Respirator capable of isolating waste gas for pressurization

Abstract

The utility model discloses a respirator capable of isolating waste gas and pressurizing, and relates to the technical field of respirators, the respirator comprises a mask main body and a filter box, the mask main body comprises an air inlet and an air outlet, the air inlet is provided with an air isolation bin, the air isolation bin comprises a bin body shell and an inner ring block, the inner ring block is fixed in the bin body shell through a plurality of supporting rods, a plurality of air compression channels are formed between the inner ring block and the bin body shell, a sleeve rod is arranged in the middle of the supporting rods, the sleeve rod is sleeved with a valve plate, the valve plate covers the inner ring block, and a valve plate limiting block is arranged at the end of the sleeve rod; when fresh air enters the respirator to drive the valve plate to be opened, the fresh air is compressed by the air compression channel, the pressure in the air isolation bin is increased at the moment, airflow is accelerated, the fresh air can be conveyed into the human body more quickly, mixing of the fresh air and waste gas can be reduced, it is guaranteed that the oxygen content of inhaled air is higher, and the service life of the respirator is prolonged. The temperature is lower, and the moisture is smaller.

Description

Technical Field

[0001] This utility model relates to the field of respirator technology, specifically a respirator that can isolate and pressurize exhaust gas. Background Technology

[0002] A respirator typically consists of components such as a mask and a filter. The mask is used to cover the user's mouth and nose, ensuring that the air inside the respirator is filtered and purified before entering the user's respiratory system. The mask is usually made of silicone or PVC to provide comfort and a tight seal.

[0003] The filter is one of the core components of a respirator, used to filter harmful substances in the air, such as dust, smoke, and harmful gases. Different types of respirators may be equipped with different types of filters, such as activated carbon filters and HEPA filters.

[0004] In traditional respirators, when air enters, it opens a valve, causing the air to diffuse outwards. There is no fixed airflow path, and fresh air mixes with the exhaust gases inside. This mixture has lower oxygen content, higher temperature, and increased humidity. Furthermore, the irregular airflow direction prolongs the time it takes for fresh oxygen to reach the body. After prolonged use, residual moisture molecules make the inside of the respirator very hot and humid. Summary of the Invention

[0005] The purpose of this invention is to provide a respirator that can isolate and pressurize exhaust gas, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a respirator capable of isolating and pressurizing exhaust gas, comprising a mask body and a filter box. The mask body includes an air inlet and an air outlet. An air isolation chamber is provided at the air inlet. The air isolation chamber includes a chamber shell and an inner ring block. The inner ring block is fixed inside the chamber shell by multiple support rods. Multiple air compression channels are formed between the inner ring block and the chamber shell.

[0007] A sleeve is provided in the middle of the plurality of support rods, a valve plate is sleeved on the sleeve, the valve plate covers the inner ring block, and a valve plate limiting block is provided at the end of the sleeve.

[0008] Preferably, the channel structure of the outer shell of the silo is designed to be wide at the inlet and narrow at the outlet.

[0009] Preferably, the air outlet is provided with an exhaust valve plate and a protective cover.

[0010] Preferably, the filter box is provided with a filter layer structure, which includes an activated carbon layer, a non-woven fabric layer, a meltblown fabric layer, a felt-like activated carbon layer, a magnetic sheet layer, a glass fiber layer, and a filter cotton layer.

[0011] Preferably, the end face of the mask body has a raised design, with the air inlet located above the raised area and the air outlet located below the raised area.

[0012] Preferably, the mask body includes a full-face mask and a half-face mask.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a simple structure and novel design. The specially designed air isolation chamber forms a fixed airflow channel. When fresh air enters the respirator and drives the valve to open, the fresh air will be compressed through the air compression channel. At this time, the pressure inside the air isolation chamber increases, which accelerates the airflow. This allows the fresh air to be delivered to the user's mouth and nose more quickly, and reduces the mixing of fresh air and exhaust gas, ensuring that the inhaled air has a higher oxygen content, lower temperature, and less moisture. Due to the increased flow rate, the airflow will be ejected from the outlet in a jet state. The airflow can carry away the water vapor molecules adhering to the skin, keeping the user's skin drier and making it more comfortable to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the air isolation chamber of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the outer shell of the container of this utility model;

[0018] In the diagram: mask body-1, air inlet-11, air outlet-12, exhaust valve-121, protective cover-122, filter box-2, air isolation chamber-3, chamber shell-31, inner ring block-32, support rod-33, sleeve rod-331, air compression channel-34, valve plate-35, valve plate limit block-36. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4The present invention provides a technical solution: a respirator that can isolate and pressurize exhaust gas, including a mask body 1 and a filter box 2 connected to the mask body 1, wherein the filter box 2 is provided with a filter layer structure for filtering impurities in the air;

[0021] In order to fit the shape of a person's nose, the end face of the mask body 1 is designed to be convex. An air inlet 11 is set above the convexity, and an air outlet 12 is set below the convexity, ensuring that the air outlet extends to the front of the nostrils.

[0022] An air isolation chamber 3 is set at the air inlet 11 to form a fixed air flow channel. In this way, the fresh air that has just been inhaled will enter along the fixed flow channel of the air isolation chamber 3 and be pressurized, so that the fresh air can be delivered to the user's mouth and nose more quickly, and can also prevent the fresh air from mixing with the exhaust gas generated inside the respirator.

[0023] The air outlet 12 is provided with an exhaust valve plate 121. When exhaling, the exhaust gas is discharged from the exhaust valve. In addition, a protective cover 122 can be added to the air outlet 12 to protect the exhaust valve and prevent impurities from splashing during operation.

[0024] In this embodiment, the air isolation chamber 3 includes a chamber shell 31, and the channel structure of the chamber shell 31 is designed to be wide at the inlet and narrow at the outlet;

[0025] The inner ring block 32 is fixed inside the outer shell 31 of the chamber by multiple support rods 33, so that multiple air compression channels 34 are generated between the inner ring block 32 and the outer shell 31 of the chamber to allow fresh air to enter.

[0026] Then, a sleeve rod 331 is set in the middle of multiple support rods 33, and a valve plate 35 is sleeved onto the sleeve rod 331. A valve plate limiting block 36 is set at the end of the sleeve rod 331. At this time, the valve plate 35 covers the inner ring block 32. When air is drawn in, the airflow drives the valve plate to move and open on the sleeve rod.

[0027] In this embodiment, the filter layer structure specifically includes: an activated carbon layer that can adsorb a large number of gas molecules and tiny particles, effectively removing harmful gases, odors and some organic pollutants from the air;

[0028] Non-woven fabric layer: Numerous tiny pores are formed between its fibers, which can block and filter larger particulate matter such as dust and droplets in the air;

[0029] Meltblown fabric layer: Meltblown fabric is made by stretching polymer melt with high-speed hot air flow to form extremely fine fibers and condense them into a web. Its fiber diameter can reach the micron or even submicron level, which can effectively filter tiny particles in the air and also has a certain blocking effect on bacteria, viruses and the like.

[0030] Felt-like activated carbon layer: Felt-like activated carbon is made by making activated carbon fibers into a felt shape, which retains the adsorption performance of activated carbon while increasing the flexibility and strength of the material, so that it can better adapt to the shape of the filter box and the usage requirements, and improve the filtration effect.

[0031] Magnetic sheet: Utilizes the magnetism of a magnet to attract ferromagnetic dust from the air, thereby achieving the purpose of filtering iron dust;

[0032] Fiberglass layer and filter cotton layer: both are used to filter particulate matter and dust.

[0033] In this embodiment, the mask body 1 includes a full-face mask and a half-face mask. Therefore, the air isolation chamber 3 used can be applied to full-face masks, half-face masks, etc.

[0034] In summary, when the user wears the device, the air passing through the isolation chamber not only effectively prevents the air from mixing with the exhaust gas inside the respirator, but also increases the airflow velocity, allowing fresh air to quickly flow through the air isolation chamber to the front of the nostrils, and finally be exhaled from the exhaust valve at the outlet.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A respirator capable of isolating and pressurizing exhaust gas, comprising a mask body (1) and a filter cartridge (2), wherein the mask body (1) includes an air inlet (11) and an air outlet (12), characterized in that: An air isolation chamber (3) is provided at the air inlet (11). The air isolation chamber (3) includes a chamber shell (31) and an inner ring block (32). The inner ring block (32) is fixed inside the chamber shell (31) by multiple support rods (33). Multiple air compression channels (34) are generated between the inner ring block (32) and the chamber shell (31). A sleeve rod (331) is provided in the middle of the multiple support rods (33), a valve plate (35) is sleeved on the sleeve rod (331), the valve plate (35) covers the inner ring block (32), and a valve plate limiting block (36) is provided at the end of the sleeve rod (331).

2. The respirator capable of isolating and pressurizing exhaust gas according to claim 1, characterized in that: The channel structure of the outer shell (31) of the hopper is designed to be wide at the inlet and narrow at the outlet.

3. The respirator capable of isolating and pressurizing exhaust gas according to claim 1, characterized in that: The air outlet (12) is provided with an exhaust valve plate (121) and a protective cover (122) is also provided at the air outlet (12).

4. The respirator capable of isolating and pressurizing exhaust gas according to claim 1, characterized in that: The filter box (2) is provided with a filter layer structure, which includes an activated carbon layer, a non-woven fabric layer, a meltblown fabric layer, a felt-like activated carbon layer, a magnetic sheet layer, a glass fiber layer, and a filter cotton layer.

5. The respirator capable of isolating and pressurizing exhaust gas according to claim 1, characterized in that: The face mask body (1) has a raised end face design, the air inlet (11) is located above the raised end face, and the air outlet (12) is located below the raised end face.

6. The respirator capable of isolating and pressurizing exhaust gas according to claim 1 or 5, characterized in that: The main body of the mask (1) includes a full-face mask and a half-face mask.

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