JP3420674B2 - Drain opening and closing device in fluid pump device - Google Patents
Drain opening and closing device in fluid pump deviceInfo
- Publication number
- JP3420674B2 JP3420674B2 JP32462796A JP32462796A JP3420674B2 JP 3420674 B2 JP3420674 B2 JP 3420674B2 JP 32462796 A JP32462796 A JP 32462796A JP 32462796 A JP32462796 A JP 32462796A JP 3420674 B2 JP3420674 B2 JP 3420674B2
- Authority
- JP
- Japan
- Prior art keywords
- lower pressing
- drain
- tubular member
- fluid pump
- recess
- 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
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、流体ポンプ、流体
ポンプに流体を供給するためのホッパ、及びホッパに配
設された吐出管を備えてなる流体ポンプ装置に用いられ
るドレン開閉装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain opening / closing device used in a fluid pump device including a fluid pump, a hopper for supplying fluid to the fluid pump, and a discharge pipe arranged in the hopper.
【０００２】[0002]
【従来の技術】例えば、コンクリートポンプ車において
は、コンクリートポンプ、コンクリートポンプに生コン
クリートを供給するためのホッパ、及び該ホッパに配設
され、ホッパからコンクリートポンプに供給される生コ
ンクリートの通路となる吐出管を備えてなる流体ポンプ
装置が車体に搭載されている。そして、このような流体
ポンプ装置においては、コンクリートポンプやホッパを
洗浄した後の洗浄廃水などを排出するためのドレン開閉
装置が用いられている。2. Description of the Related Art For example, in a concrete pump car, a concrete pump, a hopper for supplying fresh concrete to the concrete pump, and a passage for the fresh concrete which is arranged in the hopper and is supplied from the hopper to the concrete pump. A fluid pump device including a discharge pipe is mounted on a vehicle body. In such a fluid pump device, a drain opening / closing device for discharging cleaning wastewater after cleaning the concrete pump and the hopper is used.
【０００３】図９はそのようなドレン開閉装置Ｐの概略
構成を示す図である。このドレン開閉装置Ｐは、配設対
象（ここではホッパ）５１の底部に配設された筒状部材
５２、筒状部材５２内に主要部が収納され、弾性変形す
ることにより筒状部材５２の内壁に密着して筒状部材５
２を密閉する弾性部材５３、弾性部材５３の上面側に配
設された上部押圧板５４、上部押圧板５４と一体に形成
され、その外周面にねじが切られたロッド部５５、弾性
部材５３の下側に配設され、上部押圧板５４と共働して
弾性部材５３を上下方向から押圧し、弾性部材５３を弾
性変形させて筒状部材５２の内周面に密着させる下部押
圧板５６、ロッド部の外周のねじと螺合し、所定の方向
に回転させて締め付けることにより、下部押圧板５６を
弾性部材５３に押圧するナット５７を備えて構成されて
いる。また、ロッド部５５は、ワッシャ５８，ナット５
９により弾性部材５３に取り付けられている。FIG. 9 is a diagram showing a schematic configuration of such a drain opening / closing device P. As shown in FIG. In this drain opening / closing device P, a cylindrical member 52 arranged at the bottom of an arrangement target (here, a hopper) 51, a main part is housed in the cylindrical member 52, and the cylindrical member 52 is elastically deformed. The tubular member 5 closely attached to the inner wall
2. An elastic member 53 for sealing 2; an upper pressing plate 54 disposed on the upper surface side of the elastic member 53; a rod portion 55 integrally formed with the upper pressing plate 54 and having an outer peripheral surface threaded; and an elastic member 53. A lower pressing plate 56 which is disposed on the lower side of the upper pressing plate 54 and presses the elastic member 53 in the vertical direction in cooperation with the upper pressing plate 54 to elastically deform the elastic member 53 and bring it into close contact with the inner peripheral surface of the tubular member 52. , A nut 57 that presses the lower pressing plate 56 against the elastic member 53 by screwing the screw on the outer periphery of the rod portion and rotating and tightening in a predetermined direction. The rod portion 55 includes a washer 58 and a nut 5
It is attached to the elastic member 53 by 9.
【０００４】このように構成された従来のドレン開閉装
置Ｐを使用する場合には、下部押圧板５６を手で押さえ
ながら、その下面側に配設されたナット５７を回転させ
て締め付けることにより、図１０に示すように、弾性部
材５３を弾性変形させて筒状部材５２の内周面に密着さ
せることにより筒状部材５２を密閉するとともに、弾性
部材５３、上部押圧板５４、ロッド部５５及びナット５
７、下部押圧板５６などからなるドレンプラグＰ0を筒
状部材５２内に保持させる。そして、例えば、ホッパの
内部を水洗した後に洗浄廃水を排出するような場合に
は、ナット５７を回転させてゆるめ、ナット５７がある
程度ゆるむと、下部押圧板５６を手で支えてさらにナッ
ト５７をゆるめ、内部の洗浄廃水を外部に排出するとと
もに、筒状部材５２を介してホッパ５１に取り付けられ
ていたドレンプラグＰ0を取り外すようにしている。When the conventional drain opening / closing device P having such a structure is used, the nut 57 arranged on the lower surface of the lower pressing plate 56 is rotated and tightened by pressing the lower pressing plate 56 by hand. As shown in FIG. 10, the elastic member 53 is elastically deformed and brought into close contact with the inner peripheral surface of the cylindrical member 52 to seal the cylindrical member 52, and the elastic member 53, the upper pressing plate 54, the rod portion 55, and Nut 5
7, the drain plug P 0 including the lower pressing plate 56 is held in the tubular member 52. Then, for example, when the cleaning wastewater is discharged after the inside of the hopper is washed with water, the nut 57 is rotated and loosened, and when the nut 57 is loosened to some extent, the lower pressing plate 56 is supported by the hand to further remove the nut 57. The drain plug P 0 attached to the hopper 51 through the tubular member 52 is removed while the washing wastewater inside is loosened and discharged to the outside.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記従来のド
レン開閉装置Ｐにおいては、配設対象に取り付ける場合
に、一方の手で下部押圧板５６を支持しつつ、他方の手
でナットを回転させることが必要となり、両手を使用し
なければならなくなるため、作業性が悪いという問題点
がある。However, in the above-described conventional drain opening / closing device P, when attached to an object to be disposed, the lower pressing plate 56 is supported by one hand while the nut is rotated by the other hand. Since it is necessary to use both hands, there is a problem that workability is poor.
【０００６】特に、配設対象がコンクリートポンプ車の
ホッパやその下部に取り付けられた吐出管であるような
場合は、ホッパの下に両手をもぐり込ませて作業しなけ
ればならず、きわめて作業性が悪いという問題点があ
る。Particularly, when the object to be arranged is a hopper of a concrete pump car or a discharge pipe attached to the lower part of the concrete pump car, it is necessary to work with both hands under the hopper, which is extremely workable. There is a problem that is bad.
【０００７】本発明は、上記問題点を解決するものであ
り、取付けや取外しなどの作業を容易に行うことが可能
で、取扱性に優れた流体ポンプ装置におけるドレン開閉
装置を提供することを目的とする。The present invention solves the above problems, and an object of the present invention is to provide a drain opening / closing device in a fluid pump device which can be easily attached and detached and which is easy to handle. And
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明の流体ポンプ装置におけるドレン開閉装置
は、流体ポンプと、前記流体ポンプに流体を供給するた
めのホッパと、前記ホッパに配設され、前記ホッパから
前記流体ポンプに供給される流体の通路となる吐出管と
を備えてなる流体ポンプ装置において、前記流体ポン
プ、ホッパ、若しくは吐出管の底部に設けられ、ドレン
として機能する内部通路を有する筒状部材と、前記筒状
部材に固定されるとともに凹部を有する係合部材と、前
記筒状部材の内部に挿入され、下部押圧部材により押圧
して弾性部材を変形させることにより前記筒状部材の内
部通路を閉鎖するドレンプラグと、前記下部押圧部材に
配設され、前記ドレンプラグが前記筒状部材の内部通路
に挿入されたときに、前記係合部材の凹部に係合して前
記ドレンプラグを保持しうる突起部と、を具備すること
を特徴としている。In order to achieve the above object, a drain opening / closing device in a fluid pump device of the present invention includes a fluid pump, a hopper for supplying fluid to the fluid pump, and a hopper provided for the hopper. A fluid pump device provided with a discharge pipe serving as a passage for fluid supplied from the hopper to the fluid pump, the inside being provided at the bottom of the fluid pump, the hopper, or the discharge pipe and functioning as a drain. A tubular member having a passage, an engaging member fixed to the tubular member and having a recess, and inserted into the tubular member and pressed by a lower pressing member to deform the elastic member, A drain plug that closes the internal passage of the tubular member, and the lower pressing member is disposed, when the drain plug is inserted into the internal passage of the tubular member, Engages in the recess of Kigakarigo member is characterized by comprising a projecting portion capable of retaining the drain plug.
【０００９】凹部を有する係合部材を筒状部材に配設す
るとともに、下部押圧部材に上記係合部材の凹部と係合
する突起部を設け、下部押圧部材を所定の方向に回転さ
せた場合に、係合部に形成された凹部と下部押圧部材の
突起部とが係合してドレンプラグが筒状部材から落下し
ないように保持される構成とすることにより、下部押圧
板を係合部材に確実に保持させることが可能になり、ド
レンの閉鎖操作を片手で行うことができるようになる。When the engaging member having the concave portion is arranged on the tubular member, and the lower pressing member is provided with the projection portion which engages with the concave portion of the engaging member, and the lower pressing member is rotated in a predetermined direction. In addition, the concave portion formed in the engaging portion and the projection portion of the lower pressing member are engaged with each other so that the drain plug is held so as not to fall from the tubular member. Therefore, the drain can be securely held, and the drain can be closed with one hand.
【００１０】また、本発明の流体ポンプ装置におけるド
レン開閉装置は、前記係合部材の前記凹部が形成された
位置と逆側の位置にも凹部を形成し、前記下部押圧部材
を所定の方向又はその逆の方向に回転させた場合のいず
れの場合にも、前記凹部が前記下部押圧部材の突起部と
係合して、ドレンプラグが前記筒状部材から落下しない
ようにしたことを特徴としている。Further, in the drain opening / closing device of the fluid pump device of the present invention, a recess is formed at a position opposite to the position where the recess of the engaging member is formed, and the lower pressing member is moved in a predetermined direction or in a predetermined direction. In any case of rotating in the opposite direction, the recess is engaged with the protrusion of the lower pressing member so that the drain plug does not drop from the tubular member. .
【００１１】上記凹部が形成された位置と対向する位置
にも凹部を形成した係合部材を用いるようにした場合、
下部押圧部材を所定の方向又はその逆の方向に回転させ
た場合のいずれの場合にも、下部押圧部材の突起部が、
上記係合部材の２つの凹部のいずれかと係合して、ドレ
ンプラグが筒状部材から落下することを確実に防止する
ことが可能になる。したがって、ドレンを閉鎖する場合
とドレンを解放する場合の両方の作業性を向上させるこ
とが可能になる。In the case where an engaging member having a recess formed at a position opposite to the position where the recess is formed is used,
In any case when the lower pressing member is rotated in a predetermined direction or the opposite direction, the protrusion of the lower pressing member is
By engaging with either of the two recesses of the engaging member, it becomes possible to reliably prevent the drain plug from dropping from the tubular member. Therefore, it becomes possible to improve workability both when closing the drain and when releasing the drain.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を示し
てその特徴とするところをさらに詳しく説明する。な
お、図１は、コンクリートポンプ車に用いられた本発明
の一実施形態にかかる流体ポンプ装置におけるドレン開
閉装置を示す図、図２はその拡大図、図３はドレンプラ
グの構成を示す分解斜視図、図４(ａ)はドレンプラグを
筒状部材に挿入する前の状態を示す断面図、図４(ｂ)は
ドレンプラグを筒状部材に挿入した後のドレン開閉装置
の構成を示す図２Ａ−Ａ断面図である。BEST MODE FOR CARRYING OUT THE INVENTION The features of the embodiments of the present invention will be described below in more detail. 1 is a diagram showing a drain opening / closing device in a fluid pump device according to an embodiment of the present invention used in a concrete pump truck, FIG. 2 is an enlarged view thereof, and FIG. 3 is an exploded perspective view showing a configuration of a drain plug. 4A is a sectional view showing a state before the drain plug is inserted into the tubular member, and FIG. 4B is a diagram showing a configuration of the drain opening / closing device after the drain plug is inserted into the tubular member. It is 2A-A sectional view.
【００１３】この実施形態のドレン開閉装置Ｐは、図１
に示すように、車体Ａの後部にコンクリートポンプＢを
搭載するとともに、車体Ａの後部に配設されたホッパ支
持台Ｃに、ホッパＨなどからなるホッパ装置Ｄを搭載し
たコンクリートポンプ車Ｅにおいて用いられているもの
である。すなわち、このドレン開閉装置は、図１〜図４
に示すように、配設対象（ここでは、ホッパＨの底部に
取り付けられた吐出管）１の底部に、吐出管１と一体に
形成された筒状部材（円筒部材）２と、筒状部材２の、
ドレンとして機能する内部通路２ａ内に主要部が収納さ
れ、弾性変形することにより筒状部材２の内部通路２ａ
の内壁に密着して内部通路２ａを密閉する弾性部材３
と、弾性部材３の上面側に配設された上部押圧板（上部
押圧部材）４と、上部押圧板４と一体に形成され、その
外周面にねじが切られたロッド部５と、弾性部材３の下
側に配設され、上部押圧板４と共働して弾性部材３を上
下方向から押圧し、弾性部材３を弾性変形させて筒状部
材２の内部通路２ａの内周面に密着させる下部押圧板
（下部押圧部材）６と、上記ロッド部５の、下部押圧部
材６の下面側に露出した部分と螺合し、所定の方向に回
転させて締め付けることにより、下部押圧板６を弾性部
材３に押圧するナット（螺合部材）７とを備えて構成さ
れている。なお、ナット７には手で回転させやすいよう
にレバー７ａが取り付けられている。そして、このドレ
ン開閉装置Ｐにおいては、上述の弾性部材３、上部押圧
板４、ロッド部５及びナット７、下部押圧板６などがド
レンプラグＰ0を構成している。また、ロッド部５は、
弾性部材３の上面に形成された貫通穴３ａを経て下方に
引き出されており、ワッシャ８，ナット９により弾性部
材３の上面に取り付けられている。なお、この実施形態
においては、上記ロッド部５及びナット７が弾性部材３
を上下方向から押圧するための押圧機構を構成してい
る。The drain opening / closing device P of this embodiment is shown in FIG.
As shown in FIG. 2, the concrete pump B is mounted on the rear part of the vehicle body A, and the concrete pump car E is equipped with the hopper device D including the hopper H on the hopper support base C arranged on the rear part of the vehicle body A. It is what has been. That is, this drain opening / closing device is shown in FIGS.
As shown in FIG. 2, a tubular member (cylindrical member) 2 integrally formed with the discharge pipe 1 and a tubular member are provided at the bottom of an arrangement target (here, the discharge pipe attached to the bottom of the hopper H) 1. 2,
A main part is housed in the internal passage 2a functioning as a drain, and is elastically deformed so that the internal passage 2a of the tubular member 2 is
Member 3 that closely adheres to the inner wall of the inner wall and seals the internal passage 2a
An upper pressing plate (upper pressing member) 4 disposed on the upper surface side of the elastic member 3, a rod portion 5 integrally formed with the upper pressing plate 4 and having an outer peripheral surface threaded, and an elastic member 3, which is arranged on the lower side of the cylindrical member 2 and cooperates with the upper pressing plate 4 to press the elastic member 3 from above and below to elastically deform the elastic member 3 to closely contact the inner peripheral surface of the internal passage 2a of the tubular member 2. The lower pressing plate (lower pressing member) 6 to be engaged with the portion of the rod portion 5 exposed on the lower surface side of the lower pressing member 6 is screwed, and is rotated in a predetermined direction to be tightened, whereby the lower pressing plate 6 is fixed. A nut (screw member) 7 that presses the elastic member 3 is provided. A lever 7a is attached to the nut 7 so that it can be easily rotated by hand. In the drain opening / closing device P, the elastic member 3, the upper pressing plate 4, the rod portion 5, the nut 7, the lower pressing plate 6 and the like constitute a drain plug P 0 . Further, the rod portion 5 is
The elastic member 3 is drawn downward through a through hole 3a formed in the upper surface of the elastic member 3, and is attached to the upper surface of the elastic member 3 by a washer 8 and a nut 9. In addition, in this embodiment, the rod portion 5 and the nut 7 are the elastic members 3
And a pressing mechanism for pressing from above and below.
【００１４】さらに、上記筒状部材２の外周には、１８
０°の間隔をおいて吊設状態に一対の係合部材１２が固
定されており、各係合部材の一辺側の中央部に下部押圧
板６と係合しうる凹部１１が形成されている。Further, on the outer circumference of the cylindrical member 2, 18
A pair of engaging members 12 are fixed in a suspended state at an interval of 0 °, and a concave portion 11 capable of engaging with the lower pressing plate 6 is formed in the central portion on one side of each engaging member. .
【００１５】また、上記下部押圧板６としては、図５及
び図６に示すように、周囲の所定の位置に、所定の方向
に回転させたときに係合部材１２の凹部１１と係合する
突起部６ａ及び逆側に回転させたときに係合部材１２の
凹部１１が形成されていない方の辺２２と当接する他方
の突起部６ｂを備えたものが用いられている。Further, as shown in FIGS. 5 and 6, the lower pressing plate 6 engages with the recess 11 of the engaging member 12 at a predetermined position on the periphery when rotated in a predetermined direction. The protrusion 6a and the other protrusion 6b that comes into contact with the side 22 of the engaging member 12 on which the recess 11 is not formed when rotated to the opposite side are used.
【００１６】次に、上記のように構成されたドレン開閉
装置の動作について説明する。まず、ドレンプラグＰ0
を、筒状部材２を介して配設対象である吐出管１に取り
付ける場合、図４(ａ)，(ｂ)に示すように、ドレンプラ
グＰ0を筒状部材２の内部通路２ａ内に挿入し、下部押
圧板６の下側から片方の手でナット７を、図５の矢印Ｘ
で示す方向に回転させると、下部押圧板６がナット７と
ともに回転してその突起部６ａが係合部材１２の凹部１
１に係合し、ドレンプラグＰ0が筒状部材２を介して吐
出管１に保持される（図４(ｂ)）。Next, the operation of the drain opening / closing device configured as described above will be described. First, the drain plug P 0
4 is attached to the discharge pipe 1 to be disposed via the tubular member 2, the drain plug P 0 is inserted into the internal passage 2a of the tubular member 2 as shown in FIGS. 4 (a) and 4 (b). Insert the nut 7 from the lower side of the lower pressing plate 6 with one hand, and
When rotated in the direction indicated by, the lower pressing plate 6 rotates together with the nut 7 so that the protrusion 6a of the lower pressing plate 6 is recessed 1
1 and the drain plug P 0 is held by the discharge pipe 1 via the tubular member 2 (FIG. 4 (b)).
【００１７】それから、さらにナット７を回転させて締
め付けることにより、図７に示すように、弾性部材３が
弾性変形して筒状部材２の内部通路２ａの内周面に密着
し、内部通路２ａが密閉されるとともに、ドレンプラグ
Ｐ0が筒状部材２に保持される。Then, by further rotating and tightening the nut 7, as shown in FIG. 7, the elastic member 3 is elastically deformed and brought into close contact with the inner peripheral surface of the internal passage 2a of the tubular member 2, and the internal passage 2a. Is sealed and the drain plug P 0 is held by the tubular member 2.
【００１８】一方、ホッパＨの内部を水洗した後に洗浄
廃水を排出する場合、まずナット７を図６の矢印Ｙで示
す方向に回転させてゆるめる。こうしてナット７を矢印
Ｙの方向に回転させてゆくと、弾性部材３が徐々に元の
形状に復帰するとともに、下部押圧板６がナット７とと
もに回転し、他方の突起部６ｂが係合部材１２の凹部１
１が形成されている辺２１と逆側の、凹部の形成されて
いない辺２２に当接し、その回転が阻止される（図
６）。それからさらにナット７を回転させると、図４
(ｂ)に示すように、弾性部材３が元の形状に復帰して、
筒状部材２の内部通路２ａの内周面との間に隙間が形成
され、ドレンプラグＰ0が筒状部材２から取り外される
とともに、吐出管１から洗浄廃水などが排出される。On the other hand, when the cleaning waste water is discharged after washing the inside of the hopper H, the nut 7 is first loosened by rotating it in the direction shown by the arrow Y in FIG. When the nut 7 is rotated in the direction of the arrow Y in this manner, the elastic member 3 gradually returns to its original shape, the lower pressing plate 6 rotates together with the nut 7, and the other protrusion 6b engages with the engaging member 12. Recess 1
1 is abutted on the side 22 on which the concave portion is not formed, which is opposite to the side 21 on which the 1 is formed, and its rotation is blocked (FIG. 6). Then, when the nut 7 is further rotated, as shown in FIG.
As shown in (b), the elastic member 3 returns to its original shape,
A gap is formed between the cylindrical member 2 and the inner peripheral surface of the internal passage 2a, the drain plug P 0 is removed from the cylindrical member 2, and the cleaning wastewater is discharged from the discharge pipe 1.
【００１９】上記実施形態の流体ポンプ装置におけるド
レン開閉装置Ｐにおいては、下部押圧板６の周囲の所定
の位置に係合部材１２の凹部１１と係合する突起部６
ａ，６ｂを設けるとともに、凹部１１を有する係合部材
１２を筒状部材２に取り付けるようにしているので、例
えば、下部押圧板６をナット７とともに所定の方向（ナ
ット７を締め付ける方向）に回転させることにより、片
手の操作で下部押圧板６の突起部６ａを係合部材１２の
凹部１１に係合させて下部押圧板６を係合部材１２によ
り保持し、また、下部押圧板６をナット７とともに所定
の方向（ナット７をゆるめる方向）に回転させることに
より、片手の操作で下部押圧板６の突起部６ａと係合部
材１２の凹部１１との係合を解いて、ドレンプラグＰ0
を筒状部材２から解放することが可能になり、ドレン開
閉装置Ｐの取付け作業を容易なものにすることができ
る。In the drain opening / closing device P of the fluid pump device of the above embodiment, the projection 6 that engages with the recess 11 of the engaging member 12 at a predetermined position around the lower pressing plate 6.
Since a and 6b are provided and the engaging member 12 having the recess 11 is attached to the tubular member 2, for example, the lower pressing plate 6 is rotated together with the nut 7 in a predetermined direction (direction in which the nut 7 is tightened). By doing so, the protrusion 6a of the lower pressing plate 6 is engaged with the concave portion 11 of the engaging member 12 by one-handed operation to hold the lower pressing plate 6 by the engaging member 12, and the lower pressing plate 6 is a nut. By rotating in a predetermined direction (a direction in which the nut 7 is loosened) together with 7, the protrusion 6a of the lower pressing plate 6 and the recess 11 of the engaging member 12 are disengaged by one-handed operation, and the drain plug P 0
Can be released from the tubular member 2, and the work of attaching the drain opening / closing device P can be facilitated.
【００２０】なお、上記実施形態では、ドレン開閉装置
Ｐを吐出管１の底部に取り付けた場合について説明した
が、本発明のドレン開閉装置は、吐出管の底部に限ら
ず、コンクリートポンプのケーシングの底部や、ホッパ
の底部などに取り付けることも可能である。また、吐出
管、コンクリートポンプのケーシング、ホッパなどの底
部にドレン開閉装置を取り付ける場合の取付け個数につ
いても特に制約はなく、単一のドレン開閉装置を配設し
てもよく、また複数のドレン開閉装置を配設するように
してもよい。Although the drain opening / closing device P is attached to the bottom portion of the discharge pipe 1 in the above-described embodiment, the drain opening / closing device of the present invention is not limited to the bottom portion of the discharge pipe, and is not limited to the casing of a concrete pump. It can also be attached to the bottom or the bottom of the hopper. In addition, there is no particular limitation on the number of drain opening / closing devices to be attached to the bottom of the discharge pipe, the casing of the concrete pump, the hopper, etc., and a single drain opening / closing device may be installed, or multiple drain opening / closing devices may be installed. The device may be provided.
【００２１】さらに、上記実施形態では、筒状部材２が
配設対象（吐出管）１に一体に形成されている場合につ
いて説明したが、筒状部材の配設態様には特別の制約は
なく、筒状部材を吐出管などの配設対象とは別体として
形成し、これをフランジ止めなどの方法で吐出管などの
配設対象に取り付けるようにしてもよい。Further, in the above embodiment, the case where the tubular member 2 is formed integrally with the object (discharging pipe) 1 to be disposed has been described, but there is no special restriction on the manner of disposing the tubular member. Alternatively, the tubular member may be formed as a separate body from the object to be arranged such as the discharge pipe, and this may be attached to the object to be arranged such as the discharge pipe by a method such as flange fixing.
【００２２】また、上記実施形態では、係合部材１２の
一辺２１にのみ凹部１１を設けた場合について説明した
が、図８に示すように、凹部１１が形成された辺２１と
対向する辺２２にも凹部１１ａを設けた構成とすること
も可能である。このようにした場合、下部押圧板６を所
定の方向又はその逆の方向に回転させた場合のいずれの
場合にも、下部押圧板６の突起部６ａ，６ｂが、上記係
合部材１２の２つの凹部１１及び１１ａのいずれかと係
合して、ドレンプラグＰ0が筒状部材２から落下するこ
とを確実に防止することが可能になる。したがって、ナ
ット７を下部押圧板６とともに所定の方向に回転させて
ドレンプラグＰ0を筒状部材２に取り付けたりする場合
と、ナット７を下部押圧板６とともに逆の方向に回転さ
せてドレンプラグＰ0を筒状部材２から取り外したりす
る場合の両方の場合における操作性を向上させることが
できる。In the above embodiment, the case where the recess 11 is provided only on one side 21 of the engaging member 12 has been described. However, as shown in FIG. 8, a side 22 opposite to the side 21 where the recess 11 is formed. Moreover, it is also possible to adopt a configuration in which the recess 11a is provided. In this case, the protrusions 6a and 6b of the lower pressing plate 6 are not connected to the engaging member 12 in any of the cases where the lower pressing plate 6 is rotated in the predetermined direction or the opposite direction. It is possible to reliably prevent the drain plug P 0 from dropping from the tubular member 2 by engaging with either one of the recesses 11 and 11a. Therefore, when the drain plug P 0 is attached to the cylindrical member 2 by rotating the nut 7 together with the lower pressing plate 6 in a predetermined direction, and when the nut 7 is rotated together with the lower pressing plate 6 in the opposite direction, the drain plug P 0 is rotated. It is possible to improve the operability in both cases of removing P 0 from the tubular member 2.
【００２３】本発明は、さらにその他の点においても上
記実施形態に限定されるものではなく、筒状部材の形
状、ドレンプラグの具体的な構成、係合部材の形状や構
成などに関し、発明の要旨の範囲内において種々の応
用、変形を加えることが可能である。The present invention is not limited to the above-described embodiment in other respects as well, and relates to the shape of the tubular member, the specific configuration of the drain plug, the shape and configuration of the engaging member, and the like. Various applications and modifications can be made within the scope of the gist.
【００２４】[0024]
【発明の効果】上述のように、本発明の流体ポンプ装置
におけるドレン開閉装置は、凹部を有する係合部材を筒
状部材に配設するとともに、下部押圧部材の周囲の所定
の位置に係合部材の凹部と係合する突起部を設け、下部
押圧部材を所定の方向に回転させた場合に、係合部に形
成された凹部と下部押圧部材の突起部とが係合してドレ
ンプラグが筒状部材から落下しないように保持される構
成としているので、下部押圧板を、例えば螺合部材とと
もに所定の方向（螺合部材を締め付ける方向）に回転さ
せることにより、下部押圧板の突起部を係合部材の凹部
に係合させて下部押圧板を係合部材に確実に保持させる
ことが可能になり、その後の操作を片手で行うことがで
きるようになる。したがって、ドレン開閉装置の取付け
作業を容易なものにして、操作性を向上させることがで
きる。As described above, in the drain opening / closing device of the fluid pump device of the present invention, the engaging member having the concave portion is disposed on the tubular member, and the drain pressing device is engaged at a predetermined position around the lower pressing member. When a protrusion that engages with the recess of the member is provided and the lower pressing member is rotated in a predetermined direction, the recess formed in the engaging portion and the protrusion of the lower pressing member engage with each other to form a drain plug. Since it is configured to be held so as not to fall from the tubular member, the lower pressing plate is rotated together with the screwing member in a predetermined direction (a direction in which the screwing member is tightened), so that the protrusion of the lower pressing plate is removed. The lower pressing plate can be securely held by the engaging member by engaging with the concave portion of the engaging member, and the subsequent operation can be performed with one hand. Therefore, the drain opening / closing device can be easily attached and the operability can be improved.
【００２５】また、上記凹部が形成された位置と対向す
る位置にも凹部を形成した係合部材を用いるようにした
場合、下部押圧部材を所定の方向又はその逆の方向に回
転させた場合のいずれの場合にも、下部押圧部材の突起
部が、上記係合部材の２つの凹部のいずれかと係合し
て、ドレンプラグが筒状部材から落下することを確実に
防止することが可能になる。したがって、螺合部材を下
部押圧部材とともに所定の方向に回転させてドレンプラ
グを筒状部材に取り付けたりする場合と、螺合部材を下
部押圧部材とともに逆の方向に回転させてドレンプラグ
を筒状部材から取り外したりする場合の両方の場合にお
ける操作性を向上させることができる。Further, when the engaging member having the concave portion is used also at the position opposite to the position where the concave portion is formed, when the lower pressing member is rotated in the predetermined direction or the opposite direction, In any case, it is possible to reliably prevent the drain plug from dropping from the tubular member by engaging the protrusion of the lower pressing member with one of the two recesses of the engaging member. . Therefore, when the drain plug is attached to the cylindrical member by rotating the screwing member together with the lower pressing member in a predetermined direction, and when the screwing member is rotated together with the lower pressing member in the opposite direction, the drain plug is cylindrical. It is possible to improve the operability in both cases of removing from the member.
【図１】本発明の一実施形態にかかる流体ポンプ装置に
おけるドレン開閉装置をコンクリートポンプ車のホッパ
に配設された吐出管の底部に取り付けた状態を示す図で
ある。FIG. 1 is a diagram showing a state in which a drain opening / closing device in a fluid pump device according to an embodiment of the present invention is attached to a bottom portion of a discharge pipe arranged in a hopper of a concrete pump car.
【図２】図１の要部を拡大した図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】本発明の一実施形態にかかるドレン開閉装置を
構成するドレンプラグの構造を示す分解斜視図である。FIG. 3 is an exploded perspective view showing a structure of a drain plug which constitutes the drain opening / closing device according to the embodiment of the present invention.
【図４】(ａ)はドレンプラグを筒状部材に挿入する前の
状態を示す断面図、(ｂ)はドレンプラグを筒状部材に挿
入した後のドレン開閉装置の構成を示す図２Ａ−Ａ断面
図である。4A is a cross-sectional view showing a state before the drain plug is inserted into the tubular member, and FIG. 4B is a diagram showing the configuration of the drain opening / closing device after the drain plug is inserted into the tubular member. FIG.
【図５】本発明の一実施形態にかかるドレン開閉装置を
構成する下部押圧部材（板）の突起部が係合部材の凹部
に係合した状態を示す底面図である。FIG. 5 is a bottom view showing a state in which the protrusion of the lower pressing member (plate) constituting the drain opening / closing device according to the embodiment of the present invention is engaged with the recess of the engaging member.
【図６】本発明の一実施形態にかかるドレン開閉装置を
構成する下部押圧板の突起部が係合部材の凹部が形成さ
れている辺と逆側の辺に当接した状態を示す底面図であ
る。FIG. 6 is a bottom view showing a state in which the protrusion of the lower pressing plate that constitutes the drain opening / closing device according to the embodiment of the present invention is in contact with the side of the engaging member opposite to the side on which the recess is formed. Is.
【図７】本発明の一実施形態にかかるドレン開閉装置を
構成する弾性部材が変形して筒状部材の内周面に密着し
た状態を示す断面図である。FIG. 7 is a cross-sectional view showing a state in which an elastic member that constitutes the drain opening / closing device according to the embodiment of the present invention is deformed and comes into close contact with the inner peripheral surface of the tubular member.
【図８】本発明の一実施形態にかかるドレン開閉装置で
あって、構成の異なる係合部材を用いたものを示す図で
ある。FIG. 8 is a view showing a drain opening / closing device according to an embodiment of the present invention, which uses engaging members having different configurations.
【図９】従来のドレン開閉装置を示す図である。FIG. 9 is a view showing a conventional drain opening / closing device.
【図１０】従来のドレン開閉装置を構成する弾性部材が
変形して筒状部材の内周面に密着した状態を示す断面図
である。FIG. 10 is a cross-sectional view showing a state in which an elastic member that constitutes the conventional drain opening / closing device is deformed and is in close contact with the inner peripheral surface of the tubular member.
１ 配設対象（吐出管） ２ 筒状部材（円筒部材） ２ａ 内部通路 ３ 弾性部材 ３ａ 貫通穴 ４ 上部押圧板（上部押圧部材） ５ ロッド部 ６ 下部押圧板（下部押圧部材） ６ａ 突起部 ６ｂ 他方の突起部 ７ ナット（螺合部材） ７ａ レバー １１ 凹部 １１ａ 他方の凹部 １２ 係合部材 ２１ 凹部が形成されている辺 ２２ 凹部が形成されていない方の辺 Ｐ ドレン開閉装置 Ｐ0 ドレンプラグ1 Arrangement Target (Discharge Pipe) 2 Cylindrical Member (Cylindrical Member) 2a Internal Passage 3 Elastic Member 3a Through Hole 4 Upper Pressing Plate (Upper Pressing Member) 5 Rod Part 6 Lower Pressing Plate (Lower Pressing Member) 6a Projection 6b Other projection 7 Nut (screw member) 7a Lever 11 Recess 11a Other recess 12 Engaging member 21 Side with recess 22 Side without recess P drain opening / closing device P 0 drain plug
フロントページの続き (56)参考文献 実開 平８−74751（ＪＰ，Ｕ) 実開 昭53−56913（ＪＰ，Ｕ) 実開 昭56−40978（ＪＰ，Ｕ) 実開 平６−1258（ＪＰ，Ｕ) 実開 昭60−120990（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F04C 5/00 341 F04B 15/02 F04B 53/00 Continuation of the front page (56) Bibliographical flat 8-74751 (JP, U) Actual flat 53-56913 (JP, U) Actual flat 56-40978 (JP, U) Actual flat 6-1258 (JP , U) Actual development Sho 60-120990 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F04C 5/00 341 F04B 15/02 F04B 53/00
Claims (2)
給するためのホッパと、前記ホッパに配設され、前記ホ
ッパから前記流体ポンプに供給される流体の通路となる
吐出管とを備えてなる流体ポンプ装置において、 前記流体ポンプ、ホッパ、若しくは吐出管の底部に設け
られ、ドレンとして機能する内部通路を有する筒状部材
と、 前記筒状部材に固定されるとともに凹部を有する係合部
材と、 前記筒状部材の内部に挿入され、下部押圧部材により押
圧して弾性部材を変形させることにより前記筒状部材の
内部通路を閉鎖するドレンプラグと、 前記下部押圧部材に配設され、前記ドレンプラグが前記
筒状部材の内部通路に挿入されたときに、前記係合部材
の凹部に係合して前記ドレンプラグを保持しうる突起部
と、 を具備することを特徴とする流体ポンプ装置におけるド
レン開閉装置。1. A fluid pump, a hopper for supplying fluid to the fluid pump, and a discharge pipe provided in the hopper and serving as a passage for fluid supplied from the hopper to the fluid pump. In the fluid pump device, a tubular member having an internal passage provided at the bottom of the fluid pump, the hopper, or the discharge pipe and having an internal passage functioning as a drain; and an engagement member fixed to the tubular member and having a recess A drain plug that is inserted into the tubular member and that closes the internal passage of the tubular member by pressing the lower pressing member to deform the elastic member; and a drain plug that is disposed in the lower pressing member. A protrusion that engages with the recess of the engaging member and holds the drain plug when the plug is inserted into the internal passage of the tubular member. Drain switchgear in a fluid pumping device that.
と逆側の位置にも凹部を形成し、 前記下部押圧部材を所定の方向又はその逆の方向に回転
させた場合のいずれの場合にも、前記凹部が前記下部押
圧部材の突起部と係合して、ドレンプラグが前記筒状部
材から落下しないようにしたことを特徴とする請求項１
記載の流体ポンプ装置におけるドレン開閉装置。2. A recess is formed at a position opposite to a position where the recess is formed in the engaging member, and the lower pressing member is rotated in a predetermined direction or in the opposite direction. Also in this case, the recess is engaged with the protrusion of the lower pressing member so that the drain plug does not drop from the tubular member.
A drain opening / closing device in the fluid pump device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32462796A JP3420674B2 (en) | 1996-11-19 | 1996-11-19 | Drain opening and closing device in fluid pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32462796A JP3420674B2 (en) | 1996-11-19 | 1996-11-19 | Drain opening and closing device in fluid pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10148187A JPH10148187A (en) | 1998-06-02 |
| JP3420674B2 true JP3420674B2 (en) | 2003-06-30 |
Family
ID=18167941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32462796A Expired - Lifetime JP3420674B2 (en) | 1996-11-19 | 1996-11-19 | Drain opening and closing device in fluid pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3420674B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4435327B2 (en) | 1999-05-14 | 2010-03-17 | パナソニック株式会社 | Charge control device for battery pack |
-
1996
- 1996-11-19 JP JP32462796A patent/JP3420674B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10148187A (en) | 1998-06-02 |
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