Air purifier convenient to use in dining process

Abstract

An air purifier convenient to use in the dining process is characterized in that an air cavity is formed in the top of a hard shell cap, an air inlet hole and an air outlet hole are formed in the air cavity, a turbofan is bonded to the air outlet hole, an outlet of the turbofan is connected with a T-shaped hose and connected with a bearded air conveying pipe through an air outlet hole connector, and air is supplied to a nostril area through an air outlet of the air conveying pipe; the hard-shell cap is sleeved with the cap-shaped cover, the brim of the cap-shaped cover is tightly pressed on the brim of the hard-shell cap through the elastic annular belt, a closed space is formed between the cap-shaped cover and a shell of the hard-shell cap, negative pressure is generated in the air cavity when the turbofan works, negative pressure is also generated in the cap-shaped cover, and under the barometric pressure difference, the hard-shell cap is sealed. External air is filtered by the cap-shaped cover, enters the air cavity, enters the turbofan through the air outlet, is connected with the T-shaped hose, the air outlet connector and the barbed air delivery pipe from an outlet of the turbofan, and is supplied to people.

Description

technical field [0001] The invention belongs to the field of air purification, in particular to a portable air purifier, and relates to an air purifier that is convenient to use during eating. Background technique [0002] At the moment when the epidemic is popular all over the world, it is very important to wear a mask or a portable air purifier. However, most of the purifiers and masks need to take off the mask or mask when people drink and eat, and the mask or mask when drinking and eating. It is impossible to protect people's health normally, and practice has proved that the time and place of the epidemic cannot be determined, and it is unknown when and who has it. Therefore, protection is very important. However, people need to eat regardless of whether there is an epidemic, and many cases occur. The infection is caused by eating together, so protection during eating and drinking is also very important. At present, there are the following types of portable air purifiers...

AI Technical Summary

Problems solved by technology

[0002] At the moment when the epidemic is spreading all over the world, it is very important to wear a mask or a portable air purifier. However, most purifiers and masks need to be removed when people are drinking or eating. It is impossible to protect people’s health normally, but practice has proved that when an epidemic occurs, it is impossible to determine the time and place, and it is unknown when and who has it. Therefore, protection is very important, but people need to eat regardless of whether there is an epidemic or not. The infection is caused by eating together. Therefore, protection during eating and drinking is also very important. At present, there are the following types of portable air purifiers. The first type is portable air purifiers. The main unit is tied to the arm or the waist of the human body. The purified air is sent to the mask through the air tube. The disadvantage of this method is that the mask must be removed when eating and drinking, which cannot continue to provide convenient and effective protection. Secondly, when the air tube is too thin, the air volume is not enough. , when not inhaling, it is a positive pressure air supply. When the human body inhales, due to the small air volume of the fan, it cannot meet the inhalation volume of the human body, and it will inhale some unpurified air from the peripheral gap of the mask, which cannot achieve the purpose of positive pressure air supply. In addition, when the air delivery pipe is too thick, the air delivery pipe has a large weight and high hardness, which will affect the activities of the human body, easily cause the mask to leak air, and also affect the use effect and appearance, and the cost of the special filter element is high; People are uncomfortable. The second category is to install the intake and exhaust fans on the mask similar to the mask. Due to the limitation of the weight of the battery and the size of the mask, the fan is small and the suction is very small. There should be no excessive suction on the filter material. Resistance, so the filtering effect of the air is reduced. In addition, if the motor and battery increase and the weight increases, it will also cause the problem of poor sealing and increase the noise. The cost of using a special filter element is also high. The same is also needed when eating Take off the mask, can not continue to effectively provide clean air, the same air filter covering the face when used in high temperature makes people uncomfortable, the third type is head-mounted, with fans, filters, batteries, etc. installed on the top of the head , the filtered air is sent into the mask. There are also problems in this category: firstly, the air filter material is special and expensive, and secondly, the small area of ​​the filter element will result in less air intake, which cannot meet the inhaled air volume, and is not enough. The problem is that increasing the power of the fan will also increase the weight and noise problems, and the air leakage between the mask and the cheeks will cause the problem of positive pressure air supply. This method also has the problem that it cannot effectively provide protection during the eating process. The mask also affects Eating, the fourth category is a purifier that can filter, humidify, and lower the air temperature. Its disadvantage is that a saddle-shaped groove needs to be set on the outer shell of the hard shell cap. The manufacturing process is complicated and the saddle-shaped filter groove is also limited. The area of ​​the filter material does not completely cover the shell of the hard shell cap with the filter material. Although the bottom edge of the mask is opened at a certain angle, you can drink water and eat while continuing to provide clean air. However, after all, the mask blocks the line of sight. The feeling of being isolated from each other, and how much the mask affects the actions of eating and drinking

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