JP6732183B2 - Gas tap - Google Patents
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- JP6732183B2 JP6732183B2 JP2016199071A JP2016199071A JP6732183B2 JP 6732183 B2 JP6732183 B2 JP 6732183B2 JP 2016199071 A JP2016199071 A JP 2016199071A JP 2016199071 A JP2016199071 A JP 2016199071A JP 6732183 B2 JP6732183 B2 JP 6732183B2
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Description
この発明は、ガス栓、特に、防水機能を有するガス栓に関する。 The present invention relates to a gas stopper, and more particularly to a gas stopper having a waterproof function.
図４に示すガス栓は、ガス栓本体(31)に挿通するガス流路(31a)の中央部に、せん収容部(30)が、図面では上方に開放するように設けられており、せん収容部(30)の上方には、筒状部(33)が延長形成されている。筒状部(33)には、せん収容部(30)内に収容されているせん(3)を回動操作する操作ハンドル(2)が取り付けられる。
また、ガスメータ用ガス栓のように屋外に設置されるガス栓や、厨房に設置されるガス栓では、ガス栓本体(31)内への雨水や洗浄水等の浸入を防止するために、筒状部(33)の頂面周縁部と操作ハンドル(2)の裏面との間には、環状の防水パッキン(40)が密に介在されている。
In the gas plug shown in FIG. 4, a gas accommodating portion (30) is provided at the center of the gas flow passage (31a) that is inserted into the gas plug body (31) so as to open upward in the drawing. A tubular portion (33) is formed to extend above the accommodation portion (30). The tubular portion (33) is provided with an operation handle (2) for rotating the ribbon (3) housed in the ribbon housing portion (30).
In addition, in the case of a gas tap installed outdoors such as a gas tap for a gas meter or a gas tap installed in a kitchen, in order to prevent rainwater, washing water, etc. from entering the gas tap body (31), a cylinder An annular waterproof packing (40) is tightly interposed between the peripheral portion of the top surface of the shaped portion (33) and the back surface of the operation handle (2).
筒状部(33)の内周壁の複数箇所には、円弧状の係合フランジ部(32)が部分的に内方へ張り出しており、操作ハンドル(2)の裏面には、係合フランジ部(32)に下方から係合させる複数の係合鍔部(22)が外方へ張り出している。
また、操作ハンドル(2)の裏面の略中央部と、せん(3)の頂面中央部との間には、押えバネ(4)を圧縮させた状態で介在させている。
At a plurality of locations on the inner peripheral wall of the cylindrical portion (33), arcuate engagement flange portions (32) partially project inward, and the engagement flange portions are provided on the back surface of the operation handle (2). A plurality of engaging brim portions (22) for engaging the (32) from below are projected outward.
Further, a pressing spring (4) is interposed in a compressed state between a substantially central portion of the back surface of the operation handle (2) and a central portion of the top surface of the spiral (3).
係合鍔部(22)を、押えバネ(4)の付勢力に抗して、係合フランジ部(32)に下から係合させる態様で、操作ハンドル(2)をガス栓本体(31)の筒状部(33)に装着した状態においては、押えバネ(4)の付勢力によって、せん(3)はせん収容部(30)の底部側に押圧されると同時に、係合鍔部(22)の上面が係合フランジ部(32)の下面に圧接される。このとき、操作ハンドル(2)の裏面と筒状部(33)の頂面との間には、所定の隙間(S)が形成される態様となる。この装着状態において、防水パッキン(40)は、筒状部(33)の頂面周縁部と操作ハンドル(2)の裏面との間で押圧されて、ガス栓本体(31)内部の防水性を保持している。 The operation handle (2) is connected to the gas stopper body (31) in a manner such that the engagement flange portion (22) is engaged with the engagement flange portion (32) from below against the urging force of the pressing spring (4). In the state where it is attached to the tubular portion (33) of the, the spiral (3) is pressed to the bottom side of the spiral accommodating portion (30) by the urging force of the presser spring (4), and at the same time, the engaging collar portion ( The upper surface of 22) is pressed against the lower surface of the engaging flange portion (32). At this time, a predetermined gap (S) is formed between the back surface of the operation handle (2) and the top surface of the tubular portion (33). In this mounted state, the waterproof packing (40) is pressed between the peripheral portion of the top surface of the tubular portion (33) and the back surface of the operation handle (2) to protect the inside of the gas stopper body (31) from waterproofing. keeping.
上記したガス栓の防水パッキン(40)は、ガス栓の種々の設置環境を考慮して、屋外における耐雨水、耐オゾン、耐熱、耐塵埃等、厨房における耐湯、耐油類、耐洗剤、耐熱等に効果を有する材料が選ばれ、更にはガス栓の内部に使用するグリースやオイルのような潤滑剤に対する耐性も有するものとしなければならない。 The above-mentioned waterproof packing (40) for gas stoppers is designed to be resistant to rainwater, ozone, heat, dust, etc. in the outdoor environment, considering hot water, oil resistance, detergent resistance, and heat resistance in the kitchen. A material that has the effect of, for example, is selected, and it must also have resistance to a lubricant such as grease or oil used inside the gas stopper.
このように、防水パッキン(40)はガス栓外部及びガス栓内部からの影響に対して一つの部材で対応しているため、耐性となる効果が弱くなるところがある。また、一つのパッキンで多くの影響に対して効果的に対応できる特性を有するものを採用すると、そのような特性を有するパッキンは特段高価であるため、コストの高いガス栓となってしまう。 As described above, since the waterproof packing (40) has a single member to cope with the influence from the outside of the gas plug and the inside of the gas plug, the effect of resistance becomes weak in some cases. Further, if one packing having a characteristic capable of effectively dealing with many influences is adopted, the packing having such a characteristic is particularly expensive, resulting in a high cost gas plug.
本発明は、上記問題に鑑みてなされたものであり、『ガス栓本体のせん収容部の開放端部に筒状部が連設されていると共に、前記せん収容部内に収容されているせんを回動操作するための操作ハンドルが前記筒状部に対して回動自在に且つ抜け止め状態に装着され、前記筒状部と前記操作ハンドルとの間に環状の防水パッキンを介在させたガス栓』において、設置される環境やガス栓本体の外部及び内部からの様々な影響に効果的に対応できると共に、前記防水パッキンの初期の防水性能を維持することが出来るガス栓をコストを抑えた状態で提供することを課題とする。 The present invention has been made in view of the above problems, and "a tubular part is continuously provided at an open end portion of a gas accommodating portion of a gas stopper body, and a gas accommodating in the gas accommodating portion is An operating handle for rotating operation is attached to the tubular portion in a rotatable and retaining state, and a gas plug having an annular waterproof packing interposed between the tubular portion and the operating handle. ), the gas plug that can effectively cope with various influences from the environment in which it is installed and the outside and the inside of the gas plug body, and can maintain the initial waterproof performance of the waterproof packing while keeping the cost down. The challenge is to provide in.
上記課題を解決するために講じた本発明の解決手段は、『前記防水パッキンよりも所定の間隔をおいて内側に位置する前記筒状部と前記操作ハンドルとの間に、前記防水パッキンより小径の環状の第２パッキンを設け、
前記防水パッキンはガス栓に対する外部からの影響に耐性のある材質とし、第２パッキンはガス栓の内部からの影響に耐性のある材質とした』ことである。
The solution means of the present invention taken to solve the above-mentioned problem is that "a diameter smaller than that of the waterproof packing is provided between the tubular portion and the operation handle located inside with a predetermined distance from the waterproof packing. The annular second packing of
The waterproof packing is made of a material resistant to the external influence on the gas plug, and the second packing is made of a material resistant to the internal influence of the gas plug”.
上記手段は次のように作用する。
ガス栓本体の筒状部と操作ハンドルとの間には、外側に環状の防水パッキンが、その内側に所定の間隔をおいて第２パッキンが介在されてあり、ガス栓を組み付けた状態においては、両者は、共に、圧縮された状態となり、シール性を有する状態となっている。この状態で、防水パッキンはガス栓の設置環境、例えば屋外設置や厨房設置に適応した材質のパッキンを使用することにより、ガス栓の外部からの熱影響や洗剤等からの影響に対して耐性を有し、その結果、初期の防水性を維持するものとなる。他方、第２パッキンは、ガス栓に使用するグリース、例えば、操作ハンドルとガス栓本体の嵌合部や、せんの押さえバネ取付部に使用する潤滑用グリースに対する耐性に優れた材質のパッキンを使用することにより、グリースに接触しても膨潤したり、変形することがなく、気密性が保たれる。また、グリースは外気にさらされることがなく、グリースの劣化が防止される。
なお、ガス栓の防水構造においては、防水パッキン及び第２パッキンの両方が機能するので、防水性能は長期に亘って初期の防水性能が維持される。
なお、第２パッキンは防水パッキンよりも小径な環状体とし、防水パッキンよりも内側に取り付ける構成としたから、操作ハンドルを小型化することが出来る。また、第２パッキンの円周長さは防水パッキンのそれより短いことから、前記筒状部と前記操作ハンドルとの間での摩擦抵抗は小さく、同径のパッキンを２つ設ける場合に比べて、操作ハンドルの回動時の操作力を軽減することが出来る。
The above means operate as follows.
Between the tubular portion of the gas stopper main body and the operating handle, an annular waterproof packing is provided on the outside and a second packing is provided on the inside thereof with a predetermined interval, and in the state where the gas stopper is assembled, Both of them are in a compressed state and have a sealing property. In this state, the waterproof packing is resistant to the heat effect from the outside and the effect from detergent etc. by using the packing material of the material suitable for the installation environment of the gas stopper, for example, outdoor installation or kitchen installation. As a result, the initial waterproofness is maintained. On the other hand, the second packing uses a packing made of a material with excellent resistance to grease used for the gas stopper, for example, the lubricating grease used for the fitting portion between the operation handle and the gas stopper main body and the spring holding spring mounting portion of the screw. By so doing, airtightness is maintained without swelling or deformation even when contacting with grease. Further, the grease is not exposed to the outside air, and the deterioration of the grease is prevented.
In the waterproof structure of the gas plug, both the waterproof packing and the second packing function, so that the waterproof performance is maintained at the initial waterproof performance for a long period of time.
Since the second packing is an annular body having a smaller diameter than the waterproof packing and is attached inside the waterproof packing, the operation handle can be downsized. Further, since the circumferential length of the second packing is shorter than that of the waterproof packing, the frictional resistance between the tubular portion and the operation handle is small, and compared with the case where two packings having the same diameter are provided. , It is possible to reduce the operation force when the operation handle is rotated.
上記ガス栓において、好ましくは、『前記防水パッキンは、前記筒状部の頂面周縁部と操作ハンドルの裏面との間に設けられた、外側に向かって開放する断面略Ｃ字状体とした』ことである。 In the above gas plug, preferably, “the waterproof packing is a substantially C-shaped section that is provided between the peripheral portion of the top surface of the tubular portion and the back surface of the operation handle and opens toward the outside. That's it.
防水パッキンを第２パッキンより大径としても、防水パッキンは外方に向かって開放する断面略Ｃ字状体に形成され、これが、筒状部の頂面周縁部と操作ハンドルの裏面との間に、上下方向に挟まれるように取り付けられるから、操作ハンドルの回動操作が極端に重くなることがない。 Even if the waterproof packing has a diameter larger than that of the second packing, the waterproof packing is formed in a substantially C-shaped body having a cross section that opens outward, and this is between the top peripheral portion of the tubular portion and the back surface of the operation handle. In addition, since it is attached so as to be sandwiched in the vertical direction, the turning operation of the operation handle does not become extremely heavy.
上記ガス栓において、好ましくは、『前記第２パッキンはＯリングとした』ことである。
ガス栓本体内は、外側の防水パッキンと内側のＯリングによって、水密状態に且つ気密状態に保たれる。よって、外部から雨水や洗浄水、洗剤等がガス栓本体内に浸入するのを確実に防止できると共に、万が一、ガス栓本体内部からの微小ガス漏れがあってもガス栓外部への漏れを防止することが出来る。
In the gas plug, it is preferable that "the second packing is an O-ring".
The inside of the gas stopper body is kept watertight and airtight by the outer waterproof packing and the inner O-ring. Therefore, it is possible to reliably prevent rainwater, cleaning water, detergent, etc. from entering the gas stopper body from the outside, and even if there is a small gas leak from the inside of the gas stopper body, it will not leak to the outside of the gas stopper. You can do it.
本発明によれば、防水パッキンと第２パッキンの双方で、ガス栓本体が外部及び内部から受ける様々な影響に対して耐性を補完する機能を有するようにしたから、設置される環境やガス栓本体の内外からの影響に関わらず、防水パッキンは初期の防水性を長期に亘って維持することができると共に、第２パッキンも膨張や変形することはなく、気密性を維持することができる。このように、単一の高価な防水パッキンを使用しなくても、作用する影響に応じた二つのパッキンを使用することで様々な耐性機能を備えたガス栓を安価に提供することができる。 According to the present invention, both the waterproof packing and the second packing have the function of complementing the resistance of the gas plug body against various external and internal influences. Regardless of the influence from the inside and outside of the main body, the waterproof packing can maintain the initial waterproofness for a long period of time, and the second packing can be kept airtight without expanding or deforming. As described above, even if a single expensive waterproof packing is not used, it is possible to inexpensively provide a gas stopper having various resistance functions by using the two packings according to the effect of the action.
特に、第２パッキンをＯリングとすることにより、防水構造を簡単で安価なものとすることができる。
また、ガス栓本体内の気密性も確保できるから、例えば、せんとせん収容部との摺動面に傷が付いたり、異物が付着したりすることにより、せんの外表面からわずかなガス漏れが生じても、それが、ガス栓本体の外部への漏れる不都合を防止することができる。
さらに、ガス栓周囲の温度変化により、ガス栓本体の内部と外部との間に圧力差が生じることがあっても、ガス栓本体の内部と外部は通気することはないから、防水パッキンに付着した水がガス栓本体内に吸引されることもない。
なお、防水パッキンと第２パッキンとの間の空間も、ガス栓本体内への水や異物等の浸入防止に有効に機能させることができる。
Particularly, by using the O-ring as the second packing, the waterproof structure can be made simple and inexpensive.
Also, since the airtightness inside the gas stopper main body can be secured, for example, a slight gas leak from the outer surface of the stopper due to scratches on the sliding surface of the stopper and the accommodating portion of the stopper or foreign matter attached. Even if this occurs, it is possible to prevent the inconvenience that it leaks to the outside of the gas stopper body.
Furthermore, even if there is a pressure difference between the inside and outside of the gas stopper main body due to the temperature change around the gas stopper main body, the inside and outside of the gas stopper main body will not vent, so it will adhere to the waterproof packing. The generated water is not sucked into the gas stopper body.
It should be noted that the space between the waterproof packing and the second packing can also effectively function to prevent water, foreign matter, and the like from entering the gas plug body.
以下に、本発明を実施するための最良の形態について添付図面を参照しながら説明する。
図１は、本願発明の実施の形態におけるガス栓の全体図であり、図２は防水パッキン(10)及び防水パッキン(10)よりも小径な第２パッキンとしてのＯリング(1)の装着部分の要部拡大断面図である。
この実施の形態のガス栓のガス栓本体(31)は、従来のものと同様な構成であり、上流側ネジ筒部(311)と下流側ネジ筒部(312)とが同軸上に並ぶように連結されたガス流路(31a)を有し、その中央部に、せん収容部(30)が設けられると共に、せん収容部(30)内に、気密性と潤滑性を維持するためのグリース(15)を塗布したせん(3)を収容し、操作ハンドル(2)を回動することにより、せん(3)を回動しガス流路(31a)を開閉する構造となっている。
The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is an overall view of a gas plug according to an embodiment of the present invention, and FIG. 2 is a mounting portion of a waterproof packing (10) and an O-ring (1) as a second packing having a diameter smaller than that of the waterproof packing (10). FIG.
The gas plug body (31) of the gas plug of this embodiment has the same structure as the conventional one, and the upstream screw cylinder part (311) and the downstream screw cylinder part (312) are arranged coaxially. Has a gas flow path (31a) connected to the central part of which is provided with a pen housing part (30), and a grease for maintaining airtightness and lubricity in the pen housing part (30). By accommodating the cap (3) coated with (15) and rotating the operation handle (2), the cap (3) is rotated to open and close the gas flow path (31a).
また、防水パッキン(10)の材質は耐光性、耐オゾン性等に優れたＥＰＤＭ又はシリコンゴムとし、Ｏリング(1)の材質はガス栓内部のグリース(15)に対する耐油性に優れるＮＢＲとしている。
なお、せん収容部(30)の上方開放端には筒状部(33)が延設されている。
The material of the waterproof packing (10) is EPDM or silicone rubber having excellent light resistance and ozone resistance, and the material of the O-ring (1) is NBR having excellent oil resistance to the grease (15) inside the gas plug. ..
A tubular portion (33) is provided at the upper open end of the wire accommodating portion (30).
せん(3)の頂面には、操作ハンドル(2)の裏面に設けられた係合部(24)に回動方向に係合する一対の操作軸(34)(34)が突設されていると共に、操作軸(34)(34)で囲まれた範囲内に、せん(3)をせん収容部(30)内に弾性的に押し込むための押えバネ(4)が介在され、バネ(4)の受け部には潤滑用のグリース(15)が塗布されている。 A pair of operation shafts (34) and (34) that engage in the rotational direction with the engaging portion (24) provided on the back surface of the operation handle (2) are provided on the top surface of the scroll (3) in a protruding manner. In addition, a holding spring (4) for elastically pushing the pin (3) into the pin accommodating portion (30) is provided within the range surrounded by the operating shafts (34) (34). Grease for lubrication (15) is applied to the receiving part of the ).
筒状部(33)の内周壁からは、円弧状の係合フランジ部(32)(32)が部分的に内方へ突設していると共に、その基端部から環状凸部(35)が上方へ突設されている。そして、環状凸部(35)の外側基端部には、防水パッキン(10)を収容するための環状の収容溝(36)が形成されている。筒状部(33)の頂面の外周端縁近傍には、収容溝(36)の外周端の一部に相当する外周凸部(37)が周方向に突設されている。 From the inner peripheral wall of the cylindrical portion (33), arcuate engagement flange portions (32) (32) partially project inward, and an annular convex portion (35) from the base end thereof. Is projected upward. An annular housing groove (36) for housing the waterproof packing (10) is formed at the outer proximal end of the annular convex portion (35). In the vicinity of the outer peripheral edge of the top surface of the tubular portion (33), an outer peripheral convex portion (37) corresponding to a part of the outer peripheral end of the accommodation groove (36) is provided so as to project in the circumferential direction.
これに対し、操作ハンドル(2)の裏面には、上述した複数の係合フランジ部(32)(32)間からそれよりも下方へ嵌め込んだ後、操作ハンドル(2)を所定角度回動させることにより、係合フランジ部(32)(32)の下方へ位置させる係合鍔部(22)(22)が外方へ張り出している。また、係合鍔部(22)よりも外側の、環状凸部(35)に対応する箇所には、環状凸部(35)が回動自在に嵌め込まれる環状凹溝(20)が下方に開放するように形成されている。 On the other hand, on the back surface of the operation handle (2), after being fitted between the plurality of engaging flange portions (32) and (32) below, the operation handle (2) is rotated by a predetermined angle. By doing so, the engaging flange portions (22) (22) located below the engaging flange portions (32) (32) are projected outward. Further, an annular groove (20) into which the annular convex portion (35) is rotatably fitted is opened downward at a location outside the engaging collar portion (22) and corresponding to the annular convex portion (35). Is formed.
環状凹溝(20)は、上端底部側の幅狭溝部(20a)と、それより下方の幅広溝部(20b)とからなり、幅狭溝部(20a)には、幅狭溝部(20a)の幅以上の幅を有するＯリング(1)が密に嵌め込まれている。
これにより、複数の係合鍔部(22)を複数の係合フランジ部(32)にそれぞれ下方から係合させた、操作ハンドル(2)のガス栓本体(31)への取り付け状態にて、幅広溝部(20b)差し込まれた環状凸部(35)の頂面と、幅狭溝部(20a)の上端底部との間には、Ｏリング(1)が所定の押圧力で押圧された状態で介在されていると共に、幅広溝部(20b)の開放端側に連通する収容溝(36)と操作ハンドル(2)の裏面との間には、防水パッキン(10)が所定の押圧量で押圧された状態で介在されている。
なお、Ｏリング(1)は防水パッキン(10)よりも小径な環状体であり、防水パッキン(10)よりも内側に設置させているから、操作ハンドル(2)を小型化することが出来ると共に、Ｏリング(1)の円周長さは防水パッキン(10)よりも短いことから、環状凸部(35)の頂面が受ける摩擦抵抗は比較的小さく、操作ハンドル(2)の回動時の操作力を軽減することが出来る。
The annular groove (20) is composed of a narrow groove portion (20a) on the upper end bottom side and a wide groove portion (20b) below it, and the narrow groove portion (20a) has a width of the narrow groove portion (20a). The O-ring (1) having the above width is tightly fitted.
This allows the plurality of engaging flange portions (22) to engage with the plurality of engaging flange portions (32) from below, respectively, in a state of being attached to the gas stopper body (31) of the operation handle (2), The O-ring (1) is pressed by a predetermined pressing force between the top surface of the annular convex portion (35) inserted into the wide groove portion (20b) and the upper end bottom portion of the narrow groove portion (20a). A waterproof packing (10) is pressed with a predetermined amount of pressure between the accommodation groove (36) which is interposed and communicates with the open end side of the wide groove (20b) and the back surface of the operation handle (2). It is intervened in a closed state.
Since the O-ring (1) is an annular body having a smaller diameter than the waterproof packing (10) and is installed inside the waterproof packing (10), the operation handle (2) can be downsized. Since the circumference length of the O-ring (1) is shorter than that of the waterproof packing (10), the frictional resistance received by the top surface of the annular convex portion (35) is relatively small, and when the operation handle (2) is rotated. The operating force of can be reduced.
なお、操作ハンドル(2)をガス栓本体(31)の筒状部(31)に取り付ける際に、係合鍔部(22)を係合フランジ部(32)の下方に円滑に挿入することができるように、係合鍔部(22)の上面が係合フランジ部(32)の下面に当接した状態にて、環状凸部(35)の頂面と環状凹溝(20)の上端底部との間、操作ハンドル(2)の裏面と係合フランジ部(32)の頂面との間、さらには、ガス栓本体(31)の筒状部(33)の周縁の外周凸部(37)とそれに対応するように操作ハンドル(2)の裏面に突設させた外周凸部(27)との間には、それぞれ所定幅の隙間(S1)(S2)(S3)が形成されている。 When the operation handle (2) is attached to the tubular part (31) of the gas stopper body (31), the engaging collar part (22) can be smoothly inserted below the engaging flange part (32). As possible, with the upper surface of the engaging flange portion (22) in contact with the lower surface of the engaging flange portion (32), the top surface of the annular convex portion (35) and the upper end bottom portion of the annular concave groove (20). Between the back surface of the operation handle (2) and the top surface of the engaging flange portion (32), and further, the outer peripheral convex portion (37) of the peripheral edge of the tubular portion (33) of the gas stopper body (31). ) And a corresponding outer peripheral projection (27) protruding from the back surface of the operation handle (2), gaps (S1) (S2) (S3) of a predetermined width are formed respectively. ..
これら隙間(S1)(S2)(S3)が形成されているから、複数の係合鍔部(22)(22)を複数の係合フランジ部(32)(32)間からそれよりも下方へ嵌め込むことができ、操作ハンドル(2)の筒状部(33)への装着作業がやり易くなっている。なお、隙間(S1)には、上述したように、Ｏリング(1)が嵌め込まれているため、操作ハンドル(2)の筒状部(33)への装着の際には、Ｏリング(1)は強制的に圧縮されることとなる。 Since these gaps (S1) (S2) (S3) are formed, the plurality of engaging flange portions (22) (22) are moved downward from between the plurality of engaging flange portions (32) (32). The operation handle (2) can be fitted in the tubular portion (33) easily. Since the O-ring (1) is fitted in the gap (S1) as described above, when the operation handle (2) is attached to the tubular portion (33), the O-ring (1 ) Will be forcibly compressed.
収容溝(36)は隙間(S3)に連通する構成となっているが、収容溝(36)内に防水パッキン(10)を密に収容することにより、隙間(S3)側への通路は遮断される。
防水パッキン(10)は、隙間(S3)側へ向って開放する断面略Ｃ字状の弾性材料製の環状体とし、上片(11)は、外周凸部(27)の内側面とそれの内方に続く操作ハンドル(2)の裏面に密に圧接しており、下片(12)は外周凸部(37)とそれの内方に続く収容溝(36)に密に圧接している。
The storage groove (36) is configured to communicate with the gap (S3), but by tightly housing the waterproof packing (10) in the storage groove (36), the passage to the gap (S3) side is blocked. To be done.
The waterproof packing (10) is an annular body made of an elastic material having a substantially C-shaped cross section that opens toward the gap (S3) side, and the upper piece (11) is an inner surface of the outer peripheral projection (27) and its outer surface. The lower piece (12) is tightly pressed against the back surface of the operation handle (2) continuing to the inside, and the lower piece (12) is tightly pressed against the outer peripheral projection (37) and the receiving groove (36) continuing to the inside. ..
上記構成のガス栓を組立てるには、まず、せん(3)の摺動面及び頂面周囲にグリース(15)を塗布し、ガス栓本体(31)のせん収容部(30)にせん(3)を収容すると共に、操作軸(34)の周囲に相当する範囲に、保護シート(13)を被覆させる。
そして、せん(3)の頂面の操作軸(34)で囲まれた範囲に押えバネ(4)を載置し、ガス栓本体(31)と操作ハンドル(2)の摺動部となる係合フランジ部(32)、係合鍔部(22)、筒状部(33)の内周壁及び押えバネ(4)の受け部となるせん(3)と操作ハンドル(2)のバネ受け部には潤滑用のグリース(15)を塗布又は充填する。
また、筒状部(33)の頂面の収容溝(36)に防水パッキン(10)をセットすると共に、操作ハンドル(2)の環状凹溝(20)の幅狭溝部(20a)に、Ｏリング(1)を押し込む。
Ｏリング(1)の材質としては、上記したように、グリース(15)に対する耐性に優れたＮＢＲを採用しているから、グリース(15)に接触することがあっても、変形することがなく、ガス栓内部の気密性を保つことができる。また、Ｏリング(1)によってグリース(15)が外気にさらされることもないから、グリース(15)の劣化を防止することが出来る。
To assemble the gas stopper having the above structure, first apply grease (15) around the sliding surface and the top surface of the stopper (3), and then seal the stopper (30) of the stopper (3) on the stopper (3). ) Is accommodated, and a range corresponding to the periphery of the operation shaft (34) is covered with the protective sheet (13).
Then, the presser spring (4) is placed in the area surrounded by the operation shaft (34) on the top surface of the wire (3), and serves as a sliding portion between the gas stopper body (31) and the operation handle (2). The flange (32), the engaging flange (22), the inner peripheral wall of the tubular part (33) and the spring (3) that serves as the receiving portion for the holding spring (4) and the spring receiving portion of the operating handle (2). Apply or fill grease (15) for lubrication.
In addition, the waterproof packing (10) is set in the accommodation groove (36) on the top surface of the cylindrical portion (33), and the O-shaped groove (20a) of the annular groove (20) of the operation handle (2) is provided with O Push in the ring (1).
As described above, since the O-ring (1) is made of NBR, which has excellent resistance to the grease (15), it does not deform even if it comes in contact with the grease (15). The airtightness inside the gas plug can be maintained. Further, since the grease (15) is not exposed to the outside air by the O-ring (1), deterioration of the grease (15) can be prevented.
そして、操作ハンドル(2)の係合部(24)(24)の間に、せん(3)の操作軸(34)(34)を対応させると同時に、係合フランジ部(32)(32)の非形成域に係合鍔部(22)(22)を対応させて、操作ハンドル(2)を、ガス栓本体(31)の筒状部(33)内に、コイルバネ(4)の弾性復帰力に抗して押し込み、押込み後、係合鍔部(22)(22)が係合フランジ部(32)(32)の下方に位置するように、操作ハンドル(2)を回動させる。 Then, the operating shafts (34) (34) of the spiral (3) are made to correspond between the engaging portions (24) (24) of the operating handle (2), and at the same time, the engaging flange portions (32) (32). The operating handle (2) is elastically returned to the coil spring (4) in the tubular part (33) of the gas stopper body (31) by making the engaging collars (22) and (22) correspond to the non-formation area of Pushing against the force, and after pushing, the operation handle (2) is rotated so that the engaging brim portions (22) (22) are located below the engaging flange portions (32) (32).
このとき、操作ハンドル(2)の裏面とガス栓本体(31)の筒状部(33)の頂面との間には、上記したように隙間(S1)(S2)(S3)が形成されているから、これら隙間(S2)(S3)を利用して、また、隙間(S1)に圧入されているＯリング(1)をわずかに圧縮させながら、係合鍔部(22)(22)を係合フランジ部(32)(32)の下方に円滑に差し込むことができる。 At this time, the gaps (S1) (S2) (S3) are formed between the back surface of the operation handle (2) and the top surface of the tubular portion (33) of the gas stopper body (31) as described above. Therefore, the engaging flanges (22) and (22) are utilized by utilizing these gaps (S2) and (S3) and slightly compressing the O-ring (1) press-fitted into the gap (S1). Can be smoothly inserted below the engaging flange portions (32) (32).
これにより、操作ハンドル(2)は、ガス栓本体(31)に対して抜け止め状態に装着され、押えバネ(4)は、せん(3)と操作ハンドル(2)との間に、圧縮された状態に介在される態様となると共に、その付勢力によって、せん(3)はせん収容部(30)の底部に押し付けられると同時に、係合鍔部(22)の上面が係合フランジ部(32)の下面に圧接され、操作ハンドル(2)の裏面と筒状部(33)の頂面との間に、隙間(S2)(S3)が形成される態様となる。なお、Ｏリング(1)と防水パッキン(10)は、操作ハンドル(2)とガス栓本体(31)の筒状部(33)の頂面との間にて、所定の押圧力で押圧された状態に維持される。
なお、筒状部の外周端縁近傍の外周凸部(37)と、それに対向する外周凸部(27)との間には、保護リング(14)を装着させている。
As a result, the operating handle (2) is attached to the gas stopper body (31) in a state that it does not come off, and the presser spring (4) is compressed between the pin (3) and the operating handle (2). In addition, the spiral (3) is pressed against the bottom of the spiral accommodating portion (30) by the urging force, and at the same time, the upper surface of the engaging collar (22) is engaged with the engaging flange ( This is a mode in which a gap (S2) (S3) is formed between the back surface of the operation handle (2) and the top surface of the tubular portion (33) by being pressed against the lower surface of the 32). The O-ring (1) and the waterproof packing (10) are pressed with a predetermined pressing force between the operation handle (2) and the top surface of the tubular portion (33) of the gas stopper body (31). Be maintained in a closed state.
A protective ring (14) is attached between the outer peripheral protrusion (37) near the outer peripheral edge of the tubular portion and the outer peripheral protrusion (27) facing it.
上記構成のガス栓では、ガス栓本体(31)の筒状部(33)の頂面の環状凸部(35)と外周凸部(37)との間に形成した収容溝(36)と操作ハンドル(2)の裏面との間に、防水パッキン(10)が収容されていると共に、その外周側には保護リング(14)を装着させているから、防水パッキン(10)に、雨水、塵埃、塗料、光等の外的衝撃や刺激が直接影響することがなく、防水パッキン(10)を構成しているＥＰＤＭ又はシリコンゴムの耐光性、耐オゾン性等の外的影響に対する耐久性を向上させることができると共に、ガス栓本体(31)内の防水効果・防塵効果が一層向上する。 In the gas stopper having the above-mentioned configuration, the housing groove (36) formed between the annular convex portion (35) and the outer peripheral convex portion (37) on the top surface of the tubular portion (33) of the gas stopper main body (31) is operated. The waterproof packing (10) is housed between the handle (2) and the back side of the handle (2), and the protective ring (14) is attached to the outer circumference of the handle (2). Improves durability against external influences such as light resistance and ozone resistance of EPDM or silicone rubber that constitutes the waterproof packing (10) without being directly affected by external impacts or stimuli such as paints and light. In addition, the waterproof and dustproof effects in the gas stopper body (31) are further improved.
さらに、万一、微量の水や異物が、防水パッキン(10)を超えて入り込むことがあったとしても、これら水や異物は、環状凸部(35)と、その頂面に設けられたＯリング(1)で確実に塞き止められ、ガス栓本体(31)の内部に浸入することはない。よって、ガス栓本体(31)のせん収容部(30)とせん(3)の摺動面の錆付きによる固着を確実に防止することができる。 Furthermore, even if a small amount of water or foreign matter may enter beyond the waterproof packing (10), these water and foreign matter are provided on the annular convex portion (35) and on the top surface thereof. It is securely blocked by the ring (1) and does not enter the inside of the gas stopper body (31). Therefore, it is possible to reliably prevent the sliding surfaces of the gas accommodating body (31) and the gas accommodating part (30) from sticking due to rusting.
上記構成のガス栓の操作ハンドル(2)を回動させると、せん(3)は、操作軸(34)(34)が操作ハンドル(2)の係合部(24)(24)で回動方向に押されることにより、せん収容部(30)内にて、操作ハンドル(2)と同方向に回動することとなり、ガス流路(31a)を開閉することができる。 When the operation handle (2) of the gas stopper having the above configuration is rotated, the operation shaft (34) (34) of the spiral (3) is rotated by the engaging portions (24) (24) of the operation handle (2). By being pushed in the direction, it is rotated in the same direction as the operation handle (2) in the spiral accommodating portion (30), and the gas flow path (31a) can be opened and closed.
この操作ハンドル(2)の開閉操作の際に、操作ハンドル(2)の一部に偏った押圧力が加えられた場合、その押圧力は、環状凸部(35)と頂面と環状凹溝(20)の上端底部との間に介在させたＯリング(1)が受けることとなる。Ｏリング(1)の変形能は防水パッキン(10)に比べて小さいから、防水パッキン(10)に影響が及ぶことはなく、元の均一な圧縮力が作用した状態に維持される。このように、操作ハンドル(2)に偏った押圧力が加えられ続けても、Ｏリング(1)が対抗して作用することとなり、防水パッキン(10)に偏った圧縮力が作用しないので、操作ハンドル(2)の操作によって防水パッキン(10)が変形したり損傷したりすることはなく、防水性が劣化することはない。
よって、防水パッキン(10)の耐久性が向上し、屋外や厨房等、防水性の必要な個所に長期にわたって使用することができるガス栓を提供することができる。
When a biased pressing force is applied to a part of the operating handle (2) during the opening/closing operation of the operating handle (2), the pressing force is the annular convex portion (35), the top surface and the annular concave groove. The O-ring (1) interposed between the upper end and the bottom of (20) is received. Since the deformability of the O-ring (1) is smaller than that of the waterproof packing (10), the waterproof packing (10) is not affected and the original uniform compression force is maintained. In this way, even if a biased pressing force is continuously applied to the operation handle (2), the O-ring (1) acts against each other, and the biased compression force does not act on the waterproof packing (10). The waterproof packing (10) is not deformed or damaged by the operation of the operation handle (2), and the waterproof property is not deteriorated.
Therefore, the durability of the waterproof packing (10) is improved, and it is possible to provide a gas stopper that can be used for a long period of time in places where waterproofness is required, such as outdoors and in kitchens.
また、ガス栓本体(31)の内部は、Ｏリング(1)によって気密性も確保されるから、せん(3)とせん収容部(30)との摺動部に傷が生じたり、異物が付着することにより、前記摺動面から僅かなガス漏れが生じることがあっても、ガス栓外部へのガス漏れは防止することができる。
さらに、ガス栓周辺の温度変化によって、ガス栓が熱せられたり、冷やされたりすることにより、ガス栓本体(31)の内外に圧力差が生じ、防水パッキン(10)に付着した水が、ガス栓本体(31)内に吸引され易い状況となっても、防水パッキン(10)とＯリング(1)との間には、環状凹溝(20)の幅広溝部(20b)による空間がある上に、その上方の幅狭溝部(20a)にはＯリング(1)が圧入されているから、ガス栓本体(31)への水の浸入は確実に防止でき、ガス栓本体(31)内に錆が発生し、操作ハンドル(2)の回動操作が滞るような不都合を生じさせることはない。
Further, since the O-ring (1) ensures the airtightness inside the gas stopper body (31), the sliding part between the bellows (3) and the bellows accommodating part (30) may be scratched or foreign matter may be present. Even if a slight gas leak may occur from the sliding surface due to the adhesion, the gas leak to the outside of the gas plug can be prevented.
Further, due to a change in temperature around the gas stopper, the gas stopper is heated or cooled, causing a pressure difference between the inside and outside of the gas stopper main body (31), and water attached to the waterproof packing (10) becomes gas. Even if it is easily sucked into the plug body (31), there is a space due to the wide groove portion (20b) of the annular groove (20) between the waterproof packing (10) and the O-ring (1). In addition, since the O-ring (1) is press-fitted into the narrow groove portion (20a) above it, intrusion of water into the gas stopper body (31) can be reliably prevented, and the inside of the gas stopper body (31) can be reliably prevented. Rust does not occur, which does not cause the inconvenience of the rotation of the operation handle (2) being delayed.
上記実施の形態では、Ｏリング(1)は、環状凸部(35)の頂面と、環状凹溝(20)の上端底部との間に設ける構成としたが、図３に示すように、環状凹溝(20)の内方に連続するように小環状溝(21)を設け、環状凸部(35)の内周面と、係合フランジ部(32)の頂面(33)と、小環状孔(21)で囲まれる空間内に設ける構成としても良い。 In the above embodiment, the O-ring (1) is provided between the top surface of the annular convex portion (35) and the upper end bottom portion of the annular concave groove (20), but as shown in FIG. A small annular groove (21) is provided so as to be continuous inward of the annular concave groove (20), the inner peripheral surface of the annular convex portion (35), and the top surface (33) of the engaging flange portion (32), It may be provided in a space surrounded by the small annular hole (21).
(1) ・・・・・・・・・Ｏリング（第２パッキン）
(10)・・・・・・・・・防水パッキン
(2) ・・・・・・・・・操作ハンドル
(3) ・・・・・・・・・せん
(30)・・・・・・・・・せん収容部
(31)・・・・・・・・・ガス栓本体
(33)・・・・・・・・・筒状部
(1) ・・・・・・・O-ring (second packing)
(10)・・・・・・Waterproof packing
(2) ・・・・・・・Operating handle
(3) ・・・・・・・
(30)・・・・・・・・Sensor storage
(31)・・・・・・・・Gas plug body
(33)・・・・・・Cylindrical part
Claims (3)
前記防水パッキンよりも所定の間隔をおいて内側に位置する前記筒状部と前記操作ハンドルとの間に、前記防水パッキンより小径の環状の第２パッキンを設け、
前記防水パッキンはガス栓に対する外部からの影響に耐性のある材質とし、第２パッキンはガス栓の内部からの影響に耐性のある材質としたことを特徴とするガス栓。 A tubular portion is continuously provided at the open end of the wire accommodating portion of the gas stopper body, and an operation handle for rotating the gas accommodated in the gas accommodating portion is provided with respect to the cylindrical portion. In a gas stopper rotatably mounted in a retaining state and having an annular waterproof packing interposed between the tubular portion and the operation handle,
An annular second packing having a diameter smaller than that of the waterproof packing is provided between the operating portion and the tubular portion that is located on the inner side with a predetermined distance from the waterproof packing.
A gas plug, wherein the waterproof packing is made of a material resistant to an external influence on the gas plug, and the second packing is made of a material resistant to an internal influence of the gas plug.
The gas plug according to claim 1 or 2, wherein the second packing is an O-ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016199071A JP6732183B2 (en) | 2016-10-07 | 2016-10-07 | Gas tap |
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| JP2016199071A JP6732183B2 (en) | 2016-10-07 | 2016-10-07 | Gas tap |
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| JP2018059602A JP2018059602A (en) | 2018-04-12 |
| JP6732183B2 true JP6732183B2 (en) | 2020-07-29 |
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