人用鼻塞 技术领域 Human nasal congestion
本发明涉及一种人用卫生日用品, 尤其是涉及一种人用鼻塞。 The present invention relates to a sanitary napkin for human use, and more particularly to a nasal plug for human use.
背景技术 Background technique
目前, 人保护呼吸道呼吸空气的方式大多是取用口罩形式, 把人的 口部及鼻部一起盖住及口罩带紧结于人的颈头后部作紧固口罩位置, 作 预防供应呼吸空气的过滤。 这种模式操作会产生如下不好的效果及不方 便之处: At present, the way to protect the respiratory tract from breathing air is mostly in the form of a mask, which covers the mouth and nose of the person together and the mask band is fastened to the back of the neck of the person as a fastening mask to prevent the supply of breathing air. Filtering. This mode of operation can produce the following undesirable effects and inconveniences:
1、 在口罩盖着人的面部有可能未能完全密封, 因此, 部份呼吸空气 会未经口罩过滤而混合部份经口罩过滤空气进入人的呼吸管道及系统器 官, 在呼吸空气供应未能有更安全保障; 1. The mask may not be completely sealed on the person's face. Therefore, some of the breathing air will not be filtered by the mask and mixed with the mask to filter the air into the human respiratory and system organs. More secure;
1、 在口罩同样盖着人鼻 及口部, 如未有分离开, 呼出的废气及吸 入的过滤空气会再混合而循环重进入类呼吸管道及器官, 增加不卫生的 呼吸空气; 1. The mask also covers the nose and mouth. If it is not separated, the exhaled exhaust gas and the inhaled filtered air will be mixed and recycled into the respiratory tube and organs to increase unhygienic breathing air.
3、 在被口罩盖着的面部表面部份将产生面部的皮肤温度不同; 3. The skin temperature of the face will be different on the surface of the face covered by the mask;
4、 在口罩盖着面部表面部份, 将产生面部的皮层和口罩磨擦以及部 份温度的相差, 而使部份人 d 对该部份皮层产生过敏引发皮肤病; 4. When the mask covers the surface of the face, the skin layer of the face and the mask are rubbed and the temperature difference between the parts is caused, so that some people have an allergic reaction to the part of the skin layer;
5、在口罩盖着面部及口部,将限制人使用口部运作,在言语,饮食, 物品进出口部等不便; 5. Covering the face and mouth with a mask will restrict people from using the mouth, and it is inconvenient in words, diet, import and export of goods;
6、 在口罩带紧扣头颈后, 会压使人在头部血管, 而使血液运行不正 常; 6. After the mask is fastened to the head and neck, it will press on the blood vessels of the head and make the blood run abnormally;
7、 在带口罩会产生, 人视觉及认别不方便, 且不美观; 7, in the mask will be produced, people's vision and recognition is not convenient, and not beautiful;
8、 口罩无法收存有化学物及流体, 而这种化学物或流体能挥发 ^气 混合, 产生嗅觉作混合过滤的呼吸空气, 提供人的呼吸嗅觉环保及享受;
9、 口罩无法收存药物挥发药性气体, 而这种药物挥发药性气体能混 合过滤的呼吸空气, 提供人的呼吸道疾病治理及预防; 8. The mask cannot contain chemicals and fluids, and the chemical or fluid can be volatilized and mixed to produce a breathing air that is mixed and filtered to provide human breathing and environmental protection and enjoyment; 9, the mask can not contain the drug volatile gas, and the drug volatile gas can mix the filtered breathing air to provide treatment and prevention of human respiratory diseases;
10、 口罩未有恰当的空 Γ司以收集由人鼻孔排出的废物或废流液体; 10. The mask does not have an appropriate space to collect waste or waste liquid discharged from the nostrils of the person;
11、 口罩未有恰当的位置及空间可连接其它仪器的供应管道;11. The mask does not have the proper position and space to connect the supply pipeline of other instruments;
12、 对于治疗呼吸管道的药品大多釆用点在鼻孔外皮肤上, 这会造 成对皮肤和化学物品敏感及或引起皮肤病等不利之处。: 12. Most of the medicines used to treat the respiratory tract are placed on the skin outside the nostrils. This can cause skin and chemical sensitivities and skin diseases. :
因此, 目前人们使用现有模式的口罩作呼吸空气过滤, 在卫生方面 存有多种风险及使用上不便之处和缺点, 且未能提供更多对呼吸道环保 嗅觉享受, 及对呼吸道疾病的治理及预防功用等。 发明内容 : Therefore, people currently use the existing mode of mask for respiratory air filtration, which has various risks and inconveniences in terms of hygiene, and fails to provide more environmentally friendly olfactory enjoyment of the respiratory tract and treatment of respiratory diseases. And preventive functions. Summary of the invention:
本发明所要解决的技术问题在于提供一种人用鼻塞, 其堵塞在人鼻 呼吸鼻孔中, 所有吸入人体口乎吸管道的空气均经过该人用鼻塞进行分离 过滤, 确保进入空气管道及人呼吸管道的空气更加卫生及更多保障。 The technical problem to be solved by the present invention is to provide a nasal plug for human being, which is blocked in the nostrils of the human nose, and all the air inhaled into the human body through the suction pipe is separated and filtered by the person using a nasal plug to ensure entry into the air duct and human breathing. The air in the pipeline is more sanitary and more secure.
为解决上述技术问题, 本发明所采用的技术方案是: 提供一种人用 鼻塞, 包括外盒、 下盖、 空气过滤片、 中空的空气通道硬管、 化学物品 固体、 化学物品流质或液体, 该外盒装置在人的鼻孔内, 外盒上部外围 设有用来堵塞及密封人鼻孔使鼻内及鼻外空气及气体物品不能流通的碟 形叶片, 碟形叶片可稳定鼻塞在鼻孔位置及设有存留鼻排废物空间, 外 盒的上下均设有与空气通道硬管连接以供鼻孔内外的空气或气体流通的 空气进出孔口; 空气通道硬管下部为一喇叭口, 外盒的下缘与下盖的上 缘设有互扣封口, 相互扣合形成盒内空间; 在空气通道硬管的喇叭孔口 面装贴有空气过滤片, 下盖底面有供外间空气及或气体通过的进气孔, 所有鼻外间空气及或气体经过该空气过滤片进入, 外盒内在空气过滤片 下存放有挥发性的化学物品固体、 流质及或液体。
上述技术方案的进一步改进是: 下盖采用坚硬材料制成, 且下盖的 进气孔外边围设有凹空位, 而在鼻塞下盖凹空位口边沿设有用来连接其 它仪器或空气供应管的 ί口位。 In order to solve the above technical problems, the technical solution adopted by the present invention is: providing a nasal plug for a person, including an outer box, a lower cover, an air filter, a hollow air passage tube, a chemical solid, a chemical liquid or a liquid, The outer box device is arranged in the nostrils of the person, and the outer periphery of the outer box is provided with a dish-shaped blade for blocking and sealing the nostrils of the person so that the air and gas contents in the nose and the nose are not circulated, and the dish-shaped blade can stabilize the nasal plug in the nostril position and the setting. There is a space for retaining the nasal discharge, and the upper and lower sides of the outer box are provided with an air inlet and outlet port connected with the air passage tube for air or gas flowing inside and outside the nostril; the lower part of the air passage hard tube is a bell mouth, and the lower edge of the outer box The upper edge of the lower cover is provided with an interlocking seal, and is fastened to each other to form a space inside the box; an air filter piece is attached to the horn hole surface of the air passage hard tube, and the bottom surface of the lower cover has a space for the passage of external air or gas. Stomata, all the air and/or gas outside the nose enter through the air filter, and the volatile chemical solids and fluids are stored in the outer box under the air filter. Liquid. A further improvement of the above technical solution is as follows: the lower cover is made of a hard material, and the outer side of the air inlet of the lower cover is provided with a concave vacancy, and the edge of the concave vacant opening of the lower cover is provided for connecting other instruments or air supply pipes. ί mouth.
本发明的有益效果是: 本发明的人用鼻塞内装有空气过滤片, 所有 吸入人体呼吸管道的空气均经过该空气过滤片进行分离过滤, 确保进入 空气管道及人呼吸管道的空气更加卫生及更多保障; The invention has the beneficial effects that: the nasal plug of the invention is provided with an air filter, and all the air sucked into the breathing tube of the human body is separated and filtered through the air filter to ensure that the air entering the air duct and the human breathing duct is more sanitary and more More protection;
且在人用鼻塞内存放化学物品及或液体流物, 在空气中挥发气味流 通时, 发出嗅味混合于过滤的呼吸空气经管道迸入人体的呼吸管道及器 官增加人嗅觉享受及更环保; In the case of storing nasals and liquids in human nasal plugs, when the volatile smell in the air circulates, the breathing air mixed with the filtered breathing air is piped into the human body's breathing ducts and organs to increase the sense of smell and environmental protection;
还可在人用鼻塞内存放恰当的药物及或液体药物, 在空气中挥发流 通时, 发出药物气体及药性气体并混合于过滤的呼吸空气, 经管道同进 入人体的呼吸管道及器官, 对有关疾病得恰当治理及预防。 It is also possible to store appropriate drugs and or liquid medicines in a human nasal plug. When volatilized in the air, a drug gas and a medicinal gas are emitted and mixed with the filtered breathing air, and the respiratory channels and organs that enter the human body through the pipeline are related. The disease is properly treated and prevented.
外盒用软滑弹性材料制成, 其上部碟形叶片容易放进人鼻孔洞内空 间, 且软滑弹性碟式圆叶贴服鼻孔洞内壁及鼻孔边及外沿, 配合人各自 不同鼻孔, 在外缘达至堵塞密封更好效果。 而且当碟形叶片弯起藏于鼻 孔时上部碟形叶片形成杯状, 可作收集人鼻孔排出的废物及或流体或液 体。 The outer box is made of soft and elastic material, and the upper disc-shaped blade is easy to fit into the inner space of the human nostril, and the soft and elastic disc-shaped round leaf is applied to the inner wall of the nostril and the side and outer edge of the nostril, and the different nostrils of the person are matched. A better result is achieved by blocking the seal on the outer edge. Moreover, when the disc-shaped blade is bent and hidden in the nostril, the upper disc-shaped vane is formed into a cup shape, and can be used as a waste and/or a fluid or a liquid discharged from the nostrils of the human body.
在碟形叶片中有凸出的管通, 而在管通中配有空气通道硬管, 确保 空气通顺流通, 不会因鼻塞的软材料产生空气管道变形及堵塞呼吸空气 的流通。 There is a convex tube passage in the dish-shaped blade, and an air passage tube in the tube passage to ensure that the air is circulated smoothly, and the air tube is not deformed by the soft material of the nasal plug and the circulation of the breathing air is blocked.
外盒的底部有互扣封口鼻塞下盖顶部紧贴密封空气及或流体不能流 通, 但可移除, 其内形成空间。 还可在下盖外的凹空位边沿设有扣位以 连接其它仪器管道或连接空气供应管, 以便吸取另一端管口外的 气。 The bottom of the outer box has an interlocking seal. The bottom of the lower cover is placed against the seal air and the fluid cannot flow, but can be removed to form a space therein. A buckle can also be provided on the vacant edge of the lower cover to connect other instrument piping or to connect the air supply tube to draw air from the other end.
附图说明 DRAWINGS
图 1是本发明人用鼻塞的侧面图。
图 2是本发明人用鼻塞的剖面图。 Fig. 1 is a side view of a nasal plug for use by the present inventors. Figure 2 is a cross-sectional view of a nasal plug used by the inventors.
图 3是本发明人用鼻塞的顶平面图。 Figure 3 is a top plan view of a nasal plug for use by the inventors.
图 4是本发明人用鼻塞的底平面图。 Figure 4 is a bottom plan view of a nasal plug for use by the present inventors.
图 5是本发明人用鼻塞放置于人鼻孔洞的剖面图。 具体实施方式 Figure 5 is a cross-sectional view of the inventors placing a nasal plug in a human nostril. detailed description
请参阅图 1至图 5, 本发明提供一种人用鼻塞, 其包括外盒 1、 下盖 2、 空气过滤片 3、 中空空气通道硬管 4、化学物品固体 5、化学物品流质 及、 或液体 6。 Referring to FIG. 1 to FIG. 5, the present invention provides a nasal plug for a person, which comprises an outer box 1, a lower cover 2, an air filter 3, a hollow air passage tube 4, a chemical solid 5, a chemical liquid, and/or Liquid 6.
外盒 1 由软滑有弹性且防水的材料制成, 而且在紧贴人鼻孔洞内表 皮层无不良、 过敏等反应, 和所使用的大部化学物品、 药物等一样都为 中性反应及无副作用。 外盒 1 的上部为碟形叶片, 分别为碟形叶片底部 11、碟形叶片面部 12及碟形叶片边围 13 ,在碟形叶片中央有凸起的鼻塞 管道 18,在内通道鼻塞管道内围表面 19,装配有中空的空气通 硬管 4, 而确保中空内通的空气通道 8, 给空气自由流通穿过鼻塞外盒 L , 由底部 及鼻塞叶部流至凸起的鼻塞管 18顶部。空气通道 8将流通鼻塞夕卜空气 31 经空气过滤片 3流通入鼻孔洞内空间 27以及人的呼吸管道 28 连接呼吸 系统器官。 The outer box 1 is made of a soft, elastic, and waterproof material, and has no adverse reaction or allergic reaction in the epidermis of the human nostril, and is neutral in response to most of the chemicals and drugs used. No side effects. The upper part of the outer box 1 is a dish-shaped blade, which is a dish-shaped blade bottom portion 11, a dish-shaped blade surface portion 12 and a dish-shaped blade edge 13 respectively, and a raised nasal plug pipe 18 in the center of the dish-shaped blade, in the inner channel nasal plug pipe The peripheral surface 19 is fitted with a hollow air passage tube 4 to ensure a hollow air passage 8 for free passage of air through the nasal plug outer box L, from the bottom and the nasal plug portion to the top of the raised nasal plug tube 18 . The air passage 8 will circulate the nasal air 31 through the air filter 3 into the inner space of the nostril 27 and the breathing tube of the person 28 to connect the respiratory organs.
空气通道硬管 4 的底部是喇叭口 30, 较大端查防止空气通道硬管 4 不会向上走脱。 在人用鼻塞外盒 1的底部边围及鼻塞下盖 2上边围有互 扣封口 14, 可密封及紧扣使空气及流质及液体不能流通, 形成鼻塞内盒 空间 9, 而互扣封口 14可重打开及重互扣, 以方便更换存置在内的空气 过滤片 3、 化学物品固体 5以及化学物品流质或液体 6。 The bottom of the air passage tube 4 is the bell mouth 30, and the larger end check prevents the air passage tube 4 from going up and down. The bottom edge of the human nasal cavity outer box 1 and the upper side of the nasal plug lower cover 2 are surrounded by interlocking seals 14, which can be sealed and fastened so that air and fluid and liquid cannot flow, forming a nasal plug inner box space 9, and the interlocking sealing mouth 14 It can be re-opened and interlocked to facilitate the replacement of the air filter 3, chemical solids 5 and chemical liquid or liquid 6 stored therein.
空气过滤片 3 是材料经化学处理来过滤及分离掉空气中^尘粒, 污 染浮粒物以及细菌, 所有鼻塞外空气 31将经过该空气过滤片 3, 以确保
呼吸的空气得到过滤再经过空气通道 8进入人的呼吸管道 28等人的呼吸 系统及器官。 化学物品固体 5及化学物品流质或液体 6可以是例如香料 化学物品, 其在空气中挥发香味, 经空气过滤片 3, 连同过滤呼吸空气经 过空气通道 8进入鼻孔洞空间 27, 接触人嗅觉器官而得嗅觉享受及环保 清新感觉。 同样, 化学物品固体 5及化学物品流质或液体 6可以是药物 及使用†合当药物, 在空气中挥发药性气体, 通过空气过滤片 3连同过滤 的呼吸空气经过空气通道 8进入鼻孔洞空间 27,经过人的呼吸管道 28进 入人体勺呼吸系统及器官起到医治有关疾病或预防作用。 在鼻塞下盖 2 的中央位置的凹空位是鼻塞下盖外空位 16, 对上是下盖空气通道孔 7, 作为对鼻塞外空气 31的流通口,对下边缘是鼻塞下盖外空位扣口 15,作 为扣连其它仪器供应管道及或连接空气供应管, 用作吸取另一端管口外 的空气。 The air filter 3 is chemically treated to filter and separate airborne dust particles, contaminated particles and bacteria, and all the nasal air 31 will pass through the air filter 3 to ensure The breathed air is filtered and passed through the air passage 8 into the respiratory system and organs of the human breathing tube 28 and the like. The chemical solid 5 and the chemical liquid or liquid 6 may be, for example, a fragrance chemical that volatilizes the fragrance in the air, passes through the air filter 3, along with the filtered breathing air through the air passage 8 into the nostril space 27, and contacts the human olfactory organ. Have a sense of smell and a fresh and environmentally friendly feeling. Similarly, the chemical solid 5 and the chemical liquid or liquid 6 may be a drug and a medicinal compound, which volatilizes the medicinal gas in the air, and enters the nostril space 27 through the air passage 8 through the air filter 3 together with the filtered breathing air. After the human breathing tube 28 enters the body scoop respiratory system and organs to treat related diseases or preventive effects. The concave position in the central position of the nasal plug lower cover 2 is the outer vacancy position 16 of the nasal plug lower cover, the upper cover is the lower cover air passage hole 7, as the flow opening to the nasal plug outer air 31, and the lower edge is the nasal plug lower cover outer vacancy buckle 15, as a deduction of other instrument supply pipes and or connected to the air supply pipe, used to draw air outside the other end of the pipe.
组装本发明的人用鼻塞时, 先将中空的空气通道硬管 4的顶部插入 鼻塞管道内围表面 19, 由下孔进入直到中空的空气通道硬管 4的底部喇 叭口 30, 贴服于鼻塞管道内围表面 19的下孔口, 将化学物品固体 5、 化 学物品流质或液体 6放在鼻塞下盖 2内的鼻塞内金空间 9,并将空气过滤 片 3盖上, 然后将鼻塞下盖 2的顶部压向人鼻塞外盒 1的底部, 形成互 扣封口 14, 密封使空气及或流质不能流通。 使尼组装好的本发明人用鼻 塞时,首先用手指在碟形叶片底部 11, 向上推而使碟形叶片边围 13缩小 及升高, 然后推进入人鼻孔洞内空间 27, 直到鼻塞颈位 10, 平位于鼻孔 边围 21, 因整个鼻塞外盒及碟形叶片是软滑及弹性材料制成, 因此碟形 叶片底咅 ll, 碟形叶片边围 13, 在材料的软弹 f生作用下而重新伸开, 使 碟形叶片底部 11, 贴服于鼻孔洞内表面 22及鼻 边围 21, 因人体鼻孔 周围的鼻肌肉 20也是软弹性因鼻塞叶底部 11, 和鼻孔洞内表面 22贴触 产生互适应贴服的封闭, 使空气及或流质液体不能流通而达成鼻孔密封
以及将人用鼻塞稳定装置于人鼻孔润空间 27, 所有流通过滤呼吸空气 26 在鼻孔洞空间 27以及人的呼吸管道 28,以及通往人呼吸系统只能流经空 气通道 8, 并流经空气过滤片 3进行过滤。 在碟形叶片底部 11, 弯起碟 形叶片边围 13并升高而形成碟形叶片内空间 23,可作暂存人鼻排废液体 24, 及人鼻排废物 25。 有可能鼻孔^ ]内毛发 29, 会给鼻塞叶底部 11压 着, 但对密封空气流通以及使用者的感觉影响不大。 当使用者戴上本发 明人用鼻塞时, 肺部运动吸入空气 H寸, 因内外气压差而将鼻塞外空气 31 吸进, 经下盖空气通道孔 7以及经过空气过滤片 3时, 将尘粒、 污染浮 粒、 细菌 32等分离过滤掉, 所有经过滤的呼吸空气 26流经空气通道 8, 同时带动存于鼻塞内盒空间 9内的化学物品固体 5或化学物品流质或液 体 6, 化学物品和空气中挥发出的气味, 或药性气体 33经过空气过滤片 3 , 混合经过滤的呼吸空气 26, 一同流经空气通道 8、 鼻孔洞内空间 27 而进入人呼吸管道 28通往人的呼吸系统器官, 以及嗅觉器官, 因此人体 呼吸过滤空气 26对健康更有保障, 另外再加上恰当化学品挥发的气味及 或药性气 33, 得到额外的嗅觉享受及清新环保感觉, 还可加上恰当的药 性气体作医治及预防相关的疾病。 使用恰当的化学物品固体 5或化学物 品流质及或液体 6要视个别使用者的喜爱及或疾病的医治及预防要求作 选择。 人用鼻塞呼吸空气习惯同用鼻孔, 当使用该人用鼻塞也可在同样 目前人的呼吸习惯下使用, 但如要得到最佳的效果, 是吸入空气时使用 鼻孔经人用鼻塞, 而呼出废气时则经人的口部, 这对增加人肺部及其它 关连器官的运动, 以及空气流量使对徤康更有直接益处。 鼻塞下盖外的 空位扣位 15用作扣连其它仪器供应管道或连接空气供应管, 用作吸取另 端距离管口外的空气。
When assembling the nasal plug of the present invention, the top of the hollow air passage tube 4 is first inserted into the inner surface 19 of the nasal plug tube, and the bottom hole enters the bottom bell mouth 30 of the hollow air passage tube 4, and is attached to the nasal stopper. The lower opening of the inner surface 19 of the pipe, the chemical solid 5, the chemical liquid or liquid 6 is placed in the inner space of the nasal plug 9 in the nasal cap 2, and the air filter 3 is covered, and then the nasal plug is placed under the cover. The top of the 2 is pressed against the bottom of the human nasal plug outer case 1 to form a snap seal 14 which is sealed so that air and/or fluid cannot flow. When the inventor of the present invention uses a nasal plug, first pushes the finger on the bottom 11 of the disc-shaped blade, pushes up the disc-shaped blade edge 13 to be reduced and raised, and then pushes into the inner space of the human nostril hole 27 until the nasal plug neck Bit 10, located in the side of the nostril 21, because the entire nasal plug and the disc-shaped blade are made of soft and elastic material, so the disc-shaped blade bottom 咅 ll, the disc-shaped blade edge 13 , in the soft elastic material of the material Under the action, it is re-stretched, so that the bottom portion 11 of the disc-shaped blade is attached to the inner surface 22 of the nostril and the nasal margin 21, because the nasal muscles 20 around the nostrils of the human body are also soft and elastic due to the bottom surface 11 of the nasal plug, and the inner surface of the nasal cavity. 22 contact to create a mutual adaptation of the closure, so that air and or liquid fluid can not flow to achieve a nostril seal And a nasal stuffing device is placed in the nostril space 27 of the person, all circulating filtered breathing air 26 in the nostril space 27 and the human breathing tube 28, and the passage to the human respiratory system can only flow through the air passage 8 and through the air The filter 3 was filtered. At the bottom portion 11 of the dish-shaped blade, the dish-shaped blade edge 13 is bent and raised to form a dish-shaped blade inner space 23, which can be used as a temporary human waste liquid discharge liquid 24, and a human nasal discharge waste 25. It is possible that the inner pores 29 of the nostrils will press against the bottom 11 of the nasal plug, but have little effect on the flow of the sealed air and the feeling of the user. When the user wears the nasal plug of the present inventor, the lungs move in the air H inch, sucking the outside air 31 of the nasal plug due to the difference in air pressure between the inside and the outside, passing through the air passage hole 7 of the lower cover and passing through the air filter 3 The particles, contaminated aerosols, bacteria 32, etc. are separated and filtered, and all filtered breathing air 26 flows through the air passages 8, while driving the chemical solids 5 or chemical liquids or liquids 6 in the inner space 9 of the nasal cavity, chemistry The odor emitted by the article and the air, or the medicinal gas 33 passes through the air filter 3, mixes the filtered breathing air 26, and flows through the air passage 8, the inner space of the nostril 27, and enters the breathing channel of the human body to the human breath. System organs, as well as olfactory organs, so the human body's breathing and filtering air 26 is more secure for health, plus the odor of the appropriate chemicals and the medicinal gas 33, to get extra sense of smell and fresh environmental protection, plus appropriate The medicinal gas is used to treat and prevent related diseases. The use of appropriate chemical solids 5 or chemical fluids and/or liquids 6 depends on the preferences of individual users and the treatment and prevention requirements of the disease. People use the nasal congestion to breathe the air and use the nostrils. When using the person with a stuffy nose, they can also be used under the same current breathing habits. However, if you want to get the best effect, use the nostrils to inhale the air and use the nasal congestion. Exhaust gas passes through the mouth of the person, which increases the movement of the human lungs and other related organs, as well as the air flow, which has a direct benefit to the health. The vacant buckle 15 outside the lower cover of the nasal plug is used to fasten other instrument supply pipes or connect the air supply pipe, and is used to suck the air from the other end away from the nozzle.