A large field of view mask
Patent Information
- Application Number
- CN202522632690.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-11
AI Technical Summary
但上述防毒面具在使用上存在问题：防毒面具上设置有用于观看周围环境的眼窗，但是一些防毒面具上的眼窗设置的较小，会导致整个防毒面具在佩戴后，其观测视野变窄，不利于使用者的使用
（1）通过延长部缩小呼气阀的端面与口鼻之间的距离，缩小了口鼻罩的长度，同时降低口鼻罩高度，使口鼻罩表面的倾角变大，降低了口鼻罩对视野的阻挡，扩大了视野；
Smart Images
Figure CN224911635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mask technology, specifically a wide field of vision mask. Background Technology
[0002] Gas masks are personal protective equipment and individual soldier protective equipment. They are worn on the head to protect a person's respiratory organs, eyes, and face from toxic substances such as poisonous gases, dust, bacteria, and toxic vapors. However, the above-mentioned gas masks have problems in use: the gas masks are equipped with eye windows for viewing the surrounding environment, but the eye windows on some gas masks are set too small, which will cause the field of view of the entire gas mask to narrow after wearing, which is not conducive to the use of the user. Utility Model Content
[0003] The purpose of this invention is to provide a wide field of vision mask. By using an exhalation valve that is tilted downwards and an extension to reduce the distance between the exhalation valve and the mouth and nose, the length of the mask is reduced. At the same time, the height of the mask is lowered, and the tilt angle of the mask surface is increased, which reduces the obstruction of the mask to the field of vision and expands the field of vision.
[0004] This utility model provides the following technical solution: a wide field of vision mask, comprising a soft rubber cover, a transparent mask, an oral and nasal mask, and an exhalation valve, characterized in that: the transparent mask is fixed on the inner edge of the soft rubber cover, the transparent mask has an exhalation hole, the exhalation valve is connected to the exhalation hole, the oral and nasal mask is connected to the other end of the exhalation valve, and the oral and nasal mask is located inside the transparent mask; The exhalation valve includes a valve body and an extension. The valve body is formed on one end of the extension. The mouth and nose mask is detachably connected to the other end face of the extension. The extension reduces the distance between the exhalation valve and the mouth and nose. The side of the exhalation valve is distributed at an angle of 10°-30° with the horizontal plane. The side of the exhalation valve is distributed at an obtuse angle with the transparent mask.
[0005] According to the above technical solution, the angle between the side of the exhalation valve and the transparent mask is 105-120°. By setting the exhalation valve at this angle, the position of the exhalation valve is lowered, reducing the obstruction of the exhalation valve to the field of vision.
[0006] According to the above technical solution, an annular groove is provided on the end of the extension, and a folded edge is formed on the end face of the mouth and nose mask. The folded edge is sleeved on the annular groove to fix the mouth and nose mask to the exhalation valve. By fastening the folded edge in the annular groove, the connection strength between the mouth and nose mask and the exhalation valve is enhanced, while ensuring the sealing performance.
[0007] According to the above technical solution, the transparent mask includes an observation part, a transition part, an exhalation hole, and a mounting side located on the outer edge. The observation part is located directly in front of the eyes, the exhalation hole is opened in front of the mouth and nose, and the transition part is formed between the observation part and the exhalation hole. By setting the transition part downward at an angle, the transition part is positioned downward along the line of sight and will not obstruct the field of vision.
[0008] According to the above technical solution, the observation part is a convex transparent lens, which increases the angle of the viewing window and further expands the field of view.
[0009] According to the above technical solution, the mouth and nose mask is a flexible mask that fits snugly against the mouth and nose. Air inlets are provided on both sides of the mouth and nose mask, and air valves are installed in the air inlets to make the mouth and nose mask conform to the curve of the human face, so that the mouth and nose mask fits the face better and more snugly, without any excess warping that would affect vision.
[0010] According to the above technical solution, a filter valve hole is provided on the side of the transparent mask. The filter valve hole is located in the cheek area of the mask, so that the connecting parts on the mask are located in the cheek area, reducing the obstruction of the lower field of vision.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: (1) By extending the end face of the exhalation valve to reduce the distance between the mouth and nose, the length of the mouth and nose mask is reduced, and the height of the mouth and nose mask is lowered, so that the tilt angle of the surface of the mouth and nose mask is increased, reducing the obstruction of the mouth and nose mask to the field of vision and expanding the field of vision. (2) Insert the mouth and nose mask into the transparent mask, with the edge of the mouth and nose mask fitting against the mouth and nose, so that there is no extra warping at the edge of the mouth and nose mask, reducing obstruction of the field of vision and further widening the field of vision. (3) The position of the exhalation valve was lowered to reduce the obstruction of the view by the exhalation valve. At the same time, the angle of the observation part was increased to widen the field of vision. Meanwhile, the filter valve hole was moved down to the side of the transparent mask to reduce obstruction and further widen the field of vision. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a side view of the mouth and nose mask of this utility model; Figure 4 This is a side view of the transparent face mask of this utility model; Figure 5 This is a front view of the transparent face mask of this utility model; Figure 6 This is a front view of the flexible cover of this utility model; In the diagram: 1. Nose and nose mask; 11. Flexible mask; 111. Inhalation port; 112. Folded edge; 12. Inhalation valve; 13. Exhalation valve; 131. Valve body; 132. Extension; 2. Transparent mask; 21. Observation section; 22. Transition section; 23. Exhalation port; 24. Mounting side; 25. Filter valve port; 3. Soft rubber mask body. Detailed Implementation
[0013] 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.
[0014] Please see Figures 1 to 6 This utility model provides a technical solution: a wide field of vision mask, including a soft rubber cover 3, a transparent mask 2, a mouth and nose mask 1, and an exhalation valve 13. The transparent mask 2 is fixed to the inner edge of the soft rubber cover 3, making the entire surface of the mask transparent and improving the field of vision. An exhalation hole 23 is provided on the transparent mask 2, and the exhalation valve 13 is threaded into the exhalation hole 23. The mouth and nose mask 1 is fitted onto the inner end face of the exhalation valve 13, placing the mouth and nose mask 1 inside the transparent mask 2. The exhalation valve 13 includes a valve body 131 and an extension 132. The valve body 131 is formed on one end of the extension 132 and is threaded into the exhalation hole 23 of the transparent mask 2. The extension 132 extends to the inner side of the transparent mask 2. 2. By reducing the distance between the other end face of the exhalation valve 13 and the mouth and nose, the volume of the oronasal mask 1 is reduced, the carbon dioxide in the oronasal mask 1 during exhalation is reduced, and the breathing smoothness inside the mask is improved. At the same time, the length of the oronasal mask 1 is reduced, the tilt angle of the surface of the oronasal mask 1 is increased, the obstruction of the oronasal mask 1 to the field of vision is reduced, and the field of vision is expanded. The side of the exhalation valve 13 is distributed at an angle of 10°-30° with the horizontal plane, and the angle between the side of the exhalation valve 13 and the transparent mask 2 is 105-120°, so that the exhalation valve 13 is set at an angle downward, reducing the obstruction of the field of vision. In addition, the edge of the oronasal mask 1 fits the mouth and nose, so that the edge of the oronasal mask 1 has no extra warping parts, reducing the obstruction of the field of vision and further widening the field of vision.
[0015] like Figure 3As shown, an annular groove is provided on the end of the extension 132, and an annular folded edge 112 is formed on the end face of the mouth and nose mask 1. The folded edge 112 is sleeved on the annular groove to fix the mouth and nose mask 1 to the exhalation valve 13, thereby enhancing the connection strength between the mouth and nose mask 1 and the exhalation valve 13, and at the same time enhancing the airtightness between the exhalation valve 13 and the mouth and nose mask 1.
[0016] like Figure 5 As shown, the transparent mask 2 includes an observation section 21, a transition section 22, an exhalation hole 23, and a mounting side 24 located on the outer edge. The mounting side 24 is embedded in the inner edge of the soft rubber mask body 3. The observation section 21 is located directly in front of the eyes. The observation section 21 is a convex arc-shaped transparent lens, which increases the angle of the viewing window and further expands the field of vision. The exhalation hole 23 is located in front of the mouth and nose. The transition section 22 is formed between the observation section 21 and the exhalation hole 23. The transition section 22 is an inclined downward extension that extends downward along the line of sight and does not obstruct the line of sight.
[0017] like Figure 6 As shown, the mouth and nose mask 1 is a flexible mask 11 that fits the mouth and nose. Two inhalation holes 111 are opened on both sides of the mouth and nose mask 1. The inhalation holes 111 are located on both sides of the nose. An inhalation valve 12 is installed in the inhalation hole 111, which reduces the obstruction of the field of vision by the inhalation valve 12. At the same time, the two inhalation valves 12 increase the oxygen intake.
[0018] like Figure 6 As shown, filter valve holes 25 are provided on both sides of the transparent mask 2. The filter valve holes 25 are all located on the cheeks of the mask. All the matching parts of the mask are installed on the cheeks to avoid them appearing in the field of vision and reduce obstruction of vision.
[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A wide-field-of-view mask, comprising a soft rubber body, a transparent face mask, a mouth and nose mask, and an exhalation valve, characterized in that: The transparent mask is fixed to the inner edge of the soft rubber mask body. The transparent mask has an exhalation hole, the exhalation valve is connected to the exhalation hole, and the mouth and nose mask is connected to the other end of the exhalation valve. The mouth and nose mask is located inside the transparent mask. The exhalation valve includes a valve body and an extension. The valve body is formed on one end of the extension. The mouth and nose mask is detachably connected to the other end face of the extension. The extension reduces the distance between the exhalation valve and the mouth and nose. The side of the exhalation valve is distributed at an angle of 10°-30° with the horizontal plane. The side of the exhalation valve is distributed at an obtuse angle with the transparent mask.
2. The wide-field-of-view mask according to claim 1, characterized in that: The angle between the side of the exhalation valve and the transparent mask is 105-120°.
3. The wide-field-of-view mask according to claim 1, characterized in that: An annular groove is provided at the end of the extension, and a folded edge is formed on the end face of the mouth and nose mask. The folded edge is fitted onto the annular groove to fix the mouth and nose mask to the exhalation valve.
4. A wide-field-of-view mask according to claim 1, characterized in that: The transparent face mask includes an observation section, a transition section, an exhalation hole, and a mounting side located on the outer edge. The observation section is located directly in front of the eyes, the exhalation hole is located in front of the mouth and nose, and the transition section is formed between the observation section and the exhalation hole.
5. A wide-field-of-view mask according to claim 4, characterized in that: The observation section is a convex transparent lens.
6. A wide-field-of-view mask according to claim 1, characterized in that: The mouth and nose mask is a flexible mask that fits snugly against the mouth and nose. Inhalation holes are provided on both sides of the mouth and nose mask, and an inhalation valve is installed in each inhalation hole.
7. A wide-field-of-view mask according to claim 1, characterized in that: The transparent mask has a filter valve hole on its side, which is located in the cheek area of the mask.