JPH11201298A - Inner screw gate valve - Google Patents
Inner screw gate valveInfo
- Publication number
- JPH11201298A JPH11201298A JP234598A JP234598A JPH11201298A JP H11201298 A JPH11201298 A JP H11201298A JP 234598 A JP234598 A JP 234598A JP 234598 A JP234598 A JP 234598A JP H11201298 A JPH11201298 A JP H11201298A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve element
- female screw
- valve body
- screw 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.)
- Pending
Links
Landscapes
- Sliding Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内ネジ式仕切弁に
関し、特に、内ネジ式仕切弁における高さ寸法を低くす
るための構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internally threaded gate valve, and more particularly to a structure for reducing the height of an internally threaded gate valve.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】各種管
路を開閉するための弁として広く用いられている内ネジ
式仕切弁は、図２に示すように、本体部１に設けた弁座
２の上方に弁体収容部３を連設し、弁体４を弁体収容部
内と弁座部分とに移動させることによって管路５の開閉
を行うように形成されている。このような内ネジ式仕切
弁における弁体４の上下方向の移動は、弁体収容部３を
貫通して設けた弁棒６と弁体４の上部に設けた雌ネジ部
７とを螺合させ、弁棒６を回転させることにより行われ
ている。2. Description of the Related Art An internally threaded gate valve which is widely used as a valve for opening and closing various pipelines is provided with a valve seat provided on a main body 1 as shown in FIG. The valve body housing 3 is connected to the upper part of the valve body 2, and the pipe 5 is opened and closed by moving the valve body 4 into the valve body housing and the valve seat. The vertical movement of the valve body 4 in such an internally threaded gate valve is achieved by screwing a valve rod 6 provided through the valve body housing 3 and a female threaded portion 7 provided above the valve body 4. And the valve stem 6 is rotated.
【０００３】一方、従来の埋設管路は、その土被りが１
２００ｍｍに設定されているため、仕切弁においても、
土被り１２００ｍｍに対応した形状，寸法で製作されて
きている。しかし、最近、施工コストの削減を図るため
に、埋設管路の土被りを６００〜８００ｍｍ程度にする
ことが計画されている。On the other hand, the conventional buried pipeline has an earth covering of one.
Because it is set to 200 mm, even in the gate valve,
It has been manufactured in a shape and size corresponding to 1200 mm of overburden. However, recently, in order to reduce the construction cost, it is planned to reduce the earth covering of the buried pipeline to about 600 to 800 mm.
【０００４】ところが、前述のように、内ネジ式仕切弁
においては、埋設管路に接続される本体部１の上方に弁
体収容部３が連設しており、さらに、弁体収容部３の上
方に弁棒６及び該弁棒６の先端に装着されるキャップ８
が突出しているため、埋設管路の土被りが薄くなるのに
対応させて高さ寸法を低くする必要が生じてくる。However, as described above, in the internally threaded gate valve, the valve housing 3 is continuously provided above the main body 1 connected to the buried conduit, and the valve housing 3 is further connected to the main body 1. Above the valve stem 6 and a cap 8 attached to the tip of the valve stem 6
, The height of the buried pipeline needs to be reduced in response to the decrease in the earth covering.
【０００５】そこで本発明は、従来の内ネジ式仕切弁の
構造を大きく変えることなく、高さ寸法を低くすること
ができる内ネジ式仕切弁を提供することを目的としてい
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide an internal threaded gate valve whose height can be reduced without greatly changing the structure of a conventional internal threaded gate valve.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の内ネジ式仕切弁は、弁座を有する本体部の
上方に弁体収容部を連設し、該弁体収容部を貫通して設
けた弁棒と弁体上部に設けた雌ネジ部とを螺合させ、弁
棒を回転させることにより前記弁体を弁体収容部内と弁
座部分とに上下動させて管路の開閉を行う内ネジ式仕切
弁において、前記弁体の雌ネジ部を、弁体弁座部の最上
部裏面部分に設けるとともに、弁体が閉じ位置にあると
きの前記雌ネジ部に前記弁棒の下端が螺合するように形
成したことを特徴としている。In order to achieve the above object, an internal threaded gate valve according to the present invention has a valve body accommodating portion connected above a main body portion having a valve seat. A valve stem penetrating and a female thread portion provided on the upper part of the valve body are screwed together, and the valve stem is rotated to move the valve body up and down in the valve body accommodating portion and the valve seat portion, thereby forming a pipe line. In the internal thread type gate valve for opening and closing the valve, the female screw portion of the valve body is provided on the uppermost back surface portion of the valve body valve seat portion, and the female screw portion is provided on the female screw portion when the valve body is in the closed position. It is characterized in that the lower end of the rod is formed to be screwed.
【０００７】[0007]
【発明の実施の形態】図１は本発明の仕切弁の一形態例
を示す一部断面図である。この内ネジ式仕切弁は、従来
と同様に、本体部１１の弁座１２に対応する部分の上方
に弁体収容部１３を連設し、弁棒１４の回転によって弁
体１５を弁体収容部内と弁座部分とに上下動させること
により、管路１６の開閉を行うように形成されている。FIG. 1 is a partial sectional view showing an embodiment of a gate valve according to the present invention. In the same manner as in the prior art, this inner threaded gate valve has a valve body accommodating portion 13 continuously provided above a portion corresponding to the valve seat 12 of the main body portion 11, and the valve body 15 is accommodated by rotating the valve rod 14. The pipe 16 is opened and closed by vertically moving the inside and the valve seat.
【０００８】弁体１５は、その中央部に弁棒１４を挿通
するための通孔１７を有しており、該通孔１７の上端部
に、弁棒１４に螺合する雌ネジ部材１８が設けられてい
る。この雌ネジ部材１８の位置は、弁体１５における弁
座１２との当接部、即ち弁体弁座部１９の最上部裏面部
分であって、弁体１５の上部に設けた横方向（図におい
て紙面に垂直な方向）の溝内に挿入されて固定されてい
る。一方の弁棒１４は、図１に示すように、弁体１５が
閉じ位置にある状態において、弁棒１４の下端が雌ネジ
部材１８に螺合するように形成されている。The valve body 15 has a through hole 17 at the center thereof for inserting the valve rod 14, and a female screw member 18 screwed to the valve rod 14 is provided at the upper end of the through hole 17. Is provided. The position of the female screw member 18 is a contact portion of the valve body 15 with the valve seat 12, that is, the uppermost back surface portion of the valve body valve seat portion 19, and a lateral direction (FIG. (In the direction perpendicular to the plane of the paper). As shown in FIG. 1, one valve stem 14 is formed such that the lower end of the valve stem 14 is screwed into the female screw member 18 when the valve element 15 is in the closed position.
【０００９】言い換えれば、弁棒１４は、該弁棒１４が
弁座１２の内周の流路（管路１６）内に突出しない範囲
でできるだけ下方に位置させ、下端が弁座１２の内周縁
と面一か、僅かに上方に位置するように形成するととも
に、前記雌ネジ部材１８は、弁体１５の閉じ位置におい
て弁棒１４の下端に螺合するように、その位置を設定し
ている。In other words, the valve stem 14 is positioned as low as possible within a range where the valve stem 14 does not protrude into the flow path (the pipe 16) on the inner periphery of the valve seat 12, and the lower end is located at the inner peripheral edge of the valve seat 12. The female screw member 18 is positioned so as to be screwed with the lower end of the valve rod 14 at the closed position of the valve body 15 while being formed so as to be flush with or slightly above. .
【００１０】このように形成することにより、弁棒１４
と雌ネジ部材１８との螺合位置を、弁棒１４が管路１６
内に突出しない範囲で従来よりも下げることができるの
で、弁体１５の最下端から最上部までの高さ寸法を小さ
くすることができる。したがって、全開状態の弁体１５
を収納するための弁体収容部１３の高さ寸法も小さくす
ることができるので、内ネジ式仕切弁の全高を従来より
も低くすることができる。[0010] By forming in this manner, the valve stem 14
The valve rod 14 is connected to the pipe 16
Since it can be lowered as far as it does not protrude inward, the height from the lowermost end to the uppermost part of the valve body 15 can be reduced. Therefore, the valve body 15 in the fully opened state
The height of the valve body accommodating portion 13 for accommodating the valve can be reduced, so that the overall height of the internally threaded gate valve can be made lower than before.
【００１１】したがって、開栓器が係合するキャップ２
０の位置を、従来より低くすることができるので、埋設
管路の土被りが薄くなっても十分に対応することができ
る。また、弁棒１４を流路内に突出させないようにした
ので、流路抵抗となることがなく、管路内の清掃や点検
も、従来と同様にして行うことができる。さらに、弁全
体の小型化や軽量化も達成でき、製造コストの低減も図
れる。Therefore, the cap 2 with which the stopper is engaged
Since the position of 0 can be made lower than before, it is possible to sufficiently cope with a thin earth covering of the buried pipeline. In addition, since the valve stem 14 is prevented from protruding into the flow path, there is no flow path resistance, and cleaning and inspection of the pipe can be performed in the same manner as in the related art. Further, the size and weight of the entire valve can be reduced, and the manufacturing cost can be reduced.
【００１２】[0012]
【発明の効果】以上説明したように、本発明の内ネジ式
仕切弁によれば、全高、特に、管路上面からの突出高さ
を小さくすることができるので、埋設管路の土被りが８
００ｍｍ程度になっても十分に対応することができる。As described above, according to the internally threaded gate valve of the present invention, the overall height, in particular, the protruding height from the upper surface of the pipeline can be reduced, so that the earth covering of the buried pipeline is reduced. 8
Even if it becomes about 00 mm, it can sufficiently cope.
【図１】 本発明の一形態例を示す内ネジ式仕切弁の一
部断面図である。FIG. 1 is a partial cross-sectional view of an internally threaded gate valve showing one embodiment of the present invention.
【図２】 従来の内ネジ式仕切弁の一例を示す一部断面
図である。FIG. 2 is a partial cross-sectional view showing an example of a conventional internal threaded gate valve.
【符号の説明】 １１…本体部、１２…弁座、１３…弁体収容部、１４…
弁棒、１５…弁体、１６…管路、１７…通孔、１８…雌
ネジ部材、１９…弁体弁座部、２０…キャップ[Explanation of Signs] 11: Main body, 12: Valve seat, 13: Valve housing, 14 ...
Valve stem, 15: valve element, 16: conduit, 17: through hole, 18: female screw member, 19: valve element valve seat, 20: cap
Claims (1)
を連設し、該弁体収容部を貫通して設けた弁棒と弁体上
部に設けた雌ネジ部とを螺合させ、弁棒を回転させるこ
とにより前記弁体を弁体収容部内と弁座部分とに上下動
させて管路の開閉を行う内ネジ式仕切弁において、前記
弁体の雌ネジ部を、弁体弁座部の最上部裏面部分に設け
るとともに、弁体が閉じ位置にあるときの前記雌ネジ部
に前記弁棒の下端が螺合するように形成したことを特徴
とする内ネジ式仕切弁。1. A valve body accommodating portion is continuously provided above a main body portion having a valve seat, and a valve stem provided through the valve body accommodating portion and a female screw portion provided on an upper portion of the valve body are screwed together. An internal threaded partition valve that opens and closes a pipeline by moving the valve body up and down in a valve body housing portion and a valve seat portion by rotating a valve stem. An internal threaded gate valve provided on the uppermost back surface of the body valve seat portion and formed so that a lower end of the valve stem is screwed into the female thread portion when the valve body is in a closed position. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234598A JPH11201298A (en) | 1998-01-08 | 1998-01-08 | Inner screw gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234598A JPH11201298A (en) | 1998-01-08 | 1998-01-08 | Inner screw gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11201298A true JPH11201298A (en) | 1999-07-27 |
Family
ID=11526703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP234598A Pending JPH11201298A (en) | 1998-01-08 | 1998-01-08 | Inner screw gate valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11201298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015081621A (en) * | 2013-10-21 | 2015-04-27 | 岡山市 | Gate valve cover removal method, valve removal method and valve cover removal attachment |
-
1998
- 1998-01-08 JP JP234598A patent/JPH11201298A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015081621A (en) * | 2013-10-21 | 2015-04-27 | 岡山市 | Gate valve cover removal method, valve removal method and valve cover removal attachment |
| WO2015059939A1 (en) * | 2013-10-21 | 2015-04-30 | 岡山市 | Method for removing valve cover of partition valve, valve removal method, attachment for removing valve cover, and partition valve |
| US9759333B2 (en) | 2013-10-21 | 2017-09-12 | Okayama City | Gate valve bonnet removal method, valve removal method, attachment for removing bonnet, and gate valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1367305A3 (en) | Half ball valve | |
| JP5989311B2 (en) | Buried gas plug | |
| JPH11201298A (en) | Inner screw gate valve | |
| JP5150222B2 (en) | Built-in gas stove | |
| JPH11182696A (en) | Sluice valve | |
| JPS589747Y2 (en) | water supply device | |
| JPH11182697A (en) | Sluice valve | |
| JPS6312287Y2 (en) | ||
| JPS6143007Y2 (en) | ||
| JPS6010969U (en) | Gas tank with overflow prevention valve | |
| JPS6314153Y2 (en) | ||
| JPH11304012A (en) | Sluice valve | |
| JPS6132674U (en) | ball valve | |
| JPH11182705A (en) | Gate valve | |
| JPS62125123A (en) | Drain cock | |
| JPS6312289Y2 (en) | ||
| JPS59123775U (en) | Air venting devices such as gate valves | |
| JPS6336212Y2 (en) | ||
| JPS60156273U (en) | Water faucet with automatic opening/closing valve for use in water tanks | |
| JPH0635742U (en) | Ball stopcock with throttle valve | |
| JPH11280947A (en) | Drive shaft part structure of valve | |
| JPH11158969A (en) | Valve fixing structure to tank | |
| JPS60158072U (en) | Installation device for valve stems and discs in butterfly valves | |
| JP2016191471A (en) | Gas supply system and method for constructing the same | |
| JP2001349647A (en) | Three-way control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Effective date: 20041129 Free format text: JAPANESE INTERMEDIATE CODE: A621 |
|
| A977 | Report on retrieval |
Effective date: 20071101 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071106 |
|
| A02 | Decision of refusal |
Effective date: 20080311 Free format text: JAPANESE INTERMEDIATE CODE: A02 |