JP2001132991A - Valve for connecting piping - Google Patents
Valve for connecting pipingInfo
- Publication number
- JP2001132991A JP2001132991A JP31908999A JP31908999A JP2001132991A JP 2001132991 A JP2001132991 A JP 2001132991A JP 31908999 A JP31908999 A JP 31908999A JP 31908999 A JP31908999 A JP 31908999A JP 2001132991 A JP2001132991 A JP 2001132991A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- seal member
- valve body
- pipe connection
- valve stem
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、分離形空気調和機
の室外ユニットに配設され、室内ユニットとの配管接続
に用いられる２方弁や３方弁等の配管接続用弁に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe connection valve such as a two-way valve or a three-way valve which is disposed in an outdoor unit of a separation type air conditioner and is used for connection with an indoor unit.
【０００２】[0002]
【従来の技術】分離形空気調和機の新設工事の際のエア
パージ（配管内の空気の排出）や、引越し等に伴なう移
設工事の際のポンプダウン（室外機への冷媒回収）に
は、配管接続用弁として２方弁や３方弁等が使用され
る。この２方弁および３方弁は、室内ユニットと室外ユ
ニットとの連結パイプを結合し、開閉機構を備える。2. Description of the Related Art For air purging (discharging of air in pipes) at the time of new construction of a separation type air conditioner and pump down (recovery of refrigerant to an outdoor unit) at the time of relocation due to moving, etc. A two-way valve or a three-way valve is used as a pipe connection valve. The two-way valve and the three-way valve connect a connecting pipe between the indoor unit and the outdoor unit, and include an opening / closing mechanism.
【０００３】上記工事を行なう場合には、２方弁および
３方弁の弁棒を駆動して通路を開閉する。このとき、外
気への冷媒の漏れを抑制すべく、２方弁および３方弁の
弁本体と弁棒との間に、通常図６に示すＯリング１０等
のシール部材を設置する。When the above construction is performed, the passages are opened and closed by driving the valve stems of the two-way valve and the three-way valve. At this time, in order to suppress leakage of the refrigerant to the outside air, a seal member such as an O-ring 10 shown in FIG. 6 is usually provided between the valve bodies of the two-way valve and the three-way valve and the stem.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、Ｏリン
グ１０をシール部材として用いた場合、弁棒を駆動した
際にＯリング１０が捩じれて弁本体と弁棒との間に隙間
が生じ、一時的に冷媒が大気中へ放出され、規定の冷媒
量が減少して空気調和機の運転に支障をきたすという問
題があった。However, when the O-ring 10 is used as a seal member, when the valve stem is driven, the O-ring 10 is twisted to form a gap between the valve body and the valve stem. However, there has been a problem that the refrigerant is discharged into the atmosphere, and the specified amount of the refrigerant is reduced, which hinders the operation of the air conditioner.
【０００５】特に、長年使用した空気調和機の移設時の
ポンプダウン作業を行なうときに、Ｏリング１０が捩じ
れてシール性を失うことが散見された。これは、Ｏリン
グ１０自体の形状とともに、長年にわたる冷房または暖
房運転により、固着状態のＯリング１０にヒートショッ
クが繰り返し与えられ、弁棒を駆動した際にＯリング１
０が捩じれ易くなることも要因の１つであると考えられ
る。[0005] In particular, when performing a pump-down operation when relocating an air conditioner that has been used for many years, it has been found that the O-ring 10 is twisted and loses sealing properties. This is because the O-ring 10 in the fixed state is repeatedly given a heat shock by the cooling or heating operation for many years together with the shape of the O-ring 10 itself.
It is considered that one of the factors is that 0 is easily twisted.
【０００６】本発明は、上記のような課題を解決するた
めになされたものである。本発明の目的は、分離形空気
調和機の新設時等に配管接続のために用いられる２方弁
や３方弁等の配管接続用弁において、弁棒を駆動した際
に、弁本体と弁棒との間に設けられたシール部材が捩じ
れてシール性が低下するのを抑制することにある。The present invention has been made to solve the above problems. SUMMARY OF THE INVENTION An object of the present invention is to provide a pipe connection valve such as a two-way valve or a three-way valve used for pipe connection when a separate type air conditioner is newly installed or the like. An object of the present invention is to prevent a seal member provided between the rod and the rod from being twisted to lower the sealing performance.
【０００７】[0007]
【課題を解決するための手段】本発明に係る配管接続用
弁は、分離形空気調和機の室外ユニットに配設され、該
室外ユニットと室内ユニット間の配管接続のために用い
られるものである。そして、該配管接続用弁は、弁本体
と、弁棒と、シール部材とを備える。弁棒は、弁本体内
に設置される。シール部材は、弁本体と弁棒との間に設
置され、弁棒を駆動した際に該シール部材が捩じれるの
を抑制するための複数の突起を有し、外気への冷媒の漏
れを抑制するためのものである。A pipe connection valve according to the present invention is provided in an outdoor unit of a separation type air conditioner and is used for connecting a pipe between the outdoor unit and the indoor unit. . The pipe connection valve includes a valve body, a valve stem, and a seal member. The valve stem is installed in the valve body. The seal member is provided between the valve body and the valve stem, and has a plurality of protrusions for preventing the seal member from being twisted when the valve stem is driven, thereby suppressing leakage of the refrigerant to the outside air. It is for doing.
【０００８】このようにシール部材が複数の突起を有す
ることにより、該複数の突起を弁本体等のシール部材の
周囲に位置する要素に当接させることができる。それに
より、弁棒を駆動した際に、シール部材が捩じれるのを
抑制することができる。また、複数箇所でのシールも可
能となる。Since the seal member has a plurality of protrusions, the plurality of protrusions can be brought into contact with an element such as a valve body located around the seal member. Thereby, when driving a valve stem, it can control that a seal member twists. Also, sealing at a plurality of locations is possible.
【０００９】上記のシール部材は、たとえば略Ｘ形状の
断面を有してもよい。それにより、１つの部材で２点シ
ールが可能となり、またシール部材が捩じれることをも
抑制することができる。さらに、半径方向のしめ代が少
なくてすみ、接触圧がより小さくなり、摩擦および摩耗
が小さくなる。それにより、シール部材の耐久性を向上
させることもできる。さらに、接触圧が断面全体に一様
に分散されるので、冷媒の漏れが極めて少なくなる。The above-mentioned sealing member may have, for example, a substantially X-shaped cross section. Thereby, two-point sealing can be performed by one member, and twisting of the sealing member can also be suppressed. In addition, less radial interference is required, contact pressure is lower, friction and wear are reduced. Thereby, the durability of the sealing member can be improved. Further, since the contact pressure is uniformly distributed over the entire cross section, leakage of the refrigerant is extremely reduced.
【００１０】[0010]
【発明の実施の形態】以下、図１〜図５を用いて、本発
明の実施の形態について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
【００１１】（実施の形態１）図１および図２は、本発
明の実施の形態１における配管接続用弁を示す断面図で
ある。図１および図２に示すように、本実施の形態１に
おける配管接続用弁は２方弁であり、該２方弁は、弁本
体１と、弁棒２と、シール部材３と、キャップ４と、ス
トップリング５と、第１通路６と、第２通路７とを備え
る。(Embodiment 1) FIGS. 1 and 2 are sectional views showing a pipe connection valve according to Embodiment 1 of the present invention. As shown in FIGS. 1 and 2, the pipe connection valve according to the first embodiment is a two-way valve, and the two-way valve includes a valve body 1, a valve stem 2, a seal member 3, and a cap 4. And a stop ring 5, a first passage 6, and a second passage 7.
【００１２】弁棒２は、弁本体１内に移動可能に受入れ
られ、該弁棒２を駆動することにより第１および第２通
路６、７を開閉することができる。The valve stem 2 is movably received in the valve body 1, and the first and second passages 6, 7 can be opened and closed by driving the valve stem 2.
【００１３】シール部材３は、ゴム等の弾性体からな
り、弁本体１と弁棒２との間に設置され、弁本体１と弁
棒２との間から冷媒が漏れるのを抑制する。シール部材
３は、たとえば図５（ａ）および図５（ｂ）に示すよう
に、複数の突起３ａを有する。それにより、弁棒２をた
とえば図１の状態から右へ駆動した際にシール部材３が
捩じれるのを抑制することができる。The seal member 3 is made of an elastic material such as rubber, and is provided between the valve body 1 and the valve stem 2 to suppress leakage of refrigerant from between the valve body 1 and the valve stem 2. The seal member 3 has a plurality of protrusions 3a, for example, as shown in FIGS. 5 (a) and 5 (b). Thereby, for example, when the valve stem 2 is driven rightward from the state of FIG. 1, it is possible to suppress the twisting of the seal member 3.
【００１４】シール部材３は、図５（ａ）に示すように
略Ｘ形状の断面を有してもよく、図５（ｂ）に示すよう
に外周側のみに複数の突起３ａを有するものであっても
よい。なお、シール部材３の捩じれを抑制することがで
きるものであれば、突起３ａの形状、数、形成位置等に
ついては任意に変更可能である。The sealing member 3 may have a substantially X-shaped cross section as shown in FIG. 5A, and has a plurality of projections 3a only on the outer peripheral side as shown in FIG. 5B. There may be. The shape, number, formation position, and the like of the projections 3a can be arbitrarily changed as long as the twisting of the seal member 3 can be suppressed.
【００１５】キャップ４は、弁本体１の一端を覆うよう
に該一端に取り付けられる。ストップリング５は、弁棒
２の一端を係止して弁棒２の抜けを防止する。第１通路
６は室外機と接続され、第２通路７は室内機と接続され
る。The cap 4 is attached to one end of the valve body 1 so as to cover the one end. The stop ring 5 locks one end of the valve stem 2 to prevent the valve stem 2 from coming off. The first passage 6 is connected to an outdoor unit, and the second passage 7 is connected to an indoor unit.
【００１６】据付け工事を行なう際には、図１に示すキ
ャップ４を外し、六角レンチ等により弁棒２を駆動して
エアパージやポンプダウン等の作業を行なう。このと
き、弁棒２を駆動したとしても、シール部材３が上述の
ような形状を有しているので、シール部材３が捩じれる
のを抑制することができる。それにより、弁棒２と弁本
体１との間に隙間が生じるのを抑制することができ、こ
の隙間から冷媒が大気中に漏れるのを抑制することがで
きる。When performing the installation work, the cap 4 shown in FIG. 1 is removed, and the valve stem 2 is driven by a hexagon wrench or the like to perform operations such as air purge and pump down. At this time, even if the valve stem 2 is driven, since the seal member 3 has the above-described shape, the seal member 3 can be prevented from being twisted. Thereby, it is possible to suppress the generation of a gap between the valve stem 2 and the valve body 1, and it is possible to suppress the refrigerant from leaking into the atmosphere from the gap.
【００１７】据付け工事後には、弁棒２は図２に示す位
置に移動するが、キャップ４が弁本体１に取り付けられ
ているので、キャップ４の締付けにより機械的シールを
行なうことができる。このキャップ４とシール部材３と
の双方により、大気中への冷媒の漏れを抑制することが
できる。After the installation work, the valve stem 2 moves to the position shown in FIG. 2, but since the cap 4 is attached to the valve body 1, the mechanical seal can be performed by tightening the cap 4. With both the cap 4 and the seal member 3, leakage of the refrigerant into the atmosphere can be suppressed.
【００１８】（実施の形態２）次に、本発明の実施の形
態２について説明する。図３および図４は、本発明の実
施の形態２における配管接続用弁を示す断面図である。(Embodiment 2) Next, Embodiment 2 of the present invention will be described. 3 and 4 are cross-sectional views showing a pipe connection valve according to Embodiment 2 of the present invention.
【００１９】図３および図４に示すように、本実施の形
態２における配管接続用弁は３方弁であり、該３方弁
は、シール部材３と、弁本体８と、弁棒９と、ストップ
リング１１と、第１通路１４と、第２通路１５とを備え
る。そして、３方弁における１つの通路内にバルブコア
１２を設置し、該通路端にナット１３を螺着している。As shown in FIGS. 3 and 4, the pipe connection valve according to the second embodiment is a three-way valve, and the three-way valve includes a seal member 3, a valve body 8, a valve rod 9, , A stop ring 11, a first passage 14, and a second passage 15. The valve core 12 is installed in one passage of the three-way valve, and a nut 13 is screwed to an end of the passage.
【００２０】本実施の形態の場合にも、前述の構造のシ
ール部材３を設置しているので、工事の際の冷媒の漏れ
を抑制することができる。Also in the case of the present embodiment, since the sealing member 3 having the above-described structure is provided, it is possible to suppress the leakage of the refrigerant during the construction.
【００２１】上述のように本発明の実施の形態について
説明を行なったが、今回開示した実施の形態はすべての
点で例示であって制限的なものではないと考えられるべ
きである。本発明の範囲は特許請求の範囲によって示さ
れ、特許請求の範囲と均等の意味および範囲内でのすべ
ての変更が含まれる。Although the embodiment of the present invention has been described as above, the embodiment disclosed this time is to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, and includes all modifications within the scope and meaning equivalent to the claims.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
弁棒を駆動した際にシール部材が捩じれるのを抑制する
ことができる。それにより、弁棒を駆動した際に弁本体
と弁棒間に隙間が生じるのを抑制することができ、該隙
間から冷媒が大気中に漏れるのを抑制することができ
る。As described above, according to the present invention,
When the valve stem is driven, twisting of the seal member can be suppressed. Thus, it is possible to suppress the generation of a gap between the valve body and the valve stem when driving the valve stem, and it is possible to suppress the refrigerant from leaking into the atmosphere from the gap.
【図１】 本発明の実施の形態１における配管接続用弁
（２方弁）を示す断面図である。FIG. 1 is a sectional view showing a pipe connection valve (two-way valve) according to Embodiment 1 of the present invention.
【図２】 据付け工事後の実施の形態１における配管接
続用弁を示す断面図である。FIG. 2 is a cross-sectional view illustrating a pipe connection valve according to the first embodiment after installation work.
【図３】 本発明の実施の形態２における配管接続用弁
（３方弁）を示す断面図である。FIG. 3 is a sectional view showing a pipe connection valve (three-way valve) according to a second embodiment of the present invention.
【図４】 据付け工事後の実施の形態２における配管接
続用弁を示す断面図である。FIG. 4 is a cross-sectional view showing a pipe connection valve according to a second embodiment after installation work.
【図５】 （ａ）および（ｂ）は本発明に係るシール部
材の断面図である。FIGS. 5A and 5B are cross-sectional views of a seal member according to the present invention.
【図６】 従来のシール部材の断面図である。FIG. 6 is a sectional view of a conventional sealing member.
１，８ 弁本体、２，９ 弁棒、３ シール部材、４
キャップ、５，１１ストップリング、６，１４ 第１通
路、７，１５ 第２通路、１２ バルブコア、１３ ナ
ット。1,8 valve body, 2,9 valve stem, 3 seal members, 4
Cap, 5,11 stop ring, 6,14 1st passage, 7,15 2nd passage, 12 valve core, 13 nut.
Claims (2)
され、該室外ユニットと室内ユニット間の配管を接続す
るための配管接続用弁であって、 弁本体と、 前記弁本体内に設置される弁棒と、 前記弁本体と前記弁棒との間に設置され、前記弁棒を駆
動した際に捩じれるのを抑制するための複数の突起を有
し、外気への冷媒の漏れを抑制するためのシール部材
と、を備えた、配管接続用弁。1. A pipe connection valve disposed in an outdoor unit of a separation type air conditioner for connecting a pipe between the outdoor unit and an indoor unit, the valve being connected to a valve body, and installed in the valve body. The valve stem, which is provided between the valve body and the valve stem, has a plurality of protrusions for suppressing twisting when the valve stem is driven, and prevents leakage of refrigerant to the outside air. A pipe connection valve, comprising: a sealing member for suppressing the pressure.
する、請求項１に記載の配管接続用弁。2. The pipe connection valve according to claim 1, wherein the seal member has a substantially X-shaped cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31908999A JP2001132991A (en) | 1999-11-10 | 1999-11-10 | Valve for connecting piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31908999A JP2001132991A (en) | 1999-11-10 | 1999-11-10 | Valve for connecting piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001132991A true JP2001132991A (en) | 2001-05-18 |
Family
ID=18106375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31908999A Withdrawn JP2001132991A (en) | 1999-11-10 | 1999-11-10 | Valve for connecting piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001132991A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030068298A (en) * | 2002-02-14 | 2003-08-21 | 주식회사 엘지이아이 | Service-valve structure of outdoor unit for airconditioner |
| JP2005315359A (en) * | 2004-04-28 | 2005-11-10 | Chiyoda Kucho Kiki Kk | Valve device |
| DE102005018585A1 (en) * | 2005-04-21 | 2006-10-26 | Lepping, Klaus-Peter | Adaptor for building air conditioner has flow control valve with housing positioned between inner and outer air conditioner sections |
| JP2009103383A (en) * | 2007-10-24 | 2009-05-14 | Toshiba Carrier Corp | Indoor unit of air conditioner |
| CN105299294A (en) * | 2014-07-24 | 2016-02-03 | 陈俊 | Electromagnetic valve used for heating ventilation air conditioner |
-
1999
- 1999-11-10 JP JP31908999A patent/JP2001132991A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030068298A (en) * | 2002-02-14 | 2003-08-21 | 주식회사 엘지이아이 | Service-valve structure of outdoor unit for airconditioner |
| JP2005315359A (en) * | 2004-04-28 | 2005-11-10 | Chiyoda Kucho Kiki Kk | Valve device |
| DE102005018585A1 (en) * | 2005-04-21 | 2006-10-26 | Lepping, Klaus-Peter | Adaptor for building air conditioner has flow control valve with housing positioned between inner and outer air conditioner sections |
| JP2009103383A (en) * | 2007-10-24 | 2009-05-14 | Toshiba Carrier Corp | Indoor unit of air conditioner |
| CN105299294A (en) * | 2014-07-24 | 2016-02-03 | 陈俊 | Electromagnetic valve used for heating ventilation air conditioner |
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