CN206995630U - A kind of adaptive anti-dust respirator of respiratory rate - Google Patents

Abstract

The utility model discloses a dustproof respirator with self-adaptive breathing frequency, which comprises a face mask, a respirator is arranged on the face mask corresponding to the mouth and nose, a filter is arranged in the respirator, a small air pump is arranged on the inner side of the respirator toward the mouth and nose, and the small air pump The air exhaust direction is from the outside of the breathing mask to the inside of the breathing mask. The small air pump is electrically connected to the control circuit board. Both the small air pump and the control circuit board are powered by batteries. The control circuit board is integrated with a pressure sensor. and control the start or stop of the small air pump according to the detected pressure value. Compared with the prior art, the utility model has the beneficial effects of disclosing a comfortable air-supply dust mask with good dust filtering effect, which can automatically adapt and actively supply air according to the breathing frequency and air volume of the user, It solves the problems of poor dustproof effect and high breathing resistance of the existing dustproof masks, allows workers to wear them consciously, and promotes the prevention and control of coal mine pneumoconiosis.

Description

A dustproof mask with self-adaptive breathing rate

technical field

The utility model belongs to the technical field of industrial hygiene personal protection, is suitable for personal protection in an environment with high dust concentration, and is especially suitable for the underground working environment of coal mines, and relates to a dustproof mask with self-adaptive breathing frequency.

Background technique

Pneumoconiosis is one of the most serious occupational diseases that endanger the health of workers in our country. The coal industry is particularly serious. During the coal mining process, a large amount of dust will be generated, which seriously endangers the physical and mental health of coal miners. At present, there are more than 400,000 patients with pneumoconiosis in my country's coal mining industry, and the number is increasing at a rate of more than 10,000 per year. About 6,000 people die of pneumoconiosis every year, which has brought great pain to patients and their families. Therefore, it is very important to prevent and control dust hazards and pneumoconiosis. Personal protection is the last line of defense in occupational health protection and an important means to effectively prevent pneumoconiosis.

With the improvement of the mechanization level of coal mines, while increasing the coal output, the dust production and the dust concentration of the mine operation site are also greatly increased. It is difficult to reduce the concentration of respirable dust to below the standard by means of dust removal and dust reduction equipment alone, especially for some special operations. , such as drilling, spraying, etc., the dust concentration seriously exceeds the standard, and underground workers must wear dust masks. At present, self-priming dust masks are mostly used in China, which are characterized by simple structure, low cost, and poor mask tightness. If the mask is not in tight contact with the face, it will leak and reduce the dustproof effect. At the same time, this kind of mask will increase the inhalation resistance with the increase of the amount of dust filtered, especially the labor intensity of underground workers in coal mines. Wearing such masks will have difficulty breathing and a feeling of suffocation, so workers are unwilling to wear dustproof Masks, thus increasing the probability of workers suffering from pneumoconiosis.

In order to solve the problem of breathing resistance, some people have invented air-supply masks, but the air supply volume cannot match the user's breathing volume, which often results in poor comfort for the wearer.

Utility model content

The utility model discloses a dust-proof mask with self-adaptive breathing frequency. It solves the problem of breathing discomfort of the dust-proof breathing mask, and achieves the rhythm that is most in line with human breathing. The dust-proof effect is excellent, which improves the safety and reliability of the use of the breathing mask.

The technical scheme that the utility model realizes above-mentioned purpose and takes is:

A dust-proof respirator with self-adaptive breathing frequency, comprising a mask, the mask is provided with a headband for fixing it on the user's head, a breathing mask is arranged at the corresponding mouth and nose of the mask, a filter is arranged in the breathing mask, and the breathing mask faces A small air pump is arranged on the inside of the mouth and nose, and the exhaust direction of the small air pump is from the outside of the respirator to the inside of the respirator. The small air pump is electrically connected to the control circuit board. Both the small air pump and the control circuit board are powered by batteries. A pressure sensor is integrated on the board. The pressure sensor detects the pressure in the mask, and controls the start or stop of the small air pump according to the detected pressure value. When the pressure value is less than the preset value of the control circuit board, the control circuit board starts the small air pump. pump, when the pressure value is greater than the preset value of the control circuit board, the control circuit board turns off the small air pump.

The cross-section of the respirator is circular.

The battery is a rechargeable accumulator.

The covering cavity formed by the mask is tapered, and the tapered cavity covers the nose and mouth.

There is a plastic buckle on the headband to adjust the length.

Compared with the prior art, the utility model has the beneficial effects of:

(1) Since the utility model is equipped with a control circuit board in the mask, the pressure sensor can be used to control the start or stop of the small air pump, and the small air pump can automatically control the rotation of the small air pump to supply air when inhaling, reducing the resistance of the wearer when inhaling. When exhaling, the air pump is controlled to stop the air supply, so that the gas exhaled by the wearer can be successfully discharged from the mask through the valve without any resistance, which overcomes the phenomenon that the user cannot breathe freely when wearing a breathing mask, and improves the use of the wearer. comfort.

(2) By adding an automatic air supply system, the utility model keeps the inside of the mask in a positive pressure state no matter when inhaling or exhaling, which isolates the entry of dust gas outside the breathing mask and solves the problem of low protection rate. Problems, improve the safety of wearing.

(3) The pressure sensor detects the pressure in the mask, and the pressure in the mask changes periodically according to the wearer's breathing rate and inhalation and exhalation volume, so the control circuit board can control the small air pump according to the user's breathing rate and air volume. The volume automatically supplies air to the inside of the mask, thereby changing the air supply volume of the mask, realizing natural and comfortable breathing, and improving the work efficiency of workers.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Among them, 1-filter, 2-respirator, 3-mask, 4-control circuit board, 5-small air pump, 6-headband.

detailed description

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figure 1, a dustproof respirator with self-adaptive breathing frequency includes a mask, a headband for fixing it to the user's head is arranged on the mask, a respirator is arranged at the corresponding mouth and nose of the mask, and a filter is arranged in the respirator A small air pump is set on the inside of the breathing mask towards the mouth and nose. The exhaust direction of the small air pump is from the outside of the breathing mask to the inside of the breathing mask. The small air pump is electrically connected to the control circuit board. Both the small air pump and the control circuit board Power supply, the control circuit board is integrated with a pressure sensor, the pressure sensor detects the pressure in the mask, and controls the start or close of the small air pump according to the detected pressure value, when the pressure value is less than the preset value of the control circuit board, the control circuit The board starts the small air pump, and when the pressure value is greater than the preset value of the control circuit board, the control circuit board turns off the small air pump.

The cross-section of the respirator is circular.

The battery is a rechargeable accumulator.

The covering cavity formed by the mask is tapered, and the tapered cavity covers the nose and mouth.

There is a plastic buckle on the headband to adjust the length.

The pressure sensor detects the pressure in the mask, and the pressure in the mask changes periodically according to the wearer's breathing frequency and inhalation and exhalation volume, so the control circuit board can control the small air pump to automatically adjust the air pressure according to the user's breathing frequency and air volume. Air supply or stop air supply inside the mask; when the wearer inhales, the pressure inside the mask drops, when the pressure value is less than the preset value of the control circuit board, the control circuit board starts a small air pump, and the small air pump supplies air to the inside of the mask, When the wearer exhales, the pressure inside the mask increases. When the pressure value is greater than the preset value of the control circuit board, the control circuit board turns off the small air pump, and the small air pump stops supplying air. The resistance is small, which improves the comfort of wearing; in addition, the inside of the mask maintains a positive pressure state whether it is inhaling or exhaling, which isolates the entry of dust gas outside the respirator and improves the safety of wearing.

Claims (5)

1. A dust-proof respirator with self-adaptive breathing frequency, comprising a face shield, the face shield is provided with a headband for fixing it to the user's head, the corresponding mouth and nose of the face shield is provided with a respirator, and a filter is set in the respirator, its It is characterized in that: a small air pump is arranged on the inside of the breathing mask towards the mouth and nose, the exhaust direction of the small air pump is from the outside of the breathing mask to the inside of the breathing mask, the small air pump is electrically connected with the control circuit board, and the small air pump and the control circuit board are both Powered by batteries, a pressure sensor is integrated on the control circuit board. The pressure sensor detects the pressure in the mask and controls the start or stop of the small air pump according to the detected pressure value. When the pressure value is less than the preset value of the control circuit board, The control circuit board starts the small air pump, and when the pressure value is greater than the preset value of the control circuit board, the control circuit board closes the small air pump. 2. The dustproof respirator with self-adaptive breathing frequency according to claim 1, characterized in that: the cross section of the respirator is circular. 3. The dustproof respirator with self-adaptive breathing frequency according to claim 1, characterized in that: the battery is a rechargeable accumulator. 4. The dust-proof mask with adaptive breathing frequency according to claim 1, characterized in that: the covering cavity formed by the mask is conical, and the conical cavity covers the mouth and nose. 5. The dust-proof mask with self-adaptive breathing frequency according to claim 1, characterized in that: the headband is provided with a plastic buckle for adjusting the length.