JPS6123973Y2 - - Google Patents
Info
- Publication number
- JPS6123973Y2 JPS6123973Y2 JP1980017720U JP1772080U JPS6123973Y2 JP S6123973 Y2 JPS6123973 Y2 JP S6123973Y2 JP 1980017720 U JP1980017720 U JP 1980017720U JP 1772080 U JP1772080 U JP 1772080U JP S6123973 Y2 JPS6123973 Y2 JP S6123973Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- piston
- gas
- hole
- spring
- 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
Links
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
Description
【考案の詳細な説明】
この考案はガス管の自動閉弁装置に関するもの
である。[Detailed description of the invention] This invention relates to an automatic valve closing device for gas pipes.
従来、ガス管の自動閉弁機構としてスプリング
弁軸と重りとを組合せた各種装置が開発されてい
るが、管体内のガスの流動圧に抗して弁軸を作動
させるためにはスプリングの弾力を強圧にしなけ
ればならず、該スプリングの弾力が大きくなると
弁軸を開弁保持させるため重りの荷重が大とな
り、或いは弁軸と係合させた爪が変型し易く、脱
係作動がスムーズにゆかないと共に弁軸のセツト
にも手間を要する等の欠点があつた。 Conventionally, various devices that combine a spring valve shaft and a weight have been developed as automatic valve closing mechanisms for gas pipes, but in order to operate the valve shaft against the flow pressure of gas inside the pipe, the elasticity of the spring is If the elasticity of the spring increases, the load of the weight will increase to hold the valve shaft open, or the pawl that engages with the valve shaft will be easily deformed, making it difficult to disengage smoothly. There were drawbacks such as the difficulty in setting the valve stem and the fact that it took time and effort to set the valve stem.
この様な欠点を解消する目的において、本考案
は、弁軸の作動時にスプリングの弾力並びに管体
内のガス圧を利用して弁軸をスムーズに動作させ
る様になしたガス自動閉弁装置であつて、スプリ
ングの弾力を強圧になす必要がなく、また弁軸を
ガス開弁保持する爪の脱着も容易で弁軸を的確に
作動させ、地震発生時におけるガス洩れを防止し
得ることを特徴とするものである。 In order to eliminate such drawbacks, the present invention is an automatic gas valve closing device that uses the elasticity of a spring and the gas pressure inside the tube when the valve shaft is operated to smoothly operate the valve shaft. Therefore, there is no need to make the elasticity of the spring strong, and the claw that holds the valve stem open for gas can be easily attached and removed, allowing the valve stem to operate accurately and preventing gas leakage in the event of an earthquake. It is something to do.
以下、実施例図により本考案の構成を説明す
る。 Hereinafter, the configuration of the present invention will be explained with reference to embodiment figures.
中心にガス通流孔１を開孔した肉厚の管体２の
中央位置に上面より下面へ連通した孔を開孔して
下面を閉塞したシリンダー３を嵌挿固定し、該シ
リンダー３を管体２のガス通流孔１と連通した孔
４，４′を開孔し、シリンダー３内に孔４，４′を
閉弁し得るピストン５を嵌挿し、孔４と対向する
ピストン５の下部周側面に切欠穴６を設け、シリ
ンダー３の正面と背面との中央高さ位置に枢軸
７，７′を突設し、中央にリンク８を設けた槓杆
９の１端に重り１０を固定すると共に他端に受皿
１１を固定し、該槓杆９のリンク８の前部と後部
とをシリンダー３の枢軸７，７′に枢着し、シリ
ンダー３の正面中央の下方位置に竪長孔１２を開
孔し、ピストン５に固定した軸片１３を長孔１２
より正面へ突出させ、槓杆９の左側部上面よりシ
リンダー３へ向つて爪杆１４を突設し、該爪杆１
４先端が嵌入し得る小孔１５をシリンダー３側面
に開孔すると共にシリンダー３内で孔４，４′が
連通する様にピストン５を上昇させて爪杆１４で
係止するための係合溝１６を開溝し、シリンダー
３の上端に下面にスプリング１７を突設したネジ
蓋１８を装着してピストン５上面をスプリング１
７で押圧し、管体２のガス流入側においてガス通
流孔１に開閉弁１９を連通し、該開閉弁１９に連
通させたパイプ２０の他端をシリンダー３の上端
部に連通させ、開閉弁１９の動作杆１９′の上端
と槓杆９の受皿寄り位置とを連杆２１で連係さ
せ、槓杆９の他端の受皿１１に重り１０とバラン
スし得る重り１０′を載着したガス自動閉弁機構
を構成するものである。 A cylinder 3 with a hole that communicates from the upper surface to the lower surface and whose lower surface is closed is inserted and fixed in the center of a thick-walled tube 2 that has a gas flow hole 1 in the center, and the cylinder 3 is inserted into the tube. Holes 4, 4' communicating with the gas flow holes 1 of the body 2 are opened, a piston 5 capable of closing the holes 4, 4' is inserted into the cylinder 3, and a lower part of the piston 5 facing the hole 4 is inserted. A notched hole 6 is provided on the circumferential side, pivots 7 and 7' are provided protrudingly at the center height position between the front and back surfaces of the cylinder 3, and a weight 10 is fixed to one end of a ram 9 having a link 8 in the center. At the same time, a saucer 11 is fixed to the other end, the front and rear parts of the link 8 of the lever 9 are pivotally connected to the pivots 7 and 7' of the cylinder 3, and a vertical hole 12 is formed at a lower position in the front center of the cylinder 3. A hole is opened and the shaft piece 13 fixed to the piston 5 is inserted into the elongated hole 12.
A pawl rod 14 is provided to protrude more toward the front, and protrudes from the upper surface of the left side of the ram 9 toward the cylinder 3.
A small hole 15 into which the tip of the piston 5 can fit is formed on the side surface of the cylinder 3, and an engagement groove for raising the piston 5 and locking it with the pawl rod 14 so that the holes 4 and 4' communicate with each other inside the cylinder 3. 16 is opened, a screw cap 18 with a spring 17 protruding from the bottom surface is attached to the upper end of the cylinder 3, and the upper surface of the piston 5 is attached to the spring 1.
7, the opening/closing valve 19 is connected to the gas flow hole 1 on the gas inflow side of the tube body 2, and the other end of the pipe 20 communicated with the opening/closing valve 19 is connected to the upper end of the cylinder 3, and the opening/closing is performed. The upper end of the operating rod 19' of the valve 19 and the position near the saucer of the ram 9 are linked by a connecting rod 21, and a weight 10' that can balance with the weight 10 is mounted on the saucer 11 at the other end of the ram 9. It constitutes a valve mechanism.
実施例としては、ガス自動閉弁機構をケーシン
グ２２内に内装して管体２の両端をケーシング２
２の両端より突出させ、シリンダー３の上端をケ
ーシング２２の上端開口の枠杆２３に支持させ、
該枠杆２３に受皿１１に載着した重り１０′の紐
２４を結着し、ケーシング２２の上端開口に上蓋
２５をねじ込みし、ケーシング２２の正面開口に
正面蓋２５′をネジで固締してガス自動閉弁装置
２６となすものである。 As an example, a gas automatic valve closing mechanism is installed inside the casing 22, and both ends of the pipe body 2 are connected to the casing 2.
2, and the upper end of the cylinder 3 is supported by the frame rod 23 of the upper end opening of the casing 22,
The string 24 of the weight 10' placed on the saucer 11 is tied to the frame rod 23, the top cover 25 is screwed into the upper end opening of the casing 22, and the front cover 25' is secured to the front opening of the casing 22 with screws. This is a gas automatic valve closing device 26.
つぎに、実施例図により本考案の作用効果を説
明する。 Next, the effects of the present invention will be explained with reference to embodiment figures.
本考案のガス自動閉弁機構においては受皿１１
に重り１０′を載着すると枢軸７，７′を支点とし
て左右の重り１０，１０′によるモーメントがバ
ランスして槓杆９は水平となり爪杆１４の先端は
シリンダー３の小孔１５に嵌入し、次にシリンダ
ー３の下端まで下降していたピストン５をその軸
片１３を把持してスプリング１７の弾力に抗しな
がら上昇させ、ピストン５の係合溝１６に爪杆１
４先端を嵌合させてピストン５を係止させると、
ピストン５の下端は孔４，４′より上昇して管体
２の左右のガス通流孔１はシリンダー３を介して
連通するもので、その状態でガスを管体２の右側
端より左側端へと通流させるものである。そして
地震発生時にはその振動により重り１０′が受皿
１１より落下し、槓杆９が重り１０のモーメント
でもつて正面視反時計方向へ回転することにより
爪杆１４の先端はピストン５の係合溝１６並びに
小孔１５より脱去され、槓杆９の受皿１１側にお
いては槓杆９が上昇回転することにより連杆２１
に開閉弁１９の動作杆１９′が牽引されて開弁
し、ガス通流孔１とパイプ２０とが連通すること
によりパイプ２０へ分流したガスがシリンダー３
の上端部へと流入し、スプリング１７と共にピス
トン５を上方より押圧して下降させるもので、左
側の孔４′はピストン５の外周面で閉塞されると
共に右側の孔４はピストン５の切欠穴６と対向
し、該切欠穴６面にガス圧が作用しながら管体２
の右側より流入するガスを完全に遮断するもので
ある。従つて、地震発生時にはバイパス用のパイ
プ２０でもつてシリンダー３の上端部へガスを供
給してピストン５の上下面に作用するガス圧が相
殺されると共にピストン５の切欠穴６が管体２の
ガス通流孔１と連通して流入側のガス圧を減圧さ
せるため、ピストンに加わるガス圧による抵抗が
極減されるものであり、逆にピストン５を押圧す
るスプリング１７の弾力を強圧になす必要がな
く、槓杆９の爪杆１４のピストンの溝１６に対す
る脱着も容易で、ピストン５を的確に作動させな
がら管体２のガス通流孔１を閉弁させ得るもので
ある。そして、スプリング１７の弾力が強圧でな
いため、ピストン５の上昇セツトも容易で、更に
重り１０，１０′も荷重を大きくする必要もない
ものである。 In the gas automatic valve closing mechanism of the present invention, the saucer 11
When the weight 10' is placed on the pivot shafts 7, 7' as fulcrums, the moments caused by the left and right weights 10, 10' are balanced, and the lever 9 becomes horizontal, and the tip of the claw rod 14 fits into the small hole 15 of the cylinder 3. Next, the piston 5, which had descended to the lower end of the cylinder 3, is grasped by its shaft piece 13 and raised while resisting the elasticity of the spring 17.
When the tips of 4 are fitted and the piston 5 is locked,
The lower end of the piston 5 rises above the holes 4 and 4', and the left and right gas flow holes 1 of the tube 2 communicate with each other via the cylinder 3. In this state, the gas is transferred from the right end of the tube 2 to the left end. It is what allows the flow to flow. When an earthquake occurs, the vibration causes the weight 10' to fall from the tray 11, and the moment of the weight 10 causes the lever 9 to rotate counterclockwise when viewed from the front, so that the tip of the pawl rod 14 aligns with the engagement groove 16 of the piston 5. It is removed from the small hole 15, and on the saucer 11 side of the ram 9, the ram 9 rotates upward, and the connecting ram 21 is removed.
The operating rod 19' of the on-off valve 19 is pulled to open the valve, and the gas passage hole 1 and the pipe 20 communicate with each other, so that the gas diverted to the pipe 20 flows into the cylinder 3.
It flows into the upper end and presses the piston 5 from above together with the spring 17 to lower it.The hole 4' on the left side is closed by the outer peripheral surface of the piston 5, and the hole 4 on the right side is a notch hole in the piston 5. 6, and while gas pressure is acting on the surface of the notch hole 6, the pipe body 2
This completely blocks gas flowing in from the right side. Therefore, in the event of an earthquake, gas is supplied to the upper end of the cylinder 3 through the bypass pipe 20, so that the gas pressure acting on the upper and lower surfaces of the piston 5 is offset, and the notch hole 6 of the piston 5 is inserted into the tube body 2. Since it communicates with the gas flow hole 1 and reduces the gas pressure on the inflow side, the resistance due to the gas pressure applied to the piston is extremely reduced, and conversely, the elasticity of the spring 17 that presses the piston 5 is made strong. This is not necessary, and the pawl 14 of the ram 9 can be easily attached to and removed from the groove 16 of the piston, and the gas passage hole 1 of the tube body 2 can be closed while the piston 5 is operated accurately. Further, since the elasticity of the spring 17 is not strong, it is easy to raise the piston 5, and there is no need to increase the load of the weights 10, 10'.
実施例においては、ガス自動閉弁機構をケーシ
ング２２に内装して上面に上蓋２５を正面に正面
蓋２５′を設けるものであり、上蓋２５や正面蓋
２５′を取外して重り１０′の受皿１１へのセツ
ト、並びに軸片１３によるピストン５の上昇セツ
トをなした後に再び上蓋２５、正面蓋２５′を装
着させるもので、ガス自動閉弁機構より少々ガス
が洩れても外部への漏洩を防止し得る等、前記し
た様な顕著な諸効果を奏するものである。 In this embodiment, a gas automatic valve closing mechanism is housed in a casing 22, and a top lid 25 is provided on the top surface and a front lid 25' is provided on the front surface. The upper cover 25 and front cover 25' are attached again after the upper cover 25 and the front cover 25' are set after the piston 5 is set upward by the shaft piece 13, thereby preventing leakage to the outside even if a small amount of gas leaks from the gas automatic valve closing mechanism. It is possible to achieve various remarkable effects as described above.
第１図は本考案の実施例に係るガス自動閉弁装
置の正面図、第２図はその一部切欠平面図、第３
図は第１図Ａ−Ａ線断面図、第４図は第２図Ｂ−
Ｂ線断面図、第５図は第４図Ｃ−Ｃ線断面図、第
６図は同じくＤ−Ｄ線断面図である。
１ガス通流孔、２管体、３シリンダー、５ピス
トン、６切欠穴、９槓杆、１０，１０′重り、１
１受皿、１４爪杆、１６係合溝、１９開閉弁、２
０パイプ。
Fig. 1 is a front view of a gas automatic valve closing device according to an embodiment of the present invention, Fig. 2 is a partially cutaway plan view thereof, and Fig. 3 is a partially cutaway plan view thereof.
The figure is a sectional view taken along line A-A in Figure 1, and Figure 4 is a cross-sectional view taken along line A-A in Figure 2.
5 is a sectional view taken along the line C--C in FIG. 4, and FIG. 6 is a sectional view taken along the line DD--D in FIG. 1 gas flow hole, 2 pipe body, 3 cylinder, 5 piston, 6 notch hole, 9 lever, 10, 10' weight, 1
1 saucer, 14 pawl rod, 16 engagement groove, 19 on-off valve, 2
0 pipe.
Claims (1)
上下面に連通した孔を開孔して下面を閉塞したシ
リンダー３を嵌挿固定し、該シリンダー３をガス
通流孔１に連通させ、シリンダー３にピストン５
を嵌挿し、該ピストン５の下部周側面に１方のガ
ス通流孔１と連通し得る切欠穴６を設け、シリン
ダー３の中央高さ位置に枢着した槓杆９の１端に
重り１０を、他端に受皿１１を固定して重り１
０′を載着し、槓杆９の重り１０側より爪杆１４
をシリンダー３へ突設してシリンダー３に開孔し
た孔よりピストン５の係合溝１６へ係着させてピ
ストン５を支持し、シリンダー３をの上端にスプ
リング１７付のネジ蓋１８を装着してスプリング
でピストン５上端を押圧し、管体２のガス流入側
においてガス通流孔に槓杆９と連係した開閉弁１
９を連通し、該開閉弁１９とシリンダー３上端部
とをパイプ２０で連通させたことを特徴として成
る、ガス自動閉弁装置。 A cylinder 3 whose bottom surface is closed and a hole communicating with the upper and lower surfaces is opened in the center of the tube body 2 which has a gas passage hole 1 in the center is inserted and fixed, and the cylinder 3 is inserted into the gas passage hole 1. Connect piston 5 to cylinder 3.
A cutout hole 6 is provided in the lower circumferential side of the piston 5 to communicate with one of the gas flow holes 1, and a weight 10 is attached to one end of a lever 9 pivoted at the center height position of the cylinder 3. , with the saucer 11 fixed on the other end and the weight 1
0', and push the claw lever 14 from the weight 10 side of the lever 9.
A screw cap 18 with a spring 17 is attached to the upper end of the cylinder 3, and a screw cap 18 with a spring 17 is attached to the upper end of the cylinder 3. The upper end of the piston 5 is pressed by a spring, and an on-off valve 1 connected to a lever 9 is connected to a gas flow hole on the gas inflow side of the pipe body 2.
9 is in communication with the on-off valve 19 and the upper end of the cylinder 3 through a pipe 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980017720U JPS6123973Y2 (en) | 1980-02-12 | 1980-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980017720U JPS6123973Y2 (en) | 1980-02-12 | 1980-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56119067U JPS56119067U (en) | 1981-09-10 |
| JPS6123973Y2 true JPS6123973Y2 (en) | 1986-07-18 |
Family
ID=29614060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980017720U Expired JPS6123973Y2 (en) | 1980-02-12 | 1980-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123973Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51156531U (en) * | 1975-06-09 | 1976-12-13 | ||
| JPS5454926U (en) * | 1977-09-26 | 1979-04-16 |
-
1980
- 1980-02-12 JP JP1980017720U patent/JPS6123973Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56119067U (en) | 1981-09-10 |
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