JPH10148187A - Drain opening/closing device in fluid pump device - Google Patents
Drain opening/closing device in fluid pump deviceInfo
- Publication number
- JPH10148187A JPH10148187A JP8324627A JP32462796A JPH10148187A JP H10148187 A JPH10148187 A JP H10148187A JP 8324627 A JP8324627 A JP 8324627A JP 32462796 A JP32462796 A JP 32462796A JP H10148187 A JPH10148187 A JP H10148187A
- Authority
- JP
- Japan
- Prior art keywords
- lower pressing
- drain
- fluid pump
- hopper
- tubular member
- 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
Abstract
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 fluid pump, a hopper for supplying a fluid to the fluid pump, and a drain opening / closing device used for a fluid pump device provided with a discharge pipe provided 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 truck, a concrete pump, a hopper for supplying ready-mixed concrete to the concrete pump, and a passage for the ready-mixed concrete supplied from the hopper to the concrete pump are provided in the hopper. A fluid pump device having a discharge pipe is mounted on a vehicle body. In such a fluid pump device, a drain opening / closing device for discharging a washing wastewater after washing a concrete pump or a 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. The drain opening / closing device P includes a tubular member 52 disposed at the bottom of a placement object (here, a hopper) 51, and a main part housed in the tubular member 52. The cylindrical member 5 is in close contact with the inner wall.
An elastic member 53 for sealing the second member 2, an upper pressing plate 54 disposed on the upper surface side of the elastic member 53, a rod portion 55 formed integrally with the upper pressing plate 54 and having an outer peripheral surface threaded, an elastic member 53 And a lower pressing plate 56 that cooperates with an upper pressing plate 54 to press the elastic member 53 from above and below, thereby elastically deforming the elastic member 53 and bringing the elastic member 53 into close contact with the inner peripheral surface of the tubular member 52. And a nut 57 that presses the lower pressing plate 56 against the elastic member 53 by screwing with a 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.
9 attached to the elastic member 53.
【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。In the case of using the conventional drain opening / closing device P configured as described above, while holding the lower pressing plate 56 by hand, the nut 57 provided on the lower surface thereof is rotated and tightened. 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 55, Nut 5
7, to hold the drain plug P 0 made of the lower pressing plate 56 to the tubular member 52. Then, for example, in a case where the washing wastewater is discharged after the inside of the hopper is washed with water, the nut 57 is rotated to loosen it. Loosen, thereby discharging the internal washing waste liquid to the outside, so that removing the drain plug P 0 which is attached to the hopper 51 through the tubular member 52.
【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-mentioned conventional drain opening / closing device P, when it is mounted on an object to be disposed, the lower press plate 56 is supported by one hand and the nut is rotated by the other hand. Is required, and both hands must be used, resulting in a problem of poor workability.
【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。In particular, when the object to be installed is a hopper of a concrete pump truck or a discharge pipe attached to a lower part of the hopper, it is necessary to work with both hands under the hopper. 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。An object of the present invention is to solve the above problems and to provide a drain opening / closing device in a fluid pump device which can easily perform operations such as installation and removal, and is excellent in handleability. 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 and closing device in a fluid pump device according to the present invention comprises a fluid pump, a hopper for supplying fluid to the fluid pump, and a hopper. And a discharge pipe provided as a passage for a fluid supplied from the hopper to the fluid pump, provided at the bottom of the fluid pump, hopper, or discharge pipe and functioning as a drain. A tubular member having a passage, an engaging member fixed to the tubular member and having a concave portion, and inserted into the tubular member and pressed by a lower pressing member to deform the elastic member, A drain plug for closing the internal passage of the cylindrical member, and disposed on the lower pressing member, when the drain plug is inserted into the internal passage of the cylindrical 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 provided on the cylindrical member, and the lower pressing member is provided with a projection for engaging with the concave portion of the engaging member, and the lower pressing member is rotated in a predetermined direction. The lower pressing plate is engaged with the engaging member by a configuration in which the recess formed in the engaging portion and the projection of the lower pressing member are engaged so that the drain plug is not dropped from the cylindrical member. 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。In the drain opening / closing device of the fluid pump device according to the present invention, a concave portion is formed at a position opposite to a position where the concave portion is formed on the engaging member, and the lower pressing member is moved in a predetermined direction or In any case of rotating in the opposite direction, the recess is engaged with the projection of the lower pressing member so that the drain plug does not drop from the cylindrical 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 concave portion is used also at a position facing the position where the concave portion is formed,
In any case where the lower pressing member is rotated in a predetermined direction or the opposite direction, the projection of the lower pressing member is
Engagement with any one of the two concave portions of the engagement member makes it possible to reliably prevent the drain plug from dropping from the tubular member. Therefore, it is possible to improve the operability in both the case of closing the drain and the case of 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 Hereinafter, embodiments of the present invention will be shown and features thereof will be described 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 for 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. FIG. 4A is a sectional view showing a state before the drain plug is inserted into the cylindrical member, and FIG. 4B is a view showing a configuration of the drain opening / closing device after the drain plug is inserted into the cylindrical member. It is 2A-A sectional drawing.
【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 according to this embodiment is shown in FIG.
As shown in FIG. 1, a concrete pump B is mounted on a rear part of a vehicle body A, and is used in a concrete pump truck E in which a hopper device D including a hopper H is mounted on a hopper support C disposed at a rear part of the vehicle body A. It is what is being done. That is, this drain opening / closing device is shown in FIGS.
As shown in FIG. 1, a tubular member (cylindrical member) 2 integrally formed with the discharge pipe 1 and a tubular member are provided at the bottom of an installation target (here, a discharge pipe attached to the bottom of the hopper H) 1. 2,
The main part is housed in the internal passage 2a functioning as a drain, and is elastically deformed so that the internal passage 2a
Elastic member 3 that tightly seals the internal passage 2a in close contact with the inner wall of the
An upper pressing plate (upper pressing member) 4 disposed on the upper surface side of the elastic member 3; a rod portion 5 formed integrally with the upper pressing plate 4 and having a threaded outer peripheral surface; 3, the elastic member 3 is pressed from above and below in cooperation with the upper pressing plate 4, and the elastic member 3 is elastically deformed to adhere to the inner peripheral surface of the internal passage 2a of the tubular member 2. A lower pressing plate (lower pressing member) 6 to be screwed and a portion of the rod portion 5 exposed on the lower surface side of the lower pressing member 6 are screwed, and rotated in a predetermined direction to be tightened. A nut (screw member) 7 for pressing against the elastic member 3 is provided. Note that a lever 7a is attached to the nut 7 so that it can be easily rotated by hand. Then, in the drain opening and closing device P, the elastic member 3 described above, the upper pressing plate 4, the rod portion 5 and the nut 7, such as a lower pressing plate 6 constitutes the drain plug P 0. Also, the rod portion 5
The elastic member 3 is drawn downward through a through hole 3 a formed on 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 this embodiment, the rod 5 and the nut 7 are connected to the elastic member 3.
, 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 periphery 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 which can be engaged with the lower pressing plate 6 is formed in a 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。As shown in FIGS. 5 and 6, the lower pressing plate 6 engages with the concave portion 11 of the engaging member 12 when rotated in a predetermined position around the predetermined direction. The one provided with the projection 6a and the other projection 6b that is in contact with the side 22 of the engaging member 12 where the recess 11 is not formed when rotated in the opposite direction is 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
Is attached to the discharge pipe 1 to be disposed via the tubular member 2, the drain plug P 0 is placed in the internal passage 2 a of the tubular member 2 as shown in FIGS. 5. Insert the nut 7 with one hand from the lower side of the lower pressing plate 6 using the arrow X in FIG.
Is rotated in the direction shown by the arrow, the lower pressing plate 6 rotates together with the nut 7 so that the protrusion 6 a
Engages 1, drain plug P 0 is held in the discharge pipe 1 via the cylindrical member 2 (Figure 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 comes into close contact with the inner peripheral surface of the internal passage 2a of the tubular member 2, so that 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 washing wastewater is discharged after washing the inside of the hopper H with water, first, the nut 7 is rotated in the direction indicated by the arrow Y in FIG. When the nut 7 is rotated in the direction of arrow Y in this manner, the elastic member 3 gradually returns to the original shape, the lower pressing plate 6 rotates together with the nut 7, and the other protrusion 6b is Recess 1
Abutment is made on the side 22 on which the concave portion is not formed, opposite to the side 21 on which the side 1 is formed, and its rotation is prevented (FIG. 6). Then, when the nut 7 is further rotated, FIG.
As shown in (b), the elastic member 3 returns to the original shape,
A gap is formed between the inner peripheral surface of the inner passage 2a of the tubular member 2, together with the drain plug P 0 is removed from the tubular member 2, such as washing waste liquid 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 in the fluid pump device of the above embodiment, the projection 6 engaging with the concave portion 11 of the engagement member 12 is provided at a predetermined position around the lower pressing plate 6.
a and 6b are provided, and the engaging member 12 having the concave portion 11 is attached to the cylindrical member 2. For example, the lower pressing plate 6 is rotated together with the nut 7 in a predetermined direction (the direction in which the nut 7 is tightened). Then, 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, the lower pressing plate 6 is held by the engaging member 12, and the lower pressing plate 6 is by rotating in a predetermined direction (direction loosening the nut 7) together with 7, by solving the engagement between the recess 11 of the projecting portion 6a and the engaging member 12 of the lower pressing plate 6 by operating the one hand, drain plug P 0
Can be released from the cylindrical member 2, and the work of mounting 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。In the above embodiment, the case where the drain opening / closing device P is attached to the bottom of the discharge pipe 1 has been described. However, the drain opening / closing device of the present invention is not limited to the bottom of the discharge pipe, but may be used for the casing of the concrete pump. It can also be attached to the bottom or the bottom of a hopper. In addition, there is no particular limitation on the number of drain opening / closing devices that can be attached to the bottom of a discharge pipe, a concrete pump casing, a hopper, or the like, and a single drain opening / closing device may be provided. A 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-described embodiment, the case where the tubular member 2 is formed integrally with the installation target (discharge pipe) 1 has been described. However, there is no particular restriction on the arrangement of the tubular member. Alternatively, the tubular member may be formed separately from the object to be disposed such as the discharge pipe, and this may be attached to the object to be disposed 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 concave portion 11 is provided only on one side 21 of the engaging member 12 has been described. However, as shown in FIG. It is also possible to adopt a configuration in which the concave portion 11a is provided. In this case, the projections 6a and 6b of the lower pressing plate 6 are connected to the two engaging members 12 regardless of whether the lower pressing plate 6 is rotated in a predetermined direction or the opposite direction. one of the recesses 11 and engaged with any of 11a, drain plug P 0 becomes possible to reliably prevent the falling from the tubular member 2. Therefore, the case where 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 the case where the nut 7 is rotated together with the lower pressing plate 6 in the opposite direction. Operability can be improved in both cases where P 0 is removed 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 embodiment in other respects, but relates to the shape of the cylindrical 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 in the fluid pump device of the present invention, the engaging member having the concave portion is disposed on the cylindrical member and is engaged with the predetermined position around the lower pressing member. A protrusion is provided for engaging the recess of the member, and when 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 to form the drain plug. Since the lower pressing plate is held so as not to drop from the tubular member, the projection of the lower pressing plate is rotated by rotating the lower pressing plate in a predetermined direction (for example, a direction of tightening the screwing member) together with the screwing member. The lower pressing plate can be reliably 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 operation of attaching the drain opening / closing device can be facilitated, 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。In the case where the engaging member having the concave portion is used at a position opposite to the position where the concave portion is formed, the case where the lower pressing member is rotated in a predetermined direction or the opposite direction is used. In any case, the projection of the lower pressing member is engaged with one of the two concave portions of the engagement member, and it is possible to reliably prevent the drain plug from dropping from the tubular member. . Therefore, the case where the drain plug is attached to the cylindrical member by rotating the screwing member in the predetermined direction together with the lower pressing member, and the case where the drain plug is cylindrically rotated by rotating the screwing member together with the lower pressing member in the opposite direction. Operability in both cases of detaching from the member can be improved.
【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 view 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 the bottom of a discharge pipe provided in a hopper of a concrete pump truck.
【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 the structure of a drain plug included in 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 a drain plug is inserted into a cylindrical member, and FIG. 4B is a view showing a configuration of a drain opening / closing device after the drain plug is inserted into the cylindrical member. It is A sectional drawing.
【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 a projection of a lower pressing member (plate) constituting the drain opening / closing device according to the embodiment of the present invention is engaged with a concave portion of an 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 constituting the drain opening and closing device according to the embodiment of the present invention is in contact with the side of the engagement member opposite to the side where the recess is formed; It 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 constituting the drain opening / closing device according to the embodiment of the present invention is deformed and is brought 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, using an engaging member having a different configuration.
【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 constituting a conventional drain opening / closing device is deformed and is brought into close contact with the inner peripheral surface of a 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DESCRIPTION OF SYMBOLS 1 Arrangement object (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 the other projections 7 nut (screw member) 7a lever 11 recess 11a other recess 12 Write sides 22 recess engagement member 21 recess is formed is not formed side P drain switchgear P 0 drain plug
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。A fluid pump; a hopper for supplying fluid to the fluid pump; and a discharge pipe disposed 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 provided at the bottom of the fluid pump, hopper, or discharge pipe and having an internal passage functioning as a drain, and an engaging member fixed to the tubular member and having a concave portion, A drain plug inserted into the tubular member and closing the internal passage of the tubular member by pressing the lower pressing member to deform the elastic member; and a drain plug disposed on the lower pressing member, When the plug is inserted into the internal passage of the tubular member, a projection that engages with the concave portion of the engagement member and can hold the drain plug is provided. 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 method according to claim 1, wherein a recess is formed at a position opposite to a position at which the recess is formed on the engaging member, and the lower pressing member is rotated in a predetermined direction or a direction opposite thereto. 2. The device according to claim 1, wherein the recess engages with the projection of the lower pressing member to prevent the drain plug from dropping from the tubular member.
A drain opening / closing device in the fluid pump device described in the above.
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 true JPH10148187A (en) | 1998-06-02 |
| JP3420674B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6495991B2 (en) | 1999-05-14 | 2002-12-17 | Matsushita Electric Industrial Co., Ltd. | Charge control apparatus for controlling a charge of a battery pack based upon refrigerant temperature, battery temperature and ambient temperature |
-
1996
- 1996-11-19 JP JP32462796A patent/JP3420674B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6495991B2 (en) | 1999-05-14 | 2002-12-17 | Matsushita Electric Industrial Co., Ltd. | Charge control apparatus for controlling a charge of a battery pack based upon refrigerant temperature, battery temperature and ambient temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3420674B2 (en) | 2003-06-30 |
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