液体
により維持される。したがって、前記請求項1のごと
く、空気抜き完了後に前記オリフィスから余水の排出が
継続させられることがない。
Thereafter, when liquid is sucked into the discharge valve chamber, the valve is gradually floated by the sucked liquid,
Simultaneously, the air is vented, and finally the valve closes the orifice to complete the air venting, and the closed state is maintained by the suction liquid. Therefore, the drainage of the residual water from the orifice is not continued after the completion of the air release.

【0015】請求項3の実施の一形態は、前記請求項1
または2における前記オリフィスの外部に透明配管を連
結したものである。なお、この透明配管は、機体外部、
あるいは該機体がカバーで覆われている場合には、該カ
バーの外部から容易に見ることができるように配置され
る。
[0015] An embodiment of the third aspect is the first aspect.
Or, a transparent pipe is connected to the outside of the orifice in 2. In addition, this transparent piping is
Alternatively, when the body is covered with a cover, the body is arranged so that it can be easily seen from the outside of the cover.

【0016】この請求項3の実施の一形態によれば、前
記請求項1の場合には、前記透明配管内に余水が流れ始
めたことを見て空気抜き完了を確認でき、前記請求項2
の場合には、前記弁による前記オリフィスの閉塞までの
間に漏れる少量の吸入液体を見て、空気抜き完了を確認
することができる。
According to the third embodiment of the present invention, in the case of the first embodiment, the completion of the air release can be confirmed by checking that the sewage has started flowing into the transparent pipe.
In this case, the completion of the air release can be confirmed by watching the small amount of suction liquid leaking until the orifice is closed by the valve.

【0017】[0017]

【発明の実施の形態】以下に、本発明の実施の形態を図
面に基づいて説明する。図1は本発明の往復動ポンプを
内蔵した洗浄機の一例を示す側面図、図2は同洗浄機の
正面図、図3は本発明の往復動ポンプを構成する吐出弁
室の概略縦断面図、図4は他の実施の一形態を示す本発
明の往復動ポンプを構成する吐出弁室の縦断面図であ
る。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an example of a washing machine incorporating a reciprocating pump of the present invention, FIG. 2 is a front view of the washing machine, and FIG. 3 is a schematic longitudinal sectional view of a discharge valve chamber constituting the reciprocating pump of the present invention. FIG. 4 is a longitudinal sectional view of a discharge valve chamber constituting a reciprocating pump of the present invention showing another embodiment.

【0018】図1及び図2に示す洗浄機は、全体がカバ
ー20で覆われており、詳細は図示しないが、内部の下
部にタンク21が設けられ、適位置に水道からの給水配
管1が接続され、さらにタンク内にはフロートを利用し
た給水装置が設けられ、洗浄作業中も前記タンク21内
の水面Lが一定に保持されるように構成されている。
The washing machine shown in FIGS. 1 and 2 is entirely covered with a cover 20. Although not shown in detail, a tank 21 is provided at a lower portion of the inside, and a water supply pipe 1 from a water supply is provided at an appropriate position. In addition, a water supply device using a float is provided in the tank, and the water level L in the tank 21 is kept constant even during the cleaning operation.

【0019】さらに、前記カバー20内部の上部には、
モータ2及び本発明に係る往復動ポンプ3が設けられ、
前記タンク20内の洗浄用水を前記往復動ポンプ3によ
り吸水加圧して、吐出口4から図示しないホースを介
し、さらに図示しない噴射ノズル等に供給する構成とさ
れている。
Further, at the upper part inside the cover 20,
A motor 2 and a reciprocating pump 3 according to the invention are provided,
The cleaning water in the tank 20 is absorbed and pressurized by the reciprocating pump 3, and is supplied from the discharge port 4 to a jet nozzle (not shown) through a hose (not shown).

【0020】図3及び図4には、それぞれ前記往復動ポ
ンプ3を構成する吐出弁室5部の概略縦断面図が示され
ている。図中、6はシリンダ、7はピストン、8は吸入
弁、9は吐出弁である。すなわち、前記ピストン7の後
退時に前記吸入弁8部から洗浄用水を吸入し、前記ピス
トン7の進出時に前記吐出弁9部から洗浄水を吐出する
ものである。その他、前記吐出弁室5には、図示しない
が調圧弁が連係され、作業に合わせて吐出液圧の調整が
自在に構成されている。
FIGS. 3 and 4 are schematic longitudinal sectional views of the discharge valve chamber 5 constituting the reciprocating pump 3 respectively. In the figure, 6 is a cylinder, 7 is a piston, 8 is a suction valve, and 9 is a discharge valve. That is, when the piston 7 retreats, cleaning water is sucked from the suction valve 8 portion, and when the piston 7 advances, the cleaning water is discharged from the discharge valve 9 portion. In addition, a pressure regulating valve (not shown) is linked to the discharge valve chamber 5 so that the discharge liquid pressure can be freely adjusted according to the work.

【0021】まず、前記図3に示す実施の一形態を説明
する。該図3には、前記吐出弁室5の適位置に外部に開
口するオリフィス10が設けられている。すなわち、予
め、許容漏水量に対応した孔径のオリフィス10を形成
したニップルタイプのオリフィス本体11を、前記吐出
弁室5の下部適位置に螺合している。
First, the embodiment shown in FIG. 3 will be described. In FIG. 3, an orifice 10 that opens to the outside at an appropriate position in the discharge valve chamber 5 is provided. That is, a nipple-type orifice body 11 in which an orifice 10 having a hole diameter corresponding to the permissible water leakage amount is previously screwed into an appropriate position below the discharge valve chamber 5.

【0022】さらに、前記オリフィス本体11の外部端
にビニールホース等の透明配管12が連結され、該透明
配管12の他端が前記タンク21等に導かれる。
Further, a transparent pipe 12 such as a vinyl hose is connected to the outer end of the orifice body 11, and the other end of the transparent pipe 12 is guided to the tank 21 and the like.

【0023】前記透明配管12は、機体外部、あるいは
該機体がカバー20で覆われている場合には該カバー2
0の外部から見ることができるように配設される。すな
わち、機体がカバー20で覆われている場合には、該カ
バー20に覗き窓を設ける等、該カバー20を外すこと
なく前記透明配管12を外部から見ることができるよう
にされる。
The transparent pipe 12 is provided outside the body, or when the body is covered with the cover 20, the cover 2.
0 so that it can be seen from outside. That is, when the body is covered with the cover 20, the transparent pipe 12 can be viewed from the outside without removing the cover 20, for example, by providing a viewing window in the cover 20.

【0024】この図3の実施の一形態によれば、前記オ
リフィス10がポンプ駆動初期には空気抜きとして機能
し、空気抜きが完了して前記吐出弁室5内に洗浄水が充
満されるとともに、前記オリフィス10から前記洗浄水
が少量ずつ前記透明配管12に排出されることになる。
According to the embodiment shown in FIG. 3, the orifice 10 functions as an air vent in the initial stage of driving the pump, the air vent is completed, and the discharge valve chamber 5 is filled with washing water. The washing water is discharged from the orifice 10 to the transparent pipe 12 little by little.

【0025】したがって、前記透明配管12への前記洗
浄水の排出開始を見て空気抜き完了を確認して、前記ポ
ンプ3の継続運転を行えばよく、空運転による該ポンプ
3の各種の故障等を防止できる。
Therefore, it is sufficient to confirm the completion of air release by checking the start of the discharge of the washing water to the transparent pipe 12, and to continue the operation of the pump 3, and to prevent various failures of the pump 3 due to the idling. Can be prevented.

【0026】図4には、前記吐出弁室5部の他の実施の
一形態が示されている。すなわち、比較的径大のオリフ
ィス10が前記吐出弁室5の上部に開口され、該オリフ
ィス10部に吸入液体、すなわち、洗浄水により浮上さ
せられて該オリフィス10を閉塞する弁13を設けたも
のである。
FIG. 4 shows another embodiment of the discharge valve chamber 5. That is, an orifice 10 having a relatively large diameter is opened at the upper part of the discharge valve chamber 5, and a valve 13 which closes the orifice 10 by being floated by a suction liquid, that is, washing water, is provided in the orifice 10 portion. It is.

【0027】この図4の実施の一形態によれば、前記図
3の実施の一形態と同様に、前記オリフィス10がポン
プ駆動初期には空気抜きと機能し、空気抜きが完了して
前記吐出弁室5内に洗浄水が充満させられると、該洗浄
水によって前記弁13が浮上させられて前記オリフィス
10を閉塞し、該オリフィス10からの洗浄水の漏出が
止められる。
According to the embodiment of FIG. 4, similarly to the embodiment of FIG. 3, the orifice 10 functions as an air vent at the initial stage of driving the pump, and the air vent is completed and the discharge valve chamber is completed. When the washing water is filled in the valve 5, the valve 13 is floated by the washing water to close the orifice 10, and the leakage of the washing water from the orifice 10 is stopped.

【0028】しかしながら、前記オリフィス10の閉塞
時に少量の洗浄水が前記透明配管12に排出され、その
後にも前記弁13部から前記透明配管12内に少量の洗
浄水が排出されることがあり、前記透明配管12内の排
出された洗浄水を見て空気抜き完了を確認でき、該空気
抜き完了を確認して前記ポンプ3の継続運転を行えばよ
い。
However, when the orifice 10 is closed, a small amount of washing water may be discharged to the transparent pipe 12, and thereafter a small amount of washing water may be discharged from the valve 13 into the transparent pipe 12. The completion of air bleeding can be confirmed by looking at the cleaning water discharged in the transparent pipe 12, and the pump 3 can be continuously operated after confirming the completion of the air bleeding.

【0029】[0029]

【発明の効果】本発明によれば、部品点数を削減し、空
気抜き装置の構造単純化を図り、コストダウンが可能で
あるとともに、空気抜き完了の確認の容易化を図ること
ができる。
According to the present invention, the number of parts can be reduced, the structure of the air venting device can be simplified, the cost can be reduced, and the confirmation of the completion of air venting can be facilitated.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の往復動ポンプを内蔵した洗浄機の一例
を示す側面図である。
FIG. 1 is a side view showing an example of a washer incorporating a reciprocating pump according to the present invention.

【図2】図1に示す洗浄機の正面図である。FIG. 2 is a front view of the washing machine shown in FIG.

【図3】本発明の往復動ポンプを構成する吐出弁室の概
略縦断面図である。
FIG. 3 is a schematic vertical sectional view of a discharge valve chamber constituting the reciprocating pump of the present invention.

【図4】本発明の往復動ポンプを構成する吐出弁室の他
の実施の一形態を示す縦断面図である。
FIG. 4 is a longitudinal sectional view showing another embodiment of the discharge valve chamber constituting the reciprocating pump of the present invention.

【符号の説明】[Explanation of symbols]

5 吐出弁室 10 オリフィス 12 透明配管 13 弁 5 Discharge valve chamber 10 Orifice 12 Transparent piping 13 Valve

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 吐出弁室(5)の適位置に外部に開口す
るオリフィス(10)を設けたことを特徴とする往復動
ポンプ。
1. A reciprocating pump characterized in that an orifice (10) opening to the outside is provided at an appropriate position in a discharge valve chamber (5).
【請求項2】 前記オリフィス(10)が前記吐出弁室
(5)の上部に開口され、前記オリフィス(10)部に
吸入液体により浮上させられて前記オリフィス(10)
を閉塞する弁(13)を設けたことを特徴とする請求項
1に記載の往復動ポンプ。
2. The orifice (10) is opened at an upper portion of the discharge valve chamber (5), and is floated by suction liquid at the orifice (10).
2. A reciprocating pump according to claim 1, further comprising a valve (13) for closing the pump.
【請求項3】 前記オリフィス(10)外部に透明配管
(12)を連結したことを特徴とする請求項1又は2に
記載の往復動ポンプ。
3. The reciprocating pump according to claim 1, wherein a transparent pipe (12) is connected outside the orifice (10).
JP25966099A 1999-09-14 1999-09-14 Reciprocating pump Pending JP2001082349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25966099A JP2001082349A (en) 1999-09-14 1999-09-14 Reciprocating pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25966099A JP2001082349A (en) 1999-09-14 1999-09-14 Reciprocating pump

Publications (1)

Publication Number Publication Date
JP2001082349A true JP2001082349A (en) 2001-03-27

Family

ID=17337142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25966099A Pending JP2001082349A (en) 1999-09-14 1999-09-14 Reciprocating pump

Country Status (1)

Country Link
JP (1) JP2001082349A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008161740A (en) * 2006-12-27 2008-07-17 Chugai Ro Co Ltd Coating liquid supply device
JP2010121549A (en) * 2008-11-20 2010-06-03 Suiden Co Ltd Reciprocating pump
CN105080887A (en) * 2015-08-19 2015-11-25 宁波恒瑞机械有限公司 Gas exhausting and liquid sucking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008161740A (en) * 2006-12-27 2008-07-17 Chugai Ro Co Ltd Coating liquid supply device
JP2010121549A (en) * 2008-11-20 2010-06-03 Suiden Co Ltd Reciprocating pump
CN105080887A (en) * 2015-08-19 2015-11-25 宁波恒瑞机械有限公司 Gas exhausting and liquid sucking device

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