TW202002830A - Motorcycle helmet providing cool and cleaning air - Google Patents

Motorcycle helmet providing cool and cleaning air Download PDF

Info

Publication number
TW202002830A
TW202002830A TW107118404A TW107118404A TW202002830A TW 202002830 A TW202002830 A TW 202002830A TW 107118404 A TW107118404 A TW 107118404A TW 107118404 A TW107118404 A TW 107118404A TW 202002830 A TW202002830 A TW 202002830A
Authority
TW
Taiwan
Prior art keywords
helmet
locomotive
towel
air
item
Prior art date
Application number
TW107118404A
Other languages
Chinese (zh)
Other versions
TWI661787B (en
Inventor
陳志傑
簡愛倫
黃盛修
林志威
Original Assignee
國立台灣大學
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 國立台灣大學 filed Critical 國立台灣大學
Priority to TW107118404A priority Critical patent/TWI661787B/en
Application granted granted Critical
Publication of TWI661787B publication Critical patent/TWI661787B/en
Publication of TW202002830A publication Critical patent/TW202002830A/en

Links

Images

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

A motorcycle helmet providing cool and cleaning air is disclosed. The motorcycle helmet includes: a helmet body, having a window opening and a wearing opening, wherein two sides of the window opening pivotally connect to a goggle; the goggle can pivot to the window opening and seals it; the wearing opening is installed a first connecting device around; there is a ventilation hole on an opening position on the helmet body or the goggle; an ventilation tube with one end connected to the ventilation hole; a PAPR-typed air supplier connected to the other end of the ventilation tube, for providing external air which has been screened to remove particulate matters to the helmet body through the ventilation tube; and a guiding towel made of wind-proof materials, wherein a top end of the guiding towel has a second connecting device and the second connecting device is removably connected to the first connecting device.

Description

提供舒涼潔淨空氣的機車安全帽Locomotive helmet providing cool and clean air

本發明關於一種機車安全帽,特別是一種可提供舒涼潔淨空氣的全罩式機車安全帽。The invention relates to a locomotive helmet, in particular to a full-cover type locomotive helmet that can provide cool and clean air.

根據台灣環境保護署近期的報告,機車尾氣排放之細懸浮微粒(PM2.5)濃度依據車輛品牌與型號可能高達730µg/m3 ;而當待速等待紅綠燈時,機車騎士暴露之細懸浮微粒濃度可達到460µg/m3 。機車騎士暴露於細懸浮微粒濃度顯著高於其他族群,這對身體,尤其是肺部的健康是相當不利的。針對以上問題,機車騎士一般都會佩戴能過濾細懸浮微粒的口罩,比如N95口罩來防止肺部吸入過多有害物。然而,除了佩戴時的不舒適感外,許多有機煙塵也會混合細懸浮微粒黏在臉部其它位置,進一步刺激臉部肌膚。同時,重複使用口罩容易積累細菌,成為另一種污染源。According to a recent report by the Taiwan Environmental Protection Agency, the concentration of fine suspended particulates (PM2.5) emitted by locomotive exhaust may be as high as 730µg/m 3 depending on the vehicle brand and model; while the concentration of fine suspended particulates exposed by locomotive riders when waiting for traffic lights quickly It can reach 460µg/m 3 . The exposure of locomotive riders to fine suspended particulates is significantly higher than other ethnic groups, which is quite detrimental to the health of the body, especially the lungs. In response to the above problems, locomotive riders generally wear masks that can filter fine suspended particles, such as N95 masks to prevent the lungs from inhaling too many harmful substances. However, in addition to the uncomfortable feeling when wearing, many organic smoke and dust will also mix fine suspended particles and stick to other parts of the face, further stimulating the facial skin. At the same time, repeated use of masks can easily accumulate bacteria and become another source of pollution.

機車騎士所面臨的困擾不僅只有呼吸問題。法規強制規定騎乘機車需戴安全帽,這樣的騎乘配置增加了頭部重量(無可避免)、讓頭部的熱量累積不易消散,且吸附機車騎士的汗水,導致安全帽有揮之不去的臭氣味。眾所周知,安全帽的種類可分為全罩式、露臉式、半露臉式及半罩式。而不論使用哪一種安全帽,雖然於發生車禍時均能大幅降低頭部的傷害,但就種類上而言,佩戴半罩式安全帽仍發生頭部外傷的風險是全罩式安全帽的2.57倍(Yu et al. 2011)。由於台灣的氣候條件,尤其是在夏天,經常使得機車騎士犧牲部分的安全性,選擇露臉式、半露臉式及半罩式安全帽,以換取些許的清涼舒適。雖然許多廠商透過改善安全帽的結構以期能解決安全帽產生悶熱的問題,但本發明揭露一個更主動的方式,可以提升安全帽的舒適性、提供機車騎士對細懸浮微粒的呼吸防護、也讓全罩式安全帽的安全性不再因為不舒適而被交易,是一個多贏的創作。The trouble faced by locomotive riders is not just breathing. The regulations oblige riding helmets to wear a helmet. This riding configuration increases the weight of the head (inevitable), makes the heat accumulation of the head difficult to dissipate, and absorbs the sweat of the motorcycle rider, causing the helmet to linger. Smelly smell. As we all know, the types of helmets can be divided into full-face type, face-face type, half face-face type and half face type. Regardless of which helmet is used, although the head injury can be greatly reduced in the event of a car accident, in terms of type, the risk of head injury when wearing a half-hood helmet is 2.57 for a full-face helmet Times (Yu et al. 2011). Due to Taiwan’s climatic conditions, especially in summer, locomotive riders often sacrifice some of their safety and choose face-up, half-face and half-hood helmets in exchange for a little coolness and comfort. Although many manufacturers improve the structure of the helmet to solve the problem of sultry helmets, the present invention discloses a more active way to improve the comfort of the helmet, provide the rider with respiratory protection against fine suspended particles, and also allow The safety of full-face helmets is no longer traded because of discomfort, it is a win-win creation.

同時考慮細懸浮微粒的危害與習知安全帽的問題,有一些前案可供尋找適當的解決方案。中國實用新型第2052625U提出一種騎自行車或步行者使用的防塵防寒頭盔裝置。該裝置的特點是在頭盔下端連接上一塊密封軟布。當空氣汙染嚴重或天氣寒冷時把密封軟布上的拉鎖拉死,呼吸的空氣經過濾海綿淨化,可以有效地防塵防寒。本專利雖然利用了密封軟布與過濾海綿來達成空氣過濾,但效果有限。此外,頭盔內部的廢熱無法有效排除,對機車騎士所遇到的問題,解決不多。At the same time, considering the hazards of fine suspended particles and the problem of conventional safety helmets, there are some previous cases for finding appropriate solutions. Chinese Utility Model No. 2052625U proposes a dust-proof and cold-proof helmet device for cycling or walking. The feature of this device is that a soft, sealed cloth is attached to the lower end of the helmet. When the air pollution is serious or the weather is cold, the zipper on the soft sealing cloth is pulled to death, and the breathing air is purified by the filter sponge, which can effectively prevent dust and cold. Although the patent uses a sealing soft cloth and a filtering sponge to achieve air filtration, the effect is limited. In addition, the waste heat inside the helmet cannot be effectively eliminated, and the problems encountered by locomotive riders are not solved much.

另,美國專利申請案第2017/0136268號提出一種個人供電空氣呼吸器。該供電空氣呼吸器包含一個頭盔、一背包殼體、一組風扇、一套用於輸入空氣的過濾器以及將輸出空氣引導至頭盔的軟管。本案的優點是將過濾微塵的空氣利用風扇打入頭盔中,而該頭盔可藉以改變為合適的安全帽型態。然而,將依照本案製作的產品使用於車陣中,又難以阻擋來自機車騎士脖子下方的空氣對流,不免吸入髒空氣。In addition, US Patent Application No. 2017/0136268 proposes a personally powered air respirator. The powered air respirator includes a helmet, a backpack shell, a set of fans, a set of filters for input air, and a hose to guide the output air to the helmet. The advantage of this case is that the dust-filtered air is driven into the helmet by a fan, and the helmet can be changed to a suitable helmet type. However, it is difficult to block the convection of air from under the neck of the locomotive rider by using the product made in accordance with this case in a car array, and it is inevitable to suck in dirty air.

最後,中華民國新型專利第M518005提出一種防塵安全帽,其包括一帽體、一排風口及一吸風裝置。該帽體具有一容置部及一吸風口,該吸風口位於帽體的下緣且間隔設置複數個擋片。一窗口設於帽體的前方,連通一穿戴空間,排風口設於帽體窗口的邊緣處且連通該穿戴空間。吸風裝置容置於該容置部內且具有一風扇及一導風管,該風扇具有一排風側連通該排風口及一吸風側,導風管具有相反的兩端分別連通吸風側及吸風口。該新型的結構設計可阻擋空氣中的灰塵或懸浮微粒及水分進入該穿戴空間,並可維持帽體內部空氣清淨。但由於帽體內的空氣流通路線設計不佳,累積的廢熱難以排除。Finally, the new patent No. M518005 of the Republic of China proposes a dustproof safety helmet, which includes a hat body, an exhaust vent and an air suction device. The cap body has an accommodating portion and an air suction port. The air suction port is located at a lower edge of the cap body and a plurality of baffles are arranged at intervals. A window is provided in front of the cap body and communicates with a wearing space, and the air exhaust port is provided at the edge of the cap body window and communicates with the wearing space. The air suction device is accommodated in the accommodating part and has a fan and an air duct, the fan has an exhaust side to communicate with the air outlet and an air suction side, and the opposite ends of the air duct are connected to the air suction side, respectively And suction port. The new structure design can block the dust, suspended particles and moisture in the air from entering the wearing space, and can keep the air inside the cap body clean. However, due to the poor design of the air circulation path inside the cap, the accumulated waste heat is difficult to remove.

由於習知技術無法完全解決現有機車安全帽使用時所遇到的困擾,是故需要一種新型態可提供舒涼潔淨空氣的全罩式機車安全帽。這種安全帽可以解決機車騎士呼吸時的細懸浮微粒問題,同時能讓頭部累積的熱量有效消散,進一步減少機車騎士產生汗水,造成安全帽揮之不去的臭氣味。Since the conventional technology cannot completely solve the problems encountered in the use of existing locomotive helmets, a new type of full-cover locomotive helmet that can provide cool and clean air is needed. This kind of helmet can solve the problem of fine suspended particles when the motorcycle rider breathes, and can effectively dissipate the heat accumulated in the head, further reducing the sweat generated by the motorcycle rider, causing the odor that the helmet is lingering.

本段文字提取和編譯本發明的某些特點。其它特點將被揭露於後續段落中。其目的在涵蓋附加的申請專利範圍之精神和範圍中,各式的修改和類似的排列。This paragraph extracts and compiles certain features of the invention. Other features will be revealed in subsequent paragraphs. Its purpose is to cover the spirit and scope of the additional patent application scope, various modifications and similar arrangements.

為了解決上述問題,本發明提供一種可提供舒涼潔淨空氣的全罩式機車安全帽。該機車安全帽包含:一安全帽體,具有一視窗開口及一套設口,該視窗開口兩側邊樞接一防護鏡片,該防護鏡片可樞轉至該視窗開口上並將該視窗開口密封,該套設口環設一第一接連裝置,該安全帽體或該防護鏡片上的一開孔位置設置一通氣孔;一通氣管,該通氣管的一端連接至該通氣孔;一動力淨氣呼吸防護式(PAPR-typed)供氣機,與該通氣管的另一端連接,用以將外部空氣過濾細懸浮微粒後,經該通氣管傳送到該安全帽體內部;及一導流巾,為不透風材質所製成,其上端具有一第二接連裝置,該第二接連裝置可與該第一接連裝置可拆卸地連接。當該第一接連裝置與該第二接連裝置連接時,該導流巾圍繞戴該機車安全帽的使用者脖子一圈以上,並引導該安全帽體內部之空氣向其下端排出。In order to solve the above problems, the present invention provides a full-cover locomotive helmet that can provide cool and clean air. The locomotive safety helmet includes: a safety helmet body with a window opening and a set of openings, a protective lens is pivotally connected to both sides of the window opening, the protective lens can pivot to the window opening and seal the window opening , The sleeve ring is provided with a first connection device, a vent hole is provided at an opening position on the safety helmet body or the protective lens; a vent tube, one end of the vent tube is connected to the vent hole; a powered clean air breathing A protective (PAPR-typed) air supply machine is connected to the other end of the vent tube to filter fine suspended particles from outside air, and then passes it through the vent tube to the inside of the safety helmet body; and a deflector towel for It is made of airtight material and has a second connection device on its upper end, which can be detachably connected with the first connection device. When the first connection device and the second connection device are connected, the deflector towel surrounds the neck of the user wearing the locomotive helmet more than one turn, and guides the air inside the helmet body to be discharged to the lower end thereof.

依照本發明,通氣口開孔位置可在該安全帽體的頂部後方、該安全帽體接近使用者下巴處或該防護鏡片兩側之一。該動力淨氣呼吸防護式供氣機的供氣率可介於60公升/分鐘至100公升/分鐘間。該第二接連裝置可為具有鈎狀結構的魔鬼氈或是具有環狀結構的魔鬼氈。該第一接連裝置可為對應該第二接連裝置之具有環狀結構的魔鬼氈或是具有鈎狀結構的魔鬼氈。According to the present invention, the position of the vent opening may be behind the top of the helmet body, the helmet body close to the user's chin, or one of the two sides of the protective lens. The power supply rate of the power-purifying breath-protecting gas supply machine can be between 60 liters/minute and 100 liters/minute. The second connecting device may be a devil felt with a hook-shaped structure or a devil felt with a ring structure. The first connection device may be a devil felt with a ring structure or a devil felt with a hook structure corresponding to the second connection device.

最好,該導流巾材質可為聚丙烯(PP,Polypropylene)合成纖維、聚酯(Polyester)纖維,或熔噴型態聚丙烯。該導流巾材質亦可為針織布或由彈性布與平織布組合之機能性織物。進一步,該導流巾外部可塗覆一層防水膜,該防水膜可為聚乙烯(PE,polyethylene)膜。該導流巾上端至下端的長度不短於28公分。Preferably, the material of the diversion towel can be polypropylene (PP, Polypropylene) synthetic fiber, polyester (Polyester) fiber, or melt-blown polypropylene. The material of the diversion towel can also be knitted fabric or functional fabric composed of elastic fabric and plain woven fabric. Further, a layer of waterproof film may be coated on the outside of the diversion towel, and the waterproof film may be a polyethylene (PE, polyethylene) film. The length from the upper end to the lower end of the deflector towel is not shorter than 28 cm.

在一些實施例中,該動力淨氣呼吸防護式供氣機可外接一可攜式二次電池組或一機車電瓶,作為動力之來源。在使用者戴上該機車安全帽後,過濾後的空氣可流入安全帽體中經過使用者的頭部,將熱量經由該導流巾傳送到外部空氣中。該導流巾可進一步包含一固定裝置,用來固定該導流巾以圍繞戴該機車安全帽的使用者脖子一圈以上。而該固定裝置可為一組拉鍊、複數個按扣或一組魔鬼氈。In some embodiments, the power-purifying breath-protecting gas supply can be connected to a portable secondary battery pack or a locomotive battery as a source of power. After the user puts on the locomotive safety helmet, the filtered air can flow into the safety helmet body through the user's head, and transfer the heat to the outside air through the deflector towel. The deflector towel may further include a fixing device for fixing the deflector towel to surround the neck of the user wearing the motorcycle helmet more than one turn. The fixing device can be a set of zippers, a plurality of snaps or a set of devil felt.

藉由安全帽體、通氣管、動力淨氣呼吸防護式供氣機30及導流巾40的設計,過濾過的潔淨空氣可提供給使用者,並在流通過程中,將安全帽體內的熱帶出,以達成舒涼的目的。Through the design of the helmet body, snorkel, power scavenging breathing protective air supply 30 and diversion towel 40, filtered clean air can be provided to the user, and in the circulation process, the tropical To achieve the purpose of comfort.

本發明將藉由參照下列的實施方式而更具體地描述。The present invention will be described more specifically by referring to the following embodiments.

請見圖1與圖2,圖1為依照本發明之一實施例的一種提供舒涼潔淨空氣的機車安全帽的結構示意圖,圖2繪示一安全帽體10的下視態樣及一導流巾40張開之平面態樣。本發明所揭露的機車安全帽包含了前述的安全帽體10、一通氣管20、一動力淨氣呼吸防護式(PAPR-typed)供氣機30及前述的導流巾40。以下分別敘述該些元件的功能、態樣以及相互間的連動關係。Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic structural view of a locomotive helmet providing cool and clean air according to an embodiment of the present invention. FIG. 2 illustrates a bottom view of a helmet body 10 and a guide The flat appearance of the flow towel 40 opening. The locomotive safety helmet disclosed by the present invention includes the aforementioned safety helmet body 10, a ventilator 20, a powered air purifying breathing protection (PAPR-typed) air supply machine 30 and the aforementioned deflector towel 40. The functions, appearances and inter-relationships of these components are described below.

安全帽體10是機車安全帽用於保護使用者頭部安全的主體。由外觀型態分類來說,機車安全帽是屬於全罩式的。由於本發明的重點在於提供使用者潔淨的空氣並帶走安全帽體10內由機車騎士頭部發出的熱量,故安全帽體10的一部份細部構造可同任何習知技術,說明書中並不強調。因此,安全帽體10的範圍可包含,但不限於外層防摩擦保護材、吸收衝擊墊料、頤帶、頭側緩衝墊、護耳、防護鏡片、防護鏡片固定具、頭頂緩衝墊、護頸、護緣、耳緩衝墊等等。The helmet body 10 is a main body used for protecting the head safety of the locomotive helmet. According to the appearance type classification, the locomotive helmet is a full-cover type. Since the focus of the present invention is to provide clean air for the user and take away the heat emitted by the head of the locomotive rider in the helmet body 10, a part of the detailed structure of the helmet body 10 can be the same as any conventional technology. Not emphasized. Therefore, the scope of the hard hat body 10 may include, but is not limited to, outer anti-friction protection materials, shock-absorbing padding, belts, head cushions, ear protectors, protective lenses, protective lens fixtures, overhead cushions, neck guards, Guards, ear cushions, etc.

相較於現有安全帽的帽體結構,安全帽體10的特徵在於具有一視窗開口101、一套設口102,與選擇性的一通氣孔103,除此之外,沒有內部與外部的連通孔道。這樣的設計是用來有效隔絕安全帽體10內部與外部的空氣流通,進而防止機車騎士吸入未經去除細懸浮微粒的空氣。視窗開口101的兩側邊各有一個樞接裝置110(因視角關係,僅繪示視窗開口101一側邊的樞接裝置110),可樞接一防護鏡片11。該防護鏡片11可樞轉至視窗開口101上並將該視窗開口101密封(圖1所繪示的情形為防護鏡片11已樞轉至視窗開口101上並密閉視窗開口101,故兩者外觀上實際重合)。當轉動防護鏡片11遠離視窗開口101時,安全帽體10內外部的空氣便可對流。套設口102是供使用者頭部進入安全帽體10內的開口。實作上,套設口102部分空間可能被一緩衝墊104所佔據。套設口102環設一第一接連裝置105,該第一接連裝置105是來與導流巾40密接的工具,其態樣及詳細功能將於下方文字中說明。Compared with the existing helmet body structure, the helmet body 10 is characterized by having a window opening 101, a set of openings 102, and an optional vent 103, in addition, there is no internal and external communication channels . This design is used to effectively isolate the air circulation inside and outside of the helmet body 10, thereby preventing the rider from inhaling the air without removing fine suspended particles. Each of the window opening 101 has a pivoting device 110 on both sides (due to the angle of view, only the pivoting device 110 on one side of the window opening 101 is shown), which can pivotally connect a protective lens 11. The protective lens 11 can be pivoted to the window opening 101 and seal the window opening 101 (the situation shown in FIG. 1 is that the protective lens 11 has been pivoted to the window opening 101 and seals the window opening 101, so the appearance of the two Actual overlap). When the protective lens 11 is rotated away from the window opening 101, the air inside and outside the helmet body 10 can convect. The socket 102 is an opening for the user's head to enter the helmet body 10. In practice, a part of the space of the socket 102 may be occupied by a cushion 104. The socket 102 is surrounded by a first connecting device 105, which is a tool for tightly connecting with the deflector towel 40. Its appearance and detailed functions will be described in the text below.

前面提及,安全帽體10的通氣孔103是選擇性的開設。如果安全帽體10上沒有開設通氣孔103,它也可以開設在防護鏡片11。為了說明方便,在此稱通氣孔103的位置為開孔位置。在本實施例中,如圖1所示,開孔位置是在安全帽體10的頂部後方(相對使用者目視方向)。依照本發明,在另一的實施例中,開孔位置可以是在安全帽體10接近使用者下巴處(如圖5斜線橢圓形所示位置);在又一實施例中,開孔位置也可以是在防護鏡片11兩側之一(如圖6斜線橢圓形所示位置)。不同的開孔位置會產生不同的安全帽體10內部氣流循環效果,內部氣流循環的說明將在下文中揭露。As mentioned above, the vent 103 of the hard hat body 10 is selectively opened. If the vent hole 103 is not provided in the hard hat body 10, it can also be provided in the protective lens 11. For convenience of explanation, the position of the vent 103 is referred to as an opening position. In this embodiment, as shown in FIG. 1, the opening position is behind the top of the hard hat body 10 (relative to the user's visual direction). According to the present invention, in another embodiment, the opening position may be when the safety helmet body 10 is close to the user's chin (as shown by the oblique line in Figure 5); in yet another embodiment, the opening position is also It may be on one of the two sides of the protective lens 11 (as shown in the oblique ellipse in FIG. 6). Different opening positions will produce different internal air circulation effects of the safety helmet body 10, and the description of the internal air circulation will be disclosed below.

通氣管30的一端連接至通氣孔103,另一端連接動力淨氣呼吸防護式供氣機30。通氣管30的型態與材質不限,最好是軟管,比如PVC(PolyVinyl Chloride)軟管或EVA(Ethylene Vinyl Acetate)軟管,以便讓使用者能靈活轉動頭部,不受侷限。動力淨氣呼吸防護式供氣機30是用於動力過濾式呼吸防護具(Powered Air Purifying Respirator,PAPR)的供氣裝置。動力過濾式呼吸防護具是一種高效能微粒過濾呼吸防護具,以個人攜帶的送風機提供佩戴者呼吸所需的空氣,送風機及電池通常是佩掛於佩戴者之腰帶上或頭罩後端,送風機將含有污染物的空氣帶至高效能過濾濾材處過濾,以濾除細懸浮微粒。如果搭配吸附罐使用,也可同時去除部分氣狀污染物。一般來說,動力淨氣呼吸防護式供氣機30可能會包含主機、高效能濾網、腰帶及流量指示計等等,本發明並不限定其細部構造。但為了能夠有效提供電力,動力淨氣呼吸防護式供氣機30可外接一可攜式二次電池組或一機車電瓶(未繪示),以作為動力之來源。動力淨氣呼吸防護式供氣機30在本發明的機車安全帽中的功能是將外部空氣過濾細懸浮微粒後,經通氣管20傳送到安全帽體10內部。動力淨氣呼吸防護式供氣機30的供氣率,各廠牌規格不一。為了能有效達到提供舒涼潔淨空氣,卻又不造成安全帽體10內過多的二氧化碳(CO2 )累積,經實驗證實,動力淨氣呼吸防護式供氣機30的供氣率最好介於60公升/分鐘至100公升/分鐘之間。One end of the vent tube 30 is connected to the vent hole 103, and the other end is connected to the powered clean air breathing protection type air supply machine 30. The shape and material of the vent tube 30 are not limited, and it is preferably a hose, such as a PVC (PolyVinyl Chloride) hose or an EVA (Ethylene Vinyl Acetate) hose, so that the user can flexibly rotate the head without limitation. The power-purifying breathing-protecting air supply machine 30 is an air supply device for power-filtering breathing protective equipment (Powered Air Purifying Respirator, PAPR). Power filter breathing protector is a kind of high-efficiency particulate filter breathing protector. The blower carried by the individual provides the air needed by the wearer to breathe. The blower and battery are usually attached to the wearer's belt or the back of the hood. The blower Take the air containing pollutants to the high-efficiency filter media and filter to filter out fine suspended particles. If it is used with an adsorption tank, it can also remove some gaseous pollutants at the same time. Generally speaking, the power-purifying breathing-protecting air supply machine 30 may include a main body, a high-efficiency filter, a waist belt, a flow indicator, and the like, and the present invention does not limit its detailed structure. However, in order to be able to effectively provide power, the power-purifying breath-protecting gas supply machine 30 can be externally connected with a portable secondary battery pack or a locomotive battery (not shown) as a source of power. The function of the power clean air breathing protection type air supply machine 30 in the locomotive helmet of the present invention is to filter the outside air into fine suspended particles, and then transmit it to the inside of the helmet body 10 through the vent pipe 20. The air supply rate of the power-purifying breathing-protected air supply machine 30 varies from brand to brand. In order to effectively provide cool and clean air without causing excessive accumulation of carbon dioxide (CO 2 ) in the hard hat body 10, it has been experimentally confirmed that the air supply rate of the powered clean air breathing protective air supply machine 30 is preferably between Between 60 liters/minute and 100 liters/minute.

導流巾40(其平面展開如圖2下方所繪示)為不透風材質所製成,其上端具有一第二接連裝置401,該第二接連裝置401可與第一接連裝置105可拆卸地連接,其目的是當使用者戴上安全帽體10後可再裝上導流巾40,以免固定式的導流巾會被頭部捲入安全帽體10中。當第一接連裝置105與第二接連裝置401連接時,導流巾40可圍繞戴該機車安全帽的使用者脖子50一圈以上,如圖4上方之使用狀態剖面圖所示。由於從安全帽體10中不斷地會有乾淨空氣流形成穩定氣流,為了引導該氣流並防止安全帽體10外部髒空氣流入,導流巾40就是用來引導安全帽體10內部之空氣向其下端排出,同時隔絕外部空氣對流。The deflector towel 40 (whose plane is unfolded as shown in the lower part of FIG. 2) is made of a material that is impervious to wind, and has a second connection device 401 on its upper end, which can be detachably connected to the first connection device 105 The purpose of the connection is to install the diversion towel 40 after the user puts on the helmet body 10, so as to prevent the fixed diversion towel from being caught in the helmet body 10 by the head. When the first connection device 105 and the second connection device 401 are connected, the deflector towel 40 can wrap around the neck 50 of the user wearing the motorcycle helmet more than once, as shown in the cross-sectional view of the use state at the top of FIG. 4. Since there is a constant flow of clean air from the helmet body 10 to form a stable airflow, in order to guide the airflow and prevent the inflow of dirty air outside the helmet body 10, the deflector towel 40 is used to guide the air inside the helmet body 10 to it Discharged at the lower end, while blocking external air convection.

在本實施例中,導流巾40的平面為一長方形設計,其上端的第二接連裝置401為具有鈎狀結構的魔鬼氈或是具有環狀結構的魔鬼氈,故,第一接連裝置105就可以是對應第二接連裝置401之具有環狀結構的魔鬼氈或是具有鈎狀結構的魔鬼氈。也就是說,如果第二接連裝置401是具有環狀結構的魔鬼氈,第一接連裝置105就具有鈎狀結構的魔鬼氈;如果第二接連裝置401是具有鈎狀結構的魔鬼氈,第一接連裝置105就具有環狀結構的魔鬼氈。由於第一接連裝置105是在安全帽體10下緣處,利用魔鬼氈結構,導流巾40便能有效與安全帽體10連接,並阻止外部空氣流入安全帽體10內部。In this embodiment, the plane of the diversion towel 40 is a rectangular design, and the second connecting device 401 at the upper end thereof is a devil felt with a hook-like structure or a devil felt with a ring-shaped structure. Therefore, the first connecting device 105 It may be a devil felt with a ring structure corresponding to the second connecting device 401 or a devil felt with a hook structure. That is, if the second connection device 401 is a devil felt with a loop structure, the first connection device 105 has a hook-shaped devil felt; if the second connection device 401 is a devil felt with a hook structure, the first The connecting device 105 has a devil felt with a ring structure. Since the first connection device 105 is located at the lower edge of the helmet body 10, the deflector towel 40 can effectively connect with the helmet body 10 and prevent outside air from flowing into the helmet body 10 by using the devil felt structure.

在本實施例中,導流巾40的材質可以為聚丙烯(PP,Polypropylene)合成纖維,比如使用市售罩巾(Neckerchief)為之;導流巾40的材質也可以是聚酯(Polyester)纖維,比如使用市售領巾(Scarf)為之;導流巾40的材質更可以是熔噴型態聚丙烯,比如使用口罩結構中中間層過濾濾材(Filter)。除了石化製品,導流巾40也可以使用天然紡織品或混紡品。比如,導流巾40的材質可以為針織布或由彈性布與平織布組合之機能性織物(軟殼材料)。當然,如果怕氣密性不佳,導流巾40外部可塗覆一層防水膜,比如聚乙烯(PE,polyethylene)膜。要注意的是,導流巾40的長度,如圖2下方H所繪示,要有一定的長度,其原因為外界風速會將導流巾40吹起,使得導流巾40無法有效阻擋騎車時之氣流。由實驗數據觀察,導流巾40的長度設計至少需要28公分以上,才可有效阻擋騎車時之氣流。也就是上端至下端的長度H不短於28公分。In this embodiment, the material of the diversion towel 40 may be polypropylene (PP, Polypropylene) synthetic fiber, for example, a commercially available cover towel (Neckerchief) is used; the material of the diversion towel 40 may also be polyester (Polyester) For the fiber, for example, a commercially available scarf (Scarf) is used; the material of the diversion towel 40 may be a melt-blown polypropylene, for example, a middle layer filter in the mask structure (Filter). In addition to petrochemical products, the diversion towel 40 may also use natural textiles or blended products. For example, the material of the diversion towel 40 may be a knitted fabric or a functional fabric (soft shell material) composed of an elastic fabric and a plain woven fabric. Of course, if the airtightness is not good enough, the deflector towel 40 may be coated with a waterproof film, such as polyethylene (PE) film. It should be noted that the length of the diversion towel 40, as shown by H at the bottom of FIG. 2, must have a certain length, because the external wind speed will blow up the diversion towel 40, so that the diversion towel 40 cannot effectively block the ride Airflow while driving. Observed from the experimental data, the length design of the deflector towel 40 needs at least 28 cm or more to effectively block the airflow when riding. That is, the length H from the upper end to the lower end is not shorter than 28 cm.

再回到圖1。當使用者戴上安全帽體10、安裝好導流巾40並啟動動力淨氣呼吸防護式供氣機30後,外部空氣便經由動力淨氣呼吸防護式供氣機30的一進氣口301進入,被動力淨氣呼吸防護式供氣機30除去汙染物與細懸浮微粒,之後便沿著虛箭號方向,流過通氣管20進入安全帽體10上部。將使用者頭部的熱量帶走後,接著沿防護鏡片11與使用者臉部間的空間,向安全帽體10下方流動。接著,這股空氣流出安全帽體10,被導流巾40引導向下,直到排到導流巾40外部。也就是使用者戴上機車安全帽後,過濾後的空氣流入安全帽體10中經過使用者的頭部,將熱量經由導流巾40傳送到外部空氣中。達成了提供機車騎士舒涼潔淨空氣的目的。寒冷時,過濾後的空氣亦可透過導管引導令其先流過引擎高熱的表面以提高溫度。Then go back to Figure 1. When the user puts on the hard hat body 10, installs the diversion towel 40, and starts the power-purifying breathing protective air supply machine 30, the outside air passes through an air inlet 301 of the power-purifying breathing protective air supply machine 30 After entering, the powered air purifying breathing protective air supply machine 30 removes pollutants and fine suspended particles, and then flows along the virtual arrow direction through the vent tube 20 into the upper portion of the safety helmet body 10. After the heat of the user's head is taken away, it then flows down the safety helmet body 10 along the space between the protective lens 11 and the user's face. Then, this air flows out of the safety helmet body 10 and is guided downward by the deflector towel 40 until it is discharged outside the deflector towel 40. That is, after the user puts on the locomotive helmet, the filtered air flows into the helmet body 10 past the user's head, and transfers the heat to the outside air through the deflector towel 40. The purpose of providing cool and clean air for locomotive riders is achieved. When it is cold, the filtered air can also be guided through the duct so that it first flows over the hot surface of the engine to increase the temperature.

依照本發明的精神,開孔位置還有其它的選擇,以下針對不同的態樣進行說明。請見圖5,該圖繪示另一實施例中通氣孔103位置及氣流流動方向,其左方是安全帽體10的側視圖,其右方是安全帽體10的上視圖。由於開孔位置是在安全帽體10接近使用者下巴處,過濾後的乾淨清涼空氣會沿著通氣管20,由安全帽體10側面進入其中。待進入安全帽體10後,空氣會沿著人臉側面向安全帽體10上部(後腦位置),將使用者頭部的熱量帶走後。接著會和前一個實施例一般,空氣沿防護鏡片11與使用者臉部間的空間,向安全帽體10下方流動。最後,這股空氣流出安全帽體10,被導流巾40引導向下,直到排到導流巾40外部。相較前一實施例,這種設計需要破壞安全帽的本體結構,並不適用於現有帽體的改裝。。In accordance with the spirit of the present invention, there are other options for the location of the opening, which will be described below for different aspects. Please refer to FIG. 5, which illustrates the position of the vent 103 and the direction of airflow in another embodiment. The left side is the side view of the helmet body 10, and the right side is the top view of the helmet body 10. Since the position of the opening is when the safety helmet body 10 is close to the user's chin, the filtered and clean air will follow the vent tube 20 and enter into the safety helmet body 10 from the side. After entering the hard hat body 10, the air will move along the side of the face to the upper part of the hard hat body 10 (the position of the back of the head), taking away the heat of the user's head. Next, as in the previous embodiment, air flows along the space between the protective lens 11 and the user's face, and below the helmet 10. Finally, this air flows out of the safety helmet body 10 and is guided downward by the deflector towel 40 until it is discharged outside the deflector towel 40. Compared with the previous embodiment, this design needs to destroy the body structure of the helmet, and is not suitable for the modification of the existing helmet body. .

請復見圖6,該圖繪示又一實施例中通氣孔103位置及氣流流動方向,其左方是安全帽體10的側視圖,其右方是安全帽體10的上視圖。由於開孔位置是在防護鏡片11兩側之一,過濾後的乾淨清涼空氣會沿著通氣管20,由安全帽體10側面進入其中。待進入安全帽體10後,空氣不會到安全帽體10上部,將使用者頭部的熱量帶走。相反地,空氣會沿著眼睛與臉頰,流向防護鏡片11與使用者臉部間的空間,並轉方向向安全帽體10下方流動。最後,這股空氣流出安全帽體10,被導流巾40引導向下,直到排到導流巾40外部。相較前一實施例,這種設計的氣流流經範圍較窄,頭部熱量較易聚積,適合冬天騎乘機車時使用。Please refer to FIG. 6 again, which shows the position of the vent hole 103 and the direction of airflow in yet another embodiment. The left side is the side view of the hard hat body 10, and the right side is the top view of the hard hat body 10. Since the opening is located on one of the two sides of the protective lens 11, the clean and cool air after filtering will enter the side of the safety helmet body 10 along the vent tube 20. After entering the hard hat body 10, air will not reach the upper part of the hard hat body 10 and take away the heat of the user's head. Conversely, air will flow along the eyes and cheeks to the space between the protective lens 11 and the user's face, and will turn to flow below the helmet body 10. Finally, this air flows out of the safety helmet body 10 and is guided downward by the deflector towel 40 until it is discharged outside the deflector towel 40. Compared with the previous embodiment, the airflow of this design has a narrower flow range and the heat of the head is more likely to accumulate, which is suitable for use when riding a motorcycle in winter.

由於人體的周長,自脖子以下是漸增的,如果導流巾40的長度H設計較長,定寬度的導流巾40可能無法有效達到” 圍繞戴該機車安全帽的使用者脖子一圈以上”的目的。是故,在另一實施例中,導流巾40的設計寬度可以是由其上端到下端漸增,如圖3所示。為了保證導流巾40兩側能有效閉合,導流巾40兩側可以加設固定裝置402,用來固定該導流巾401,以確保能”圍繞戴機車安全帽的使用者脖子一圈”(如圖4下方所示)。實作上,固定裝置402可以是一組拉鍊、複數個按扣或一組魔鬼氈。Due to the circumference of the human body, it gradually increases from below the neck. If the length H of the diversion towel 40 is designed to be longer, the diversion towel 40 with a fixed width may not be able to effectively reach" around the neck of the user wearing the motorcycle helmet The purpose of "above". Therefore, in another embodiment, the design width of the deflector towel 40 may gradually increase from the upper end to the lower end, as shown in FIG. 3. In order to ensure that both sides of the diversion towel 40 can be effectively closed, a fixing device 402 can be added on both sides of the diversion towel 40 to fix the diversion towel 401, so as to ensure that it can "around the neck of the user wearing a motorcycle helmet" (As shown in the bottom of Figure 4). In practice, the fixing device 402 may be a set of zippers, a plurality of snaps, or a set of devil felt.

雖然本發明已以實施方式揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed as above in the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the attached patent application.

10‧‧‧安全帽體11‧‧‧防護鏡片20‧‧‧通氣管30‧‧‧動力淨氣呼吸防護式供氣機40‧‧‧導流巾101‧‧‧視窗開口102‧‧‧套設口103‧‧‧通氣孔104‧‧‧緩衝墊105‧‧‧第一接連裝置110‧‧‧樞接裝置301‧‧‧進氣口401‧‧‧第二接連裝置402‧‧‧固定裝置50‧‧‧脖子H‧‧‧長度10 ‧ ‧ ‧ helmet helmet 11 ‧ ‧ ‧ protective lens 20 ‧ ‧ snorkel 30 ‧ ‧ ‧ power clean air breathing protective air supply machine 40 ‧ ‧ ‧ diversion towel 101 ‧ ‧ ‧ window opening 102 ‧ ‧ ‧ sets Set port 103‧‧‧Ventilation hole 104‧‧‧Cushion pad 105‧‧‧ First connecting device 110‧‧‧Pivot connecting device 301‧‧‧ Inlet port 401‧‧‧ Second connecting device 402‧‧‧ Fixing device 50‧‧‧Neck H‧‧‧Length

圖1為依照本發明之一實施例的一種機車安全帽的結構示意圖,圖2繪示一安全帽體的下視態樣及一導流巾張開之平面態樣,圖3繪示另一導流巾張開之平面態樣,圖4繪示導流巾環繞機車騎士脖子的不同態樣,圖5繪示一通氣孔位置及氣流流動方向,圖6繪示另一通氣孔位置及氣流流動方向。FIG. 1 is a schematic structural view of a locomotive safety helmet according to an embodiment of the present invention, FIG. 2 shows a downward-looking state of a safety helmet body and a plane state of a diversion towel, and FIG. 3 shows another diversion Fig. 4 shows the different appearances of the diversion towel around the neck of the motorcycle rider, Fig. 5 shows the position of one vent and the direction of airflow, and Fig. 6 shows the position of another vent and the direction of airflow.

10‧‧‧安全帽體 10‧‧‧ Hard hat body

11‧‧‧防護鏡片 11‧‧‧Protective lenses

20‧‧‧通氣管 20‧‧‧Snorkel

30‧‧‧動力淨氣呼吸防護式供氣機 30‧‧‧Powered gas-purifying breathing protective gas supply machine

40‧‧‧導流巾 40‧‧‧Diversion towel

101‧‧‧視窗開口 101‧‧‧Window opening

103‧‧‧通氣孔 103‧‧‧ vent

110‧‧‧樞接裝置 110‧‧‧Pivot device

301‧‧‧進氣口 301‧‧‧Air inlet

Claims (14)

一種提供舒涼潔淨空氣的機車安全帽,包含: 一安全帽體,具有一視窗開口及一套設口,該視窗開口兩側邊樞接一防護鏡片,該防護鏡片可樞轉至該視窗開口上並將該視窗開口密封,該套設口環設一第一接連裝置,該安全帽體或該防護鏡片上的一開孔位置設置一通氣孔; 一通氣管,該通氣管的一端連接至該通氣孔; 一動力淨氣呼吸防護式(PAPR-typed)供氣機,與該通氣管的另一端連接,用以將外部空氣過濾細懸浮微粒後,經該通氣管傳送到該安全帽體內部;及 一導流巾,為不透風材質所製成,其上端具有一第二接連裝置,該第二接連裝置可與該第一接連裝置可拆卸地連接; 其中當該第一接連裝置與該第二接連裝置連接時,該導流巾圍繞戴該機車安全帽的使用者脖子一圈以上,並引導該安全帽體內部之空氣向其下端排出。A locomotive helmet that provides cool and clean air includes: a helmet body with a window opening and a set of openings, a protective lens is pivotally connected to both sides of the window opening, and the protective lens can be pivoted to the window opening Seal the opening of the window, a first connection device is provided on the sleeve ring, a vent hole is provided at an opening position on the safety helmet body or the protective lens; a vent tube, one end of the vent tube is connected to the vent Stomata; a power clean air breathing protection (PAPR-typed) air supply, connected to the other end of the vent tube, used to filter fine suspended particles from outside air, and then transmitted to the inside of the helmet body through the vent tube; And a deflector towel, made of a material that is impervious to wind, and has a second connection device at its upper end, the second connection device can be detachably connected to the first connection device; wherein when the first connection device is connected to the first When the two consecutive devices are connected, the deflector towel surrounds the neck of the user wearing the locomotive helmet more than one turn, and guides the air inside the helmet body to be discharged to the lower end thereof. 如申請專利範圍第1項所述之機車安全帽,其中該開孔位置在該安全帽體的頂部後方、該安全帽體接近使用者下巴處或該防護鏡片兩側之一。The locomotive helmet as described in item 1 of the patent application scope, wherein the opening is located behind the top of the helmet body, the helmet body is close to the user's chin, or one of the sides of the protective lens. 如申請專利範圍第1項所述之機車安全帽,其中該動力淨氣呼吸防護式供氣機的供氣率介於60公升/分鐘至100公升/分鐘間。The locomotive helmet as described in item 1 of the scope of the patent application, wherein the air supply rate of the power-purified breathing-protected air supply machine is between 60 liters/minute and 100 liters/minute. 如申請專利範圍第1項所述之機車安全帽,其中該第二接連裝置為具有鈎狀結構的魔鬼氈或是具有環狀結構的魔鬼氈。The locomotive helmet as described in item 1 of the patent application scope, wherein the second connection device is a devil felt with a hook-like structure or a devil felt with a ring-shaped structure. 如申請專利範圍第1項所述之機車安全帽,其中該第一接連裝置為對應該第二接連裝置之具有環狀結構的魔鬼氈或是具有鈎狀結構的魔鬼氈。The locomotive helmet as described in item 1 of the patent scope, wherein the first connection device is a devil felt with a ring structure or a devil felt with a hook structure corresponding to the second connection device. 如申請專利範圍第1項所述之機車安全帽,其中該導流巾材質為聚丙烯(PP,Polypropylene)合成纖維、聚酯(Polyester)纖維,或熔噴型態聚丙烯。The locomotive helmet as described in item 1 of the patent scope, wherein the material of the diversion towel is polypropylene (PP, Polypropylene) synthetic fiber, polyester (Polyester) fiber, or melt-blown polypropylene. 如申請專利範圍第1項所述之機車安全帽,其中該導流巾材質為針織布或由彈性布與平織布組合之機能性織物。The locomotive helmet as described in item 1 of the patent scope, wherein the material of the diversion towel is knitted fabric or a functional fabric composed of a combination of elastic fabric and plain woven fabric. 如申請專利範圍第1項所述之機車安全帽,其中該導流巾外部塗覆一層防水膜。The locomotive safety helmet as described in item 1 of the patent application scope, wherein the deflector towel is coated with a waterproof film on the outside. 如申請專利範圍第8項所述之機車安全帽,其中該防水膜為聚乙烯(PE,polyethylene)膜。The motorcycle helmet as described in item 8 of the patent application scope, wherein the waterproof membrane is polyethylene (PE, polyethylene) membrane. 如申請專利範圍第1項所述之機車安全帽,其中該導流巾上端至下端的長度不短於28公分。The locomotive helmet as described in item 1 of the patent application scope, wherein the length from the upper end to the lower end of the deflector towel is not less than 28 cm. 如申請專利範圍第1項所述之機車安全帽,其中該動力淨氣呼吸防護式供氣機外接一可攜式二次電池組或一機車電瓶,作為動力之來源。The locomotive helmet as described in item 1 of the scope of the patent application, wherein the power purifying breathing protective gas supply machine is connected with a portable secondary battery pack or a locomotive battery as a source of power. 如申請專利範圍第1項所述之機車安全帽,其中在使用者戴上該機車安全帽後,過濾後的空氣流入安全帽體中經過使用者的頭部,將熱量經由該導流巾傳送到外部空氣中。The locomotive helmet as described in item 1 of the patent scope, wherein after the user puts on the locomotive helmet, the filtered air flows into the helmet body through the user's head, and transfers heat through the deflector towel Into the outside air. 如申請專利範圍第1項所述之機車安全帽,其中該導流巾進一步包含一固定裝置,用來固定該導流巾以圍繞戴該機車安全帽的使用者脖子一圈以上。The locomotive helmet as described in item 1 of the patent scope, wherein the deflector towel further includes a fixing device for fixing the deflector towel to surround the neck of the user wearing the locomotive helmet more than one turn. 如申請專利範圍第13項所述之機車安全帽,其中該固定裝置為一組拉鍊、複數個按扣或一組魔鬼氈。The locomotive helmet as described in item 13 of the patent application scope, wherein the fixing device is a set of zippers, a plurality of snaps or a set of devil felt.
TW107118404A 2018-05-30 2018-05-30 Motorcycle helmet providing cool and cleaning air TWI661787B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW107118404A TWI661787B (en) 2018-05-30 2018-05-30 Motorcycle helmet providing cool and cleaning air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW107118404A TWI661787B (en) 2018-05-30 2018-05-30 Motorcycle helmet providing cool and cleaning air

Publications (2)

Publication Number Publication Date
TWI661787B TWI661787B (en) 2019-06-11
TW202002830A true TW202002830A (en) 2020-01-16

Family

ID=67764370

Family Applications (1)

Application Number Title Priority Date Filing Date
TW107118404A TWI661787B (en) 2018-05-30 2018-05-30 Motorcycle helmet providing cool and cleaning air

Country Status (1)

Country Link
TW (1) TWI661787B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI750545B (en) * 2019-11-27 2021-12-21 陳起恭 Head cover and its wearing and dropping method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI730807B (en) * 2020-06-10 2021-06-11 裕親有限公司 Portable air filter device used in engine room

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2455085Y (en) * 2000-10-19 2001-10-24 吴利添 Self ventilating helmet
TWM424027U (en) * 2011-10-12 2012-03-11 Hang-Lin Chen Engineering protective mask
CN203435771U (en) * 2013-05-16 2014-02-19 周光宇 Protective helmet
TWM518005U (en) * 2015-11-05 2016-03-01 Jarvish Inc Dustproof helmet
CN206651409U (en) * 2017-03-14 2017-11-21 汪世伟 A kind of closed guard system
CN207412537U (en) * 2017-03-29 2018-05-29 深圳市沃尔核材股份有限公司 A kind of hat type air cleaning unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI750545B (en) * 2019-11-27 2021-12-21 陳起恭 Head cover and its wearing and dropping method

Also Published As

Publication number Publication date
TWI661787B (en) 2019-06-11

Similar Documents

Publication Publication Date Title
JP5320457B2 (en) Respirator system including convertible head covering member
US3822698A (en) Powered air-purifying respirator helmet
US4764990A (en) Ventilated face shield
US5113853A (en) Helmet with filtered air supply
CN2933465Y (en) Positive pressure type breath dustproof and protective device
US20210289876A1 (en) Personal Air Filtration Device with Reduced Noise from Air Mover
CN211935225U (en) Protective head cover
US7543585B2 (en) Unobtrusive personal air filtration device
CN110338500A (en) A kind of power air-supply Dust proof helmet
CN210248568U (en) Medical lens antifogging active ventilation and filtration multifunctional protective helmet
TWI661787B (en) Motorcycle helmet providing cool and cleaning air
CN106422104A (en) Wearable breathing device
CN205337711U (en) Dustproof silica gel gauze mask of cooling
CN212141186U (en) Protective head cover
US20230115249A1 (en) Locally directed filtered air environment apparatus
US20190357625A1 (en) Motorcycle helmet providing cool and cleaning air
JP7273424B2 (en) portable air purifier
CN213848887U (en) Protective mask
CN111317929A (en) Protective head cover
JP3227751U (en) Protective mask device
WO2020168837A2 (en) Hood-type air filtration respirator
CN213941902U (en) Positive pressure epidemic prevention hood
US20230404189A1 (en) Filtering assembly with an air filtering function
CN212260630U (en) Dustproof cooling safety helmet
CN219781706U (en) Riding safety helmet with fresh air function