Mask capable of avoiding excessive ventilation

Abstract

The utility model relates to the technical field of medical instruments, in particular to a mask capable of avoiding excessive ventilation, which comprises a mask body, a circular groove arranged on the front side of the mask body, a rotating wheel arranged in the middle of the circular groove, a cavity arranged in the middle of the rotating wheel, a through hole arranged on the cavity wall of one side of the cavity close to the mask body, and a rotating shaft slidably arranged in the through hole. The two ends of the rotating shaft extend out of the through holes, one end of the rotating shaft is fixedly connected with the center of the groove wall of the circular groove, the end, located in the cavity, of the rotating shaft is provided with an abutting mechanism, a plurality of sector plates are evenly and fixedly arranged on the side, close to the mask body, of the side wall of the rotating wheel, and a plurality of air holes are formed in the positions, located between the sector plates, of the groove bottom of the circular groove. And the plurality of air holes are distributed at equal intervals. The ventilation capacity of the mask can be conveniently adjusted according to needs so as to prevent excessive intake of carbon dioxide, and the mask is high in functionality and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a face mask capable of avoiding hyperventilation. Background Technique

[0002] Hyperventilation syndrome, also known as respiratory alkalosis syndrome, is caused by major life events, strong emotional conflicts, suggestion or self-suggestion acting on susceptible individuals, resulting in abnormal regulation of the respiratory center, too fast or too deep breathing, and excessive excretion of CO2 in the body. This syndrome is characterized by a rapid decrease in PaCO2 < 20 mmHg and a significant increase in blood pH value > 7.55, which is a type of hypocapnia. The manifestations include chest tightness or pain, a sense of suffocation, numbness around the mouth and at the extremities of the limbs, muscle pain or limb rigidity, and occasionally confusion and syncope. In Europe, the incidence accounts for 4% - 11% of the total number of outpatient visits. In China, this disease has not been taken seriously and is often misdiagnosed. Clinically, generally, patients need to inhale carbon dioxide for a period of time to limit their ventilation for correction.

[0003] In clinical practice, doctors or nurses usually use a self-made paper tube or paper bag to cover the patient's mouth and nose to recycle the exhaled carbon dioxide, reducing the exhaled carbon dioxide and compensatorily increasing the carbon dioxide concentration in the blood. The PaCO2 in the body can return to normal, but it is also possible to inhale too much carbon dioxide, causing iatrogenic respiratory acidosis or other hazards. Therefore, a small amount of external air needs to be inhaled to reduce the carbon dioxide concentration. However, the self-made paper tubes or paper bags in the existing technology are not convenient for adjusting the amount of inhaled air. Therefore, we have developed a face mask capable of avoiding hyperventilation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a face mask capable of avoiding hyperventilation, which can be convenient for adjusting the ventilation volume of the face mask according to needs to prevent excessive intake of carbon dioxide, has strong functionality and is convenient to use, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A face mask capable of avoiding hyperventilation includes a face mask body. A circular groove is provided on the front side of the face mask body. A runner is provided in the middle of the circular groove. A cavity is provided in the middle of the runner. A through hole is provided on the cavity wall close to the face mask body. A rotating shaft is slidably provided in the through hole. Both ends of the rotating shaft extend outside the through hole. One end of the rotating shaft is fixedly connected to the center of the groove wall of the circular groove. An abutting mechanism is provided at one end of the rotating shaft located in the cavity. A plurality of fan-shaped plates are evenly and fixedly provided on the side wall of the runner close to the face mask body. A plurality of ventilation holes are provided at the bottom of the circular groove between the plurality of fan-shaped plates. The plurality of ventilation holes are arranged at equal intervals.

[0007] Preferably, the pressing mechanism includes a circular block fixedly connected to one end of the rotating shaft located in the cavity, and a spring is movably sleeved on the shaft wall of the rotating shaft between the circular block and the cavity.

[0008] Preferably, the diameter of the circular block is larger than that of the rotating shaft.

[0009] Preferably, the spring is always in a compressed state.

[0010] Preferably, anti-slip protrusions are fixedly provided on the circumferential wall of the rotating wheel.

[0011] Preferably, a rubber pad is fixedly provided on the side of the sector plate close to the mask body.

[0012] Preferably, elastic straps are fixedly provided on both sides of the mask body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The mask capable of avoiding excessive ventilation, through the provided mask body, elastic straps, ventilation holes, rubber pads, sector plates, rotating wheels, anti-slip protrusions, rotating shafts, circular blocks, and springs, wears the mask body on the patient's face through the elastic straps. Since the number of ventilation holes on the mask body is small and the hole diameter is small, it provides weak air flow to prevent the patient from suffocating, and better replaces the method of covering the face with a paper bag to avoid excessive ventilation. When it is necessary to adjust the ventilation volume of the mask, rotate the rotating wheel. The rotating wheel drives a plurality of sector plates to rotate. The spring pushes the rotating wheel, and the rotating wheel drives a plurality of sector plates to rotate. The more ventilation holes covered by the rubber pads on the sector plates, the smaller the ventilation volume. The rubber pad not only improves the sealing performance between the sector plate and the ventilation hole, but also increases the friction between the sector plate and the circular groove. Combined with the pressing mechanism, the plurality of sector plates can be prevented from rotating randomly, which is convenient for adjusting the ventilation volume of the mask as needed to prevent excessive intake of carbon dioxide, with strong functionality and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a mask capable of avoiding excessive ventilation.

[0016] Figure 2 It is a schematic internal structural diagram of a mask capable of avoiding excessive ventilation.

[0017] Figure 3 It is Figure 1 an enlarged schematic view of part A in

[0018] Figure 4 It is Figure 2 an enlarged schematic view of part B in

[0019] In the figure: 1. Mask body; 2. Elastic strap; 3. Ventilation holes; 4. Rubber pad; 5. Sector plate; 6. Rotating wheel; 7. Anti-slip protrusions; 8. Rotating shaft; 9. Circular block; 10. Spring. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 4 , the present invention provides a technical solution:

[0022] A mask that can avoid excessive ventilation, including a mask body 1. A circular groove is provided on the front side of the mask body 1. A rotating wheel 6 is provided in the middle of the circular groove. A cavity is opened in the middle of the rotating wheel 6. A through hole is opened on the side wall of the cavity close to the mask body 1. A rotating shaft 8 is slidably provided in the through hole. Both ends of the rotating shaft 8 extend outside the through hole. One end of the rotating shaft 8 is fixedly connected to the center of the groove wall of the circular groove. An abutting mechanism is provided at one end of the rotating shaft 8 located in the cavity. A plurality of sector plates 5 are evenly and fixedly provided on the side wall of the rotating wheel 6 close to the mask body 1. A plurality of ventilation holes 3 are opened at the bottom of the circular groove between the plurality of sector plates 5. The plurality of ventilation holes 3 are arranged at equal intervals.

[0023] The abutting mechanism includes a circular block 9. The circular block 9 is fixedly connected to one end of the rotating shaft 8 located in the cavity. A spring 10 is movably sleeved on the shaft wall of the rotating shaft 8 between the circular block 9 and the cavity. The diameter of the circular block 9 is greater than the diameter of the rotating shaft 8. The spring 10 is always in a compressed state.

[0024] Anti-slip protrusions 7 are fixedly provided on the circumferential wall of the rotating wheel 6. The anti-slip protrusions 7 improve the anti-slip performance of the rotating wheel 6.

[0025] A rubber pad 4 is fixedly provided on the side of the sector plate 5 close to the mask body 1. The rubber pad 4 not only improves the sealing performance between the sector plate 5 and the ventilation holes 3, but also increases the friction between the sector plate 5 and the circular groove. Combined with the abutting mechanism, the plurality of sector plates 5 will not rotate randomly.

[0026] Elastic straps 2 are fixedly provided on both sides of the mask body 1. The elastic straps 2 facilitate wearing the mask body 1 on the face of the patient.

[0027] In use, the mask body 1 is worn on the patient's face through the elastic strap 2. Since the number of ventilation holes on the mask body 1 is small and the aperture is small, it provides a weak air flow, preventing the patient from suffocating and better replacing the method of covering the face with a paper bag to avoid excessive ventilation. When it is necessary to adjust the ventilation volume of the mask body 1, rotate the runner 6. The runner 6 drives a plurality of sector plates 5 to rotate. The spring 10 pushes the runner 6, and the runner 6 drives a plurality of sector plates 5 to rotate. The more ventilation holes 3 covered by the rubber pads 4 on the sector plates 5, the smaller the ventilation volume. The rubber pads 4 not only improve the sealing performance between the sector plates 5 and the ventilation holes 3, but also increase the friction between the sector plates 5 and the circular grooves. Combined with the fastening mechanism, the plurality of sector plates 5 can be prevented from rotating randomly, facilitating the adjustment of the ventilation volume of the mask according to needs to prevent excessive intake of carbon dioxide, with strong functionality and convenient use.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A face mask capable of avoiding hyperventilation, comprising a face mask body (1), characterized in that: A circular groove is provided on the front side of the mask body (1). A runner (6) is provided in the middle of the circular groove. A cavity is formed in the middle of the runner (6). A through hole is formed in the cavity wall on the side close to the mask body (1). A rotating shaft (8) is slidably arranged in the through hole. Both ends of the rotating shaft (8) extend outside the through hole. One end of the rotating shaft (8) is fixedly connected to the center of the groove wall of the circular groove. An abutting mechanism is arranged at one end of the rotating shaft (8) located in the cavity. A plurality of sector plates (5) are evenly and fixedly arranged on the side wall of the runner (6) close to the mask body (1). A plurality of ventilation holes (3) are formed at the bottom of the circular groove between the plurality of sector plates (5). The plurality of ventilation holes (3) are arranged at equal intervals.

2. The mask capable of avoiding excessive ventilation according to claim 1, characterized in that: The abutting mechanism includes a circular block (9). The circular block (9) is fixedly connected to one end of the rotating shaft (8) located in the cavity. A spring (10) is movably sleeved on the shaft wall of the rotating shaft (8) between the circular block (9) and the cavity.

3. The mask capable of avoiding excessive ventilation according to claim 2, wherein: The diameter of the circular block (9) is larger than the diameter of the rotating shaft (8).

4. A face mask capable of avoiding excessive ventilation according to claim 2, characterized in that: The spring (10) is always in a compressed state.

5. A face mask capable of avoiding excessive ventilation according to claim 1, characterized in that: Anti-slip protrusions (7) are fixedly arranged on the circumferential wall of the runner (6).

6. The mask capable of avoiding excessive ventilation according to claim 1, wherein: A rubber pad (4) is fixedly arranged on the side of the sector plate (5) close to the mask body (1).

7. A face mask capable of avoiding excessive ventilation according to claim 1, characterized in that: Elastic straps (2) are fixedly arranged on both sides of the mask body (1).

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