201132379 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種逃生口罩結構，特別是指一種用於火災 現場之逃生口罩結構，其兼具延長逃生時間及降低濃煙之傷害 等優點及功效。 13 【先前技術】 一般火災現場都會產生濃煙，且濃煙因火災現場材質的不 同’可能含有百種以上的成分(例如：一氧化碳、氫化氰，還 有一些高溫的碳粒子），對人體會造成窒息、昏迷、刺激或中 毒等危害。 比火災產生的高溫，濃煙更早達到令人難以忍受的程度， 在火災現場的逃生過程中，死傷幾乎都是因濃煙造成。 在逃生過程中，雖可配戴口罩來過濾吸入煙霧，但火災現 場之煙霧濃度很高，單靠口罩來達到過濾，並無法達到良好的 效果，使得使用者仍會吸入煙霧濃度高之氣體，進而造成傷 害，增加逃生的困難，甚至於短時間内造成窒息、昏迷。 因此’有必要研發新產品’以解決上述缺點及問題。 【發明内容】 本發明之目的在於提供一種逃生口罩結構，其I具延 伽及功效，用贿決習知技術耗 本發明解決上述問題之技術手段係提供一種逃生口罩結 構，其包括： 'α -外罩部’其係具有—開口部、—抽氣裝置及 該内部空間與外界相連通；該抽氣裝置係設 intit’如將該外罩部外之氣體吸人該内部空 部，用以供應該錢“伽所需之電力；有供電 3 201132379 一過濾部，其係設於該抽氣裝置上，用以過濾由該抽 置吸入該内部空間之氣體。 、& 本發明之上述目的與優點，不難從下述所選用實施例之詳 細說明與附圖中，獲得深入瞭解。 兹以下列實施例並配合圖式詳細說明本發明於後： 【實施方式】 如第、弟一及第三圖所示，本發明係為一種逃生口罩^士 構，其包括： 早、、、° 一外罩部20，其係具有一開口部21、一抽氣裝置22及一 内部空間23 ;該開口部21係使該内部空間23與外界相連通； 該抽氣裝置22係設於該外罩部2〇之下方，用以將該外罩部 20外之氣體吸入該内部空間23 ;該外罩部2〇係貼合於一使用 者7〇之臉部並罩住口鼻，使該使用者7〇之口鼻位於該内部空 間23中。又’該抽氣裝置22係設有一供電部221(其係可為一 般電池或充電電池），用以供應該抽氣裝置22作動所需之電 力，關於該抽氣裝置22，其係可為離心扇、軸心扇或其他吹 氣機等。 ' 一過濾部20A，其係設於該抽氣裝置22上，用以過濾由 該抽氣裝置22吸入該内部空間23之氣體。 “ 如第二及第三圖所示’本發明在使用上，係將胸口附近之 氣體過濾後吸入該内部空間23中’再由該開口部21排出，以 達到該内部空間23之氣體流動循環，供該使用者7〇進行呼 吸；由於胸口附近之氣體在由該抽氣裝置22吸入該内部空間 23前，已經由該過濾部20A進行過濾，因此，可有效降低氣 體中之有害物質對該使用者70之傷害。 更詳細的說’本發明係適用於充滿濃煙之火災現場；關於 該抽氣裝置22及該過濾部20A之設計位置，係可將胸口附近 之氣體過濾後吸入該内部空間23，而這樣的設計，係利用煙 霧隨氣體之流動所產生之兩種特點，將煙霧濃度較低之氣體進 一步過濾後吸入該内部空間23中： 、 201132379 [1] 遇阻礙時濃度隨氣流降低β如第四圖所示，在氣流4〇 碰到物體30(或人體)時，係會繞過物體30，進而產生氣流4〇 上的變化；當氣流40中包括大量的煙霧並碰到人體時，煙霧 係隨氣流40之變化而繞過人體，使得接近人體表面之煙霧濃 度會受氣流40之牽引而降低(微粒子較少）。 [2] 位置愈低濃度愈低。一般來說，熱氣體係向上流動， 而火災現場所產生之高溫，係使得煙霧隨氣流而往上流動，也 就是說，高度愈高，則濃煙之濃度愈高，而高度愈低，則濃度 也相對較低；在本發明之設計上，係將該抽氣裝置22設於該 外罩部20之下方，以抽取頸部以下之胸口附近氣體，使煙霧 浪度較低之氣體經由該過濾部20Α過遽後進入該内部空間 23 ’進一步稀釋煙霧之濃度。 由以上說明可知，胸口附近之煙霧係位於較低之位置，煙 霧濃度較頸部以上低，且氣流4〇繞過胸口時係會進一步降低 煙ί濃度，使得胸口附近之氣體具有較低之煙霧濃度，形成一 低，度煙霧區50(如第五圖所示）；因此，該低濃度煙霧區5〇 之氣體，其煙霧濃度已相對較低，在氣體進入該内部空間23 ，，係再藉由該過濾部20Α之過濾，使得該使用者7〇吸入之 氣體’已經過氣流牵引及該過濾部2〇Α過濾等兩道程序來降 低煙霧濃度’進而將傷害降至最低。 w 六Α圖所示’當使用者於一佈滿高濃度煙霧80之火 災現，前進移動時，位於胸口附近係形成一低濃度煙霧區5〇， =低/辰度煙霧區50係存在著濃度較低之低濃度煙霧81 ;如第 六，圖所示’該抽氣裝置22將胸口附近之含有低濃度煙霧81 之氣體吸人軸部空間23前，餘由該碱部2GA過滤，可 ，二步降低煙霧濃度’形成一稀釋後煙霧82由該使用者7〇之 f官71吸入’將煙霧之傷害降低；當然，當該内部空間23之 氣?Ϊ該開°部21排出後，可驅散前方之濃煙及熱氣，形成 -亂體排出空間21卜避糾過濃煙霧及熱氣撲鼻而來，而降 低該過濾觀之效能(濃煙微粒會使猶材料負載快速，阻抗 201132379 急遽上昇；而毒氣會使吸附材料提早吸附飽和）。 因此，在火炎發生時，配戴本發明之具抽氣裝置之口罩結 構，可有效降低吸入肺部之煙霧濃度，避免短時間内因濃煙^ 會傷，進而延長使用者逃生之時間。 ，外’本發明又可搭配一口罩10使用，先將該口罩10配 戴於该使用者之臉部，再配戴本發明之逃生口罩結構，達到多 重過遽之效果，如第七A及第七B圖所示，胸口附近之低濃 度煙霧區50之低濃度煙霧81經由該過濾部2〇A過濾而進入 該内部空間23後，係形成一稀釋後煙霧82，再經由該口罩1〇 之過濾後，可使氣體中所含之煙霧濃度更低，形成一微濃度稀 ，煙霧83供該使用者70之氣管71吸入，將煙霧之傷害降至 敢低，當然，該開口部21所形成之氣體排出空間211，係可 避免因過濃煙霧及熱氣撲鼻而來，而降低該過遽2〇a及該口 罩10之效能。 綜上所述，本發明之優點及功效可歸納為： [1] 降低濃煙之傷害。一般火災現場之煙霧濃度很高，無 法單以口罩來過濾煙霧，使得使用者容易受到濃煙的傷害，i 重時甚至造成窒息、昏迷，以致無法脫困；而本發明係於胸口 附近抽取煙霧濃度較低之氣體，並經由過濾後進入該内部空間 23，將濃煙之傷害降至最低。 [2] 延長逃生時間。一般火災現場之煙霧濃度很高，若單 以口罩來過濾煙霧，則使用者仍會吸入較高濃度之煙霧，容易 於短時間内產生窒息、昏迷，以致無法脫困；而本發明係可使 該使用者吸入煙霧濃度較低之氣體，對人體造成傷害的時間點 也相對往後延長，可使該使用者具有更多的逃生時間，故，具 有延長逃生時間之優點。 ^ 以上僅是藉由較佳實施例詳細說明本發明，對於該實施例 所做的任何簡單修改與變化，皆不脫離本發明之精神與範圍。 由以上詳細說明，可使熟知本項技藝者明瞭本發明的確可 達成前述目的，實已符合專利法之規定，爰提出發明專利申請。 201132379 【圖式簡單說明】 第一圖係本發明之逃生口罩結構之分解示意圖 第二圖係本發明之逃生口罩結構之示意圖 第三圖係本發明之外罩部之剖視示意圖 第四圖係氣流經過一物體之流動變化之示意圖 第五圖係本發明之低濃度煙霧區之示意圖。201132379 VI. Description of the Invention: [Technical Field] The present invention relates to an escape mask structure, and more particularly to an escape mask structure for a fire scene, which has the advantages of prolonging escape time and reducing smoke damage. efficacy. 13 [Prior Art] In general, smoke will be generated at the scene of the fire, and the smoke may contain more than 100 kinds of components (such as carbon monoxide, hydrogen cyanide, and some high-temperature carbon particles) due to the different materials on the fire site. Causes suffocation, coma, irritation or poisoning. Compared with the high temperature generated by fire, the smoke reaches an unbearable level earlier. In the escape process of the fire scene, almost all deaths and injuries are caused by heavy smoke. In the escape process, although masks can be used to filter the inhaled smoke, the smoke concentration at the fire site is very high. The mask is used to achieve the filtration, and the good effect is not achieved, so that the user still inhales the gas with high smoke concentration. In turn, it causes injury, increases the difficulty of escape, and even causes suffocation and coma in a short time. Therefore, it is necessary to develop new products to solve the above shortcomings and problems. SUMMARY OF THE INVENTION The object of the present invention is to provide an escape mask structure, which has a continuation effect, and the technical means for solving the above problems by the prior art is to provide an escape mask structure, which includes: 'α - an outer cover portion - having an opening portion, - an air suction device and the inner space communicating with the outside; the air suction device is provided with an intit" such that the gas outside the outer cover portion is sucked into the inner hollow portion for The power required for the gamma is available; there is a power supply 3 201132379, a filter unit, which is disposed on the air suction device for filtering the gas sucked into the inner space by the pumping. The above object of the present invention is Advantages, it is not difficult to obtain a detailed understanding from the following detailed description of the embodiments and the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings: FIG. As shown in FIG. 3, the present invention is an escape mask structure comprising: an early cover portion 20 having an opening portion 21, an air extracting device 22 and an inner space 23; Department 21 The internal space 23 is connected to the outside; the air extracting device 22 is disposed below the outer cover portion 2〇 for sucking the gas outside the outer cover portion 20 into the inner space 23; the outer cover portion 2 is attached The user's face is covered with a mouth and nose, so that the user's mouth and nose are located in the internal space 23. In addition, the air extracting device 22 is provided with a power supply portion 221 (which can be a general battery) Or a rechargeable battery for supplying power required for the operation of the air extracting device 22, and the air extracting device 22 may be a centrifugal fan, a shaft fan or other air blower, etc. 'a filter unit 20A, It is disposed on the air extracting device 22 for filtering the gas sucked into the inner space 23 by the air extracting device 22. "As shown in the second and third figures, the invention is used in the vicinity of the chest. After being filtered, it is sucked into the internal space 23 and then discharged by the opening portion 21 to achieve a gas flow cycle of the internal space 23 for the user to breathe; since the gas near the chest is inhaled by the suction device 22 Before the internal space 23, it has been performed by the filter unit 20A. User injury, therefore, can effectively reduce the harmful substances in the gas in the 70's. More specifically, the present invention is applicable to a fire scene filled with smoke; with respect to the design position of the air extracting device 22 and the filter portion 20A, the gas near the chest can be filtered and then sucked into the internal space 23, and such The design uses the two characteristics of smoke and gas flow to further filter the gas with lower smoke concentration and then inhale into the internal space 23: , 201132379 [1] Concentration decreases with airflow when obstructed β as shown in the fourth figure As shown, when the airflow 4 hits the object 30 (or the human body), the object 30 is bypassed, thereby generating a change in the airflow 4; when the airflow 40 includes a large amount of smoke and hits the human body, the smoke is accompanied by The change in airflow 40 bypasses the human body such that the concentration of smoke near the surface of the human body is reduced by the traction of the airflow 40 (less microparticles). [2] The lower the position, the lower the concentration. Generally speaking, the hot gas system flows upwards, and the high temperature generated by the fire scene causes the smoke to flow upward with the air flow, that is, the higher the height, the higher the concentration of the thick smoke, and the lower the height, the concentration It is also relatively low; in the design of the present invention, the air extracting device 22 is disposed under the outer cover portion 20 to extract gas near the chest below the neck portion, and the gas having a lower smoke wave velocity is passed through the filter portion. After 20 Α, enter the internal space 23 'to further dilute the concentration of smoke. As can be seen from the above description, the smoke near the chest is at a lower position, the smoke concentration is lower than the neck, and the airflow 4 bypasses the chest to further reduce the concentration of the smoke, so that the gas near the chest has a lower smoke. Concentration, forming a low, degree smoke zone 50 (as shown in Figure 5); therefore, the low concentration smoke zone 5 〇 gas, its smoke concentration has been relatively low, in the gas into the internal space 23, The filtering of the filter unit 20 causes the user 7 to inhale the gas 'has been pulled by the airflow and the filter 2 filter to reduce the smoke concentration' to minimize the damage. w Six Diagrams' When the user is in a fire filled with high-concentration smoke 80, when moving forward, a low-concentration smoke area is formed near the chest, and there is a low-initial smoke area of 50. The low-concentration smoke 81 having a lower concentration; as shown in the sixth figure, the air extracting device 22 sucks the gas containing the low-concentration smoke 81 near the chest before the shaft space 23, and the remaining portion is filtered by the alkali portion 2GA. , the second step of reducing the smoke concentration 'to form a diluted smoke 82 by the user 7 〇 官 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 71 It can dispel the smoke and hot air in front of it, forming a chaotic body to discharge space 21, avoiding the smog and hot air, and reducing the efficiency of the filtering concept (the thick smoke particles will make the material load fast, the impedance 201132379 rises sharply And the poison gas will cause the adsorbent material to adsorb and saturate early). Therefore, when the fire inflammation occurs, the mask structure with the air suction device of the present invention can effectively reduce the concentration of smoke inhaled into the lungs, and avoid the injury caused by heavy smoke in a short time, thereby prolonging the time for the user to escape. The invention can be used with a mask 10, and the mask 10 is first worn on the face of the user, and then the escape mask structure of the invention is worn to achieve multiple effects, such as the seventh and As shown in the seventh figure B, the low-concentration smoke 81 of the low-concentration smoke area 50 near the chest is filtered through the filter unit 2A to enter the internal space 23, and a diluted smoke 82 is formed, and then through the mask 1 After filtering, the concentration of the smoke contained in the gas can be made lower, forming a micro-concentration, and the smoke 83 is sucked into the trachea 71 of the user 70 to reduce the damage of the smoke to a low level. Of course, the opening portion 21 The gas discharge space 211 is formed to avoid the excessive smoke and hot air, thereby reducing the performance of the filter and the mask 10. In summary, the advantages and effects of the present invention can be summarized as follows: [1] Reduce the damage of smoke. Generally, the concentration of smoke in the fire scene is very high, and it is impossible to filter the smoke by the mask alone, so that the user is easily exposed to the smoke, and even when it is heavy, it may cause suffocation and coma, so that the smoke cannot be removed; and the present invention extracts the smoke concentration near the chest. The lower gas, and filtered into the interior space 23, minimizes the damage of smoke. [2] Extend the escape time. Generally, the smoke concentration at the fire scene is very high. If the mask is used to filter the smoke, the user will still inhale a higher concentration of smoke, which is easy to produce suffocation and coma in a short time, so that the patient cannot get out of sleep. When the user inhales a gas with a low smoke concentration, the time at which the human body is injured is also extended relative to the back, which allows the user to have more escape time, and therefore has the advantage of prolonging the escape time. The above is a detailed description of the present invention by way of a preferred embodiment, and without departing from the spirit and scope of the invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can be achieved by the present invention, which is in accordance with the provisions of the Patent Law. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is an exploded view of the structure of the escape mask of the present invention. The second drawing is a schematic view of the structure of the escape mask of the present invention. The third figure is a schematic cross-sectional view of the outer cover of the present invention. Schematic diagram of the flow through an object The fifth diagram is a schematic representation of the low concentration smoke zone of the present invention.
第六A圖係本發明之動作一之示意圖 第六B圖係本發明之動作二之示意圖 第七A圖係本發明第二實施例之動作一立 第七B圖係本發明第二實施例之動 T$圖 【主要元件符號說明】 一不心圖 2〇外罩部 21開口部 22抽氣裝置 23内部空間 4〇氣流 70使用者 80高濃度煙霧 82稀釋後煙霧 10 口罩 20A過濾部 211氣體排出空間 221供電部 30物體 50低濃度煙霧區 71氣管 81低濃度煙霧 83微濃度稀釋煙霧6 is a schematic view of the first embodiment of the present invention, a sixth embodiment is a second embodiment of the present invention, and a seventh embodiment is a second embodiment of the present invention. Movement T$ diagram [Main component symbol description] Unscrupulous diagram 2 〇 Cover part 21 Opening part 22 Air suction device 23 Internal space 4 〇 Air flow 70 User 80 High concentration smoke 82 Dilution smoke 10 Mask 20A Filter part 211 gas Discharge space 221 power supply unit 30 object 50 low concentration smoke area 71 air tube 81 low concentration smoke 83 micro concentration dilution smoke