捌、新型說明： 〔新型所屬之技術領域〕 本創作係為-種「具有自動關裝瓦斯關」，其主要在環境溫 度超過安全限度以上時，能自動關閉瓦斯開關，防止火災擴大，有利滅火 者。 〔先前技術〕 瓦斯是一種廉價又便利的燃料，已為每個家庭所使用。當發生火災時， 瓦斯之外洩會造更大的火勢，且更難以滅火0故在意外發生時要能立即關 閉瓦斯，才能避免火災的火勢被擴大。市售瓦斯開關€設有超流量關閉 裝置，可在瓦斯流量異常時，立即封閉瓦斯流路，使瓦斯不再輸出。當爐 火熄滅，以及瓦斯輸送管破裂時，都會造成瓦斯流量異常。藉由該種超流 量關閉裝置，已可提供部份的安全保證。 然而，有時在發生火災的現場中，若瓦斯的輸送速度還是在正常狀態 下時，該瓦斯開關就不會產生封閉瓦斯輸送管路的作用。當火災中瓦斯還 是不斷地輸出時，很容易使火勢擴大而造成更大的災害。市面上有一種瓦 斯開關設置有過熱遮斷裝置，如申請第88203059號「瓦斯開關安全閥」， 如第一圖所示，其係在瓦斯開關10的瓦斯輸送流路11中設置有超流量遮 斷裝置12，及過熱遮斷裝置13。當瓦斯流量異常時，該超流量遮斷裝置12 會發生作用，而封閉瓦斯流路。當環境發生火災造成溫度過高時，該過熱 遮斷裝置13會發生作用而封閉瓦斯流路11，如第二圖所示。 由於該第一圖所示的瓦斯開關10在瓦斯流路11中設置過多的零組 件，對瓦斯輸送壓力造成過多的阻擋，使所送出的瓦斯壓力不夠，則用戶 的爐火會有過小，而不易燒煮食物。是以，該第一圖所示之瓦斯開關是不 適使用的。 〔新型内容〕 申請人今提供一種「具有自動閉鎖裝置的瓦斯開關」，其可在環境溫 度過高時，立即關閉瓦斯，避免瓦斯外洩，安全性更高。 本創作所提供的「具有自動閉鎖裝置的瓦斯開關」，其為一種設置在 流路以外的裝置，其完全不影響瓦斯的輸送壓力，使瓦斯送達壓力適於人 們使用。 本創作所提供的「具有自動閉鎖裝置的瓦斯開關」，其主要設有一由 感熱金屬片承托之鋼珠，該鋼珠係制定一閥桿之位置，該閥桿控制一掣動 件之位置，該掣動件係制壓一抗扭彈簧。當該感熱金屬片遇熱變形時，會 令鋼珠失去對閥桿的制定力。該閥桿則藉由一抗壓彈簧之推力而移動，造 成該掣動件擺動，而使該掣動件無法維持在制定該抗扭彈簧的位置，再藉 由該抗扭彈簧的恢復力’對瓦斯開關之旋塞產生推力，而將該旋塞推回閉 鎖瓦斯流道的狀態。 本創作所提供的「具有自動閉鎖裝置的瓦斯開關」，其設有一閥座以 供感熱金屬片、鋼珠、閥桿、掣動件各組件組裝，並設定其間各組件之相 對位置。 〔實施方式〕 茲列舉一實施例並配合圖式，詳述本創作之構造特徵與功效。 M246538 請參閱第三、四圖，本創作所揭示提供的「具有自動閉鎖裝置的瓦斯 開關」，係藉由一旋塞3〇來控制該瓦斯開關20的瓦斯流道21的暢通與否。 該旋塞30係藉由一旋鈕22之轉動而轉動。當該旋塞30上之通孔31與瓦 斯開關20之瓦斯流道21呈相通狀態時，則為輸送瓦斯的狀態，如第三圖 所示之狀態。當該旋塞30切斷該瓦斯開關20之瓦斯流道21時，則為關 閉瓦斯的狀態。此的習知一般技術，亦非本案的技術特徵。 上述瓦斯開關20上容置該旋塞的位置下方係連設^一槽孔23，以容置 一閥座40。該閥座40之頂面中央凸設一軸管41，該旋塞30的底面中央 相對應設置一凸轴32。藉該凸轴32係插入該轴管41内，以導正該閥座4〇 與旋塞30的中心位置。請參閱第五、六圖，該閥座4〇頂面之軸管41外 係套設一抗扭彈簧50，該抗扭彈簧之二足51、52，係分別頂靠於該閥座4〇 頂面的一偏心凸銷42 ,以及該旋塞30底面的一偏心凸銷33，使得該抗扭 彈簧50具有將該旋塞30推酬呈封閉該瓦斯流道21狀態下的功能。 該閥座40設有一水平狀之閥道43以容置一抗壓彈簧6〇及一間桿7〇， 而閥桿70之外端71係凸出該閥道43外。該閥座4〇上係樞設一掣動件8〇， 該掣動件8〇的樞接點81係在該閥道43外端之正上方。該掣動件8〇的頂 端82高於該樞接點8卜底端83低於該樞接點&，且該擎動件8〇的重心 位置係低於該_點81 ’使該f動件81在常態時其下端係依靠在該閥桿 70之側邊。該掣動件80之上端係可對抗扭彈簧5〇的一足52產生止擔的 作用’使該足52不會對該旋塞3〇之偏心凸銷33產生推力。 該閥座4G之底部係固設—感熱金屬片44，該感熱金屬片44上承托一 M246538 鋼珠45。在常溫下，該感熱金屬片44中央為向上隆起狀，而將該鋼珠45 之上端推入該閥道43内’以對該闕桿7〇產生卡住的定位作用。當該感熱 金屬片44雜雜時，其中央部份即成為向下凹陷的狀§，職鋼珠奶 會略為下沉，而使上端脫出該閥道43外，如第七圖所示。則閥桿7〇失去 被制定力，並藉由該抗壓彈著60的恢復力，而向間道43外推出。 該閥桿40設有兩圈環溝72、73，靠近闕桿7〇 _的為第^， 靠進閥桿70外端的環溝為第二環溝73。該第一環溝72係在間道犯内供 鋼珠45的卡入’而制定該閥桿70在常態下的位置。該擎動件8〇在常態 下係依靠在該閥桿70之外端71。 該瓦斯開關20首次將旋塞30轉動到開啟的狀態時，係將該抗扭彈箸 50的足52帶動’產生扭轉該抗扭彈簧5〇 #作用。該抗扭彈酱5〇的足 52在觸動的該掣動件80之上端82時，會令該掣動件8〇以植接點81為中 心而轉動。該掣動件8G此刻的轉動係令其下端遠離該閥桿7()，而上端高 度呈現降低的現象，使得該足52可跨過該掣動件80的上端82。當該足记 完全跨過該掣動件8〇之上端82後，該掣動件8G即自動恢復成下端83依 靠在該閥桿70外端的狀態，晴，該掣動件8Q的上端&即對跨過的一 足52產生止擋的作用。爾後，正常的轉動旋塞3〇作瓦斯的啟閉動作時， 都不會啟動該掣動件8〇、閥桿70、鋼珠45。為了方便該抗扭彈簧5〇之足 52跨過該掣動件80之上端82，該掣動件8〇上端82之外緣84設計為斜 線狀或圓弧狀者。 當瓦斯開關在P雜雜態下發生火災時，會_境溫度升高致使感熱 M246538 金屬片44膨漲，新型 Description of the new type: [Technical field to which the new type belongs] This creation is a kind of "with automatic shut-off gas shut-off", which can automatically turn off the gas switch when the ambient temperature exceeds the safety limit to prevent the expansion of the fire and facilitate fire suppression By. [Previous Technology] Gas is a cheap and convenient fuel that has been used by every household. When a fire occurs, gas leaking out will create a larger fire and it is more difficult to extinguish the fire. Therefore, when the accident occurs, the gas must be shut down immediately to prevent the fire from expanding. The commercially available gas switch is equipped with an over-flow shut-off device, which can immediately close the gas flow path when the gas flow is abnormal, so that the gas is no longer output. When the fire is extinguished and the gas pipeline is ruptured, the gas flow will be abnormal. With this kind of super-fluid shut-off device, part of the safety guarantee can already be provided. However, sometimes at the scene of a fire, if the gas transportation speed is still normal, the gas switch will not have the effect of closing the gas transportation pipeline. When gas is continuously output during a fire, it is easy to expand the fire and cause even greater disasters. There is a gas switch on the market that is equipped with an overheating interrupting device. For example, application No. 88203059 "gas switch safety valve", as shown in the first figure, it is provided with a super-flow shield in the gas delivery flow path 11 of the gas switch 10. Breaking device 12, and overheating blocking device 13. When the gas flow is abnormal, the over-flow blocking device 12 will work and close the gas flow path. When the temperature is too high due to a fire in the environment, the overheating blocking device 13 acts to close the gas flow path 11, as shown in the second figure. Because the gas switch 10 shown in the first figure is provided with too many components in the gas flow path 11, the gas transmission pressure is blocked too much, so that the gas pressure sent is insufficient, and the user's fire will be too small, and Not easy to cook. Therefore, the gas switch shown in the first figure is not suitable for use. [New content] The applicant now provides a "gas switch with automatic locking device", which can immediately shut down the gas when the ambient temperature is too high, to prevent gas leakage and higher safety. The "gas switch with automatic locking device" provided in this creation is a device installed outside the flow path, which does not affect the gas delivery pressure at all, making the gas delivery pressure suitable for human use. The "gas switch with automatic locking device" provided by this creation is mainly provided with a steel ball supported by a heat-sensitive metal sheet. The steel ball specifies the position of a valve stem, and the valve stem controls the position of a detent. The detent is a compression-resistant torsion spring. When the heat-sensitive metal sheet is deformed by heat, the steel ball will lose its setting force on the valve stem. The valve stem is moved by the thrust of a compression spring, causing the detent to swing, so that the detent cannot be maintained at the position of the torsion spring, and then the restoring force of the torsion spring is used. A thrust is generated to the plug of the gas switch, and the plug is pushed back to the state of closing the gas flow channel. The "gas switch with automatic locking device" provided in this creation is provided with a valve seat for assembling the components of the thermal metal sheet, steel ball, valve stem, and detent, and setting the relative position of each component in between. [Embodiment] An example is given in conjunction with the drawings to detail the structural features and effects of this creation. M246538 Please refer to the third and fourth figures. The “gas switch with automatic locking device” provided by this creation is controlled by a plug 30 to control the flow of the gas flow passage 21 of the gas switch 20. The cock 30 is rotated by the rotation of a knob 22. When the through-hole 31 in the cock 30 and the gas flow passage 21 of the gas switch 20 are in a communicating state, it is in a state of conveying gas, as shown in the third figure. When the cock 30 cuts off the gas flow passage 21 of the gas switch 20, it is in a gas-closed state. This conventional technique is not the technical feature of this case. A slot 23 is connected below the position of the gas switch 20 where the cock is received to accommodate a valve seat 40. A shaft tube 41 is protruded from the center of the top surface of the valve seat 40, and a convex shaft 32 is correspondingly provided from the center of the bottom surface of the cock 30. The convex shaft 32 is inserted into the shaft tube 41 to guide the center position of the valve seat 40 and the cock 30. Referring to the fifth and sixth figures, a torsion spring 50 is sleeved on the shaft tube 41 on the top surface of the valve seat 40, and the two feet 51 and 52 of the torsion spring abut against the valve seat 4 respectively. An eccentric convex pin 42 on the top surface and an eccentric convex pin 33 on the bottom surface of the plug 30 make the torsion spring 50 have the function of pushing the plug 30 to close the gas flow channel 21. The valve seat 40 is provided with a horizontal valve channel 43 to accommodate a compression spring 60 and an intermediate rod 70, and an outer end 71 of the valve rod 70 projects out of the valve channel 43. A locking member 80 is pivotally arranged on the valve seat 40, and a pivot contact point 81 of the locking member 80 is directly above the outer end of the valve channel 43. The top 82 of the detent member 80 is higher than the pivot joint 8 and the bottom end 83 is lower than the pivot joint & and the position of the center of gravity of the actuator 8 is lower than the _point 81 'so that the f The lower end of the moving member 81 rests on the side of the valve stem 70 in the normal state. The upper end of the detent 80 is capable of resisting a foot 52 of the torsion spring 50, and the foot 52 does not generate a thrust force on the eccentric pin 33 of the cock 30. The bottom of the valve seat 4G is fixed with a heat-sensitive metal sheet 44 which supports a M246538 steel ball 45. At normal temperature, the center of the heat-sensitive metal sheet 44 is upwardly bulged, and the upper end of the steel ball 45 is pushed into the valve channel 43 'so as to cause the positioning of the pin 70. When the heat-sensitive metal sheet 44 is mixed, its central portion becomes a downward depression §, the steel ball milk will sink slightly, and the upper end will be out of the valve channel 43, as shown in the seventh figure. Then, the valve stem 70 loses its setting force, and is pushed out of the intermediate channel 43 by the restoring force of the compression spring 60. The valve stem 40 is provided with two ring grooves 72 and 73. The ring groove near the stalk 70 is the second ring groove, and the ring groove adjacent to the outer end of the valve rod 70 is the second ring groove 73. The first ring groove 72 is used for engaging the steel balls 45 in the gangster, and the position of the valve stem 70 in the normal state is established. The engine 80 rests on the outer end 71 of the valve stem 70 in a normal state. When the gas switch 20 turns the cock 30 to the open state for the first time, the foot 52 of the anti-torsion spring 50 is driven 'to produce a torsion of the anti-torsion spring 50 °. When the foot 52 of the anti-twisting sauce 50 is touched on the upper end 82 of the stopper 80, the stopper 80 is caused to rotate with the planting contact 81 as the center. The rotation of the stopper 8G at this moment causes the lower end of the stopper 8G to move away from the valve rod 7 (), and the height of the upper end is reduced so that the foot 52 can cross the upper end 82 of the stopper 80. When the footnote completely crosses the upper end 82 of the stopper 80, the stopper 8G automatically recovers to a state where the lower end 83 rests on the outer end of the valve stem 70, and the upper end of the stopper 8Q & That is, it has a stopping effect on the one foot 52 that is crossed. Thereafter, when the normal turning cock 30 is used to open and close the gas, the stopper 80, the valve stem 70, and the steel ball 45 will not be activated. In order to facilitate the foot 52 of the torsion spring 50 to straddle the upper end 82 of the detent 80, the outer edge 84 of the upper end 82 of the detent 80 is designed to be oblique or arc-shaped. When a gas switch fires in the P-hybrid state, the ambient temperature will rise and the heat will be induced.
’當靠近閥桿70的第二 ______ 叫什⑴座生刺疋力。則 以防止該畴7G _外移，«使該掣動 ^扭彈簧50 —足52的狀態，如 即藉由其本身的恢復力而推動該 即會卡入該第二環溝73内，以防止該閥桿 件80的上端82高度降低到無法再擋住該抗扭’When the second ______ near the valve stem 70 is called the spur seat spur force. In order to prevent the domain 7G _ from moving outwards, «make the switch ^ torsion spring 50-the state of the foot 52, if it is pushed by its own restoring force, it will be stuck in the second ring groove 73 to Prevent the height of the upper end 82 of the stem member 80 from being lowered so that it can no longer block the torsion
旋塞3〇底面的偏心凸銷33 ’使職塞3〇轉動，而將該旋塞3。推回封閉 瓦斯流道21的狀態，如第九圖所示。 冬〇閥孝干70第一環溝73與外端71連接部份的外表面係為斜面％，則 餘該閥桿70 __關道43 _，會令動件⑽的下端83會沿 著該斜面74逐漸脫出該第二環溝73，以無礙閥桿7〇推回定位，同時使該 掣動件80回到依靠在閥桿7()外端71的狀態。於瓦斯開關2()上容置該間 座40的槽孔23的壁面設有一穿孔24，以供該閥桿7〇之最外端凸出。是 以’要重新將閥桿70設定在常態的保安狀態下時，可由外部直接將間桿川 推回原處即可。而在_ 70位置設定後的第-次開啟瓦斯時，旋塞3〇的 轉動可將該抗扭彈簧5Q的_足52帶動，並使得該足52可跨職掣動件⑽ 的上端82，使該掣動件80的上端再度對該足52產生止擋的作用。 上述之閥座40係設置在旋塞30的下方，對瓦斯流道中瓦斯的輸送不 產生任何的P且力。_戶在使用瓦斯時，不會發生瓦斯輸出壓力較瓦斯公 司的設定範圍為低的現象。 上述之旋塞30底面中央之凸轴32插入該閥座40頂面之軸管41内， 9 具有導正該閱座40與旋塞3〇相 置的作用，且使閥座40之設置對旋 塞30之轉動沒有負面影響。 綜上所陳’本創作所提供之「具有自動閉鎖裝置的瓦斯開關」，其突 破傳統瓦斯關關的設計原理，而在瓦斯流道外設置過熱時之自動閉鎖瓦斯 的安全裝置，使瓦斯輸送壓力不會因該裝置而降低。如此’可增加使用者 安裝的意願，提高人們使用瓦斯的安全性者。 M246538 〔圖式簡單說明〕 第一圖為習用者之構造圖。 第二圖為第一圖所示習用者因過熱而遮斷瓦斯流道之狀態圖。 第三圖為本創作構造之局部剖示圖。 第四圖為本創作之外觀圖。 第五圖為旋塞與閥座之分解圖。 第六圖為第三圖之6_6剖面圖。 第七圖為本創作閥桿向外凸出之狀態圖。 第八圖為第七圖之8—8剖面圖。 第九圖為抗扭彈簧將旋塞推回成封閉管道的狀態圖。 10··· ...瓦斯開關 11··· ...瓦斯輸送流路 12·.. ...超流量遮斷裝置 13··· ...過熱遮斷裝置 20··· ...瓦斯開關 21··· ...瓦斯流道 22··· …旋钮 23··· …槽孔 30··· ...旋塞 31". ...通孔 32··· ...凸轴 33··· 40··· ...閥座 41". 42··· ...偏心凸銷 43··· ...閥道 50··· ...抗扭彈簧 51··· …足 52··· …足 60··· …抗壓彈簧 M246538 70··· ...閥桿 71··· ...外端 72··· ...第一環溝 73··· 74··. ...斜面 80··· ...掣動件 81... 82··· ...上端 83·.· …下端 84··· ...外緣 12The eccentric pin 33 'on the bottom surface of the cock 30 causes the stopper 3 to rotate, and the cock 3 is rotated. Push back the closed gas flow path 21, as shown in Figure 9. The outer surface of the connecting part of the first ring groove 73 and the outer end 71 of the valve filial stem 70 in winter is a slope%. Then the valve stem 70 __ 关 道 43 _ will cause the lower end 83 of the moving part 沿着 to follow The inclined surface 74 gradually comes out of the second annular groove 73, and is pushed back into position without hindering the valve stem 70, and at the same time, the stopper 80 is returned to the state of leaning on the outer end 71 of the valve stem 7 (). A perforation 24 is provided on the wall surface of the slot 23 of the gas switch 2 () for housing the socket 40, so that the outermost end of the valve stem 70 can protrude. Yes, if you want to reset the valve stem 70 to the normal security state, you can directly push the Mamagawa back to the original position. And when the gas is turned on for the first time after the _70 position is set, the rotation of the cock 30 can drive the _foot 52 of the torsion spring 5Q, and the foot 52 can cross the upper end 82 of the stopper ⑽, so that The upper end of the stopper 80 once again stops the foot 52. The above-mentioned valve seat 40 is arranged below the cock 30, and does not generate any P-force for gas transportation in the gas flow channel. When households use gas, the phenomenon that the gas output pressure is lower than the setting range of the gas company will not occur. The convex shaft 32 in the center of the bottom surface of the above-mentioned plug 30 is inserted into the shaft tube 41 on the top surface of the valve seat 40, 9 has the function of guiding the reading seat 40 and the plug 30, and the setting of the valve seat 40 is opposite to the plug 30. The rotation has no negative effects. To sum up, the "gas switch with automatic blocking device" provided by Chen's creation breaks through the traditional gas shutoff design principle, and a safety device that automatically blocks gas when the gas channel is overheated is installed outside the gas flow path to make the gas transport pressure It will not be lowered by this device. This way 'can increase the user's willingness to install and improve the safety of people using gas. M246538 [Schematic description] The first picture is the structure of the user. The second figure is a state diagram of the user blocking the gas flow path due to overheating shown in the first figure. The third figure is a partial sectional view of the creative structure. The fourth picture is the appearance of the creation. The fifth figure is an exploded view of the plug and the valve seat. The sixth figure is a sectional view taken along the line 6_6 of the third figure. The seventh picture is the state diagram of the creative valve stem protruding outward. The eighth figure is a cross-sectional view taken from 8 to 8 of the seventh figure. The ninth figure is a state diagram of the torsion spring pushing the cock back into a closed pipe. 10 ... Gas switch 11 ... Gas flow path 12 ... Overflow shutoff device 13 ... Overheat shutoff device 20 ... Gas switch 21 ... Gas flow passage 22 ... Knob 23 ... Slot 30 ... Plug 31 ". ... Through-hole 32 ... 33 ... 40 ... Valve seat 41 ". 42 ... Eccentric pin 43 ... Valve path 50 ... Torsion spring 51 ... Foot 52 ... Foot 60 ... Compression spring M246538 70 ... Stem 71 ... Outer end 72 ... First ring groove 73 ... 74 ..... Inclined surface 80 ..... Actuator 81 ... 82 ..... Upper end 83 ......... Lower end 84 ... Outer edge 12